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Lakshitha E.

Kandy, Sri Lanka

$15/hr
5.0
13 jobs

๐—•๐˜‚๐—ถ๐—น๐—ฑ | ๐——๐—ฒ๐—ฝ๐—น๐—ผ๐˜† | ๐—ฆ๐—ฐ๐—ฎ๐—น๐—ฒ You have a visionary SaaS or AI product idea. You don't want to manage a scattered team of backend developers, DevOps engineers, and ML specialists, and you definitely don't want to micromanage tasks. You need a single, accountable technical partner to architect the system, solve the hard problems, and turn your idea into a scalable reality. Iโ€™m a Computer Science grad (first-class), but I don't just live in the theory. I combine a heavy academic background in math, stats, and ML with fast, practical execution. I don't just write code. I take ownership of the whole project: the design, the architecture, and the infrastructure. ๐Ÿง  ๐—›๐—ผ๐˜„ ๐—œ ๐—”๐—ฝ๐—ฝ๐—ฟ๐—ผ๐—ฎ๐—ฐ๐—ต ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—ฆ๐˜†๐˜€๐˜๐—ฒ๐—บ: When you hand me a prototype, an MVP, or even just a wireframe, my first step is mapping the architecture. I am a natural problem solver, so I look at the big picture first. I treat your product like a business asset and focus on the hard realities: ๐Ÿ”น Can we launch the MVP faster to validate the market? ๐Ÿ”น Does it do exactly what your users need? ๐Ÿ”น Is the AWS bill optimized, or are we burning money? ๐Ÿ”น Will it crash if traffic spikes tomorrow? ๐Ÿ”น Is your proprietary data actually secure? ๐Ÿ”น If a server dies, is the database instantly recoverable? ๐Ÿ“ˆ ๐—ฅ๐—ฒ๐—ฐ๐—ฒ๐—ป๐˜ ๐—ช๐—ถ๐—ป๐˜€ & ๐—ช๐—ต๐—ฎ๐˜ ๐—œ ๐——๐—ฒ๐—น๐—ถ๐˜ƒ๐—ฒ๐—ฟ: ๐Ÿ”น ๐—œ๐—ป๐—ณ๐—ฟ๐—ฎ๐˜€๐˜๐—ฟ๐˜‚๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ ๐—ฆ๐—ฐ๐—ฎ๐—น๐—ถ๐—ป๐—ด & ๐—–๐—ผ๐˜€๐˜ ๐—ข๐—ฝ๐˜๐—ถ๐—บ๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป: Recently, completely re-architected a system to handle ๐Ÿฐ๐Ÿฌ๐˜… ๐—ฐ๐—ผ๐—ป๐—ฐ๐˜‚๐—ฟ๐—ฟ๐—ฒ๐—ป๐˜ ๐—ฝ๐—ฟ๐—ผ๐—ฐ๐—ฒ๐˜€๐˜€๐—ถ๐—ป๐—ด while achieving a ๐Ÿณ๐Ÿฌ% ๐—ฐ๐—ผ๐˜€๐˜ ๐—ผ๐—ฝ๐˜๐—ถ๐—บ๐—ถ๐˜‡๐—ฎ๐˜๐—ถ๐—ผ๐—ป on cloud spending. ๐Ÿ”น ๐—”๐—œ-๐—ก๐—ฎ๐˜๐—ถ๐˜ƒ๐—ฒ ๐—ฆ๐—ฎ๐—ฎ๐—ฆ ๐—”๐—ฟ๐—ฐ๐—ต๐—ถ๐˜๐—ฒ๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ: I use my deep learning research experience to build secure, private LLM and RAG pipelines tailored to your business data. ๐Ÿ”น ๐—”๐˜‚๐˜๐—ผ๐—บ๐—ฎ๐˜๐—ฒ๐—ฑ ๐—–๐—น๐—ผ๐˜‚๐—ฑ ๐—œ๐—ป๐—ณ๐—ฟ๐—ฎ๐˜€๐˜๐—ฟ๐˜‚๐—ฐ๐˜๐˜‚๐—ฟ๐—ฒ (๐——๐—ฒ๐˜ƒ๐—ข๐—ฝ๐˜€): I architect zero-downtime CI/CD pipelines and configure AWS/GCP environments so you can ship features fast. ๐Ÿ”น ๐—•๐˜‚๐—น๐—น๐—ฒ๐˜๐—ฝ๐—ฟ๐—ผ๐—ผ๐—ณ ๐—•๐—ฎ๐—ฐ๐—ธ๐—ฒ๐—ป๐—ฑ ๐—ฆ๐˜†๐˜€๐˜๐—ฒ๐—บ๐˜€: I engineer high-performance backends (Django, Node) that won't crash when your user base scales. ๐Ÿค๐— ๐˜† ๐—ช๐—ผ๐—ฟ๐—ธ๐—ถ๐—ป๐—ด ๐—ฆ๐˜๐˜†๐—น๐—ฒ: I work best with founders and small teams who need a leader. You bring the business problem and the priorities โ€” what matters next and why. I own the rest: the architecture, how the work gets broken down, and the delivery. I run it in focused sprints against agreed goals, with async updates and a call when a real decision needs one โ€” so you get momentum without daily standups eating your week. When you hire me, you are not buying hours of typing, or a developer to assign tickets to. You are buying the judgment, speed, and technical leadership required to win โ€” and a clean, production-ready product handed back to you. Let's look at your system and get it running right.

  • REST API
  • API Development
  • Python
  • Node.js
  • Django
  • React
  • FastAPI
  • Amazon Web Services
  • Docker
  • Artificial Intelligence
  • SaaS Development
  • PostgreSQL
  • AI App Development
  • Software Architecture & Design
  • LangChain
Richard M.

Scarborough, United Kingdom

$80/hr
5.0
32 jobs

Join the Dark Side! Use my Force Powers (coding!) to get your app or platform built to your specifications. I've built everything from mobile apps to globe-spanning enterprise systems. No Death Stars - sorry I don't know hardware! ;) Darth Vader was pleased with me, you will be too! I'm a Founder/Developer with multiple startups launched, based on 4 decades of international commercial experience in software development across 30 programming languages and frameworks, including React, NextJs, NodeJs, Angular, Python, Ruby on Rails & Javascript/Typescript, Django/DRF. I have first class team building and leadership experience, coupled with architect and design experience. I've built entire teams from nothing to 35 developers and companies from nothing to multi-million $ in turnover. My focus now is on building scalable cloud-based SaaS platforms. I am passionate about good UX, well written code, testing and documentation. Here are two examples: A mobile EdTech app that I built in 2016 was appraised by Oxford University - see my portfolio where you can read about it in The Guardian newspaper. In 2011 I built the entire UI for a cryptographic app. This app was reviewed by PCMag.com and rated EXCELLENT (4/5 stars) - "Its simple interface conceals high-tech encryption technology to keep your communications safe". I am flexible with my workings hours and happy to align them with any time zone. I am a native English speaker educated in England to MA level, so I would say that my communication skills are top class. I'm also an ex-teacher, so ideally suited to passing on knowledge to others; equally happy talking to non-technical audiences. I look forward to working with you. May The Force Be With You! ...yeah ok so I'm a little bit of a geek...it comes with the territory!

  • REST API
  • Heroku
  • Amazon Web Services
  • React
  • Web Development
  • Database Design
  • Docker
  • Angular
  • Ruby on Rails
  • SaaS
  • Python
  • Django
  • PostgreSQL
  • TypeScript
  • Next.js
Tahoor A.

Queens County, New York

$45/hr
5.0
11 jobs

Need a product thatโ€™s scalable, production-ready, and built on reliable architecture from frontend to backend, AI systems, APIs, and mobile apps? Thatโ€™s what I deliver. As a Senior Full Stack & AI Automation Engineer with 7+ years of experience, I help startups and growing businesses build high-performing web platforms, mobile applications, backend systems, and AI-powered workflows that scale reliably under real-world usage. My expertise spans backend engineering, AI integrations, cloud infrastructure, modern web applications, and cross-platform mobile development, allowing me to own complete end-to-end product development instead of only isolated features. What I Bring to Your Project: a. Backend & System Architecture Scalable backend systems with Node.js, Nest.js, Express.js, FastAPI REST APIs, GraphQL, WebSockets, event-driven architectures Authentication, RBAC, payment systems, admin dashboards Real-time systems, queues, caching, and performance optimization Database architecture & cloud-native backend infrastructure b. AI, Automation & Intelligent Systems AI-powered assistants, workflow automations & internal tools OpenAI, LangChain, RAG pipelines, semantic search AI chat systems, recommendation engines & automation agents n8n workflows, AI integrations, and operational automations Voice AI, conversational systems & smart business workflows c. Web & Frontend Development Modern web apps with React.js, Next.js, TypeScript Responsive, high-performance UI systems Dashboard platforms, SaaS products & marketplace applications Tailwind CSS, scalable frontend architecture & API integrations d. Mobile App Development Production-grade Flutter & React Native applications Cross-platform iOS & Android development Real-time mobile experiences & scalable app architecture App Store & Google Play deployment management e. Cloud & Infrastructure AWS (EC2, S3, Lambda, RDS) Docker, CI/CD pipelines, GitHub Actions Firebase, Supabase, GCP, Vercel Monitoring, deployment pipelines & scalable cloud environments Tech Stack & Skills: Frontend & Mobile: React.js, Next.js, Flutter, React Native, TypeScript, Dart Backend: Node.js, Nest.js, Express.js, FastAPI, Django Databases: PostgreSQL, MySQL, MongoDB, Redis, Firebase, Supabase AI & Automation: OpenAI APIs, LangChain, n8n, Dialogflow, Voiceflow Cloud & DevOps: AWS, Docker, GitHub Actions, Vercel Over the past 7+ years, Iโ€™ve helped businesses build SaaS platforms, AI-powered systems, marketplaces, automation infrastructures, fintech products, and real-time applications used by growing startups and operational teams worldwide. My focus is not just writing code, but building scalable systems with clean architecture, reliable performance, and long-term maintainability. Letโ€™s connect and discuss how I can help bring your product to production successfully.

  • REST API
  • Automation
  • AI Bot
  • AI Agent Development
  • AI Implementation
  • AI Product Management
  • ChatGPT
  • ElevenLabs
  • Node.js
  • Next.js
  • Python
  • FastAPI
  • GraphQL
  • JavaScript
  • SQL
Kamaal M.

Saharanpur, India

$20/hr
5.0
50 jobs

I used to be the person on the support team fielding the same integration question five times a day - because the docs never explained it properly. That's what pulled me into technical documentation engineering. Not theory. The actual gap between what a product does and what a developer or non-technical end-user can figure out from the docs alone. Since then, I have spent my time cleaning up that gap for SaaS companies. I write and structure API documentation that developers can actually follow without pinging support - OpenAPI/Swagger specs, endpoint references, authentication guides, quickstarts, and the kind of "Getting Started" pages that stop a new user from bouncing in the first five minutes. A good chunk of my recent work has also been in n8n - documenting custom nodes, workflow logic, and automation setups so that teams (and their clients) understand exactly what's running under the hood and why. I like this kind of work because it sits right at the intersection of technical accuracy and plain-English clarity - you need both, or the doc is useless. {What I bring to your project}: - API documentation (OpenAPI/Swagger, REST, Postman collections) - SaaS product docs, help centers, and onboarding guides - n8n workflow and node documentation - Rewriting/auditing existing docs that are outdated, inconsistent, or just confusing If your product works but your documentation is quietly costing you support tickets, churn, or dev time - that's exactly the kind of mess I like sorting out. Send me a message and tell me what you're working with. ------------------------------------------------------------------- {My Background and Skillset} 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. ๐Ÿ”น 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. โœ… User guides โœ… How-to guides โœ… Step-by-step tutorials โœ… Product onboarding guides โœ… Feature walkthroughs โœ… Knowledge base articles โœ… FAQs and troubleshooting guides โœ… Internal process documentation โœ… User manuals โœ… Visual workflows and screenshots ๐Ÿ”น API Documentation (OpenAPI / Swagger Expert) I create complete, production-ready API documentation that includes: โœ… Clear endpoint descriptions โœ… Request body parameters โœ… Query parameters & path parameters โœ… Authentication flows (JWT, OAuth, API Keys) โœ… Response structures with status codes โœ… Error codes with detailed schemas โœ… Properly defined data models โœ… Example requests & responses โœ… Postman collections โœ… SDK usage examples I work extensively with: Markdown โ€ข YAML โ€ข JSON โ€ข OpenAPI โ€ข Swagger โ€ข Redocly โ€ข Postman โ€ข GitHub โ–ช๏ธŽ ReadMe โ€ข Google Docs โ–ช๏ธŽ Zendesk โ€ข Docusaurus Your APIs will not only function well - they will be understood instantly. ๐Ÿ”น Developer & Technical Documentation I create: โœ… Developer Guides โœ… API References โœ… SDK Documentation โœ… Integration Guides โœ… Database Documentation (SQL & NoSQL) โœ… System Architecture Documentation โœ… Technical Blogs & Articles โœ… Internal Engineering Documentation โœ… System Operating Procedures (SOPs) โœ… User Manuals โœ… How-To Guides โœ… Step-by-Step Tutorials Whether your audience is developers, internal teams or non-technical users - I adapt tone, depth and structure accordingly. ๐Ÿ”น Developer Portals & Documentation Platforms I build structured, branded documentation portals using: โœ… Redocly โœ… ReadMe โœ… GitBook โœ… Docusaurus โœ… Mintlify โœ… Stoplight โœ… Confluence โœ… GitHub I ensure your documentation is searchable, scalable, version-controlled, and beautifully structured. ๐Ÿ”น Technical & Engineering Strength My technical capabilities allow me to go beyond surface-level writing: โœ… Testing and validating APIs with Postman โœ… Running and testing SDKs โœ… Code commenting and codebase documentation โœ… JavaScript & TypeScript documentation โœ… Python code refactoring & documentation โœ… REST API workflows โœ… JSON, YAML, HTML, CSS โœ… Database structure documentation (SQL | NoSQL) Because I understand the code, I document it accurately. ----------------------------------------------------------------------------------- ##TechnicalDocumentationEngineering #TechnicalWriting #TechnicalDocumentation #UserDocumentation #UserGuides #APIDocumentation #OpenAPI #Swagger #SOPWriting #KnowledgeBase #DeveloperDocumentation #InstructionManual #ProcessDocumentation #SoftwareDocumentation #Markdown #GitBook #n8n #n8nAutomation

  • REST API
  • Technical Documentation
  • Technical Writing
  • API Documentation
  • SaaS Development
  • OpenAPI
  • Markdown
  • User Guide Writing
  • n8n
  • AI Content Creation
  • Content Writing
  • JavaScript
  • React
  • Node.js
  • MongoDB Ops Manager
  • Blockchain Architecture
  • Crypto Asset
  • web3.js
Kishore K.

Noida, India

$25/hr
4.1
33 jobs

๐Ÿš€ TOP RATED PLUS | ๐ŸŒŸ100% Job Success | Senior Full Stack AI Developer | AI SaaS Architect I help startups and growing businesses build scalable SaaS platforms, AI-powered applications, marketplaces, dashboards, and modern cloud-native products that are fast, reliable, and built for long-term growth. ๐—ช๐—ถ๐˜๐—ต ๐Ÿญ๐Ÿฌ+ ๐˜†๐—ฒ๐—ฎ๐—ฟ๐˜€ ๐—ผ๐—ณ ๐—ฒ๐˜…๐—ฝ๐—ฒ๐—ฟ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ in Full Stack Development, Cloud Infrastructure, and DevOps, I specialize in taking products from idea to production with clean architecture, scalable systems, and production-ready engineering. I donโ€™t just build websites - I build complete digital products designed for real users, business scalability, and long-term maintainability. โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ’ก What Makes Me Different โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โœ… Full product engineering mindset - frontend, backend, cloud, DevOps & AI under one roof โœ… Production-grade SaaS and AI systems, not experimental prototypes โœ… Strong architecture and scalability focus โœ… Startup-friendly development approach with fast iteration cycles โœ… Long-term technical ownership and reliable communication โœ… Clean, maintainable, and scalable codebases โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿš€ Core Expertise โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โ€ข Next.js โ€ข React.js โ€ข Node.js โ€ข TypeScript โ€ข Python โ€ข PostgreSQL โ€ข Supabase โ€ข AWS โ€ข Docker & Kubernetes โ€ข Stripe Integrations โ€ข AI & LLM Integrations โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿค– AI-Powered Application Development โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” I build production-ready AI systems using OpenAI and Anthropic Claude APIs, including: โ€ข AI-powered SaaS applications โ€ข RAG systems & vector database workflows โ€ข AI chat platforms with streaming responses โ€ข AI automation systems โ€ข Structured AI workflows โ€ข LLM-powered dashboards & internal tools โ€ข AI copilots and assistant features โ€ข Knowledge base & semantic search systems I actively use modern AI-assisted engineering workflows with Cursor and Claude Code to build faster, maintain cleaner architecture, and deliver scalable systems efficiently. โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ’ป What I Build โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โ€ข Multi-tenant SaaS platforms โ€ข CRM & ERP systems โ€ข AI-powered products โ€ข Marketplace & booking platforms โ€ข Real-time applications โ€ข Dashboard & admin portals โ€ข E-commerce systems โ€ข API-driven platforms โ€ข Browser extensions โ€ข React Native mobile apps โ€ข Internal business automation tools โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โšก Frontend Development Expertise โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” Building modern, responsive, and high-performance user interfaces using: โ€ข Next.js & React.js โ€ข TypeScript โ€ข Tailwind CSS โ€ข Redux / Zustand โ€ข Vite โ€ข Responsive & mobile-first architecture โ€ข Pixel-perfect Figma-to-Frontend development โ€ข Performance optimization & Core Web Vitals improvements โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ›  Backend & Cloud Architecture โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โ€ข Node.js, Express.js & Nest.js โ€ข REST APIs & GraphQL โ€ข Python backend systems โ€ข PostgreSQL, MongoDB & Redis โ€ข Supabase & Firebase โ€ข Authentication & RBAC systems โ€ข Stripe Billing & Stripe Connect โ€ข Webhooks & third-party integrations โ€ข AWS Lambda, EC2, S3, CloudFront & RDS โ€ข Docker & Kubernetes deployments โ€ข CI/CD pipelines with GitHub Actions & GitLab CI โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โ˜๏ธ DevOps & Scalability โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” Strong experience with: โ€ข Cloud-native infrastructure โ€ข Containerized application deployment โ€ข Infrastructure scalability & optimization โ€ข Automated deployment pipelines โ€ข Monitoring & logging systems โ€ข Secure production deployments โ€ข High-performance backend optimization โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿ† Certifications โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” โ€ข AWS Developer Associate โ€ข Certified Kubernetes Administrator (CKA) โ€ข Docker Certified Associate โ€ข GCP Cloud Engineer โ€ข GitLab CI/CD Professional โ€ข MongoDB Certified Developer โ€ข DevOps Certified Engineer โ€ข Certified API Professional โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐ŸŽฏ Ideal Projects โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” Iโ€™m best suited for: โœ” SaaS startups โœ” AI product development โœ” Marketplace platforms โœ” Scalable web applications โœ” CRM & dashboard systems โœ” Long-term product development โœ” Cloud-native platforms โœ” Businesses requiring scalable architecture & technical ownership โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” ๐Ÿค Letโ€™s Build Something Exceptional โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ”โ” If youโ€™re building a serious SaaS platform, AI-powered product, scalable marketplace, or modern web application, I can help you architect, develop, deploy, and scale it successfully. From product strategy to production deployment, I bring both engineering expertise and product-focused thinking to every project. ๐Ÿ“… Available for Fixed Price & Hourly Projects ๐Ÿš€ Open to Long-Term Collaboration ๐Ÿ’ฌ Letโ€™s discuss your product vision and build something impactful together.

  • REST API
  • NodeJS Framework
  • MongoDB
  • Tailwind CSS
  • AWS Development
  • API Integration
  • Stripe API
  • Web Development
  • React
  • Node.js
  • NestJS
  • Third-Party Integration
  • Google Cloud Platform
  • Back-End Development
  • MEAN Stack
Syed A.

Lahore, Pakistan

$30/hr
4.8
52 jobs

๐ŸŒ๐Ÿš€ 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 ๐Ÿ”‘ ๐ˆ ๐›๐ฎ๐ข๐ฅ๐ ๐š๐ง๐ ๐๐ž๐ฉ๐ฅ๐จ๐ฒ ๐œ๐ฎ๐ฌ๐ญ๐จ๐ฆ ๐ฐ๐ž๐› ๐š๐ฉ๐ฉ๐ฅ๐ข๐œ๐š๐ญ๐ข๐จ๐ง๐ฌ, AI-Powered MVP, AI Healthcare Tools, AI Writing Tool, GPT Clone, Full Stack Application, Multi-Tenant ๐š๐ง๐ ๐ข๐ง๐ง๐จ๐ฏ๐š๐ญ๐ข๐ฏ๐ž ๐€๐ˆ ๐ฌ๐ฒ๐ฌ๐ญ๐ž๐ฆ๐ฌ ๐ญ๐ก๐š๐ญ ๐ฌ๐จ๐ฅ๐ฏ๐ž ๐œ๐จ๐ฆ๐ฉ๐ฅ๐ž๐ฑ ๐ฉ๐ซ๐จ๐›๐ฅ๐ž๐ฆ๐ฌ, ๐œ๐ซ๐ž๐š๐ญ๐ž ๐ง๐ž๐ฐ ๐ฏ๐š๐ฅ๐ฎ๐ž, ๐š๐ง๐ ๐ข๐ฆ๐ฉ๐ซ๐จ๐ฏ๐ž ๐ฎ๐ฌ๐ž๐ซ ๐ž๐ฑ๐ฉ๐ž๐ซ๐ข๐ž๐ง๐œ๐ž๐ฌ. ๐ŸŽ A 100% refund, if I'm unable to meet our agreed commitments. No questions asked! ๐Š๐ž๐ฒ ๐…๐š๐œ๐ญ๐ฌ: ๐Ÿง‘โ€๐Ÿ’ป 8+ years of experience as a Full Stack Developer and Artificial Intelligence Specialist ๐Ÿš€ 50+ market-winning projects launched โŒ› Around 600 hours on Upwork ๐ŸŽฏ Top-Rated on Upwork ๐ŸŒ‰๐ˆ'๐ฏ๐ž ๐ฌ๐จ๐ฅ๐ฏ๐ž๐ ๐ž๐ง๐ ๐ข๐ง๐ž๐ž๐ซ๐ข๐ง๐  ๐ฉ๐ซ๐จ๐›๐ฅ๐ž๐ฆ๐ฌ ๐Ÿ๐จ๐ซ ๐ญ๐จ๐ฉ ๐œ๐จ๐ฆ๐ฉ๐š๐ง๐ข๐ž๐ฌ ๐š๐ง๐ ๐ฌ๐ญ๐š๐ซ๐ญ๐ฎ๐ฉ๐ฌ ๐š๐ซ๐จ๐ฎ๐ง๐ ๐ญ๐ก๐ž ๐ ๐ฅ๐จ๐›๐ž โ˜‘๏ธ Under Armour โ˜‘๏ธ Snowflake โ˜‘๏ธ Estateza โ˜‘๏ธ SearchLook โ˜‘๏ธ Sparrowcharts ๐Ÿ’ก ๐–๐ก๐š๐ญ ๐œ๐š๐ง ๐ˆ ๐›๐ซ๐ข๐ง๐  ๐ญ๐จ ๐ฒ๐จ๐ฎ๐ซ ๐ญ๐š๐›๐ฅ๐ž? โ˜‘๏ธ Full Stack Development for robust and scalable web applications, including both front-end and back-end technologies โ˜‘๏ธ Custom Web and Application Development utilizing frameworks like Python, React, Django, React.js / Angular / Next.js / Nest / Nust / Golang and Node.js โ˜‘๏ธ Expertise in LLMs and ChatGPT integration to enhance application functionalities โ˜‘๏ธ Proficiency in RESTful APIs, GraphQL, and database management โ˜‘๏ธ Experience with cloud services like AWS, Azure, and Google Cloud for deployment and scaling โ˜‘๏ธ Strong problem-solving skills and ability to optimize user experiences and application performance ๐ŸŒŸ๐‡๐ž๐ซ๐ž'๐ฌ ๐ฐ๐ก๐š๐ญ ๐‚๐ฅ๐ข๐ž๐ง๐ญ๐ฌ ๐ก๐š๐ฏ๐ž ๐ญ๐จ ๐ฌ๐š๐ฒ ๐š๐›๐จ๐ฎ๐ญ ๐ฆ๐ž: ๐ŸŒŸ 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 ๐ŸŒŸ 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. ๐ŸŽฏ ๐ˆ ๐ฉ๐จ๐ฌ๐ฌ๐ž๐ฌ ๐ž๐ฑ๐ฉ๐ž๐ซ๐ญ๐ข๐ฌ๐ž ๐ข๐ง ๐ญ๐ก๐ž ๐Ÿ๐จ๐ฅ๐ฅ๐จ๐ฐ๐ข๐ง๐  ๐๐จ๐ฆ๐š๐ข๐ง๐ฌ โ˜‘๏ธ Full Stack Development: โ˜‘๏ธ Backend: โ˜‘๏ธ Python โ˜‘๏ธ Django โ˜‘๏ธ Flask โ˜‘๏ธ NodeJs, Express.js โ˜‘๏ธ Rest API, SOAP โ˜‘๏ธ Websocket โ˜‘๏ธ Third party integration โ˜‘๏ธ Frontend: โ˜‘๏ธ Html5, Css3, Bootstrap โ˜‘๏ธ Javascript โ˜‘๏ธ ReactJs, Angular โ˜‘๏ธ VueJs โ˜‘๏ธ NextJs, NuxtJs โ˜‘๏ธ Ajax, JSON, XML, XHTML, SVG, Canvas โ˜‘๏ธ API integration, OpenAI API โ˜‘๏ธ DevOps: โ˜‘๏ธ CI/CD Pipelines โ˜‘๏ธ IaC โ˜‘๏ธ Docker โ˜‘๏ธ Kubernetes / Terraform โ˜‘๏ธ Elasticsearch โ˜‘๏ธ Cloud Computing (Azure, AWS, Google Cloud) โ˜‘๏ธ Version Control (Git, GitHub) โ˜‘๏ธ Containerization + Orchestration (Docker, Kubernetes) โ˜‘๏ธ Spring Boot / Java, Microservices Architecture โ˜‘๏ธ Real-time / Streaming / Event-driven architectures โ˜‘๏ธ Session Recordings / Session Replays โ˜‘๏ธ GraphQL / gRPC โ˜‘๏ธ Kafka / Redpanda (real-time streaming) โ˜‘๏ธ Generative Artificial Intelligence (GenAI) โ˜‘๏ธ Large Language Models (LLMs) โ˜‘๏ธ Natural Language Processing (NLP) โ˜‘๏ธ ChatBots and Virtual Assistants โ˜‘๏ธ Text to Image Modelling โ˜‘๏ธ Vector Databases โ˜‘๏ธ Retrieval-Augmented Generation (RAG) โ˜‘๏ธ ChatGPT โ˜‘๏ธ OpenAI โ˜‘๏ธ AI/ML (Artificial Intelligence + Machine Learning) โ˜‘๏ธ Multimodal AI / NLP โ˜‘๏ธ Agentic AI / Autonomous Agents โ˜‘๏ธ โ€œVibe Codingโ€ / AI-first / prompt-driven dev workflows โ˜‘๏ธ Explainable AI / Ethical, Sustainable AI โ˜‘๏ธ Edge AI / On-device / Federated Learning โ˜‘๏ธ Web Scraping โ˜‘๏ธ Data Extraction โ˜‘๏ธ Data Scraping โ˜‘๏ธ Scrapy โ˜‘๏ธ Selenium โ˜‘๏ธ Beautiful Soup โ˜‘๏ธ Requests โ˜‘๏ธ Deployment and scheduling the scraping scripts on server โ˜‘๏ธ PostHog / Mixpanel / Amplitude / Segment (Twilio Segment) โ˜‘๏ธ OpenTelemetry (Datadog / Grafana / Sentry โ˜‘๏ธ LaunchDarkly / GrowthBook / VWO / Optimizely / Klaviyo โ˜‘๏ธ Airbyte / Fivetran / DBT โ˜‘๏ธ Auth0 / Clerk / SuperTokens / Google Auth โ˜‘๏ธ Stripe / Paddle โ˜‘๏ธ Plaid AI + Analytics Integrations โ˜‘๏ธ LangSmith / LangFuse โ€“ Observability and evaluation layer for LLM apps. โ˜‘๏ธ Weaviate / Pinecone / Qdrant โ€“ Vector DBs for AI features with analytics hooks. โ˜‘๏ธ Whylabs / Arize AI โ€“ 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: โšก Fast MVP Development (AI-Powered) โœ… โšก AI Powered SAAS Applications โœ… โšก AI Agent RAG Systems | AI Chatbots โœ… โšก Open AI API Integrations / LLM โœ… โšก Full stack Development (AI/ML, Django, React) โœ… โšก AI Workflows Automation โšก Voice AI tools Thank you for visiting my profile. Looking forward to working with you! I will ๐Ÿ’ฒREFUND ๐Ÿ’ฒ, 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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Don't just take our word for it

REST API Developers Hiring FAQs

If youโ€™re new to APIs (application programming interfaces), it wonโ€™t be long until you come across REST. Short for REpresentational State Transfer, REST is an architectural style for facilitating communication between computer systems across a network.

What is REST?

REST is an architectural style that describes how distributed applications should interact with one another. But to truly understand what REST is, you first need to understand two concepts:

  1. Resources, which are like the nouns of the webโ€”they describe the โ€œthingsโ€ a client might want to pull from a server (e.g., the documents and files that make up a web page).
  2. HTTP verbs, which are the verbs of the webโ€”they describe the โ€œactionsโ€ you can take on a resource, such as GET, POST, PUT, and DELETE.

 REST provides a set of architectural constraints that, when applied as a whole, emphasizes scalability of component interactions, generality of interfaces, independent deployment of components, and intermediary components to reduce interaction latency, enforce security, and encapsulate legacy systems.

REST API developers use the REST architectural style to develop APIs that facilitate communication between computer systems across a network. REST stands for REpresentational State Transfer.

How do you hire a REST API developer?

You can source REST API developers talent on Upwork by following these three steps:

  • Write a project description. Youโ€™ll want to determine your scope of work and the skills and requirements you are looking for in a REST API developers.
  • Post it on Upwork. Once youโ€™ve written a project description, post it to Upwork. Simply follow the prompts to help you input the information you collected to scope out your project.
  • Shortlist and interview REST API Developers. Once the proposals start coming in, create a shortlist of the professionals you want to interview. 

Of these three steps, your project description is where you will determine your scope of work and the specific type of REST API developers you need to complete your project.

How much does it cost to hire a REST API developer?

Rates can vary due to many factors, including expertise and experience, location, and market conditions.

  • An experienced REST API developers may command higher fees but also work faster, have more-specialized areas of expertise, and deliver higher-quality work.
  • A contractor who is still in the process of building a client base may price their REST API developers services more competitively.

Which one is right for you will depend on the specifics of your project. 

How do you write a REST API developer job post?

Your job post is your chance to describe your project scope, budget, and talent needs. Although you donโ€™t need a full job description as you would when hiring an employee, aim to provide enough detail for a contractor to know if theyโ€™re the right fit for the project.

Job post title

Create a simple title that describes exactly what youโ€™re looking for. The idea is to target the keywords that your ideal candidate is likely to type into a job search bar to find your project. Here are some sample REST API developers job post titles:

  • Need a software engineer experienced in developing RESTful APIs
  • Seeking REST API developer for WordPress website
  • REST API developers needed to develop API software integrations

Project description

An effective REST API developer job post should include: 

  • Scope of work: From programming to cloud computing, list all the deliverables youโ€™ll need. 
  • Project length: Your job post should indicate whether this is a smaller or larger project. 
  • Background: If you prefer experience with certain industries, software, or coding languages, mention this here. 
  • Budget: Set a budget and note your preference for hourly rates vs. fixed-price contracts.

REST API developer job responsibilities

Here are some examples of REST API developers job responsibilities:

  • Develop RESTful, stateless, and layered applications that make client and server interoperable
  • Manage repetitive data transfers with caching
  • Create a uniform interface between components

REST API developer job requirements and qualifications

Be sure to include any requirements and qualifications youโ€™re looking for in a REST API developers. Here are some examples:

  • Proficiency in PHP, NodeJS, Python, Java, cURL, and/or C#
  • Knowledge of data and servery security best practices
  • Understanding of overall orchestration paradigms