How user testing can make your product great
Get your product into the hands of test users and you'll walk away with valuable insights that could make the difference between success and failure.
Security is a term used to describe the measures taken to protect data and systems from external threats. Security Engineers are professionals who have the expertise and skills to develop, secure and maintain systems and applications. They are essential for any business or organization that wants to protect their sensitive online information from any malicious attack or unauthorized access. Security Engineers are familiar with network architecture, firewall technology, cryptography, risk assessment and compliance procedures.
Here's some projects that our expert Security Engineers made real:
At Freelancer.com, you can find experienced Security Engineers who can help you protect your data, assess risks, and create secure systems. We have a wide range of experts who can meet your needs for security, governance and risk projects. Our Security Engineers have the knowledge, skills and experience that you need have a successful project. If you're looking for professionals who can deliver reliable security solutions, post your project on Freelancer.com today and hire a qualified Security Engineer!
Daripada 21,115 ulasan, klien menilai Security Engineers 4.9 daripada 5 bintang.Security is a term used to describe the measures taken to protect data and systems from external threats. Security Engineers are professionals who have the expertise and skills to develop, secure and maintain systems and applications. They are essential for any business or organization that wants to protect their sensitive online information from any malicious attack or unauthorized access. Security Engineers are familiar with network architecture, firewall technology, cryptography, risk assessment and compliance procedures.
Here's some projects that our expert Security Engineers made real:
At Freelancer.com, you can find experienced Security Engineers who can help you protect your data, assess risks, and create secure systems. We have a wide range of experts who can meet your needs for security, governance and risk projects. Our Security Engineers have the knowledge, skills and experience that you need have a successful project. If you're looking for professionals who can deliver reliable security solutions, post your project on Freelancer.com today and hire a qualified Security Engineer!
Daripada 21,115 ulasan, klien menilai Security Engineers 4.9 daripada 5 bintang.Project Title Build a 3D-Based Fintech Loan Application (Android + Web Admin Panel) Project Overview: We are building a next-generation digital lending platform similar to MoneyView and CreditBee, but with a completely different user experience. Unlike traditional flat UI fintech apps, this application will be designed with: Immersive 3D UI elements Animated onboarding flow Gamified credit journey Interactive dashboard Modern fintech visual storytelling The goal is to create India’s first visually immersive 3D loan experience app. We are looking to hire: UI/UX Designer (3D + Fintech Experience Preferred) Full-Stack Developer (Mobile + Backend) Or a team who can handle both Core Objective Build a secure, scalable loan application platform where users can: Register & comple...
I want to open a brand-new account and get it ready for live use, but I’d prefer someone on the ground in Bangladesh to guide me step-by-step. The immediate task is straightforward: create the account in my name and make sure it is fully operational. Because I already trade on Binance, we can speak the same crypto language—USDT transfers, basic blockchain concepts, and exchange workflows won’t need explaining. Here’s what I expect from you: • Walk me through the sign-up flow in real time (video call or screen-share is fine). • Complete KYC and regional verification smoothly, using best practices you’ve tested yourself. • Enable all basic security layers—email/SMS confirmation and, if time allows, Google Authenticator 2FA—so...
Over the past few days I have found unfamiliar files—random .php, .ico, even oddly-named folders—sprinkled throughout every directory on my dedicated server. WordPress sites that once loaded instantly now throw 404 errors, run painfully slow, and the logs keep flagging unauthorized access attempts. Even after I delete a file, a near-identical copy sometimes reappears, so I know the issue is alive across all server directories, not just a single website. What I need right now is a complete file-level sweep and cleanup. The job is to locate every malicious or suspicious item, quarantine or erase it without touching legitimate code, and then get my WordPress installations back to normal. Once the filesystem is clean, I also want a concise report explaining what was found, what wa...
Job Title: Expert Developer Needed to Setup, Customize and Localize eBroker Source Code ​Job Description: ​Overview: I have recently acquired the full source code for an eBroker (American-based trading platform). I am looking for a highly skilled Full-Stack Developer or a Fintech Expert who can help me set up, audit, and customize this code for my specific requirements. ​Key Responsibilities: ​Environment Setup: Install and configure the source code on a local environment and eventually on a secure cloud server (AWS/Google Cloud). ​Code Audit & Security: Review the existing code for any backdoors, hardcoded API keys, or security vulnerabilities. ​Localization: Since the code is based on the US market, I need help adapting it (Currency conversion, Time zones, and UI/UX changes). ​API In...
I run a WordPress site that relies on Wordfence for protection, and I want peace of mind that everything in the security layer is set up exactly as it should be. The focus of this engagement is a thorough quality check of all active plugins—with special attention to Wordfence configurations and any security-related interactions they may have with the rest of the stack. Here’s what I need from you: • A hands-on audit of Wordfence settings, firewall rules, malware scan schedules, and login security options, confirming each item follows current best practice and does not conflict with core WordPress functions or other plugins. • A scan of every installed plugin for known vulnerabilities, abandoned code, or permission issues that could open an attack vector. &bul...
Hi, I want to build a website similar to Winnipeg SPKR where users can submit posts through the site and the content gets posted automatically on my Instagram Business account using Meta API. Here’s what I need: • User submission form (image, caption, optional video) • Automatic posting to Instagram via Meta API • Option for promotional posts with $1–$2 payment through Stripe • Payment confirmation before publishing promotional posts • Admin dashboard to view, approve, edit, or reject submissions • Option for manual approval or instant posting • Track free vs paid posts • Payment history inside admin panel Content control and safety features: • Automatic harmful text filtering • Abuse and hate speech detection • Spam dete...
Strong Microsoft SQL Server DBA background (8+ years) but last ~5 years on build/installation. Goal: intensive, hands‑on refresh of day‑to‑day DBA tasks, plus Azure SQL and migrations from SQL Server to Azure SQL. Schedule: 1 hour per day, Monday to Friday, 7–8 pm CST, starting March 9. Duration: ~7 weeks total (about 4 weeks SQL Server, 3 weeks Azure SQL/migration), adjustable based on progress. Emphasize that you want practical labs, troubleshooting, and real‑world scenarios. Explicitly state: “No blockchain, crypto, Web3 or related topics involved.
Project Title: Looking for Technical Co-Founder / Developer to Build 100% Cashback Platform (Equity Option Available) Project Description: I am looking for an experienced full-stack developer (or development team) to build a complete software system and website for my brand. My business model is based on providing 100% cashback to customers and investors under structured rules and timelines. The platform will include user accounts, wallet systems, transaction management, and an admin control panel. I am open to offering equity/share in the company to the right developer who believes in the vision and wants to grow long-term as a technical partner. Scope of Work: Design and develop a professional, modern website Develop full backend software system User registration & login syst...
Il progetto prevede la realizzazione di una web-app che faciliti la gestione della comunicazione fra Agenzia, Seller e Buyer nel settore immobiliare. Funzionalità chiave 1-informazioni "scheda immobile" 2-visualizzare report relativi agli immobili d'interesse 3-Messaggistica interna sicura per scambi immediati tra tutte le parti 4- Report di attività degli utenti, utili a monitorare conversazioni, visualizzazioni e step negoziali Obiettivi tecnici L’app dovrà essere rispettare gli standard di sicurezza tipici del real estate (GDPR, autenticazione a due fattori). Consegne attese per ogni milestone verranno stabilite insieme e includeranno codice sorgente versionato, documentazione essenziale e deploy su ambiente di staging. Al termin...
Je souhaite lancer rapidement un MVP sous WordPress pour une plateforme de simulation de concours composée de questions à choix multiples. L’interface devra être mobile-first, responsive et surtout colorée et ludique pour motiver les candidats. Fonctionnalités incontournables : • Création et gestion des questions QCM (import, catégories, minuterie). • Suivi des performances des utilisateurs avec statistiques et tableaux de bord. • Mode révision offrant des explications détaillées après chaque question. Gestion des accès : je commence simple ; seul un rôle Administrateur est nécessaire pour piloter la base de questions, consulter les scores et ajuster les régla...
Project Description: We are looking for an experienced developer or team to work on a real-time trading platform. Important: Only apply if you have previously developed a live, working trading project. Proof of authenticity is required. Requirements: in developing real-time trading systems with live market data APIs or low-latency data streaming experience execution system implementation authentication and user management backend architecture (scalable & high performance) with broker API integration security implementation Mandatory: 1. Share a live link where you are working 2. Provide proof of work (GitHub, portfolio, or client reference) 3. Explain your exact role in the project Preferred Skills: 1. Experience with stock/crypto/forex trading platforms 2. Knowledge of r...
Job Title: Flutter Developer (Full-Stack) for Muslim Matrimony App & Admin Panel Project Overview We are looking for an experienced Flutter Developer to build a premium Matrimony App for the Muslim community. The project includes a Cross-Platform Mobile App (iOS & Android) and a Comprehensive Web-Based Admin Panel. The app must prioritize user privacy, modesty, and identity verification. Key Responsibilities 1. Mobile App Development (Flutter) Sharia-Compliant User Journey: Implement profile setup focusing on religious values (Sect, Prayer frequency, Hijab/Beard, Family values). Privacy Features: Build a "Request Photo Access" module where photos are blurred by default until the user grants permission. Security: Implement screenshot protection for profile photos and secur...
I’m putting together a reusable boiler-plate based on Bun, Elysia, HTMX and Better-Auth. The goal is a pattern I can lift into a variety of future projects whenever I need tight authentication, fine-grained authorization and a back-office where admins can manually register users and set/configure authorization policy. Here is where I need you: • Architectural kick-off – I want rock-solid design patterns and best practices from day one, with security woven through every layer and a flexible auth system that can evolve as requirements shift. • Front-end / back-end integration – Help me keep the wiring clean so new modules or UI components can be dropped in without a full rewrite. • Ongoing pair-programming / troubleshooting – When my junior develo...
I already have a fully developed Node.js application and now need it live on my company website. The site's sole purpose is clear, reliable information display—no e-commerce or complex customer-interaction modules at this stage. Here’s what I’m looking for: • Prepare the hosting environment, deploy the Node.js code, and wire it to the production domain. • Configure SSL so everything runs over HTTPS. • Set up environment variables, build steps, and a process manager such as PM2 (or a comparable tool) to keep the service running automatically after restarts. • Connect any database or external services the project already references. • Optimize basic performance and security settings (rate limits, headers, logging). • Deliver a s...
I have already completed the technical investigation of a recent security alert: the endpoint protection platform flagged an executable that tried to tamper with system files and phone home to an external server. I verified the hash, monitored live-system behaviour, confirmed the activity as malicious, quarantined the file and rescanned the host to ensure it is now clean. What I need next is a professionally written incident report that translates those raw findings into a clear narrative for both management and technical stakeholders. The document should outline the timeline of events, the investigation methodology, indicators of compromise, remediation actions taken, and practical recommendations to harden the environment against similar threats. Where helpful, map tactics to MITRE ATT&...
Design and operate a production-grade Google Cloud platform for a global SaaS solution with deep hands-on ownership of Kubernetes, CI/CD, service mesh, and auditability. Deploy and manage regional GKE clusters (e.g., primary in me-central1/Riyadh), implement secure multi-environment landing zones, and build reusable Infrastructure-as-Code with automated, auditable provisioning. Build CI/CD pipelines using Cloud Build and/or GitHub Actions to containerize and deliver Python backend and Angular frontend services, publish Docker images, and deploy via Helm charts with tenant-specific configuration. Implement advanced deployment strategies on GKE using Istio service mesh, including header-based canary releases and tenant-aware traffic routing (e.g., X-Tenant-ID). Enable global scalability, mul...
I’m looking for a qualified security professional to run a full-scale penetration test against my public-facing web application. The goal is to simulate real-world attack scenarios, uncover exploitable weaknesses, and receive a clear, actionable roadmap for tightening our defenses. Scope – Web application layer only (no network infrastructure or API testing at this stage). – Black-box or gray-box methodology is fine; we can agree on the exact approach once you review the stack and access level I can provide. What I expect from you • A concise test plan outlining the tools and techniques you’ll use (e.g., Burp Suite, OWASP Zap, manual code review where appropriate). • Execution of the penetration test without disrupting production traffic. &bull...
I have a GPU instance with RTX 4090 and need to configure a setup for create videos
Our coaching sessions at Waziram and Vism Institute are streamed in the official mobile app on both iOS and Android. These recordings are crucial for my coursework, yet the current build offers no way to save them for later study when an internet connection is unavailable. I need an experienced mobile developer who can add a secure offline-viewing feature. The downloads must remain tied to each student’s login so that only authenticated users can view the files; once a user signs out, access to the stored videos should be revoked automatically. Because I am not sure what level of server or code access the institute can grant, the solution may involve: • Modifying the existing iOS (Swift/Objective-C) and Android (Kotlin/Java) apps to incorporate encrypted, device-bound st...
Position: Freelance Smart Contract / Blockchain Engineer Type: Contract / Freelance Location: 100% Remote Workload: Part-time or task-based Compensation: $60–$100/hour (or fixed-price per task) About the Project We are working on DeFi smart contract components, including token implementations and protocol-level logic. Our focus is security, clarity, and real-world usability — not hype. We are building a long-term freelancer pool and looking for engineers who can deliver clean, well-structured Solidity code independently. What You’ll Do Design and implement secure smart contracts using Solidity Work with EVM-compatible chains Review and improve existing smart contract code Follow best practices for documentation, testing, and security Collaborate asynchronously wi...
I’m ready to bring in a security specialist to run a thorough, manual penetration test on my live e-commerce application. Automated scanners aren’t enough for this engagement—I need human-driven testing that uncovers real-world attack paths. Here’s what I’m looking for: • A full manual assessment covering all SQL Injection, Cross-site Scripting (XSS) and Cross-site Request Forgery (CSRF),Web Application Penetration Testing , Network Penetration Testing Services External or Internal, Web Services Testing, API Testing • Exploitation-level proof of concept for every confirmed issue, with clear, reproducible steps. • A concise risk-ranked report that separates critical, high, medium and low findings, followed by practical remediation advice writ...
I’m looking for an online tutor based in India who can guide me through intermediate-level administration of both Linux and Windows Server environments. On the Linux side I want practical, session-based coaching in system administration, security and firewall management, and shell scripting. For Windows Server, the focus should be Active Directory management, server configuration and deployment, plus security and patch management. Each topic needs to be demonstrated live, with time for me to replicate the steps on my own lab machines during or immediately after the call. We can meet on Zoom or Google Meet for 2–3 hours a week, preferably evenings or weekends. Deliverables • A structured lesson plan that maps out the sequence of sessions • Recordings or sess...
I have a Lenovo ThinkPad T480 waiting for a fresh, security-first Debian installation. The goal is a fully hardened, privacy-respecting daily-driver that ships with BOTH Mozilla Firefox and Brave, each pre-tuned for strong tracking-protection and fingerprint-resistance. This is an ADVANCED hardening job. Beyond the base install I’ll need full-disk LUKS2 encryption, secure boot/Libreboot if the hardware permits, locked-down BIOS settings, kernel and sysctl tweaks, AppArmor (or comparable MAC), DNS proxy with encrypted queries, and a firewall configured to best practice levels. I did not select a specific firewall in the form, so feel free to recommend whether UFW, iptables or firewalld is the right fit for an always-on laptop that roams between trusted and untrusted networks. Delive...
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 ...
We would like to find someone who is capable of making a ticket buying bot, to PREVENT tickets from being bought from. This is a protection and defensive upwork post. We are looking to block vulnerabilities in the website. Thank you, J
Tenho hoje o ChatPion funcionando, porém preciso levá-lo a outro nível. Estou aberto a duas vias: aprimorar diretamente o ChatPion ou, caso seja tecnicamente mais simples, desenvolver um novo chatbot do zero para minhas páginas do Facebook. O que é indispensável • Envio de mensagens em massa sem limites artificiais, inclusive para várias páginas simultâneas. • Integração com outras plataformas (APIs externas, CRM, e-commerce ou o que for necessário). • Respostas automáticas mais inteligentes, capazes de entender variações de texto e entregar conteúdo personalizado. Além disso, quero um painel central onde eu consiga disparar campanhas, alterar configu...
Position: Freelance Smart Contract / Blockchain Engineer Type: Contract / Freelance Location: 100% Remote Workload: Part-time or task-based Compensation: $60–$100/hour (or fixed-price per task) About the Project We are working on DeFi smart contract components, including token implementations and protocol-level logic. Our focus is security, clarity, and real-world usability — not hype. We are building a long-term freelancer pool and looking for engineers who can deliver clean, well-structured Solidity code independently. What You’ll Do Design and implement secure smart contracts using Solidity Work with EVM-compatible chains Review and improve existing smart contract code Follow best practices for documentation, testing, and security Collaborate asynchronously wi...
I want to launch a fully-featured, cloud-hosted lottery platform built on a hardened Node.js backend with a reliable database layer. New players will sign up with a classic email-and-password flow, then complete KYC before they can fund their wallet or join a draw. The exact KYC data points can be finalised together, but the process must be seamless and compliant. Core flow • A user tops up an internal wallet via PayPal (gaming category enabled), buys entries, and watches their balance update in real time. • On draw day a server-side, provably-fair randomiser selects winners; every draw, ticket purchase, and payout is written to an immutable audit log. • From my side I need an admin dashboard that shows live player stats, transaction history, and lets me trigger or sc...
I am launching a fully-independent blockchain network and need an experienced developer who can take the project from white-paper to mainnet. The chain will run on a Proof of Work consensus, operate inside a closed environment (no external chain bridges), and issue a fiat-collateralized stablecoin that functions much like USDT but lives natively on this new ledger. Beyond the core protocol, I will also require built-in wallet support and a smart-contract layer so third-party developers can deploy dApps once the network is live. Security is paramount; every component—from key management to consensus—must be hardened against common attack vectors and accompanied by clear documentation. Key deliverables • PoW node software and full network setup (testnet + mainnet) &bul...
Get your product into the hands of test users and you'll walk away with valuable insights that could make the difference between success and failure.
Learn how to hire and collaborate with a freelance Typeform Specialist to create impactful forms for your business.