API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

Daripada 86,020 ulasan, klien menilai API Developers 4.9 daripada 5 bintang.
Upah API Developers

API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

Daripada 86,020 ulasan, klien menilai API Developers 4.9 daripada 5 bintang.
Upah API Developers

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    284 pekerjaan dijumpai
    Custom Nostr Fork Development
    6 hari left
    Disahkan

    I’m forking and need a seasoned TypeScript engineer who is totally at ease working Git-first and can dive straight into a Nostr codebase. The immediate goal is to introduce a suite of non-public features around improved listings and, above all, a powerful personalised content-suggestion layer. Scope • Extend the existing front-end and back-end (TypeScript, React, Node) with the new private listing modules I will outline in Figma and Notion. • Build a recommendation engine grounded in socio-psychology principles rather than the usual collaborative or content-based filters. I will supply the research notes and sample scoring model; you will translate them into production code, unit tests, and API endpoints. • Keep everything behind a feature flag so the public fo...

    $537 Average bid
    $537 Avg Bida
    123 bida

    I am seeking a full custom SaaS rebuild of RememberMe, a QR based memorial platform that links engraved stainless steel plaques to digital memorial profiles containing photos, videos, audio recordings, obituaries, biographies, timelines, and family submitted content. This is a ground up rebuild designed for long term scalability (millions of users), performance, and security, not a template site. Key Requirements: Scalable cloud-based backend architecture Secure user authentication and account management Media storage and optimization (photos, video, audio) Stripe integration for e-commerce checkout Automated unique QR code generation tied to profiles Short, engraving-friendly URL system Public memorial pages (SEO optimized) Robust admin dashboard with: User management Order management &am...

    $7127 Average bid
    $7127 Avg Bida
    123 bida

    We have developed two Python scripts to prepare VTT files (*.vtt) for translation and another to prepare them for delivery to the client. The first script combines segmented text for translation. The second script re-splits the translated content into properly timed captions for delivery. Currently, if a project manager wants to use the scripts, they need to email the files to the script owner, who manually runs the first script and returns the processed files to the project manager. The project manager then continues with the workflow. Once the translated content is finalised, the project manager emails the files back to the script owner to run the second script, and the script owner sends the processed files back to the project manager for delivery. We want to implement a solution tha...

    $33 / hr Average bid
    $33 / hr Avg Bida
    144 bida

    I’m building a lightweight MVP that lets independent cafés run a fully automatic, card-linked loyalty programme without issuing separate cards or apps. The core of the job is a secure backend service that: • Listens to Square and SumUp webhooks / APIs, fingerprints the payment card (never the full PAN) and recognises returning customers. • Increments a visit counter and, when a customer hits the reward threshold, instantly triggers the reward logic. • Fires an SMS through Plivo to let the guest know they’ve just earned, for example, a free coffee. What I’ll look for in the finished work 1. Clean, well-documented code (language and framework are up to you as long as it’s reliable and easy to maintain). 2. Clear setup instructions a c...

    $703 Average bid
    $703 Avg Bida
    146 bida

    Matrimonial Community App – Smart, Secure & Fully Automated Flow User Journey: Users visit the official website → download Android/iOS app → OTP login → fill biodata (personal, family, contact, etc.) → upload 2–4 photos (auto watermark + unique Biodata ID generated) → complete payment (UPI/Card/Netbanking). Only paid profiles go to Admin review. Approved profiles are auto-added to assigned private groups; rejected profiles are auto-refunded (Razorpay, ~24 hrs) with notification. Inside the App & Groups: Members can view biodata + photos (zoom enabled), shortlist profiles, and contact Admin via chat/call. Screenshots and downloads are disabled for privacy. Profiles are visible only within assigned groups. Smart system rotates unique biodata mon...

    $376 Average bid
    $376 Avg Bida
    35 bida

    I'm looking for an experienced full-stack developer to implement the MVP end-to-end. I'll need a video call, so no scams here. Overview Clients submit coding tasks through a store-like request system. Each request becomes a project with clear lifecycle tracking, communication, time tracking, and weekly billing. The platform must support multiple roles: Client, Developer, and Admin. Core Features (MVP) Service Request & Project Creation • Store-style service selection • Structured task submission (requirements, priority, attachments) • Automatic project creation after request/payment Project Lifecycle Management • Status flow (e.g. Received → Investigating → In Progress → Review → Completed) • Progress updates and activity hi...

    $518 Average bid
    $518 Avg Bida
    255 bida

    Desarrollador/a Especializado en – Integraciones y Automatizaciones Descripción del Proyecto Estamos buscando un/a Desarrollador/a con experiencia en para trabajar en integraciones, automatizaciones y soluciones técnicas sobre la plataforma. es una plataforma omnicanal de mensajería empresarial impulsada por IA, que unifica conversaciones de múltiples canales (WhatsApp, Instagram, Messenger, correo electrónico, chat web, etc.) para ventas, marketing y soporte. Este rol es ideal para alguien con fuerte enfoque en desarrollo técnico, API, automatizaciones y escalabilidad de soluciones basadas en Respond.io. Responsabilidades Integración y Desarrollo Desarrollar integraciones con APIs de para conectar con otros sistemas (CRM, au...

    $1390 Average bid
    $1390 Avg Bida
    71 bida

    Project: Retell AI ↔ Zenbooker Scheduling Bridge plus FluentCRM Lead Capture What we’re building: A backend bridge that lets Retell AI automatically book, reschedule, and cancel appointments in Zenbooker during live phone calls while also capturing leads immediately in FluentCRM for abandoned follow up sequences. Must have outcomes: When a caller tells Retell AI to book, reschedule, or cancel, the integration must * Create, reschedule, or cancel the correct appointment in Zenbooker * Trigger Zenbooker’s built in confirmation email automatically when a booking is created, assuming notifications are enabled * Handle reschedules and cancellations cleanly with no broken states and no double booking * Capture the caller as a lead in FluentCRM as soon as we have name plus pho...

    $162 Average bid
    $162 Avg Bida
    135 bida

    To develop a VoIP calling app direct calling phone/mobile with custom caller ID Admin portal- 1. User management 2. Custom caller ID 3. Calling history with IP 4. Manage User details, Name, Email, User ID, Showing password, Caller ID with have change custom caller ID 5. Save Calling details with IP, calling number, time etc 6. Manage User by Admin (Add & remove User) 7. Admin portal development 8. User iOS App & Android App with Login Email id & password

    $284 Average bid
    $284 Avg Bida
    23 bida

    PotrzebujÄ™ konfiguratora ofert skÅ‚adajÄ…cego siÄ™ z dwóch powiÄ…zanych moduÅ‚ów. 1. ModuÅ‚ widoczny dla klienta • Osadzany bezpoÅ›rednio na stronie www. • Aby poznać szczegóÅ‚y, użytkownik musi wypeÅ‚nić trzy pola: Adres e-mail, Numer telefonu oraz ImiÄ™ i nazwisko. • Po przesÅ‚aniu danych system może wyÅ›wietlić podsumowanie lub wysÅ‚ać je mailowo – forma przekazania jest do wspólnego ustalenia. 2. ModuÅ‚ wewnÄ™trzny dla sprzedawcy • DostÄ™p tylko po zalogowaniu. • Zawiera: Opcje produktu, Kalkulator cenowy oraz Opcje rabatowania, dziÄ™ki czemu sprzedawca może szybko stworzyć spersonalizowanÄ… ofertÄ™ i od razu obliczyć koÅ„cowÄ… cenÄ™. • Wynik konfiguracji powinien dać siÄ™ zapisać lub wyeksportować (PDF/CSV), aby Å‚atw...

    $159 Average bid
    $159 Avg Bida
    26 bida

    I already run on the WhatsApp Business API and now need it properly connected to Meta so I can handle both automated replies and bulk messaging from one place. Here is what I expect: • Map my current WhatsApp Business API number into Meta Business Manager, verify it, and activate webhooks. • Build out the automated flow reply I have in mind so it can answer customers instantly—this includes template approval inside Meta and any required server-side logic. • Enable a straightforward method for sending large-volume marketing broadcasts that stays within Meta’s policy limits (24-hour window, opt-in, template use). You may use Node.js, Python, PHP or another language you’re comfortable with, as long as the final solution is documented and ready for m...

    $31 Average bid
    $31 Avg Bida
    15 bida

    I need a web-based hotel booking platform where travelers can type a U.S. ZIP code, instantly see nearby hotel options, and complete the reservation at the best agent-only rate by entering a valid IATA number at checkout. The core build must: • Pull live availability, pricing, and booking capabilities through direct API integrations with Amadeus, Sabre, and Travelport. • Offer traveler-facing search filters for price range, star rating, and specific amenities. • Display results sorted by distance from the entered ZIP. • Securely process the booking, verify the IATA, and return confirmation details in real time. I’m looking for a clean, responsive interface, clear documentation of each API connection, and deployment on a cloud host of your choice. Onc...

    $538 Average bid
    $538 Avg Bida
    187 bida
    FastAPI Image Cutline Service
    6 hari left
    Disahkan

    I need a clean, self-contained FastAPI microservice that accepts an uploaded JPEG or PNG, automatically traces the outer contour of the visible subject, expands that shape by a configurable offset, and returns the resulting cutline as an SVG file. Auto-outline detection is the single most important processing step; edge smoothing and colour tweaks are nice-to-haves but not required for this phase. Here’s the flow I have in mind. A user hits /outline with a multipart upload, the API queues the image, runs the outline routine (OpenCV, scikit-image, or any library you prefer), inflates the path by the requested number of pixels or mm, then streams back plain-text SVG. A second, optional endpoint /health is enough for monitoring. The service must comfortably handle images up to roughly ...

    $168 Average bid
    $168 Avg Bida
    56 bida

    Hello, We are looking for a "hacker-level" Python Scraper who specializes in cutting-edge data extraction techniques. We are specifically looking for an expert who can scrape a wide range of data, including emails, from , while efficiently fetching data while avoiding credit costs. {If you read this completely, start with mj.} If you have the technical skills to overcome these limitations and deliver high-volume results, then you are the expert we are looking for. Let's discuss the project in detail.

    $453 Average bid
    $453 Avg Bida
    43 bida

    I’m hiring a strong AI Engineer / Agent Architect to build a personal AI Chief of Staff based on OpenClaw / Moltbot (or a compatible architecture with a clear OpenClaw/Moltbot migration path). I need more than a chatbot: a true multi-agent system with 1 supervisor + worker swarm that delegates tasks, cross-checks outputs, scores quality, and continuously improves. Goal A 24/7 system that: turns my goals into structured execution, delegates across LLMs/tools, enforces multi-layer quality control, optimizes token/infra costs (no wasteful loops), proposes new skills/upgrades (applied only with my approval). Initial Focus 1) AI Influencer Factory Create/manage multiple virtual influencer personas (style, voice, strategy), generate text/image/video content, run publishing pipeli...

    $464 Average bid
    $464 Avg Bida
    44 bida

    I’m building an Android-only application and need a clean, secure login flow that relies on one-time passwords sent strictly by SMS. Users will enter their phone number, receive the code, and gain access after successful verification—no usernames or emails involved. You’ll be responsible for wiring up the full authentication cycle, choosing a reliable SMS gateway, and writing the Android code (Kotlin or Java—your call) that: • accepts the phone number, • triggers the SMS OTP dispatch, • validates the returned code with sensible expiry and limited retries, • handles resend logic, and • stores / refreshes session tokens once the user is verified. Deliverables must include the documented source code, any backend or cloud function n...

    $86 Average bid
    $86 Avg Bida
    42 bida

    I want to build a service marketplace app similar to Sheba/Urban Company. Structure: Category → Sub‑Category → Service (service is the base unit) Main Modules: 1) Customer App 2) Worker App 3) Admin Panel (Web) 4) Backend + Database + APIs Core Features: - Category/Sub‑Category/Service listing - Fixed & Variable Pricing Engine - Fixed & Variable Time Calculation - Booking System - Worker Matching (primary + extended radius) - Payment Integration (bKash/Nagad/SSLCommerz) - Big Job Module (inspection + verification) - Notifications - Service activation/deactivation - Promo support Admin Panel: - Add/Edit Category, Sub‑Category, Service - Set price type (fixed/per_sqft/per_room/per_unit) - Set base price, min/max price, base unit - Set time type (fixed/variable) - Set ba...

    $544 Average bid
    $544 Avg Bida
    158 bida

    hello, i'm building a social layer for polymarket but can't place an ordrer trhough i keep getting this error XHR POST [HTTP/3 400 175ms] [CLOB Client] request error {"status":400,"statusText":"","data":{"error":"invalid signature"},"config":{"transitional":{"silentJSONParsing":true,"forcedJSONParsing":true,"clarifyTimeoutError":false},"adapter":["xhr","http","fetch"],"transformRequest":[null],"transformResponse":[null],"timeout":0,"xsrfCookieName":"XSRF-TOKEN","xsrfHeaderName":"X-XSRF-TOKEN","maxContentLength":-1,"maxBodyLength":-1,"...

    $156 Average bid
    $156 Avg Bida
    111 bida

    Je dispose déjà d’une plateforme SaaS en PHP / MySQL ; l’objectif est maintenant de lui adjoindre une application mobile native Android et iOS entièrement en français. L’app devra communiquer avec mon back-end via API (REST / JSON) afin de récupérer et mettre à jour les données existantes. Fonctionnalités clés • Notifications push configurables depuis le SaaS • Mode hors ligne avec synchronisation automatique dès qu’une connexion est retrouvée • Prise de photo directe depuis l’application puis annotation libre (dessin, surlignage) avant envoi L’expérience utilisateur doit rester fluide et réactive, c’est mon critère num&ea...

    $674 Average bid
    $674 Avg Bida
    104 bida

    Rozwijam projekt z obszaru mental health / health-tech, którego celem jest stworzenie nowoczesnej, niskoprogowej platformy wczesnego wsparcia psychicznego. Projekt odpowiada na realnÄ… lukÄ™ systemowÄ…: miliony osób pozostajÄ… „pomiÄ™dzy” brakiem wsparcia a profesjonalnÄ… pomocÄ… – z powodu barier geograficznych, finansowych, spoÅ‚ecznych i psychologicznych. Platforma dziaÅ‚a już w podstawowej wersji spoÅ‚ecznoÅ›ciowej. Kolejny etap to rozwój peÅ‚nego modelu hybrydowego: • bezpieczna przestrzeÅ„ spoÅ‚eczna • moderowane grupy wsparcia • strefa wiedzy / psychoedukacja • komunikacja synchroniczna i asynchroniczna • model pÅ‚atnych usÅ‚ug premium (B2C / B2B w przyszÅ‚oÅ›ci) • możliwość dalszego skalowania technologicznego Szukam partnera techn...

    $18 / hr Average bid
    $18 / hr Avg Bida
    26 bida

    I need a SaaS tool for export costing. Key functionalities: - Primary function: Cost calculation - Material costs - Labor costs - Shipping costs - Support for multiple currencies Ideal skills and experience: - SaaS development expertise - Strong background in cost calculation algorithms - Experience with multi-currency systems - User-friendly interface design Please provide relevant samples and experience.

    $270 Average bid
    $270 Avg Bida
    53 bida

    Business Name: Score Predictor Concept: Mobile app where users predict football match scores, earn points, and win small cash prizes. Goal: Build MVP prototype with Premier League matches for testing, then expand to Championship, European competitions, and special jackpot games. Business Model: Users pay a small entry fee per round, £1 per round. Users can predict as many rounds as they wish; winners receive cash prizes. Revenue comes from entry fees and potential in-app advertising or sponsorship later. Backend: Connect to a football data API for live scores & league tables; scalable for future expansion.

    $3065 Average bid
    $3065 Avg Bida
    228 bida

    We are looking for a developer to build a scalable web platform similar to WhatsForm. The core objective is simple. Users should be able to create a form, share its link, and when someone submits the form, a pre-filled WhatsApp message should open to a predefined number while the submitted data also gets saved automatically in the user’s connected Google Sheet. The platform should allow users to build basic forms with fields like name, mobile, email, dropdown, checkbox, and text inputs. Each form should generate a shareable public link. On submission, the system should redirect to WhatsApp with the filled data in message format (no need for auto-send via API in Phase 1). Users must be able to connect their Google account and select or create a sheet where all responses are stored w...

    $82 Average bid
    $82 Avg Bida
    30 bida

    This project entails building a generative-AI web application that runs entirely on OpenAI GPT and delivers a smooth, real-time, text-based chat experience. The frontend must be responsive so users on desktop or mobile feel no friction, while the backend handles dynamic prompts, keeps short-term conversational context, and lets me fine-tune how the model responds. Core functionality • Secure user authentication (log in / sign-up) • Drag-and-drop or button-based file sharing inside the chat window • Conversational memory so the AI remembers context during a session and resets cleanly when required Behind the scenes the app should: • Call the OpenAI GPT API efficiently, batching or streaming tokens where it makes sense to keep latency low • Store transien...

    $294 Average bid
    $294 Avg Bida
    73 bida

    Project Overview: We are looking for a skilled developer to create a comprehensive ERP-based mobile and web application to automate and streamline work management processes in our manufacturing company. The application should integrate various modules to improve productivity, reduce manual errors, and enhance decision-making. Modules: 1. Sales & Order Management - Lead Management - Quotation Management - Order Processing & Tracking -sales documentation 2. Production Planning & Scheduling - Production Scheduling - Material Requirement Planning (MRP) - Resource Allocation 3. Work Order Management - Work Order Creation & Assignment - Task Management - Progress Tracking 6. Customer Complaint Management - Complaint Registration - A...

    $1483 Average bid
    $1483 Avg Bida
    145 bida

    I am assembling a full-stack solution that ingests live financial databases, open-source macroeconomic feeds, and user-submitted figures, then turns all of it into forward-looking insights. The core of the product is an AI layer that delivers predictive analytics and runs configurable scenario simulations; the results need to surface instantly inside an intuitive web dashboard where users create and save their own reports and visual layouts. What I need from you is an end-to-end build: • Data layer – connectors that automatically pull structured and unstructured data from the three source categories above, plus a storage design that can scale as historical records grow. • ML & simulation engine – time-series forecasting models, Monte Carlo or agent-based simula...

    $21 / hr Average bid
    $21 / hr Avg Bida
    135 bida

    I need a mobile app that can create and print two identical copies of every bill—one for the customer and one for the driver—using a TVS thermal printer. Each bill will carry our company logo and a system-generated, unique barcode. When that barcode is scanned with any standard phone camera or scanner, the duplicate copy of the bill must open immediately on the user’s device. The workflow is simple: fewer than twelve fields are filled in for each transaction, the app saves the data, produces the two printouts, and stores a cloud-accessible version linked to the barcode. A straightforward username-and-password login keeps everything secure. Key points the finished solution must cover: • Seamless Bluetooth or USB communication with the TVS thermal printer (other bran...

    $199 Average bid
    $199 Avg Bida
    15 bida

    Laravel 12 Developer Needed to Develop Marketplace Platform (Reference Site Provided) We are looking for an experienced Laravel 12 developer to develop a complete marketplace platform based on our reference website. The frontend design must be 100% same as reference site, and the backend should include all required dashboards and management features. Payment gateway integration will be done using Razorpay. Project Requirements 1. Frontend 1.100% same design as reference website responsive payment integration booking & checkout system 2. Admin Dashboard Features (analytics & summary) Management Management 1. Admin can assign any package to any owner 4. Category & Subcategory (with image upload) 5. Package Management 6. Listing CRUD 1. Own...

    $306 Average bid
    $306 Avg Bida
    72 bida

    I’m rolling out a product that runs simultaneously on the web, iOS and Android, and I need a clean, unified way to handle user entry and keep everyone informed in real time. Authentication scope • Support OAuth flows (Google, Apple, etc.) • Maintain JWT-based sessions for our own username/password route • Offer social-media sign-ins side-by-side, all funnelling into a single user table Notification scope • Email messages for transactional events • Push alerts on the mobile apps • SMS for time-sensitive updates Deliverables 1. Reusable modules or SDK integrations for each platform 2. Secure backend endpoints (or rules) that issue and verify tokens 3. Trigger logic that selects the correct channel—email, push or SMS—based o...

    $15 Average bid
    $15 Avg Bida
    14 bida

    I am seeking an expert WordPress plugin developer to build a professional-grade, cross-browser cookie cleaner that gives administrators granular control over which specific cookies are deleted when users log out. This is not a simple "delete everything" plugin—existing solutions fail because they either rely exclusively on the Clear-Site-Data header (which does not work on Safari, iOS browsers, or Edge Legacy), or they lack a proper admin interface for selective deletion, or they cannot handle HttpOnly cookies (like WordPress authentication cookies) which JavaScript cannot touch. I need a four-layer hybrid solution that: (1) sends the Clear-Site-Data header only to supporting browsers (Chrome, Firefox, Edge Chromium), (2) performs server-side PHP deletion of HttpOnly cookie...

    $20 Average bid
    $20 Avg Bida
    36 bida

    I need a reliable solution that can pull data from LinkedIn and insert it straight into a database I specify. The core requirement is the automated transfer—once the tool finishes scraping, every captured field should already be sitting in the database ready for queries and reporting, no manual copy-paste. You’ll advise me on the best approach to authenticate, respect rate limits, and minimise the risk of blocks while still collecting the typical profile-level details (name, headline, company, location, experience, education, skills and anything else you can legally obtain). I will confirm the final field list before you begin. Key objectives • Build or configure a scraper / API wrapper that logs in, navigates to each target profile and captures the agreed-upon fields ...

    $14 / hr Average bid
    $14 / hr Avg Bida
    29 bida

    I need A 1V1 Calling dating app. I purchase a Flutter App UI from codecanyon. The Work is Create Admin Panel UI Make It functional Create API Connect With App Create Database Modifi App UI According I need Demo Admin Panel ( I need Like This ) Admin panel : Account:admin   Password:123abc Phone number:+447873398220 Demo App ( I need Like This ) 1) 2) payment milestone:- Admin Panel UI - 10% App UI - 10% Create API - 20% Create Database - 10% Admin panel Using Node JS - 30% Make Flutter App functional And Connect Admin panel And API - 10% All Testing Done And Ready to production - 10% Satisfaction:- 1. Admin Panel UI - Make According Demo And Submit Freelancer 2. App UI - Make According Demo And Submit Freelancer 3. Create API - All Api Perfect Work Submit Freelencer 4. Cr...

    $1152 Average bid
    $1152 Avg Bida
    93 bida

    I am building a full-scale algorithmic trading platform and need an experienced developer to take it from concept to production. The core of the system will execute three distinct strategies—scalping, day trading, and swing trading—running side-by-side from a single codebase. The app must pull real-time market data and place live orders across all major asset classes, so please factor in direct integration with: • Stock market APIs • Cryptocurrency exchanges • Forex market feeds Key expectations • Low-latency data capture with WebSocket or equivalent streaming. • Strategy engine that can be toggled per asset, with configurable parameters and risk limits. • Unified order-routing layer capable of handling spot, margin, and conditiona...

    $172 Average bid
    $172 Avg Bida
    18 bida

    I’m ready to turn my idea into a fully-functional Android application and need a developer who can guide the process from concept to Google Play release. At this stage I have the core concept and a handful of rough sketches; what I need now is help refining the user flow, designing an intuitive interface, building the backend logic, and packaging everything into a clean, well-tested APK. You’ll be working exclusively for the Android platform, so familiarity with current SDK versions, Kotlin or Java, Android Studio, and the play-store submission process is essential. If you can also advise on best-practice architecture (MVVM, Clean Architecture, Jetpack components) and integrate common services such as Firebase or in-app billing, that’s a plus. Please let me know: ...

    $11 / hr Average bid
    $11 / hr Avg Bida
    15 bida

    We need a mobile app similar to OLX (not exactly the same). Features required: User registration with Aadhar verification One-time platform fee for posting ads Categories & subcategories with listing system In-app chat and call feature Admin panel & secure payment integration Please share your tech stack, timeline, budget, and similar work experience.

    $435 Average bid
    $435 Avg Bida
    74 bida

    Our mobile app is already live on a staging domain, built with React Native, Node.js (Express) and MongoDB. I now need a full-stack developer who can dedicate the next seven days to finish three key items and move everything to our official domain. 1) Community auto-membership Every new registrant should be placed into the correct in-app community automatically when their professional email domain matches one that we map in the database. No manual steps—just detect, assign and save. 2) OTP email verification Before the first login the user must confirm ownership of that professional address. Generate a one-time six-digit code, send it via email, and allow a single attempt window with proper resend limits and expiry logic. 3) Production deployment The existing backend and adm...

    $115 Average bid
    $115 Avg Bida
    56 bida

    I have a fully-functional ERP written in core PHP with a MySQL backend. The next milestone is an Inventory Management module dedicated exclusively to stock tracking. No supplier or order features are needed at this stage. What I need built • Database changes to record products, stock movements (in, out, adjustments) and current on-hand quantities. • Clean, responsive PHP screens that blend with the existing UI for item setup, stock transactions and a real-time stock level dashboard. • Basic search, filter and export to CSV so staff can pull quick counts. • Low-stock thresholds with email alerts (SMTP already configured in the system). • Clear install/merge instructions and brief user documentation. Acceptance The module must install without breaking e...

    $114 Average bid
    $114 Avg Bida
    46 bida

    We are looking for an experienced AI/Backend Engineer (or small team) to help design and implement a foundational setup for an enterprise “Agentic AI” goal is to enable a prompt-based interface where business users can ask questions and trigger actions across internal risk management and document systems through a governed API layer. This is NOT a chatbot UI project focuses on backend architecture, AI orchestration, and secure enterprise integration. Target application includes IBM OpenPages SaaS (GRC) accessed via REST APIs. The first phase will implement a proof-of-concept that allows an AI agent to retrieve and update structured records using approved APIs via a secure middleware service. Scope of Work (Phase-1: Foundational Setup) Build a secure middleware API servic...

    $90 Average bid
    $90 Avg Bida
    24 bida

    The developer should build a cross-platform AI-powered IT Help Desk agent and management system that supports Windows, Linux, and macOS. The system must include a backend API (preferably in Python FastAPI or Node.js) to handle ticket management, device registration, and command distribution, along with a secure database (PostgreSQL) and an optional vector database for AI knowledge retrieval. The agent itself should be written in a compiled language like Go for cross-platform deployment, capable of registering devices, reporting system info and heartbeat, detecting missing patches, restarting services, and executing safe commands remotely. The AI component should analyze incoming IT tickets, automatically suggest fixes, and optionally execute auto-remediation commands when safe. All communi...

    $603 Average bid
    $603 Avg Bida
    141 bida

    • Description We have a small Python script which needs to be put on the server-side as an API. Excluding the GUI code and comments, the script has about 750 lines. You will be given a VPS, which the API will allow downstream applications to call the engine for data comparison. We need multiple real-time endpoints for downstream applications. For testing purposes, we will set the maximum to 3 for now. Ultimately, it can be scaled to an unlimited number of real-time comparisons. I suppose we will have multiple copies of the comparison code on the same/different servers, but with three REST API endpoints. Hence, the Python script will be split into server and client-side code. As there are multiple data points to be compared with, we are thinking that the web app will first initiate...

    $196 Average bid
    $196 Avg Bida
    123 bida

    I need a series of scenarios that connect ShipHero’s API with several online storefronts. The focus is on three core workflows: • Order processing – every new or updated order placed in the storefront must appear in ShipHero in near real-time. • Inventory management – stock level changes inside ShipHero should automatically update the corresponding product in each store. • Shipping updates – when ShipHero produces a label or tracking event, that information has to flow back to the customer’s order in the store. I already have the official ShipHero API documentation and can give you the credentials right away. Each storefront (think Shopify, WooCommerce, Magento, and others we decide on) will need its own well-named, modular scenario so I ...

    $148 Average bid
    $148 Avg Bida
    128 bida

    Project Overview We are looking for a developer to build and integrate a professional AI chatbot for our platform, Proxima Study. The goal is to allow students to ask questions on the front-end and receive answers generated by leading AI models (ChatGPT and Gemini) through a secure back-end bridge. Scope of Work Chat Interface (Front-end): A clean, user-friendly chat bubble/window on our website where students can type questions. It must support "streaming" (where text appears word-by-word) so users aren't waiting on a loading screen. The Bridge (Back-end): Develop a secure middleman (API) that takes the student’s question, sends it to OpenAI or Google Gemini, and brings the answer back to the website. AI Logic: Set up the system so I can easily toggle which AI mode...

    $131 Average bid
    $131 Avg Bida
    158 bida

    Automated Real Estate Systems Development Overview Ongoing work I am a part-time realtor focusing on investment properties, and I want to streamline my workflow with an automated system. This system will help investors by publishing daily cash-flowing deals on my Facebook and WhatsApp groups, aiming to facilitate engagement and lead generation. Read more Scope of work - Automated data sourcing from MLS or other property data sources. - Develop a cash flow analysis and ROI calculation system. - Filter properties meeting positive cash flow criteria. - Automatically format and publish daily posts to Facebook and WhatsApp groups. - Integrate a CRM system to capture inbound leads. - Provide documentation for system management. Read more References - Provide similar projects you have completed....

    $119 Average bid
    $119 Avg Bida
    77 bida

    This project will create an end-to-end, AI-powered email delivery system for a U.S. client. All work must be carried out on-site or remotely from New York State; residency is a strict requirement because of data-handling policies. Scope of work The core task is to design, train, and deploy a regression-based machine-learning model that predicts optimal email-send parameters from rich transactional data. I will supply secure access to the historical transaction logs; you will architect the data pipeline, engineer the relevant features, and iterate on model performance until it is production-ready. Once validated, the model should be wrapped in an API and integrated into our existing email infrastructure so it can trigger personalized sends automatically. Key responsibilities • Da...

    $33 / hr Average bid
    $33 / hr Avg Bida
    151 bida

    I am looking for a tutor who can help me understand, in a comprehensive and step-by-step manner, how to deploy a production-ready dashboard that displays the results of a model. My current stack includes: Google Cloud Platform (GCP) Vertex AI Workbench (where I trained the model) Streamlit (for the dashboard) Git and GitHub (for version control) I already have: A trained model in Workbench The .py files developed A structured and synchronized GitHub repository The intention to deploy everything in GCP However, I am not only looking for help with deployment — I want to fully understand the technical process behind it, including: How to properly structure the project for production. How to connect the trained model to the dashboard. The best architecture choice in GCP for...

    $22 / hr Average bid
    $22 / hr Avg Bida
    44 bida

    My current workflow already relies on , but I’m hitting limits with its out-of-the-box functionality. The project centers on true custom feature development—expanding so it fits my exact use-case rather than forcing my process to adapt to the platform. The work starts with a quick review of the existing setup, followed by a short requirements session where we pin down what the new feature must do, how it should be accessed, and any guardrails around performance or security. From there, the task moves into design, coding, and rigorous testing inside a staging environment to be sure everything runs smoothly once promoted to production. Deliverables • Complete source code and configuration for the new feature • Clear deployment notes and end-user documentation ...

    $19 / hr Average bid
    $19 / hr Avg Bida
    84 bida

    I’m looking for a developer who can build an AI-driven agent that lives inside PowerPoint and automatically generates complete slides for me. The agent’s core task is to take user-provided input—whether that’s a written outline, speaker notes, or raw data—and turn it into fully formatted slides that include both the text blocks and the appropriate visuals (images, icons, charts, or infographics) without any extra manual work on my end. Here’s what I expect: • A seamless workflow inside PowerPoint (add-in, script, or VBA macro—whichever delivers the best user experience) • Dynamic generation of slide titles, body text, and visual assets based solely on the content the user supplies • Smart layout decisions so the finished deck ...

    $7 Average bid
    $7 Avg Bida
    12 bida

    I’m creating a Swift-based Sudoku app whose primary mission is to teach people how to crack puzzles rather than simply letting them play. I already have the general UI vision; what I need now is a developer who can write the underlying Sudoku engine and weave in an engaging learning layer. Core objectives • Generate valid Sudoku boards on demand, analyse the current grid in real time and expose every classic solving technique (singles, pairs, X-Wing, etc.) through a clean API. • Provide instructional modes—contextual hints & tips —triggered by the user’s choice or by their mistakes. • Cover the whole spectrum of difficulty: beginner, easy, intermediate, tough and devious. Internally I’d like five granular levels, so please make the lo...

    $561 Average bid
    $561 Avg Bida
    157 bida

    Sto cercando uno sviluppatore che mi aiuti a trasformare i wireframe di OSSY in un MVP funzionante, pronto per essere testato sul mercato Obiettivo OSSY è una web app / mobile app che mette in contatto famiglie e lavoratori domestici (OSS, badanti, colf) senza occuparsi di contratti o assunzioni. Mi occorrono le funzioni essenziali per lanciare il servizio e validarne l’interesse. Funzionalità chiave • Registrazione utenti tramite SMS, con verifica in due passaggi. • Creazione profilo lavoratore con: esperienza lavorativa, certificazioni, disponibilità e categoria (OSS, colf h24, badante). Possibilità di mostrare il badge “OSS certificata”. • Upload foto e scelta della categoria durante l’onboarding. • Per ...

    $2379 Average bid
    $2379 Avg Bida
    124 bida

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