Hire the Best Backend Rest API Freelancers
in Pakistan

𝗕𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝗮 𝗯𝗮𝗰𝗸𝗲𝗻𝗱 𝘁𝗵𝗮𝘁 𝗵𝗼𝗹𝗱𝘀 𝘂𝗽 𝗶𝗻 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻 𝗶𝘀 𝗵𝗮𝗿𝗱𝗲𝗿 𝘁𝗵𝗮𝗻 𝗶𝘁 𝗹𝗼𝗼𝗸𝘀. 𝗜 𝗱𝗼 𝗶𝘁 𝗲𝘃𝗲𝗿𝘆 𝗱𝗮𝘆. 𝗜 𝗯𝘂𝗶𝗹𝗱 𝗣𝘆𝘁𝗵𝗼𝗻 𝗯𝗮𝗰𝗸𝗲𝗻𝗱 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝗮𝗻𝗱 𝗔𝗜-𝗲𝗻𝗮𝗯𝗹𝗲𝗱 𝗦𝗮𝗮𝗦 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 designed for real production use - not demos or short-lived prototypes. My work covers the complete backend layer: application architecture, FastAPI and Django APIs, AI model integrations, database design, third-party services, serverless workflows, and deployment. Whether you are building a new product, converting an MVP into a production-ready platform, or improving an existing backend, I focus on systems that are secure, maintainable, reliable, and built to scale without a full rewrite every six months. 𝗪𝗛𝗔𝗧 𝗜 𝗕𝗨𝗜𝗟𝗗 𝗣𝘆𝘁𝗵𝗼𝗻 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗦𝘆𝘀𝘁𝗲𝗺𝘀 Django, FastAPI, and Flask backends covering REST APIs, GraphQL, microservices, and serverless applications using AWS Lambda and API Gateway. Clean architecture, proper database design with PostgreSQL, MongoDB, and Redis, and CI/CD pipelines that make deployments reliable instead of stressful. 𝗔𝗜-𝗣𝗼𝘄𝗲𝗿𝗲𝗱 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀 AI model integrations, RAG pipelines, LLM-powered features, and automation workflows built directly into backend systems using LangChain, OpenAI, and vector databases to connect AI capabilities with real business data. 𝗦𝗮𝗮𝗦 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 & 𝗣𝗿𝗼𝗱𝘂𝗰𝘁 𝗔𝗣𝗜𝘀 Production-ready SaaS backends with multi-tenant architecture, subscription systems, third-party integrations, and the infrastructure to handle real users at real scale. 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻 & 𝗥𝗲𝗳𝗮𝗰𝘁𝗼𝗿𝗶𝗻𝗴 Slow APIs, unreliable systems, and backends that were built for an MVP but never upgraded. I audit, restructure, and rebuild what is not working without disrupting what already is. 𝗠𝗬 𝗘𝗡𝗚𝗜𝗡𝗘𝗘𝗥𝗜𝗡𝗚 𝗔𝗣𝗣𝗥𝗢𝗔𝗖𝗛 I begin by understanding the product workflow, users, data requirements, integrations, and expected traffic before touching a line of code. From there, I define a practical architecture, build modular services, structure databases for performance, and document everything for future development and handoff. The goal is not to overengineer. It is to build the right foundation for the current stage while keeping future growth manageable. 𝗪𝗛𝗘𝗡 𝗜'𝗠 𝗔 𝗚𝗢𝗢𝗗 𝗙𝗜𝗧 If you need a Python backend for a SaaS or AI product, an MVP that is ready for production, APIs that are faster and easier to maintain, AI capabilities connected to real business data, AWS deployment or serverless architecture, or an existing backend that needs restructuring or optimization, we will likely be a good fit. 𝗧𝗘𝗖𝗛𝗡𝗢𝗟𝗢𝗚𝗬 𝗦𝗧𝗔𝗖𝗞 Python · Django · FastAPI · Flask · REST APIs · GraphQL · PostgreSQL · MySQL · MongoDB · Redis · AWS EC2 · Lambda · S3 · RDS · API Gateway · Docker · Kubernetes · GitHub Actions · GitLab CI · LangChain · OpenAI API If you are building or improving a Python backend or AI-powered SaaS, send me a brief overview of your product, current stack, and the main challenge you are facing. I'll tell you exactly how I would approach it. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 AI Engineer, Backend Developer, Python Developer, FastAPI Developer, Django Developer, Flask Developer, SaaS Development, Backend Development, API Development, REST API, GraphQL, AI Integration, API Integration, Microservices, PostgreSQL, MongoDB, Redis, AWS, Serverless Architecture, Docker, Kubernetes, CI/CD, Database Development, and Cloud Deployment

I help startups and enterprises design, modernize, and scale Java Spring Boot applications with a focus on Microservices, Cloud, Enterprise Integrations, and AI-accelerated development (Claude Code, Cursor & Codex). 🏆 Top Rated Plus Freelancer ⭐ 100% Job Success 💰 $80K+ Earned ⏱️ 3,300+ Hours Worked 🚀 Expertise ✅ Java & Spring Boot Development ✅ REST APIs, Microservices & Spring Cloud ✅ Java 21 Migration & Legacy Application Modernization ✅ Cloud-Native Architecture & Migration (AWS & Microsoft Azure) ✅ Docker, CI/CD & DevOps ✅ Apache Kafka, RabbitMQ & Redis ✅ NetSuite, QuickBooks Online (QBO) & Third-Party API Integrations ✅ AI-Accelerated Development (Claude Code, Cursor & Codex) ✅ Performance Optimization & Database Tuning ✅ PostgreSQL • MySQL • MongoDB 💡 Recent Achievements 🚀 Migrated enterprise applications to Java 21 while maintaining production stability. ☁️ Led infrastructure migration from Virtual Machines to Microsoft Azure. ⚙️ Designed and delivered scalable Spring Boot Microservices for enterprise applications. 🔗 Integrated NetSuite, QuickBooks Online (QBO), and multiple third-party APIs. ⚡ Improved API response times by 60% through backend optimization. 💰 Reduced infrastructure costs by 50% by modernizing a monolithic application into microservices. 🤝 Why Work With Me? ✔ Clean, maintainable, production-ready code ✔ Strong communication and proactive collaboration ✔ Enterprise-grade architecture and scalable solutions ✔ Reliable delivery with a focus on long-term maintainability ✔ Modern development workflow using Claude Code and Cursor to accelerate delivery while maintaining high code quality Let's discuss your project and build a solution that scales with your business.

Top Rated Plus Python Engineer helping startups build AI agents, backend APIs, workflow automation, and large-scale data extraction systems. My work focuses on building production-ready solutions using Python, OpenAI, FastAPI, browser automation, and scalable scraping pipelines, with experience across AI agents, workflow automation, APIs, and large-scale data extraction. What I can help you with: ✔ AI Agents & OpenAI Integrations ✔ Workflow Automation & Process Optimization ✔ Web Scraping (Playwright, Selenium, dynamic sites, anti-bot handling) ✔ FastAPI Backend Development & API Integrations ✔ RAG Systems, AI Chatbots & LangChain/LangGraph Workflows ✔ Data Extraction Pipelines & Structured Outputs (CSV, JSON, DB) ✔ Browser Automation & Bot Development ✔ Cloud-based Automation & Deployment (AWS, Docker) ✔ Custom Python Scripts & Business Automation Recent work includes: • Built AI-powered workflow systems with automated document processing and response generation • Developed multi-agent architectures and RAG pipelines for intelligent search and retrieval • Created scraping infrastructures handling dynamic websites and structured large-scale datasets • Built trading automation systems, Chrome extensions, and real-time integrations • Developed backend APIs and automation pipelines for SaaS products I prioritize clean architecture, maintainable code, reliability, and solutions that work in production rather than prototypes that fail under scale. Whether you need an AI workflow, automation pipeline, scraper, backend API, or end-to-end Python solution, I focus on delivering systems that save time and support growth. Let’s discuss your project.

I build complete SaaS products — from database to API to web app to mobile app — and I integrate AI where it creates real value. If you have an idea for a SaaS, a web platform, or a mobile app, I can take it from whiteboard to live product without you needing to manage multiple developers. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT I BUILD ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚙️ BACKEND & APIs (Python) Django · Django REST Framework · FastAPI Celery · Redis · WebSockets · OAuth2 · JWT PostgreSQL · MySQL · MongoDB · Firebase Stripe & payment integrations · third-party APIs ⚛️ FRONTEND (JavaScript) React.js · Next.js · Vue.js · Nuxt.js TypeScript · Tailwind CSS · Material UI Redux · Zustand · React Query Responsive, pixel-perfect UIs 📱 MOBILE React Native (iOS & Android) Expo & bare workflow Push notifications · offline support App Store & Play Store deployment 🤖 AI & MACHINE LEARNING LLM integration — OpenAI, Claude, Gemini RAG pipelines — LangChain, LlamaIndex Vector databases — Pinecone, Weaviate, ChromaDB Computer Vision — PyTorch, TensorFlow, OpenCV, YOLO NLP — BERT, fine-tuning, text classification AI Agents & workflow automation ☁️ DEVOPS & DEPLOYMENT AWS · GCP · Azure · DigitalOcean · Railway · Vercel Docker · Nginx · CI/CD (GitHub Actions) Domain, SSL, production setup — fully live product ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ TYPES OF PROJECTS I DELIVER ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✦ SaaS Platforms Multi-tenant architecture, subscription billing (Stripe), role-based access, dashboards, admin panels ✦ AI-Powered Web Apps Chatbots trained on your data, document Q&A systems, AI content tools, automation pipelines ✦ Mobile Apps (iOS & Android) React Native apps with Django/FastAPI backend, real-time features, third-party integrations ✦ REST & GraphQL APIs Scalable, documented, tested APIs that your frontend or mobile team can build on ✦ MVPs & Startups Fast, clean MVP in 4–8 weeks so you can validate and raise — built to scale when you need to ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ TECH STACK AT A GLANCE ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Backend → Python, Django, FastAPI, Node.js, Express Frontend → React, Next.js, Vue, Nuxt, TypeScript Mobile → React Native, Expo AI/ML → OpenAI, LangChain, PyTorch, TensorFlow, OpenCV Database → PostgreSQL, MongoDB, MySQL, Redis, Firebase Cloud → AWS, GCP, Docker, Nginx, GitHub Actions ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WORKING WITH ME ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ✔ US EST mornings & full EU business hours available ✔ Daily updates — you always know the status ✔ Clean, documented, maintainable code ✔ Agile process — Jira, Linear, Notion, Slack, GitHub ✔ I handle deployment — you get a live product You bring the idea. I build the product. Let's talk.

𝐖𝐡𝐲 m𝐞? • Exceptional 5.0⭐ client feedback • 100+ happy clients with a 100% Job Success Score • 8+ years of hands-on software development experience I’m a Senior Full-Stack Developer specializing in Python, Django, FastAPI, and React. I help startups and growing businesses build reliable, high-performance platforms from scratch — from SaaS products and internal tools to large-scale data scraping and automation systems. My focus is on clean architecture, scalable backend systems, and data-driven solutions that support real business growth. 𝐖𝐡𝐚𝐭 𝐈 𝐜𝐚𝐧 𝐡𝐞𝐥𝐩 𝐲𝐨𝐮 𝐛𝐮𝐢𝐥𝐝: • SaaS platforms and scalable web applications • Custom dashboards and admin panels • REST APIs and microservices architecture • AI-powered and data-driven applications • Large-scale web scraping systems • Automated data extraction pipelines • ETL pipelines and data processing workflows • Third-party API integrations • Data automation and reporting systems • High-performance backend architectures My core tech stack includes Python, Django, FastAPI, React, Scrapy, Selenium, PostgreSQL, MongoDB, Redis, RabbitMQ, AWS, and modern cloud infrastructure. I have extensive experience building data pipelines, scraping large datasets, and developing scalable backend systems that power complex web applications. If you’re looking for a developer who can build scalable products, automate data workflows, and deliver reliable software solutions, I’d be happy to discuss your project. ⚡ 𝐁𝐎𝐍𝐔𝐒 𝐏𝐀𝐂𝐊𝐀𝐆𝐄: As the Founder & CEO of Flicken, I’ve helped over 100 clients navigate complex technical challenges while balancing speed, scalability, and cost-effectiveness. Having a team of engineers behind me means clients get the best of both worlds, the flexibility of working with a freelancer and the reliability of a full development team when needed. Flexible engagement options based on your project needs: 🔹 Staff Augmentation Need extra hands on your project or a specialized developer for a specific period? Get an experienced developer embedded into your existing team to ensure smooth collaboration and faster development velocity. 🔹 Turnkey Project Looking for a fully managed, end-to-end development solution? From architecture and development to deployment, I can handle the entire process, delivering a market-ready product through a structured, milestone-based approach.

🥇 Top Rated AI Backend Engineer | Java | Spring Boot | OpenAI | AWS | 100% Job Success I help startups and businesses build scalable backend systems and integrate AI capabilities into their existing applications. With 6+ years of experience building production-grade Java applications, microservices, and cloud solutions, I specialize in creating reliable backend architectures and AI-powered features using Java, Spring Boot, OpenAI, Spring AI, Kafka, and AWS. I work with companies that need to: Add AI features to existing software Build AI assistants and chatbots Create document intelligence systems Modernize Java applications Design scalable backend architectures 🤖 AI & LLM Solutions OpenAI / ChatGPT API Integration Spring AI AI Chatbots & Assistants AI Agents RAG (Retrieval-Augmented Generation) Document Q&A Systems Embeddings & Vector Search Semantic Search AI Workflow Automation Streaming AI Responses ☕ Backend Engineering Java & Kotlin Spring Boot Spring Security Spring Cloud Microservices Architecture REST APIs Kafka & RabbitMQ Database Design & Optimization ☁️ Cloud & DevOps AWS (EC2, ECS, Lambda, S3) Docker Kubernetes CI/CD Pipelines Production Deployment ⭐ Why Clients Work With Me ✔ Top Rated Freelancer on Upwork ✔ 100% Job Success Score ✔ 6+ years of backend engineering experience ✔ Fast communication and reliable delivery ✔ Experience working with clients across the USA, Canada, UAE, Romania, and India ✔ Focus on clean, maintainable, production-ready solutions ⭐ Client Feedback "Fantastic communication. Very fast work. He completed the job on time and addressed every issue along the way. Absolutely a great person to work with." — Josh, USA "Ahmed is a good professional. We had great conversations and worked together to fix the issue." — Dragos, Romania 🛠 Services I Offer AI Integration for Existing Applications OpenAI API Development AI Chatbot Development RAG Application Development Java/Spring Boot Backend Development Microservices Architecture REST API Development Kafka Event-Driven Systems AWS Cloud Deployment Legacy Application Modernization Backend Architecture Consulting If you need an experienced engineer to build a scalable backend or bring AI capabilities into your product, I’d be happy to discuss your project.