Typescriptpekerjaan

I have a premium multi-vendor software marketplace MVP already built locally in ** 15 + TypeScript**. The full codebase is complete and includes: * buyer flow * seller dashboard * checkout foundation * Stripe placeholders * payout foundations * upload wizard * public seller storefronts * search + category filters * admin moderation dashboard * Prisma schema * responsive luxury UI The code is currently running locally and needs a **senior developer to productionize and deploy it live**. ## Your job This is NOT a build-from-scratch job. The marketplace architecture and major UI are already completed. Your responsibilities: 1. Review existing codebase 2. Push project to GitHub 3. Deploy live on Vercel 4. Connect my domain: **** 5. Set up production PostgreSQL

We are building a multi-seller marketplace as a Telegram Mini App. Full project details shared after NDA signing. TECH STACK — OUR PREFERENCE (OPEN TO DISCUSSION): 15 + TypeScript (Telegram WebApp SDK) Node.js + Express or Python FastAPI PostgreSQL + Redis Docker + Vercel or Hetzner deployment Custom payment API integration (local mobile payment + international payment) AI integration experience (OpenAI API or equivalent) for search, fraud detection, and support bot We are open to discussing the architecture and tech stack during the design phase. If you have a better approach for our use case, we want to hear it. ARCHITECTURE REQUIREMENT: The backend must be API-first and fully decoupled from the Telegram layer. The same API must support web and mobile clients in the fut...

I’m have built a green-field enterprise platform and need an experienced full-stack developer who lives and breathes TypeScript, React, NodeJS, and modern API design to validate the architecture, suggest practical improvements to take it to the next level of maturity. The core of the work is validating what is built, measure the maturity, come up with practical steps to scale it to SaaS scale for implementation on a cloud provider. If you’re comfortable taking ownership across the stack—from polished React UIs to secure, scalable APIs—let’s push this enterprise product forward together.

...growing user base. Technical Requirements We are looking for a seasoned developer with 7+ years of software development experience, demonstrating deep proficiency in our specific technology stack. You must be highly capable of navigating and managing the tools and platforms outlined below. Technology Domain Required Skills & Frameworks Mobile Application: Ionic Framework, Capacitor, AngularJS, TypeScript Web Application & Backend: PHP Language, Laravel Framework, Laravel Spark SaaS Framework, Ubuntu Server, MySQL Database programming Cloud Infrastructure: AWS environments (Amazon EC2, Amazon S3, Amazon SES) DevOps & Integrations: Continuous Integration/Deployment via Laravel Forge, BitBucket version control, Stripe Payment Gateway integration Who You Are We are l...

Senior Full-Stack Integrator / Technical Lead JOB TITLE: Senior Full-Stack Integrator / Technical Lead LOCATION: Remote EMPLOYMENT TYPE: Independent Contractor (3-month contract, with extension to 12 months) START DATE: ASAP (April 2026) ABOUT THE PROJECT We have built three high-fidelity, custom-built modules: Module A: React/TypeScript Frontend (15 screens, 40+ components, complete UI) Module B: Python-based Matching Engine (AI/ML - Levenshtein, credit scoring, fraud detection) Module C: Node.js API Gateway (database schemas, endpoints, security framework) These modules are currently SILOED - they exist independently and need to be integrated into a unified, secure, and scalable financial platform. YOUR MISSION: Serve as the "Lead Integrator" mapping these...

...Proyecto: Busco un desarrollador Senior con dominio fluido del español (imprescindible) para finalizar una calculadora de presupuestos ya avanzada en su desarrollo . La interfaz y la lógica de operaciones básicas están listas; el objetivo es integrar dos módulos críticos de gestión de datos en un plazo de 3 semanas, dividido en dos fases de entrega. Stack Tecnológico Requerido: Frontend: (TypeScript) . Backend: con PostgreSQL . Entorno: ES6 modules, Webpack, GitHub y manejo de servidores Linux . -------------------------------------------------------------------------------- Fase 1: Importador de Excel Avanzado (Hito 1 - Semanas 1-2) Funcionalidad: Implementar un importador con experiencia drag-and-drop para archivos Exce...

I am building a series of n8n workflows that must bring together databases, multiple external APIs, spreadsheets, and cutting-edge LLMs in one seamless automation layer. The goal is to handle data integration, end-to-end process automation, and sophisticated API connections without manual touch points. You’ll be extending n8n beyond its out-of-the-box nodes, so solid JavaScript/TypeScript skills and full-stack experience are essential. I’ll rely on you to create custom nodes where needed, orchestrate error handling and retries, document each step clearly, and containerise the final solution (Docker preferred) for straightforward deployment. Deliverables • Fully functional n8n workflows covering database, API, spreadsheet, and LLM integrations • Any custom...

... PixiJS, or similar). API Integration: Connect the game client to our REST/WebSocket API to fetch game states, user data, and post-action results. UI Development: Build the interactive HUD and menus that overlay the game world. Performance Tuning: Ensure the game runs smoothly at 60 FPS and handles asset loading efficiently to minimize wait times. Technical Requirements Strong JavaScript/TypeScript skills. Experience with HTML5 Game Engines (Phaser, Pixi, or for 2D). Advanced API Handling: Deep understanding of JSON, fetch/axios, and handling asynchronous data streams. State Management: Ability to keep the UI in perfect sync with the backend data. What We Provide Ready-to-use 2D animation files and character sets. Complete API documentation. Direct access to the admin ...

...pooled community inventory and reconcile it continuously. • Track every offer, update the user’s balance in real time and flag failed or stale trades for manual review in an admin panel. Admin / Back-office A lightweight dashboard is needed for live game monitoring, user bans, bot status and manual item adjustments. Tech & Delivery I’m comfortable with common stacks such as Node.js, TypeScript, React, MongoDB or PostgreSQL, but I’m open to alternatives if they keep latency low and the interface snappy. Please outline your chosen stack, timeline and any hosting requirements when you reply. Acceptance criteria 1. Site replicates Bloxybet’s UX/UI closely (no original copywriting required). 2. Unlimited simultaneous coin-flip rooms ...

...(PCF) control that combines rich data visualisation with direct data entry. The control should • render live charts, graphs, tables and dashboard-style summaries drawn from a bound view, FetchXML or a configurable dataset; • let users add or edit records through embedded forms and interactive elements; • support secure file uploads tied to the same record context. I’d like it written in TypeScript, following Microsoft’s PCF CLI conventions, and styled with Fluent UI so it stays responsive across browsers and devices. Performance matters: the visual layer should stay fluid even with several thousand rows, and background data calls must be handled asynchronously. Deliverables - Complete source code with comments and a README outlining build, depl...

...Deliverables 1. A PDF (or Markdown) report, 8–15 pages, that includes: – Executive summary (≤1 page) – Provider comparison matrix with reliability/error-handling columns highlighted – Recommended provider and rationale – Step-by-step ControlNet integration guide (code-level) – Supabase Edge blueprint with security call-outs 2. A separate appendix containing sample TypeScript snippets for: – Edge Function handler with error-first logic – React client hook for invoking the function and displaying progress Acceptance criteria • All code samples run against the latest Supabase JS SDK and React 18. • Provider tests documented with reproduced curl or fetch calls and actual respons...

... * report generation * Providing explainable compliance decisions * why a dataset is risky * what rules triggered it * Enabling lineage reconstruction * “which datasets trained this model?” * “what risks exist in this pipeline?” --- ## Architecture ### Frontend * (App Router) * TypeScript * Tailwind CSS * Dashboard-focused UX: * Compliance score * Dataset registry * Model mapping * Report viewer * Audit logs --- ### Backend * Node.js + Express (TypeScript) * PostgreSQL + Prisma * MinIO (S3-compatible) for report storage Responsibilities: * CRUD + validation * Risk engine * Audit logging * Report generation --- ### Provenance Layer (Core Concept) The system acts as a lightweight provenance ledger: * Every action p...

Ausschreibung: Backend-Integration SaaS-Plattform – Oracle & DocuWare (On-Prem) Wir sind ein deutsches Saa...Delta-Sync oder On-Demand-Pull – je nach Use-Case - Kein Write-Zugriff, keine Agents auf Kundenseite, minimaler Eingriff in bestehende Systeme Was du mitbringen solltest: - Erfahrung mit Oracle-Datenbankanbindungen (JDBC, ORDS, APEX) - Kenntnisse der DocuWare REST API (ContentServer API) - Erfahrung mit Enterprise-Integrationen und On-Prem-to-Cloud-Szenarien - Idealerweise Kenntnisse in Node.js / TypeScript - Deutsch fließend Bonus: -Erfahrung mit ETL-Tools (Airbyte, Fivetran) oder CDC (Debezium, GoldenGate) -Kenntnisse im Bereich Dokumentenverarbeitung / OCR Wir starten mit einem kurzen Beratungsgespräch (1–2 Stunden) zur Architektur-En...

...and downloadable in a standard format (mp4/webm). • Optimise media streams for low latency and solid audio/video sync even on moderate bandwidth. Tech expectations Most of the stack is still flexible, but you should be comfortable working with typical WebRTC tooling such as mediasoup, Janus, Jitsi, Kurento, simple-peer, or equivalent signalling layers, plus modern JavaScript/TypeScript on the front end. The back-end can run on Node.js, Go or Rust—choose what lets you reach stable recordings fastest. Acceptance criteria • Two-party and multi-party calls run for 30+ minutes with <300 ms end-to-end latency. • A complete recording is produced, automatically saved, and playable in any HTML5 player. • Clear, commented code and short setup d...

I’m reaching out to explore a potential collaboration on an exciting new Fintech app called Genie. We’re looking for someone who can own the end-to-end app journey — from prototype refinement to full-scale development and deployment. We’re looking for a developer experienced in the following stack: - Flutter (iOS & Android app development) - TypeScript (backend/API development) - Google Cloud Platform (GCP) - Vercel (deployment) - Supabase (database, auth, real-time) - Familiarity with AI-assisted tools like Cursor is a plus *Role Overview* Taking existing prototypes and evolving them into production-ready apps Building and managing both products in parallel Handling the full lifecycle: design → development → deployment → iteration *What...

Tengo casi lista mi calculadora de presupuestos desarrollada en JavaScript; las operaciones básicas funcionan y la interfaz ya está diseñada. Solo faltan dos piezas clave antes de poder lanzarla: • Integrar un importador CSV que permita al usuario subir su archi...Pull request limpio, comentado y sin romper los tests existentes. Aceptación: todas las pruebas en verde, el importador procesa un fichero de 5 000 filas en menos de 2 s y los informes se descargan sin errores en Chrome y Firefox, en formato pdf, word y excel. Multi reporte Si puedes empezar de inmediato, espero cerrar estas tareas en una semana. Tecnologías requeridas: · Typescript · (TypeScript) · · PostgreSQL · GitHub (control d...

...to support management decisions. Key Features ・ Interactive dashboard (4 main tabs: Overview / Daily Analysis / Alerts / Cost Structure) ・ Data integration from Google Sheets via GAS API ・ Charts and analytics using ・ AI-generated insights via API (Dify or similar) ・ Authentication system (Firebase) ・ Responsive design (desktop + mobile) Tech Stack ・ Frontend: React / + TypeScript ・ Backend: Vercel API Routes (serverless) ・ Data Source: Google Apps Script (GAS API) ・ Charts: ・ AI Integration: Dify API ・ Auth: Firebase Authentication ・ Hosting: Vercel Important Requirements ・ Strong experience with React / and API integration ・ Experience handling secure API communication (server-side routing, env variables) ・ Ability to implement data visualization

This quote covers Milestone 1 of HappyCortex, an AI-enabled healthcare application. The milestone delivers a fully functional Report Builder (Rapportbouwer) built on , TypeScript, Tailwind CSS, and Shadcn/UI. Scope and deliverables are defined in the Milestone 1 document shared and agreed between both parties prior to this proposal. Summary (83 hrs | 3–4 weeks | USD 25/hr): • Project setup & Vercel deployment (2 hrs) • Design system, theme & top navigation (3 hrs) • Dossier management + API integration (18 hrs) • Document management + API integration (16 hrs) • Report Architecture Panel + API integration (10 hrs) • Report Editor — WYSIWYG, citations, export + API integration (26 hrs) • Grounding Panel + API integration (8 hrs)...

...Motion What’s already done • Most of the app is already built • This project is about finishing and connecting the remaining pieces • We estimate it is about 80% complete What we need We want someone who can: • work quickly • understand API integrations • connect existing logic cleanly • test the full workflow end to end • fix edge cases and make it reliable Tech stack • Node.js / TypeScript • Supabase • HubSpot API • PandaDoc API • API • Motion API • Resend • Quo To apply Please send: • examples of similar API/integration work • which of these platforms you have worked with before • how quickly you could start DO NOT APPLY SAYING YOU CAN DO THIS IF YOU ...

...pooled community inventory and reconcile it continuously. • Track every offer, update the user’s balance in real time and flag failed or stale trades for manual review in an admin panel. Admin / Back-office A lightweight dashboard is needed for live game monitoring, user bans, bot status and manual item adjustments. Tech & Delivery I’m comfortable with common stacks such as Node.js, TypeScript, React, MongoDB or PostgreSQL, but I’m open to alternatives if they keep latency low and the interface snappy. Please outline your chosen stack, timeline and any hosting requirements when you reply. Acceptance criteria 1. Site replicates Bloxybet’s UX/UI closely (no original copywriting required). 2. Unlimited simultaneous coin-flip rooms ...

Formify is a No-Code Drag-&-Drop Form Builder Website Where Authenticated Users Can Visually Create Forms, Share Them Via a Public Link, and Collect & Manage Responses in a Real-Time Dashboard. Tech Stack: Frontend: React.js / With Tailwind CSS and TypeScript Backend: Node.js / Database: Supabase Authentication: SupabaseAuth Deployment Ready: Vercel Demo Link:

We maintain a SaaS product that relies heavily on Typescript, Firebase and Cloudinary to process and store user-generated videos. We need someone who knows the technology inside and out to jump in, fix the immediate bugs and issues, and stay available for incremental improvements as we grow. There are several bugs with the application we need to fix. If you have the experience this should be relatively easy for you. We are a team of 6 developers and we need to find someone we can outsource bugs to as well as add new cloudinary features such as adding an intro video stitched to the main video here is the logic. A user uploads a video (mp4) and saves it to his profile. He creates a custom video and can choose an option to add an intro and watermark. We have the video uploading worki...

We need a skilled React frontend developer to build the UI for a social casino game with Poker, Slots, and Roulette. Everything is landscape orientation, mobile-first web. What's already done: Figma designs for 5 core screens All game assets (backgrounds, characters, icons) Detailed spec document for 15 screens React project scaffold with routing Wha...scaffold with routing What you'll build: 10 core screens: Loading, Login, Lobby, Poker (room selection + table with gameplay), Slot machine (5-reel with spin animations), Roulette (betting grid + ball animation), Store, Profile drawer, Settings 5 additional screens: Daily bonus wheel, VIP page, Friends, Tournaments, overlays/modals Real-time multiplayer integration Stack (non-negotiable): React + TypeScript, Tailwind CSS,...

...experience with React (your strongest area), plus competent Laravel and Python. – Habitual use of ChatGPT, Claude, or similar assistants to speed up research, testing, and documentation. – Clear English, quick responses, and predictable availability. Nice extras PostgreSQL tuning, Docker, DevOps on VPS, prior LLM production work. When you apply, please: 1. Summarise your JavaScript/TypeScript background. 2. Explain exactly how you rely on AI tools in your workflow. 3. Tell me the soonest date you could start and how many hours a week you can commit. 4. Add links or repos that best showcase past work relevant to this stack. I’m aiming for 30+ hours per week but can flex to hourly milestones once we’re rolling. If you thrive in a fast iter...

...months—possibly years. You can make extra money on side. What is the tech - development stack and the work requirements to be hired for job project? I prefer freelancers who have used AzuraCast in the past. This means i will favor someone with past work experience in AzuraCast. Im open to you learning it without past experience. You must have experience with PHP-Slim on the back end, Vue.js and TypeScript on the front. You must also have worked in the past with Docker containers and Nginx and MariaDB. Is there deadlines for each feature? Each feature will have a deadline. Some one week and others longer. Most features wont take more than a month. My goal long term, is for you to be making features alot each month. Skills Required Linux Nginx MariaDB Redis Docker Web ...

...directly. • Package everything in Docker for straightforward CI/CD; the backend is already containerised, so the frontend should slot into the same stack with minimal fuss. • Deliver well-commented, production-ready code plus a brief README that explains local setup, environment variables, and how to trigger a demo workflow. Preferred stack: React (your choice of Vite, CRA, or ), TypeScript if you like. If you believe Vue or another modern framework would work better, let’s discuss—flexibility matters more than dogma. You’ll shine if you’ve dealt with telephony APIs, voice bots, or Twilio-style integrations, but strong API integration skills and an eye for UX are the real essentials. Once we connect I’ll share a functioning demo of o...

...Optimize performance across desktop and mobile WebGL environments Support integration of other internal software/products and other system components Collaborate on feature improvements, including large-scale structure modeling Contribute to architecture decisions across rendering, interaction, and domain logic Skills & Qualifications 5+ years of software engineering experience (JavaScript/TypeScript) 3+ years of hands-on experience in production environments Strong understanding of BufferGeometry InstancedMesh Raycasting Transforms, scene graphs, and camera systems Experience building interactive 3D applications in the browser Background in configurators, CAD-like tools, BIM, digital twins, or similar systems Strong debugging skills, especially with geometry edge ...

Project Title: Build Holiday Rental Platform (Airbnb-like) – T3 Stack (, tRPC, Directus) Project Description: We are looking for an experienced developer to help build a modern holiday property rental platform similar to Airbnb, using our predefined tech stack. Current Tech Stack: - T3 Stack (, TypeScript, Tailwind) - tRPC (end-to-end typesafe APIs) - Directus (Headless CMS) - SQLite (WAL Mode) – separate DBs for app & logs - Data Studio integration - Observability tooling - Deployment on Planned Future Stack: - PostgreSQL (scaling) - Redis (caching & AI features) - AI-powered features (recommendations, automation) Core Features Required: - User accounts (Hosts & Guests) - Property listings & management - Booking & availability calendar - Sec...

...wallet reset to zero so I can trigger payouts externally. • Statement generation itself must remain accurate after the reset, reflecting the cleared balance for women while leaving men’s data untouched. The existing logic mostly works, but the queries and calculations are starting to slow down as data grows. I want the TypeScript functions and any Supabase RPC or Edge Function you touch to be lean, deterministic, and well commented. Deliverables 1. Refactored TypeScript / React (.ts, .tsx) files with optimized queries and reduced latency. 2. Automated job or Edge Function that runs at the scheduled times, outputs the Excel exactly as described, uploads it to a designated bucket, then zeroes the balances. 3. Proof-of-concept test data plus short REA...

... • A single executable for Windows (macOS/Linux later is a plus) that spins up its own RPC connections or lets the user paste custom endpoints. • Clean, beginner-oriented interface—simple toggles and sliders to set gas limits, slippage, and profit targets, backed by sensible defaults so first-time users don’t feel overwhelmed. • Strategy engine written for speed and reliability (Node.js+TypeScript, Rust, or Go are all fine—open to your recommendation). • Modular chain adapters so we can add further networks without rewriting core logic. Deliverables 1. Fully functional desktop app (installer + source). 2. Documented codebase with clear instructions for adding new chains or strategies. 3. Quick-start guide and short video demo ...

I’m building an online platform focused exclusively on live, in-play wagering. The site has to display changing odds in... 5. Installation guide with prerequisites and step-by-step commands Acceptance criteria – Odds refresh no slower than one update per second on a 10 Mbps connection – Bet slip persists and confirms under 500 ms round-trip – All high-risk actions logged with timestamp, IP, and user ID – Unit and integration tests covering at least 80 % of critical paths Preferred tech stacks are Node/TypeScript + React or PHP/Laravel, but I’m flexible if you justify an alternative that meets the performance targets. Let me know which external odds feeds and payment providers you’d like to implement, a rough timeline, and any previ...

...inject the stored values into the matching form inputs, and leave all other fields untouched so I can review or edit them manually before submission. A simple options page where I can enter or update these six values is required, protected by Chrome’s built-in encryption for synced storage. Deliverables 1. Signed, production-ready Chrome Web Extension (*.crx + source) written in JavaScript/TypeScript with Manifest V3. 2. Clear setup instructions for local testing and publishing to the Chrome Web Store. 3. Inline code comments and a short README explaining how each target field is selected (query selectors or form IDs) so future maintenance is straightforward. Acceptance Criteria • When I open the visa form, the specified fields are populated instantly and a...

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Project Title: Full-Stack Food Ordering Platform ( + Node.js + TypeScript) Project Description: I developed a modern, responsive food ordering web application using for the frontend and a scalable backend architecture (Node.js + TypeScript). Live Demo: Key Features: * Modern UI built with (fast, SEO-friendly, responsive) * Dynamic food and restaurant listings * Shopping cart functionality * Clean and user-friendly design * Optimized performance and routing Backend Capabilities (can be included or customized): * REST API built with Node.js / Express or NestJS * User authentication (JWT-based login/signup) * Order management system * Database integration (MongoDB or PostgreSQL)

I plan to commission a fully-automated trading bot that operates on Polymarket’s Polygon CLOB using the official SDKs and APIs. The codebase must be TypeScript running on Node.js, with ethers v5 handling all on-chain interactions and Axios servicing any REST calls that fall outside the SDK. Functionally, the bot should open and close BUY or SELL orders in real time, pulling order-book data through WebSockets while backing off to the Data API whenever needed. Beyond the core copy-trading logic, I also want it capable of arbitrage trading, market-making, and basic trend-following; each strategy can be toggled on or off and share a common risk layer. That risk layer must enforce tight slippage limits, a maximum loss per trade, and a rolling daily loss limit before trading pauses...

I’m ready to launch a modern, secure and lightning-fast website for my small educational center and I’d like it built as follows. The entire site must be fully responsive on desktop, tablet and mobile, follow a professional-and-corporate look, load quickly, and pass cross-browser checks. Frontend: 14 (App Router) + React 18 + TypeScript Styling: TailwindCSS + Shadcn/UI Backend: Node.js + + TypeScript Database: PostgreSQL + Prisma ORM Search Engine: Elasticsearch / OpenSearch Cache / Sessions: Redis Queue System: BullMQ (Redis-based) — for imports, image processing, notifications Image Storage: AWS S3 / Cloudflare R2 (S3-compatible) CDN: Cloudflare Authentication: JWT + NextAuth Payments: Stripe Integration Deployment: Docker + Docker Compose Scope of wor...

...on-chain. Everything will run on the Theta blockchain, so familiarity with Theta SDK, solidity-style smart contracts, and its RPC infrastructure is essential. Authentication will be wallet-based (e.g., WalletConnect or a custom Theta wallet integration) so users can sign transactions directly without traditional log-ins. Here is what I expect to see completed: • Responsive front-end (React/TypeScript preferred) that streams live market data and presents intuitive trade controls. • Smart contracts on Theta handling order execution, strategy logic, and portfolio tracking. • A lightweight Node/Go back-end that aggregates data feeds, triggers the algorithms, and logs trade history. • Secure wallet integration, unit tests, and an admin dashboard for parame...

The platform will replicate the thrill of sites such as or , but with our own branding ...database schema). 2. UX/UI implementing the gaming theme with the case-opening animation. 3. Secure authentication with 2FA toggle. 4. Inventory, trade and sell modules wired to the balance system. 5. Admin dashboard and basic analytics. 6. Deployment instructions (Docker or similar) so I can reproduce the environment on my own server. I’m open on the exact tech stack—React, Vue, or plain TypeScript on the front; Node.js, Laravel, or similar on the back—so long as performance and security requirements are met. Please outline any third-party services or libraries you intend to use when you reply, along with an estimated timeline to reach a first playable version.

DESCRIP...feeds en vivo, detalles • Envío de interacción • Estado de entradas • Resultados (webhook) ⸻ ENTREGABLES • Plataforma funcional (staging) • Código en GitHub • DB + datos de prueba • Mock API • Documentación + . • Admin panel • Guía de deploy • 1 semana soporte post-entrega Estándares: • TypeScript (sin any) • Zod validation • Manejo de errores/loading • API consistente • Código limpio + README completo ⸻ PERFIL IDEAL Requerido: • + TypeScript (proyectos reales) • Paystack (obligatorio) • Fintech/e-commerce experience • UX mobile-first • PostgreSQL + Prisma • Integración APIs...

...bestehender Codebasis Pflege & Updates von Abhängigkeiten und Frameworks Implementierung kleiner Features & technischer Verbesserungen Aufbau & Erweiterung automatisierter Tests Enge Zusammenarbeit mit DevOps (CI/CD, Deployments, Monitoring) Dokumentation von Änderungen und Prozessen Tech-Stack Backend: Java, Spring Boot, Spring Security, Microservices Frontend: Angular, TypeScript, RxJS, State Management Testing: TDD, Jest, Playwright DevOps: Azure, Kubernetes, CI/CD Pipelines, ArgoCD Datenbanken & APIs: PostgreSQL, API-basierte Architekturen Dein Profil Fundierte Erfahrung im Java-/Angular-Umfeld Sicher im Umgang mit modernen Architekturen & DevOps Starker Fokus auf Code-Qualität, Testing &a...

...platform must support at least these roles: Super Admin Merchant Admin Staff / Operator (optional but recommended) End User / Customer Role permissions must be properly separated. --- Recommended Tech Expectations We are open to your best implementation choice, but the system should be built with a modern, scalable stack. Preferred direction: Frontend: React / Backend: Node.js + TypeScript Database: PostgreSQL ORM: Prisma or equivalent Caching / sessions / queue if needed: Redis API: REST or clean API-first architecture Deployment-ready structure: Docker / Docker Compose preferred The codebase should be clean, documented, modular, and easy to continue with another developer later. --- What Must Be Delivered We need a working web software build, not only d...

Overview I run an SMS platform built with: • Node.js / TypeScript • Supabase (Postgres) • Twilio (Programmable Messaging) We have an existing campaign sending system that is well-documented architecturally, but not working correctly in production. I need a developer to debug and stabilize the existing system, not rebuild it. ⸻ The Problem (Real Production Behavior) When sending a campaign to ~14,000 recipients: • ~2,500 messages successfully send • ~6,800 messages fail with internal system errors (not Twilio errors) • ~5,500 messages remain stuck in the queue for days This is consistent and reproducible. ⸻ Important Context (Architecture) Our system: • Uses a Postgres-backed queue (message_logs table) • Has multiple status st...

Title: Senior Full Stack Developer (TypeScript, React, Node) for Mercor Project Description: We are looking for a talented and experienced Senior Full Stack Developer to join our team for the Mercor project, a scalable platform in the logistics/3PL domain. You will be responsible for designing and developing high-quality, scalable applications, collaborating with cross-functional teams, and owning features end-to-end. Responsibilities: Develop backend services using Node.js and TypeScript Build responsive frontend interfaces with React Design and integrate RESTful APIs Ensure performance, scalability, and code quality Collaborate with stakeholders and engineers Requirements: Strong experience with TypeScript, Node.js, and React Experience building scalable web ap...

...may not offer advanced AI or full-stack development services. You bring the client. I handle the execution. We share the revenue. What I Bring AI Development (Core Strength) LLM-powered applications (ChatGPT-like systems) Retrieval-Augmented Generation (RAG) systems AI agents and workflow automation Custom AI tools tailored to business needs Full-Stack Engineering Frontend: React (TypeScript) Backend: FastAPI / Node.js Databases: PostgreSQL and vector databases Scalable, production-ready deployment Automation and SaaS Systems End-to-end workflow automation AI-powered internal tools Subscription-based platforms Notification and content delivery systems Multi-lingual Capability Bengali, Hindi, English, and Sanskrit-ready systems AI-powered content structur...

I’ve already built the core of my site with lovable a...the designated layout section. • Hook the component into the current routing so it appears exactly where the placeholder now sits. • Walk the full user journey end-to-end, fixing any TypeScript, state-handling, or API hiccups you spot along the way. • Confirm the final build works locally and in production, ready for me to push live. While the platform may eventually display other reports such as sales, user activity, or error logs, today’s job is solely about delivering the CV Audit report and making sure the entire flow is rock-solid. If you’re comfortable with lovable, Supabase, and TypeScript, this should be a straightforward integration. I’m ready to share the repo an...

I have an e-commerce project in active development and need an experienced backend engineer to build, develop, and maintain the server-side application using JavaScript, TypeScript, Node.js, and, above all, NestJS. PostgreSQL is the chosen database, so every module you create should interact with it efficiently and securely. Your first task is to establish a clean, scalable NestJS architecture, then extend it with the essential e-commerce features—authentication, product catalogue endpoints, shopping cart and order workflows, plus a role-based layer to separate admin, vendor, and customer access. Deliverables: • NestJS project scaffold wired to PostgreSQL • Auth module with JWT/refresh-token flow • CRUD endpoints for products and orders • Assist in ...

...de WhatsApp (Headless CRM) mediante arquitecturas reactivas. Tu Stack Tecnológico (Nivel Experto) Buscamos a alguien que domine con fluidez nuestro ecosistema actual: - Backend: Java 17+ y Spring Boot 3.5. Dominio de Spring WebFlux (para escalabilidad reactiva) y Spring Data JPA. - IA & Data: Experiencia real con LangChain4j, OpenAI API y bases de datos vectoriales. Frontend: Angular 20 (TypeScript) con enfoque en SSR (Server Side Rendering) y optimización de performance. - Infraestructura: Docker (builds multi-stage), AWS S3 y PostgreSQL. - Herramientas Pro: Tailwind CSS 4, Resilience4j y scripts auxiliares en Python. ¿Qué buscamos en ti? (Must-haves) - +7 años de experiencia en desarrollo de software, con al menos 2 años lid...

Our production site is already live on a React...Lighthouse or similar tooling. • API calls streamlined or batched so data feels instant without blocking the main thread. • Code refactored where necessary using modern React patterns; if spinning parts into pages makes sense, I’m open to that, too. You’ll be working inside an established codebase, so comfort reading legacy JSX, Redux hooks, and the occasional Express route is important. TypeScript knowledge is helpful but not required. Send over a link to at least one React project where you owned UI/UX improvements or performance tuning. A GitHub profile is perfect; a concise portfolio site works as well. If we click, there’s plenty more on the roadmap, so think of this as the first milestone in a ...

...Rail Enquiries in real time, retrieving trains between the chosen stations along with departure, arrival, platform and intermediate stop times. • Results appear on page and a “Save as PDF” button renders exactly what’s shown into a clean, paginated PDF—logo, timestamp and any notes included automatically. Technical expectations The stack is up to you as long as it is web-friendly (JavaScript/TypeScript with Node.js or Python-based back-end are both fine). The only must-haves are consumption of the National Rail Enquiries REST endpoints, graceful error handling when no trains are found, and a reliable PDF generator such as jsPDF, pdf-lib, Puppeteer, or an equivalent server-side tool. Deliverables 1. Fully functioning responsive web page(s) with the...

Project Details $1000 USD I’m ready to launch a modern, secure and lightning-fast website for my small educational center and I’d like it built as follows. The entire site must be fully responsive on desktop, tablet and mobile, follow a professional-and-corporate look, load quickly, and pass cross-browser checks. Frontend: 14 (App Router) + React 18 + TypeScript Styling: TailwindCSS + Shadcn/UI Backend: Node.js + + TypeScript Database: PostgreSQL + Prisma ORM Search Engine: Elasticsearch / OpenSearch Cache / Sessions: Redis Queue System: BullMQ (Redis-based) — for imports, image processing, notifications Image Storage: AWS S3 / Cloudflare R2 (S3-compatible) CDN: Cloudflare Authentication: JWT + NextAuth Payments: Stripe Integration Deployment: Docker + D...