Hire the Best API Developers
Jauharabad, Pakistan
You don't need someone to write code. You need dev and expert who understands your business problem and delivers a backend that doesn't need to be rebuilt in a year. 6+ years working in PHP and Laravel across SaaS platforms, e-commerce systems, and custom WordPress backends. I've shipped 450+ projects and I maintain open-source Laravel packages actively used by other developers... that's not a line on a resume, you can read the code on GitHub before you hire me. What I actually work on... ✓ Laravel SaaS backends... multi-tenant architecture, billing integrations (Stripe, PayPal), job queues, real-time features with Reverb or Pusher ✓ RESTful and headless API development... versioning, authentication (Sanctum, Passport, JWT), third-party integrations, and passive contract monitoring so integrations don't silently break ✓ WordPress... custom plugins, hook architecture, WooCommerce extensions, REST API bridges between WP and Laravel systems ✓ Performance and refactoring... I regularly take over legacy Laravel codebases, add test coverage, resolve N+1 issues, and modernize to current standards without breaking production ✓ E-commerce... order pipelines, multi-channel inventory (Shopify, WooCommerce, Amazon, Etsy), payment gateway integrations A few things I've shipped publicly.. Built a multi-channel notification engine for Laravel 12 with parallel dispatching and smart routing. A static analysis tool that catches dangerous migrations before they hit production. A passive API contract monitor that detects breaking changes in third-party REST APIs using probabilistic inference. These aren't portfolio pieces.. they're tools other developers use. On working with AI... Yes, I use AI tools in my workflow. The difference between a developer who uses AI well and one who doesn't is knowing what to verify, what to question, and what to never let near production without review. My open-source work exists partly because I kept running into problems that AI-generated boilerplate can't solve. Who I work well with.. Founders and technical leads who know what they want to build but need someone who can own the backend without constant hand-holding. If you have a spec, I'll ask the right questions and deliver clean, documented code. If you have a problem, I'll figure out the architecture. Available for fixed-price projects and ongoing contracts. Response time is fast.. usually within 10 minutes
- API Development
- API
- PHP
- Web Development
- WordPress
- Custom PHP
- Laravel
- Core PHP
- PHP Script
- Website Integration
- Website & CMS Bug Fix
- Website Optimization
- Ecommerce Website Development
- Website Customization
- API Framework
- API Documentation
- API Integration
- AI Development
- ChatGPT API Integration
- Next.js
Whitney, Texas
☑️ 𝟮𝟮+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗰𝘂𝘀𝘁𝗼𝗺 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 𝗽𝗹𝘂𝗴𝗶𝗻 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. ✅ 𝗧𝗼𝗽 𝟬.𝟭% 𝗨𝗽𝘄𝗼𝗿𝗸𝗲𝗿. 𝗘𝘅𝗽𝗲𝗿𝘁 𝗩𝗲𝘁𝘁𝗲𝗱. 𝗖𝗵𝗼𝗼𝘀𝗲 𝗺𝗲 𝘄𝗵𝗲𝗻 𝘆𝗼𝘂 𝘄𝗮𝗻𝘁 𝗶𝘁 𝗱𝗼𝗻𝗲 𝗿𝗶𝗴𝗵𝘁 𝘁𝗵𝗲 𝗳𝗶𝗿𝘀𝘁 𝘁𝗶𝗺𝗲 𝗼𝗿 𝗻𝗲𝗲𝗱 𝗶𝘁 𝗳𝗶𝘅𝗲𝗱 𝗽𝗿𝗼𝗽𝗲𝗿𝗹𝘆! 𝗛𝗶𝗴𝗵𝗹𝘆 𝘀𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗪𝗼𝗿𝗱𝗣𝗿𝗲𝘀𝘀 𝗽𝗹𝘂𝗴𝗶𝗻 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 𝗯𝘂𝗶𝗹𝘁 𝘄𝗶𝘁𝗵 𝗰𝗹𝗲𝗮𝗻 𝗰𝗼𝗱𝗲 𝘁𝗵𝗮𝘁 𝗺𝗼𝘀𝘁 𝗲𝗳𝗳𝗶𝗰𝗶𝗲𝗻𝘁𝗹𝘆 𝘀𝗼𝗹𝘃𝗲𝘀 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗯𝗹𝗲𝗺. 𝗜𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 or 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲. I’ll be happy to schedule a call to chat about your needs, outline a solution and give you a timeline and price to make it happen. ❝ 𝗜 𝗵𝗮𝗱 𝗮 𝗱𝗶𝗳𝗳𝗶𝗰𝘂𝗹𝘁 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝘁𝗵𝗮𝘁 𝗻𝗼 𝗼𝗻𝗲 𝗰𝗼𝘂𝗹𝗱 𝗳𝗶𝗴𝘂𝗿𝗲 𝗼𝘂𝘁—𝘂𝗻𝘁𝗶𝗹 𝗵𝗲 𝗱𝗶𝗱. 𝗡𝗼𝘁 𝗼𝗻𝗹𝘆 𝘁𝗵𝗮𝘁, 𝗯𝘂𝘁 𝗵𝗲 𝗮𝗹𝘀𝗼 𝗰𝗹𝗲𝗮𝗿𝗹𝘆 𝗰𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗲𝗱 𝗲𝘃𝗲𝗿𝘆 𝘀𝘁𝗲𝗽 𝗼𝗳 𝘁𝗵𝗲 𝘄𝗮𝘆. 𝗜 𝗵𝗮𝗱 𝗮 𝗽𝗵𝗼𝗻𝗲 𝗰𝗼𝗻𝘃𝗲𝗿𝘀𝗮𝘁𝗶𝗼𝗻 𝘄𝗶𝘁𝗵 𝗵𝗶𝗺 𝗮𝗻𝗱 𝗮𝗻𝗼𝘁𝗵𝗲𝗿 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿, 𝗮𝗻𝗱 𝘁𝗵𝗲 𝗼𝘁𝗵𝗲𝗿 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝘀𝗮𝗶𝗱, "𝙏𝙝𝙞𝙨 𝙜𝙪𝙮 𝙧𝙚𝙖𝙡𝙡𝙮 𝙠𝙣𝙤𝙬𝙨 𝙬𝙝𝙖𝙩 𝙝𝙚'𝙨 𝙙𝙤𝙞𝙣𝙜" 𝗜 𝗵𝗶𝗴𝗵𝗹𝘆 𝗿𝗲𝗰𝗼𝗺𝗺𝗲𝗻𝗱 𝗵𝗶𝗺, 𝗮𝗻𝗱 𝗵𝗲'𝘀 𝗻𝗼𝘄 𝗺𝘆 𝗴𝗼-𝘁𝗼 𝗳𝗼𝗿 𝗮𝗻𝘆 𝗱𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝘄𝗼𝗿𝗸. ❞ 🗣 𝗣𝗮𝘂𝗹 𝗠𝗮𝗿𝗸𝗼𝗳𝗳 - 𝗢𝘄𝗻𝗲𝗿, 𝗗𝗿. 𝗣𝗲𝗽𝗽𝗲𝗿 𝗦𝘁𝗮𝗿 𝗖𝗲𝗻𝘁𝗲𝗿𝘀 Highlights my clients appreciate about working together: ☑️ 𝗛𝗼𝗻𝗲𝘀𝘁𝘆 - I only quote exactly what’s needed and I track every hour using Upwork’s screen capture time tracker on every project ☑️ 𝗥𝗲𝗹𝗶𝗮𝗯𝗹𝗲 – I work 7 days a week, responding to messages within 30 minutes to 1 hour during work hours ☑️ 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 - API Integration & Automation Obsession – Real Estate - Payment Processing - SaaS ☑️ 𝗖𝗹𝗲𝗮𝗿 𝗖𝗼𝗺𝗺𝘂𝗻𝗶𝗰𝗮𝘁𝗶𝗼𝗻 & 𝗗𝗼𝗰𝘂𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻 – You’ll always know what’s happening with your project. You’ll have Loom videos explaining how everything works. ☑️ 𝗨𝗦 𝗠𝗮𝗿𝗸𝗲𝘁 𝗖𝗹𝗶𝗲𝗻𝘁 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻 - All my experience and solutions are based on American standards, best practices and expectations Hi, I’m Rick aka Patrick! For more than 22 years my expertise has focused on making third-party applications work flawlessly with WordPress through the use of custom built plugins and API integrations. I’m the creator of the “WordPress Plugin Dragon Framework” and follow Robert C. Martin’s Clean Code principles (SOLID, DRY, YAGNI) to ensure exceptional quality. 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 𝗢𝗳 𝗠𝘆 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 ✔ Custom WordPress API Integrations - API Development & API Automation - ✔ Real Estate IDX Plugin & MLS API Solutions - Housecall Pro ✔ Custom WordPress Plugin Development & WordPress Web Development ✔ Business Automation Solutions - Zapier - Zapier Workflows - Google Sheets ✔ WooCommerce API - E-commerce Solutions - SaaS Solutions - Data Synchronization - Stripe - PayPal 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 𝗢𝗳 𝗠𝘆 𝗢𝘁𝗵𝗲𝗿 𝗖𝗼𝗺𝗺𝗼𝗻𝗹𝘆 𝗨𝘀𝗲𝗱 𝗦𝗸𝗶𝗹𝗹𝘀 ✔ Senior Developer - Laravel - PHP - React - XML - JSON ✔ API Expert - RESTful API - Google API - MLS API - RESTful API - RESTful Architecture - SOAP API - Google API - Laravel API - RESO API ✔ Business Automation Solutions - Zapier - Google Sheets Thanks for learning about me! If you’re looking to get your WordPress plugin integration project done right the first time, 𝗶𝗻𝘃𝗶𝘁𝗲 𝗺𝗲 𝘁𝗼 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗷𝗲𝗰𝘁 𝗼𝗻 𝗨𝗽𝘄𝗼𝗿𝗸 or 𝘀𝗲𝗻𝗱 𝗺𝗲 𝗮 𝗱𝗶𝗿𝗲𝗰𝘁 𝗺𝗲𝘀𝘀𝗮𝗴𝗲. I’ll invite you to book a complimentary consultation call together. Talk soon! Rick aka Patrick Mac Gillis ❝ 𝘾𝙤𝙪𝙡𝙙𝙣'𝙩 𝙝𝙖𝙫𝙚 𝙗𝙚𝙚𝙣 𝙝𝙖𝙥𝙥𝙞𝙚𝙧 𝙬𝙞𝙩𝙝 𝙍𝙞𝙘𝙠'𝙨 𝙬𝙤𝙧𝙠, 𝙘𝙤𝙢𝙢𝙪𝙣𝙞𝙘𝙖𝙩𝙞𝙤𝙣, 𝙖𝙩𝙩𝙚𝙣𝙩𝙞𝙤𝙣 𝙩𝙤 𝙙𝙚𝙩𝙖𝙞𝙡𝙨, 𝙧𝙚𝙨𝙥𝙤𝙣𝙨𝙞𝙫𝙚𝙣𝙚𝙨𝙨, 𝙖𝙣𝙙 𝙚𝙫𝙚𝙧𝙮 𝙤𝙩𝙝𝙚𝙧 𝙖𝙨𝙥𝙚𝙘𝙩 𝙮𝙤𝙪'𝙙 𝙚𝙭𝙥𝙚𝙘𝙩 𝙛𝙧𝙤𝙢 𝙖 𝙥𝙧𝙤𝙛𝙚𝙨𝙨𝙞𝙤𝙣𝙖𝙡 𝙙𝙚𝙫𝙚𝙡𝙤𝙥𝙚𝙧. 𝙄𝙛 𝙄 𝙣𝙚𝙚𝙙 𝙖𝙙𝙙𝙞𝙩𝙞𝙤𝙣𝙖𝙡 𝙬𝙤𝙧𝙠 𝙤𝙧 𝙝𝙖𝙫𝙚 𝙖 𝙣𝙚𝙬 𝙥𝙧𝙤𝙟𝙚𝙘𝙩, 𝙍𝙞𝙘𝙠 𝙞𝙨 𝙩𝙝𝙚 𝙤𝙣𝙡𝙮 𝙤𝙣𝙚 𝙄'𝙡𝙡 𝙧𝙚𝙖𝙘𝙝 𝙤𝙪𝙩 𝙩𝙤! ❞ 🗣 𝙍𝙤𝙗 𝙂𝙧𝙖𝙗𝙤𝙬𝙨𝙠𝙞 - 𝙊𝙬𝙣𝙚𝙧 - 𝙂𝙪𝙣𝙂𝙧𝙤𝙪𝙥𝙞𝙚
- API Development
- API
- API Integration
- Automation
- Real Estate IDX
- WordPress
- WooCommerce
- MLS Consulting
- WordPress Plugin
- Web Development
- RESTful API
- PHP
- Zapier
- JSON API
- GPT API
Saharanpur, India
I help SaaS companies, startups and engineering teams by creating clear, practical documentation that makes products easier to use and maintain. My work includes user guides, how-to guides, API documentation, SOPs, and developer documentation. I always focus on creating content that helps users complete tasks quickly, reduces repetitive support requests and improves onboarding for both customers and internal teams. With a strong background in software engineering and web development, I understand the systems behind the documentation. This allows me to work directly with APIs, codebases, product teams and technical stakeholders to create accurate, well-structured documentation that stays useful as products evolve. 🔹 User Guides | How-to Guides I create clear, task-focused documentation that helps users understand your product, complete workflows efficiently, and reduce dependency on support teams. ✅ User guides ✅ How-to guides ✅ Step-by-step tutorials ✅ Product onboarding guides ✅ Feature walkthroughs ✅ Knowledge base articles ✅ FAQs and troubleshooting guides ✅ Internal process documentation ✅ User manuals ✅ Visual workflows and screenshots 🔹 API Documentation (OpenAPI / Swagger Expert) I create complete, production-ready API documentation that includes: ✅ Clear endpoint descriptions ✅ Request body parameters ✅ Query parameters & path parameters ✅ Authentication flows (JWT, OAuth, API Keys) ✅ Response structures with status codes ✅ Error codes with detailed schemas ✅ Properly defined data models ✅ Example requests & responses ✅ Postman collections ✅ SDK usage examples I work extensively with: Markdown • YAML • JSON • OpenAPI • Swagger • Redocly • Postman • GitHub ▪︎ ReadMe • Google Docs ▪︎ Zendesk • Docusaurus Your APIs will not only function well - they will be understood instantly. 🔹 Developer & Technical Documentation I create: ✅ Developer Guides ✅ API References ✅ SDK Documentation ✅ Integration Guides ✅ Database Documentation (SQL & NoSQL) ✅ System Architecture Documentation ✅ Technical Blogs & Articles ✅ Internal Engineering Documentation ✅ System Operating Procedures (SOPs) ✅ User Manuals ✅ How-To Guides ✅ Step-by-Step Tutorials Whether your audience is developers, internal teams or non-technical users - I adapt tone, depth and structure accordingly. 🔹 Developer Portals & Documentation Platforms I build structured, branded documentation portals using: ✅ Redocly ✅ ReadMe ✅ GitBook ✅ Docusaurus ✅ Mintlify ✅ Stoplight ✅ Confluence ✅ GitHub I ensure your documentation is searchable, scalable, version-controlled, and beautifully structured. 🔹 Technical & Engineering Strength My technical capabilities allow me to go beyond surface-level writing: ✅ Testing and validating APIs with Postman ✅ Running and testing SDKs ✅ Code commenting and codebase documentation ✅ JavaScript & TypeScript documentation ✅ Python code refactoring & documentation ✅ REST API workflows ✅ JSON, YAML, HTML, CSS ✅ Database structure documentation (SQL | NoSQL) Because I understand the code, I document it accurately. 🔹 What You Can Expect ✅ Clear, concise, and developer-friendly API documentation ✅ Reduced support tickets and improved onboarding ✅ Well-structured, scalable documentation systems ✅ Fast turnaround & deadline commitment ✅ Proactive communication ✅ Long-term documentation management support #TechnicalWriting #TechnicalDocumentation #UserDocumentation #UserGuides #APIDocumentation #OpenAPI #Swagger #SOPWriting #KnowledgeBase #DeveloperDocumentation #InstructionManual #ProcessDocumentation #SoftwareDocumentation #Markdown #GitBook
- API
- Technical Writing
- Content Writing
- Technical Documentation
- API Documentation
- AI Writing Generator
- AI Agent Development
- Technical Documentation Management
- API Integration
- React
- MongoDB
- SQL
- Node.js
- JavaScript
- HTML
- CSS
- Blockchain, NFT & Cryptocurrency
- Cryptocurrency
- OpenAPI
- Next.js
Kharkiv, Ukraine
I build data- and API-heavy platforms on Laravel + React — and own them end-to-end. My focus is the parts most developers bolt on as an afterthought: interactive maps (Mapbox / Leaflet / Google Maps) and Meta / Google marketing-API integrations. 15 years, 50+ projects delivered, 100% Job Success. I work best on systems built to last and grow — but I'm just as happy taking a single, well-scoped task to start. ⚙️ FULL-STACK WEB PRODUCTS Laravel APIs paired with React frontends, built to last — not just to ship. From SaaS platforms and admin dashboards to a multi-brand CMS engine powering 15+ automotive dealer websites (Volvo, Mercedes-Benz, Alfa Romeo, Jaguar, Land Rover). 🗺 Interactive Maps — Mapbox / Leaflet / Google Maps API ◾ Custom maps: styled tiles, markers, plotting live data ◾ Map tools: drawing & editing shapes, measurements and calculations on the map ◾ Example: a solar-PV design tool with live roof mapping 🛠️ Meta Graph / Marketing API ◾ Lead capture: real-time leads delivered straight to CRM, email, or messenger ◾ Ad tooling: custom reporting logic, automated insights, campaign automation ◾ Publishing & analytics: posting to Instagram/Facebook (feed, stories), post & profile insights 🗃️ Google API ◾ Custom Looker Studio connectors ◾ Google Merchant Center feeds (recent project: 30k+ SKUs synced) ◾ Google Ads automation tools 💳 Payments ◾ Standard and custom Stripe / PayPal / Afterpay integrations However you want to start — a full build, a senior pair of hands on an existing codebase, or one focused task (a map feature, a Meta/Google API integration, a tracking or feed setup) — I'm easy to work with and quick to get going. Send a short note about your project, even a rough idea, and I'll tell you honestly how I'd approach it. 🤝 Thank you, Vitalii Komliev
- API Development
- Laravel
- React
- PHP
- JavaScript
- API Integration
- Web Development
- Mapbox
- Leaflet
- Google Maps API
- Facebook Graph API
- Node.js
- Next.js
- GIS
- Marketing API Integration
- Instagram API
- Facebook Advertising
- AI Development
- AI Agent Development
- Marketing Automation
Dubai, United Arab Emirates
Software Architect & Technical Writer. 16 years of engineering experience. 86 completed projects across 35+ organizations — Branch, Bright Data, NexHealth, Fonoa, and more. I build API and Product documentation systems that keep pace with fast-moving products. CORE SERVICES: → API & Developer Documentation — Turn complex REST, GraphQL, and OpenAPI specs into clean, navigable references developers trust and return to → Documentation Architecture — Design docs-as-code pipelines, CI/CD workflows, and multi-environment setups that keep your docs in sync with your codebase automatically → SaaS & Platform Docs — Build onboarding flows, help centers, release notes, and internal runbooks that reduce time-to-value for every new user → API Integrations & Technical Guides — Build and document the integration layer so your developers have both working code and clear guidance → AI Agents & Automation Systems — Design and deploy Claude/OpenAI-powered agents, LLM workflows, and automation pipelines (Make, Zapier, GitHub Actions) that handle real business processes end-to-end Documentation Platforms: ReadMe · Mintlify · Docusaurus · Stoplight · GitBook · Swagger/OpenAPI 3.0 · Redoc · Postman · Confluence Technical Stack: Claude API · OpenAI · LangChain · Make · Supabase · Node.js · REST · GraphQL · GitHub Actions · JavaScript · Python · AWS Industries: AI/ML · Fintech · Healthcare · SaaS · Developer Tools · Maritime · E-Commerce Lets connect and I can map out exactly what needs to be built.
- Technical Writing
- API Documentation
- Instruction Manual
- Technical Documentation
- User Manual
- Technical Report
- Swagger
- Report Writing
- Apiary
- Content Writing
- Content Creation
- OpenAPI
- Article Writing
- Software Documentation
Lahore, Pakistan
🌐🚀 MVP / SAAS Specialist Expertise in | AI Developer | RAG | LLM | AI Integration | Python | OpenAI API Integration | Artificial intelligence | Machine Learning | Langchain | Django React JavaScript | FastAPI | AI agent | AI App Development | AI bot | AI chatbot | AI Agent | Restful API | PostgresSQL | Botpress | PostHog | MCP Server | Multi-Agents/Multiple Agents | Voice AI 🔑 𝐈 𝐛𝐮𝐢𝐥𝐝 𝐚𝐧𝐝 𝐝𝐞𝐩𝐥𝐨𝐲 𝐜𝐮𝐬𝐭𝐨𝐦 𝐰𝐞𝐛 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬, AI-Powered MVP, AI Healthcare Tools, AI Writing Tool, GPT Clone, Full Stack Application, Multi-Tenant 𝐚𝐧𝐝 𝐢𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐯𝐞 𝐀𝐈 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐭𝐡𝐚𝐭 𝐬𝐨𝐥𝐯𝐞 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐩𝐫𝐨𝐛𝐥𝐞𝐦𝐬, 𝐜𝐫𝐞𝐚𝐭𝐞 𝐧𝐞𝐰 𝐯𝐚𝐥𝐮𝐞, 𝐚𝐧𝐝 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐮𝐬𝐞𝐫 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐬. 🎁 A 100% refund, if I'm unable to meet our agreed commitments. No questions asked! 𝐊𝐞𝐲 𝐅𝐚𝐜𝐭𝐬: 🧑💻 8+ years of experience as a Full Stack Developer and Artificial Intelligence Specialist 🚀 50+ market-winning projects launched ⌛ Around 600 hours on Upwork 🎯 Top-Rated on Upwork 🌉𝐈'𝐯𝐞 𝐬𝐨𝐥𝐯𝐞𝐝 𝐞𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐩𝐫𝐨𝐛𝐥𝐞𝐦𝐬 𝐟𝐨𝐫 𝐭𝐨𝐩 𝐜𝐨𝐦𝐩𝐚𝐧𝐢𝐞𝐬 𝐚𝐧𝐝 𝐬𝐭𝐚𝐫𝐭𝐮𝐩𝐬 𝐚𝐫𝐨𝐮𝐧𝐝 𝐭𝐡𝐞 𝐠𝐥𝐨𝐛𝐞 ☑️ Under Armour ☑️ Snowflake ☑️ Estateza ☑️ SearchLook ☑️ Sparrowcharts 💡 𝐖𝐡𝐚𝐭 𝐜𝐚𝐧 𝐈 𝐛𝐫𝐢𝐧𝐠 𝐭𝐨 𝐲𝐨𝐮𝐫 𝐭𝐚𝐛𝐥𝐞? ☑️ Full Stack Development for robust and scalable web applications, including both front-end and back-end technologies ☑️ Custom Web and Application Development utilizing frameworks like Python, React, Django, React.js / Angular / Next.js / Nest / Nust / Golang and Node.js ☑️ Expertise in LLMs and ChatGPT integration to enhance application functionalities ☑️ Proficiency in RESTful APIs, GraphQL, and database management ☑️ Experience with cloud services like AWS, Azure, and Google Cloud for deployment and scaling ☑️ Strong problem-solving skills and ability to optimize user experiences and application performance 🌟𝐇𝐞𝐫𝐞'𝐬 𝐰𝐡𝐚𝐭 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐡𝐚𝐯𝐞 𝐭𝐨 𝐬𝐚𝐲 𝐚𝐛𝐨𝐮𝐭 𝐦𝐞: 🌟 Ali Hamza is in the top tier of software developers and data engineers. He is far more than an implementer; he is a strong architect. During this project set, Usama worked on data from major US corporations 🌟 One of the best developers I have ever worked with. He is always on time and does exactly what he says he will do. I could not recommend him enough. 🎯 𝐈 𝐩𝐨𝐬𝐬𝐞𝐬 𝐞𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 𝐢𝐧 𝐭𝐡𝐞 𝐟𝐨𝐥𝐥𝐨𝐰𝐢𝐧𝐠 𝐝𝐨𝐦𝐚𝐢𝐧𝐬 ☑️ Full Stack Development: ☑️ Backend: ☑️ Python ☑️ Django ☑️ Flask ☑️ NodeJs, Express.js ☑️ Rest API, SOAP ☑️ Websocket ☑️ Third party integration ☑️ Frontend: ☑️ Html5, Css3, Bootstrap ☑️ Javascript ☑️ ReactJs, Angular ☑️ VueJs ☑️ NextJs, NuxtJs ☑️ Ajax, JSON, XML, XHTML, SVG, Canvas ☑️ API integration, OpenAI API ☑️ DevOps: ☑️ CI/CD Pipelines ☑️ IaC ☑️ Docker ☑️ Kubernetes / Terraform ☑️ Elasticsearch ☑️ Cloud Computing (Azure, AWS, Google Cloud) ☑️ Version Control (Git, GitHub) ☑️ Containerization + Orchestration (Docker, Kubernetes) ☑️ Spring Boot / Java, Microservices Architecture ☑️ Real-time / Streaming / Event-driven architectures ☑️ Session Recordings / Session Replays ☑️ GraphQL / gRPC ☑️ Kafka / Redpanda (real-time streaming) ☑️ Generative Artificial Intelligence (GenAI) ☑️ Large Language Models (LLMs) ☑️ Natural Language Processing (NLP) ☑️ ChatBots and Virtual Assistants ☑️ Text to Image Modelling ☑️ Vector Databases ☑️ Retrieval-Augmented Generation (RAG) ☑️ ChatGPT ☑️ OpenAI ☑️ AI/ML (Artificial Intelligence + Machine Learning) ☑️ Multimodal AI / NLP ☑️ Agentic AI / Autonomous Agents ☑️ “Vibe Coding” / AI-first / prompt-driven dev workflows ☑️ Explainable AI / Ethical, Sustainable AI ☑️ Edge AI / On-device / Federated Learning ☑️ Web Scraping ☑️ Data Extraction ☑️ Data Scraping ☑️ Scrapy ☑️ Selenium ☑️ Beautiful Soup ☑️ Requests ☑️ Deployment and scheduling the scraping scripts on server ☑️ PostHog / Mixpanel / Amplitude / Segment (Twilio Segment) ☑️ OpenTelemetry (Datadog / Grafana / Sentry ☑️ LaunchDarkly / GrowthBook / VWO / Optimizely / Klaviyo ☑️ Airbyte / Fivetran / DBT ☑️ Auth0 / Clerk / SuperTokens / Google Auth ☑️ Stripe / Paddle ☑️ Plaid AI + Analytics Integrations ☑️ LangSmith / LangFuse – Observability and evaluation layer for LLM apps. ☑️ Weaviate / Pinecone / Qdrant – Vector DBs for AI features with analytics hooks. ☑️ Whylabs / Arize AI – ML observability & monitoring (similar to PostHog but for models). I am a Fullstack AI Developer - Python Django, React, Flask, API Integration I can help you to build: ⚡ Fast MVP Development (AI-Powered) ✅ ⚡ AI Powered SAAS Applications ✅ ⚡ AI Agent RAG Systems | AI Chatbots ✅ ⚡ Open AI API Integrations / LLM ✅ ⚡ Full stack Development (AI/ML, Django, React) ✅ ⚡ AI Workflows Automation ⚡ Voice AI tools Thank you for visiting my profile. Looking forward to working with you! I will 💲REFUND 💲, if your expectation wont meet. For reference, you can see my work and testimonials below. Lets Chat!
- API
- Artificial Intelligence
- Machine Learning
- AI Agent Development
- OpenAI API
- AI Development
- Django
- Python
- Retrieval Augmented Generation
- API Integration
- JavaScript
- React
- PostgreSQL
- Large Language Model
- Chatbot Development
- LangChain
- LLM Prompt Engineering
- Web Application
- AI App Development
- FastAPI
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API developer hiring guide
API developers design and build the connections that power modern software ecosystems. From enabling real-time data exchange between platforms to creating secure endpoints for mobile apps, these professionals help businesses automate workflows, improve system integration, and unlock new product capabilities.
What does an API developer do?
An API developer builds and maintains application programming interfaces (APIs) that allow software systems to connect, share data, and perform tasks. These professionals focus on designing secure, well-documented, and scalable APIs that enable seamless integration between platforms, mobile apps, and web services.
Companies hire API developers to streamline operations, connect external providers, automate internal workflows, and enable third-party access to their software products.
How to hire an API developer on Upwork
Hiring the right API developer starts with a clear job post and continues through evaluating skills, communication, and compatibility.
Step 1: Craft a targeted job post
A well-crafted job post attracts qualified API developers who match your project requirements.
Share your objectives. Start with a clear job description that outlines your technical needs and goals.
Define your tech stack. Mention if your system uses RESTful APIs, GraphQL, AWS, or specific frameworks like Flask or Express.
List use cases and deliverables. Explain what the API should do and include whether you need documentation, testing, or integration support.
To streamline this step, use the Job Post Generator, powered by Uma™, Upwork’s Mindful AI, to quickly draft a customized job post for your review.
Step 2: Filter and evaluate candidates
Systematically assess candidates based on technical expertise, project history, and tool proficiency.
Search the talent pool using Upwork's filters for skills, hourly rate, and work history.
Review portfolios. Look for experience building secure APIs with scalable architecture.
Check API design experience. Strong developers demonstrate knowledge in API management, life cycle, and versioning.
Look for relevant tools. Confirm familiarity with Postman, Swagger/OpenAPI, AWS, and authentication systems like OAuth.
You can use Upwork’s instant video interviews to screen applicants for a best-fit shortlist, with Uma providing side-by-side candidate comparisons.
Step 3: Interview your top choices
Direct conversations reveal how candidates approach technical challenges. Consider these common back-end developer interview questions to structure your discussions.
Discuss their process. Ask how they design, test, and deploy APIs and handle edge cases.
Explore documentation standards. Clear API documentation improves developer experience and long-term usability.
Ask about scalability. Confirm the developer understands how to optimize APIs for performance.
Upwork Messages allows you to schedule and conduct live video interviews on the platform, with call transcripts and summaries available after the calls.
Step 4: Agree on scope and begin work
Before starting the work, you’ll want a firm contract in place Establishing well-defined project parameters before work begins creates a foundation for successful collaboration.
Define project structure. Choose between a fixed-price or hourly contract based on your project scope.
Outline deliverables and timelines. Break work into sprints or milestones where possible.
Discuss access and security. Ensure safe sharing of API keys, credentials, and runtime environments.
Plan for maintenance. Set terms for ongoing support if needed.
Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this article. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.
The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.
How much does hiring an API developer cost?
Most API developers on Upwork charge $20-$40 per hour, depending on experience, tech stack, and project complexity.
You can use these typical cost ranges to help estimate a budget for your API developer project needs:
Simple integration or endpoint setup
$200-$500 /project
- Single REST endpoint creation
- Basic authentication setup
- Simple third-party API integration
Standard API development
$500-$2,000 /project
- Multiendpoint API with authentication
- Documentation using Swagger/OpenAPI
- Integration with internal tools
Complex or custom API architecture
$2,000-$6,000+ /project
- Full API system design
- Public API with versioning
- Microservices architecture
- Advanced security implementation
Ongoing API maintenance
$800-$3,000 /month
- Performance monitoring
- Bug fixes and endpoint updates
- Documentation maintenance
Strategic API consulting
$3,000-$10,000+ /project
- API strategy and roadmap
- Architecture review
- Developer portal setup
FAQs about API developers
Frequently asked questions
Is hiring an API developer worth it?
Hiring an API developer is a smart investment for projects involving system integrations, third-party access, or workflow automation. A skilled developer can reduce development time and improve product flexibility.
What skills should I look for in an API developer?
When hiring an API developer, look for experience with RESTful API design, versioning, error handling, and authentication protocols like OAuth. Common languages include Python, JavaScript (Node.js), or Java. Familiarity with API testing and documentation tools like Swagger or Postman is also valuable.
What's the difference between an API developer and a back-end developer?
The API developer role is a subset of back-end developers, focusing specifically on creating APIs for system communication. A dedicated API developer is typically more skilled in designing secure, scalable, and well-documented interfaces.
Do I need a full development team, or can one API developer handle the project?
Many API projects can be handled by one experienced professional. However, if the API is part of a larger system overhaul or involves deep coordination with front-end or mobile teams, a broader development team may offer better outcomes.
Are API developers responsible for API documentation?
Yes, in most cases, skilled API developers provide technical documentation covering endpoints, parameters, and authentication methods. For customer-facing APIs, you may also want a technical writer to polish the format.
Which programming languages are commonly used in API development?
Python, JavaScript (Node.js), and Java are the most common languages for API development. Developers may also use frameworks like FastAPI, Express, or Spring Boot. Familiarity with cloud service SDKs like AWS is important for deployment.
How do API developers support AI agents and modern web applications?
API developers build stable, scalable interfaces that allow AI agents and web applications to access data, trigger actions, and interact with external systems in real time.
What’s the role of an API developer in managing public APIs?
An API developer builds and maintains connections that power software ecosystems, especially when using or publishing public APIs. They ensure your API's functionality is reliable, well-documented, and secure.
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