I am a highly-skilled Python developer with more than 10 years of proven experience with Python and 8+ years of working with web development. I have built many web and mobile application backends of various complexity levels. Likewise, I have worked with individual entrepreneurs and with organizations in distributed teams of 25 people from all over the world. I have experience building SaaS and Enterprise projects in different niches. Like: ad-tech, healthcare, fintech and real estate. I often use these libraries during development: - Python: Django, Django Rest Framework, FastAPI, Flask, Pyramid, Asyncio, Aiottp, Tornado, Sqlalchemy, Graphene, Pydantic, Uwsgi, Django ORM, Bottle, Celery, Airflow, Dramatiq, Django channels, Sanic, Twisted. - Server-side: MySQL, PostgreSQL, MongoDB, Redis, Kafka, RabbitMQ, ELK, ElasticSearch, AWS, AWS Lambda, AWS S3, Azure, GCP, REST API, GraphQL, Microservices, Docker, Docker compose, Kubernetes, AWS EC2, WebSockets, Nginx, SSH, Third-party API, PubSub, Debug, Facebook API, Google API, Twitter API, Outlook API, Vagrant, Nginx. - DevOps: AWS, Azure, GCP, Kubernetes, Docker, Docker compose, Prometheus, Grafana, Linux, UNIX, Jenkins, GitLab CI, Github Actions, Bitbucket pipelines, Terraform, Ansible, Bash, CI/CD, Load Balancing, Nginx, Apache. - BigData: Apache Spark, Apache Druid, Cassandra, DynamoDB, Clickhouse - I’m also proficient in JavaScript/NodeJS, Vue, Angular, and React. On Upwork, I hope to find challenging tasks to deepen and expand my server-side development skills, particularly Python. Also, I’m into DevOps engineering and am open to collaboration.

SUMMARY 9+ years experience. I build scalable AI systems and high-concurrency backends. Expert in GCP architecture, LangChain orchestration, and Go-based microservices. CORE COMPETENCIES • AI: Multi-agent workflows (LangChain), RAG, Vertex AI. • Cloud: GCP (Certified Architect), Docker, Terraform. • Backend: Go (Golang), Node.js (NestJS), Redis, BullMQ. • Data: PostgreSQL, pgvector, GORM. SELECTED WORK Agentic Content Pipeline • Automated video scenario generation and posting using multi-agent workflows. • Tech: Vertex AI, LangChain, Node.js, Redis. Maritime Routing System • Real-time vessel routing logic and crew management hub. • Tech: Go, PostgreSQL, GCP, Microservices. EdTech Matching (RAG) • Search-and-match system for tutors using RAG and vector search. • Tech: Vertex AI, PostgreSQL (pgvector). TECHNICAL STACK • AI: Vertex AI, LangChain, RAG, Agentic Workflows. • Backend/Infra: Go, Node.js, GCP, Docker, Terraform. • Database: PostgreSQL, MongoDB, Pinecone. OTHERS • 4 years as a Technical Founder (Arafat Solutions). • Based in Indonesia | US/EU Timezone flexible.

🎯 Top Rated Plus AI Engineer ✅ $200K+ Earned | 50 Jobs | 4,700+ Hours ✅ 100% Job Success Score ✅ AI Agents | RAG Systems | AWS AI | Full-Stack AI SaaS I build production-grade AI agents, RAG systems, LLM applications, AI chatbots, document intelligence pipelines, and AWS-based AI platforms using LangGraph, LangChain, OpenAI, AWS Bedrock, FastAPI, PostgreSQL/pgvector, Qdrant, OpenSearch, Next.js, and React. I help SaaS companies, startups, agencies, and enterprise teams turn AI ideas into reliable production systems, not just demos, prompt wrappers, or basic chatbots. 𝐖𝐇𝐀𝐓 𝐈 𝐁𝐔𝐈𝐋𝐃: ✓ AI Agents & Agentic Workflows LangGraph/LangChain agents with tool calling, memory, API integrations, human approval flows, structured outputs, and workflow automation. ✓ RAG Systems & Knowledge Assistants RAG over PDFs, Excel files, websites, internal docs, databases, CRMs, support tickets, and knowledge bases with vector search, hybrid retrieval, reranking, citations, and metadata filtering. ✓ AI Chatbots & Customer Support Agents AI chatbots for SaaS, e-commerce, healthcare, finance, education, and internal operations with retrieval, SQL/database lookup, intent classification, escalation flows, guardrails, and analytics. ✓ Document AI & Data Extraction OCR and structured extraction using AWS Textract, AWS Bedrock, OpenAI, S3, validation logic, custom schemas, and human review workflows. ✓ AWS AI / Cloud Architecture Scalable AI platforms using AWS Bedrock, SageMaker, Lambda, ECS/Fargate, EKS, Step Functions, S3, RDS/PostgreSQL, OpenSearch, DynamoDB, API Gateway, and Terraform. ✓ Full-Stack AI SaaS Development End-to-end AI products using FastAPI, Python, Node.js, Next.js, React, PostgreSQL, MongoDB, Redis, Docker, Kubernetes, Supabase, Stripe, and CI/CD. 𝐂𝐎𝐑𝐄 𝐒𝐓𝐀𝐂𝐊: ► AI / LLMs: OpenAI, GPT-4/4o, Claude, Gemini, AWS Bedrock, LLaMA, Mistral, LangGraph, LangChain, LlamaIndex ► RAG / Search: pgvector, Qdrant, Pinecone, ChromaDB, OpenSearch, Elasticsearch, hybrid search, reranking, citations ► Backend: Python, FastAPI, Django, Flask, Node.js, Express.js, NestJS ► Frontend: Next.js, React, TypeScript, TailwindCSS ► Cloud / DevOps: AWS, GCP, Azure, Docker, Kubernetes, ECS, EKS, Lambda, Step Functions, Terraform, CI/CD ► Databases: PostgreSQL, MongoDB, Redis, MySQL, DynamoDB, Neo4j, Memgraph ► Voice AI: Whisper, Deepgram, LiveKit, WebRTC, STT/TTS pipelines ► LLMOps: Langfuse, LangSmith, eval pipelines, latency monitoring, cost tracking, output validation 𝐁𝐄𝐒𝐓 𝐅𝐈𝐓 𝐏𝐑𝐎𝐉𝐄𝐂𝐓𝐒 I am a strong fit if you need: • A production RAG system, not a basic chatbot • An AI agent that uses tools, APIs, memory, and workflows • An AWS-based AI platform or document processing pipeline • A full-stack AI SaaS MVP with backend, frontend, database, and deployment • AI chatbot development with retrieval, guardrails, analytics, and escalation flows • LLM evaluation, citations, tracing, latency optimization, and production reliability Invite me to your project if you need a senior AI engineer who can own the architecture, backend, cloud deployment, and production reliability of your AI system.

I help startups and founders build AI-powered SaaS products, customer portals, and internal platforms using React, Next.js, Node.js, Ruby on Rails, and modern LLM technologies. Whether you're launching a new product, adding AI capabilities to an existing platform, or modernizing legacy software, I can help you take it from idea to production. Over the past 8+ years, I've worked with founders, startups, and growing companies to build SaaS applications, internal platforms, customer portals, and AI-powered products. I've been involved in everything from early-stage MVPs to mature applications serving thousands of users. My focus is always the same: building software that solves real business problems while keeping the codebase clean, maintainable, and easy to scale as the product grows. What I can help with: • AI-powered SaaS products • SaaS MVP development • AI chatbots and AI agents • OpenAI, Claude, and Gemini integrations • RAG applications and intelligent search • Customer portals and dashboards • Internal business tools • API integrations and workflow automation • Legacy application modernization • Application performance and scalability improvements Why clients work with me: ✔ 8+ years of software development experience ✔ 100+ projects delivered ✔ 100% Job Success on Upwork ✔ Top Rated Freelancer ✔ 5,000+ hours worked on Upwork ✔ Strong experience working directly with founders and product teams My core technologies include: Frontend: React.js, Next.js, TypeScript, JavaScript, Tailwind CSS Backend: Ruby on Rails, Node.js, Express.js, Python AI: OpenAI, Claude, Gemini, LangChain, AI Agents, RAG, Vector Search Database & Cloud: PostgreSQL, MongoDB, Redis, Supabase, Firebase, AWS, Docker, Vercel Some recent work includes: • Built AI-powered SaaS products from the ground up • Integrated LLMs into existing SaaS platforms • Modernized Ruby on Rails applications with React and Next.js • Developed customer-facing portals and internal business tools • Improved performance and scalability for growing products I also use modern development tools such as Cursor, Claude Code, and Codex to speed up delivery while maintaining high engineering standards and code quality. If you're looking for a developer who can understand both the technical and product side of your business, I'd be happy to discuss your project. 📩 Send an invitation, and let's discuss your project.

🔑 𝐀𝐬 𝐚𝐧 𝐞𝐱𝐩𝐞𝐫𝐭 𝐀𝐈 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫 & 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭, 𝐈 𝐛𝐮𝐢𝐥𝐝 𝐚𝐧𝐝 𝐝𝐞𝐩𝐥𝐨𝐲 𝐀𝐈 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐚𝐧𝐝 𝐚𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐭𝐡𝐚𝐭 𝐬𝐨𝐥𝐯𝐞 𝐜𝐨𝐦𝐩𝐥𝐞𝐱 𝐩𝐫𝐨𝐛𝐥𝐞𝐦𝐬, 𝐜𝐫𝐞𝐚𝐭𝐞 𝐯𝐚𝐥𝐮𝐞 𝐚𝐧𝐝 𝐢𝐦𝐩𝐫𝐨𝐯𝐞 𝐮𝐬𝐞𝐫 𝐞𝐱𝐩𝐞𝐫𝐢𝐞𝐧𝐜𝐞𝐬. 𝐊𝐞𝐲 𝐅𝐚𝐜𝐭𝐬: 🧑‍💻 8+ years of experience as a Artificial Intelligence Specialist and Full Stack Developer 🚀 50+ market-winning projects launched ⌛ Around 7500 hours on Upwork 🎯 Top-Rated on Upwork 𝐏𝐫𝐨𝐯𝐞𝐧 𝐂𝐥𝐢𝐞𝐧𝐭 𝐑𝐞𝐬𝐮𝐥𝐭𝐬: 𝐋𝐋𝐌 & 𝐃𝐚𝐭𝐚 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 - Dataflik – ML ranking on 40 years of sales data; ElasticSearch stack serving 200M+ rows for instant address search and lead scoring. - SearchLook – End-to-end background-check platform; 100+ scrapers, AWS pipelines, cron-scheduled waves, MTurk for human-in-the-loop tasks. - Estateza – 24/7 real-estate scrapers with hourly Slack reports, proxy rotation, rent estimator engine, two public/data-sale APIs, AWS→Linode migration with K8s + EL 𝐑𝐞𝐯𝐎𝐩𝐬 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧𝐬 - Huge (Recruitment) — Automated job postings & CV parsing pipeline; scraping + structured data workflows streamlined hiring process. - Haeussler Queue & OT — Token issuance, employee/room allocation + production workflow tracking, dashboards & to-dos. - Zoho CRM + Streamlit — Financial data migration to Zoho; Python/Streamlit dashboards for quick interactive insights. 𝐋𝐋𝐌 𝐂𝐡𝐚𝐭𝐛𝐨𝐭𝐬 & 𝐕𝐨𝐢𝐜𝐞 𝐀𝐠𝐞𝐧𝐭𝐬 - Vapi.ai Assistants – Inbound receptionist bots and outbound sales callers handling thousands of interactions; integrated with CRMs. - Voice Scheduling – Built AI rescheduler/confirmation bots integrated with Calendly and website APIs; reduced human agent workload drastically. - STSMS (Marine Ops) – Operator + customer portals with chat features; mobile offline app for Mooring Masters with push notifications. 𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤 & 𝐒𝐤𝐢𝐥𝐥𝐬: - 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 & 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Python (Django, Flask, FastAPI, Streamlit), JavaScript/TypeScript (React, Next.js, Angular, Node.js), GoLang for APIs, Solidity for blockchain. → Strong in full-stack app development, backend APIs, and smart contracts. - 𝐀𝐈 & 𝐋𝐋𝐌: OpenAI, LangChain, LangGraph, LlamaIndex, Hugging Face Transformers, TensorFlow, vector databases (Qdrant, Pinecone, Weaviate, ElasticSearch). → Skilled in building RAG pipelines, conversational AI, embeddings, fine-tuning and reinforcement learning. - 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 & 𝐕𝐨𝐢𝐜𝐞 𝐀𝐈: n8n, Make.com, Zapier, Vapi.ai, Twilio, Voiceflow, Dialogflow, Calendly API, Hunter.io, HeyReach. → Expert at workflow orchestration, AI voice assistants, CRM automations and lead qualification. - 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬 & 𝐁𝐢𝐠 𝐃𝐚𝐭𝐚: PostgreSQL, MySQL, MongoDB, ElasticSearch (200M+ rows), Redis, ELK stack (ElasticSearch, Logstash, Kibana). → Experienced in large-scale data engineering, search optimization and real-time analytics. - 𝐂𝐥𝐨𝐮𝐝 & 𝐃𝐞𝐯𝐎𝐩𝐬: AWS, GCP, Azure, Linode, Kubernetes, Docker, CI/CD pipelines, VPS clusters, monitoring systems. → Proficient in deploying, scaling, and maintaining high-availability cloud and DevOps infrastructures. - 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬 & 𝐀𝐏𝐈𝐬: CRMs (Zoho, HubSpot, Salesforce), ERPs, Shopify, WordPress, Stripe, PayPal, Google Workspace APIs, Social APIs (Facebook, Twitter/X, Instagram). → Strong in API design, SaaS integrations, and connecting business tools for end-to-end automation. - 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐞𝐝 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: Web scraping (Scrapy, Selenium, BeautifulSoup), royalty attribution engines, real-time trading bots, document/PDF Q&A, queue management, automated SEO/blog publishing. → Adept at domain-specific AI systems and industry-focused automation solutions. 🌟𝐇𝐞𝐫𝐞'𝐬 𝐰𝐡𝐚𝐭 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐡𝐚𝐯𝐞 𝐭𝐨 𝐬𝐚𝐲 𝐚𝐛𝐨𝐮𝐭 𝐦𝐞: 🌟 Usama 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. ✅ 𝐖𝐡𝐲 𝐖𝐨𝐫𝐤 𝐖𝐢𝐭𝐡 𝐌𝐞: → On-Time & On-Budget → 95% successful track record → Startup to Fortune 100 → Proven experience across all scales → End-to-End Ownership → From design to production deployment ❌ 𝗡𝗼𝘁 𝗮 𝗴𝗼𝗼𝗱 𝗳𝗶𝘁 𝗶𝗳: → Price is your only priority. → You want results in <2 weeks. → You work in gambling/adult industries. Looking forward to working with you!

An energetic and self-motivated Software Developer having 7 years of development experience with Agile projects & SPA applications. I have built high speed & scalable web and mobile applications for SaaS, Product base, B2B and B2C business models using TypeScript/JavaScript, Angular, Ionic, React and Node.js. I have great expertise in; - Design patterns, architecture designs and CI/CD processes - Tenacious technical problem solving skills - Good communication skills - 100% responsive designs using Illustrator, Photoshop, Figma, Html5/CSS3, SCSS, Bootstrap, Tailwind, PrimeNG and Material UI - Vanilla JavaScript development using HTML5/CSS3, Gulp - Angular development using CLI, Rxjs, Ngrx, Webpack, NPM, Jest, Karma, Jasmine, NPM - React development using react-create-app, MobX-State-Tree, Redux, WebPack - Native mobile app development using Ionic CLI, Capacitor, Cordova and Native APIs - API development using Node.js, ExpressJs, .Net Core, TypeORM and GraphQL - Socket based programming using Socket.IO - Automatic Deployments on Azure/AWS using Pipelines - Code management using Github, Gitlab, Azure and Bitbucket - Task management on Agile projects using JIRA, Trello and Azure - Extensive experience of working with version control, build tools, code-quality, testing tools and Docker Moreover, along with the vast exposure of SQL Server and PostgreSQL, I have hands-on experience with NoSQL databases like MongoDB, Firebase, Redis, SQLite and Elasticsearch. In addition, I have worked on various third party APIs integrations like Twillio, SendGrid, Facebook, Google, Sentry, RASA Chatbot and Stripe. Much of my experience comes from working for various clients, mainly from US, Canada, and Europe. I helped them developing solutions that can meet their business requirements. Always looking for interesting projects and will be happy to discuss your ideas and propose you the technical implementation for them.

Senior Full-Stack & AI Engineer | SaaS Architect 𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 & 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝘄𝗶𝘁𝗵 𝟭𝟬+ 𝘆𝗲𝗮𝗿𝘀 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗦𝗮𝗮𝗦 𝗮𝗻𝗱 𝗔𝗜 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀. 𝗘𝘅𝗽𝗲𝗿𝘁 𝗶𝗻 𝗢𝗽𝗲𝗻𝗔𝗜, 𝗚𝗣𝗧-𝟰, 𝗥𝗔𝗚, 𝗡𝗼𝗱𝗲.𝗷𝘀, 𝗝𝗮𝘃𝗮, 𝗔𝗪𝗦, 𝗮𝗻𝗱 𝗺𝘂𝗹𝘁𝗶-𝘁𝗲𝗻𝗮𝗻𝘁 𝗰𝗹𝗼𝘂𝗱 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲𝘀. --- I help startups and growing businesses 𝗱𝗲𝘀𝗶𝗴𝗻, 𝗯𝘂𝗶𝗹𝗱, 𝗮𝗻𝗱 𝘀𝗰𝗮𝗹𝗲 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆 𝗦𝗮𝗮𝗦 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺𝘀 𝗮𝗻𝗱 𝗔𝗜-𝗽𝗼𝘄𝗲𝗿𝗲𝗱 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀. I’m a 𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝗮𝗻𝗱 𝗦𝗮𝗮𝗦 𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁 with 𝟭𝟬+ 𝘆𝗲𝗮𝗿𝘀 𝗼𝗳 𝗵𝗮𝗻𝗱𝘀-𝗼𝗻 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 delivering high-quality software across logistics, fintech, ed-tech, and AI-driven products. I don’t just code features—I design 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝘁𝗵𝗮𝘁 𝘀𝗰𝗮𝗹𝗲, 𝘀𝘁𝗮𝘆 𝘀𝗲𝗰𝘂𝗿𝗲, 𝗮𝗻𝗱 𝘀𝘂𝗽𝗽𝗼𝗿𝘁 𝗿𝗲𝗮𝗹 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗴𝗿𝗼𝘄𝘁𝗵. I work end-to-end: 𝗮𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝘂𝗿𝗲, 𝗯𝗮𝗰𝗸𝗲𝗻𝗱, 𝗳𝗿𝗼𝗻𝘁𝗲𝗻𝗱, 𝗔𝗜 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻, 𝗰𝗹𝗼𝘂𝗱 𝗱𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁, 𝗮𝗻𝗱 𝗼𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻. --- 🤖 𝗔𝗜 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 & 𝗟𝗟𝗠 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 (𝗣𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗚𝗿𝗮𝗱𝗲) I actively build 𝗔𝗜-𝗳𝗶𝗿𝘀𝘁 𝗦𝗮𝗮𝗦 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀, not prototypes or demos. 𝗔𝗜 & 𝗟𝗟𝗠 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: • OpenAI (GPT-4, GPT-4o), Claude, Gemini • RAG (Retrieval-Augmented Generation) architectures • Vector databases: pgvector, Pinecone • AI agents, copilots, and automation workflows • Prompt engineering & AI cost optimization • Secure, scalable AI API integrations 𝗪𝗵𝗮𝘁 𝗜 𝗯𝘂𝗶𝗹𝗱 𝘄𝗶𝘁𝗵 𝗔𝗜: • LLM-powered SaaS features • Document AI (PDF ingestion, embeddings, semantic search, summarization) • Knowledge retrieval & decision-support systems • AI coaching, recommendation, and analytics engines • Usage-metered AI services for SaaS products All AI systems are 𝘀𝗲𝗰𝘂𝗿𝗲, 𝗼𝗯𝘀𝗲𝗿𝘃𝗮𝗯𝗹𝗲, 𝘀𝗰𝗮𝗹𝗮𝗯𝗹𝗲, 𝗮𝗻𝗱 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻-𝗿𝗲𝗮𝗱𝘆. --- 🎯 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 𝗬𝗼𝘂 𝗪𝗶𝘁𝗵 𝗦𝗮𝗮𝗦 & 𝗕𝗮𝗰𝗸𝗲𝗻𝗱 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 • Multi-tenant SaaS architecture • REST API design & development • Backend systems using Node.js and Java Spring Boot • Authentication, RBAC, subscriptions & billing • High-throughput, event-driven, async systems 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱 & 𝗠𝗼𝗯𝗶𝗹𝗲 • React, Next.js, Vue.js web applications • SaaS dashboards & admin panels • Android, Flutter, Ionic mobile apps 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 • AWS (Lambda, API Gateway, SQS, S3, ECS) • GCP & DigitalOcean • Serverless & cloud-native architecture • Docker & CI/CD pipelines • Production deployment, scaling & monitoring --- 🛠️ 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 • Java, Node.js, JavaScript, TypeScript, PHP • OpenAI, GPT-4, GPT-4o, RAG, pgvector, Pinecone, Elasticsearch • React, Next.js, Vue.js • PostgreSQL, MySQL, MongoDB, Firestore, Redis • Kafka, AWS SQS, SNS, RabbitMQ • AWS, GCP, DigitalOcean, Docker, CI/CD, Serverless ---

Your Magento store should be your strongest sales channel — not your biggest headache. I rescue broken Magento stores for a living — and I spoke about exactly that at Magento Meet Ukraine 2025. If your site loads slowly, your Magento 1 is overdue for migration, or your team is afraid to touch the codebase — you're losing revenue every day. I help eCommerce brands fix that. Track record: ✓ Top Rated Plus on Upwork, 100% Job Success Score ✓ $60K+ earned, 1,600+ hours, 38 completed projects ✓ Long-term partnerships: 500+ hours with a single client (ongoing) ✓ Magento Meet Ukraine 2025 speaker — "Magento 2 Rescue Guide" ✓ 5.0 ratings on Magento-specific projects What I specialize in: ▸ Magento 2 / Adobe Commerce development — from feature builds to deep customization on production stores ▸ Hyva theme migrations — modern frontend that loads 3–5x faster than Luma, without rebuilding your store ▸ Magento 1 → Magento 2 migrations — full data, SEO, and extension preservation ▸ Speed & Core Web Vitals optimization — page load under 1.5s, passing Google's thresholds ▸ ERP / CRM / payment integrations — ShipStation, NetSuite, custom APIs ▸ Production-grade server setup — secure, scalable, audit-ready I also work with Shopify for brands evaluating replatforming or running hybrid setups. How I work: I treat your store like a business asset, not a ticket queue. Before I write code, I ask why — because the wrong fix on a live store costs more than the right one delayed by a day. Most of my clients stay for 6+ months because I catch issues before they become incidents and explain trade-offs in plain language, not jargon. I'm probably not the right fit if: × You need someone to copy-paste themes without understanding the stack × You want the cheapest hourly rate on Upwork × You expect production changes without staging or testing If you're serious about your Magento store performing like the business depends on it — let's talk. Send me a message with what you're building or struggling with, and I'll respond within a few hours with honest input on whether I can help.

I build production AI systems — RAG pipelines, LLM agents, and the multi-tenant SaaS they run inside. 14+ years of engineering, now focused on shipping AI features that actually hold up in production, not demos. Recent work: - An AI-Powered Knowledge Assistant with a custom RAG pipeline on AWS — retrieval, embeddings, and grounded answers over a client's private document set. - EnergyArray — a multi-tenant SaaS platform now in production at Tier-1 North American utilities, with secure per-tenant data isolation, real-time ingestion, and AI-assisted features. Stack: Java/Spring, React, PostgreSQL, AWS. What I do for clients: - RAG systems — chunking, embeddings, vector search (OpenSearch/pgvector), evals, anti-hallucination grounding - LLM agents — tool use, function calling, guardrails (OpenAI API or AWS Bedrock, your choice) - Multi-tenant SaaS architecture — data isolation, per-tenant config, billing telemetry - AWS-native delivery — ECS, Lambda, S3, OpenSearch; data stays in your VPC when compliance demands it How I work: - Fixed-scope feasibility audits when you need to know which AI use case will pay off before committing a quarter - Multi-week build engagements with a small senior team - Direct, written, no-fluff communication. I run discovery before I estimate. Best fit: teams adding AI to a real product — SaaS companies, data-heavy startups, and B2B vendors who need it to work in production, not just look good in a pitch. If you're building RAG or agentic AI on AWS and want it done right the first time, send a message — happy to do a 20-minute call.

𝗦𝗲𝗻𝗶𝗼𝗿 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 & 𝗔𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 with 𝟴+ 𝘆𝗲𝗮𝗿𝘀 building fast, secure, scalable web apps in 𝗣𝘆𝘁𝗵𝗼𝗻, 𝗗𝗷𝗮𝗻𝗴𝗼, 𝗥𝗲𝗮𝗰𝘁, 𝗡𝗼𝗱𝗲.𝗷𝘀 & 𝗥𝘂𝗯𝘆 𝗼𝗻 𝗥𝗮𝗶𝗹𝘀, now with 𝗔𝗜/𝗟𝗟𝗠 integrations. I turn complex requirements into clean, production-ready products that ship on time. Whether you need a brand-new MVP, a complex API, an AI-powered app, a high-volume web scraper, or a senior hand to rescue and scale an existing codebase, I deliver work that's reliable, well-tested, and built to grow with your business. ⭐ 𝗪𝗵𝗮𝘁 𝗜 𝗰𝗮𝗻 𝗱𝗼 𝗳𝗼𝗿 𝘆𝗼𝘂: ✅ Build full-stack web apps from scratch (frontend + backend + database) ✅ Design robust REST & GraphQL APIs ✅ Build 𝗔𝗜 𝗳𝗲𝗮𝘁𝘂𝗿𝗲𝘀: chatbots, RAG, semantic search, AI agents & automations ✅ Large-scale 𝗪𝗲𝗯 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 & automation (data extraction, bots, pipelines) ✅ Integrate payments, auth, email/SMS, and third-party services ✅ Optimize performance, fix bugs, and refactor legacy code ✅ Deploy, containerize & manage cloud infrastructure (AWS, Docker, CI/CD) 🤖 𝗔𝗜 & 𝗟𝗟𝗠 OpenAI (GPT-4o), Anthropic Claude, Google Gemini, LangChain, LlamaIndex, RAG (Retrieval-Augmented Generation), AI Agents, Hugging Face, vector databases (Pinecone, Weaviate, pgvector, Chroma), embeddings, prompt engineering, OpenAI & Whisper APIs, fine-tuning 🛠️ 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 🔹 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: Python, Django, Django REST Framework, Flask, FastAPI, Node.js, Express.js, Nest.js, Fastify, Ruby on Rails, RESTful APIs, Apollo Server 🔹 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: React, Next.js, Vue, Angular, Redux, Redux-Saga, Redux-Thunk, Vuex, Vuetify, RxJS, Context API, Gatsby, TypeScript, JavaScript, React MUI, TailwindCSS, Bootstrap, SASS/LESS 🔹 𝗗𝗮𝘁𝗮𝗯𝗮𝘀𝗲𝘀: PostgreSQL, MySQL, MongoDB, Firebase, GraphQL, ElasticSearch 🔹 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀: AWS (EC2, S3, RDS, Lambda, DynamoDB, Cognito, CloudFront, CI/CD), Docker, Kubernetes, Jenkins, Google Cloud, Azure, DigitalOcean, Git 🔹 𝗪𝗲𝗯 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 & 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻: Scrapy, Selenium, Puppeteer, Playwright 🔹 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀: Stripe, PayPal, Twilio, SendGrid 🔹 𝗠𝗶𝗰𝗿𝗼𝘀𝗲𝗿𝘃𝗶𝗰𝗲𝘀 & 𝗥𝗲𝗮𝗹-𝗧𝗶𝗺𝗲: Kafka, RabbitMQ, gRPC, Socket .io, WebRTC 🔹 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Jest, Enzyme, Cypress, Pytest 💡 𝗪𝗵𝘆 𝗰𝗹𝗶𝗲𝗻𝘁𝘀 𝗵𝗶𝗿𝗲 𝗺𝗲: ✔️ Senior-level code quality focused on performance, security & scalability ✔️ Clear, proactive communication and consistent updates ✔️ Deadlines respected, scope handled honestly, no surprises ✔️ Long-term partner mindset, not just a quick fix I treat every project like it's my own product. If you want a dependable developer who writes clean code, communicates clearly, and ships on time, let's talk. 📩 Send me a message with a few details about your project and I'll reply with how I'd approach it. 𝗕𝗲𝘀𝘁 𝗥𝗲𝗴𝗮𝗿𝗱𝘀, Abdul Raheel Senior Full Stack & AI Developer | Python · Django · React · Node.js · LLM/AI | 8+ Years #FullStackDeveloper #Python #PythonDeveloper #Django #DjangoREST #RubyOnRails #NodeJS #ReactJS #NextJS #FastAPI #Flask #TypeScript #WebDevelopment #WebDeveloper #APIDevelopment #RESTAPI #GraphQL #AI #LLM #OpenAI #LangChain #RAG #AIChatbot #AIAutomation #WebScraping #Scrapy #Selenium #PostgreSQL #AWS #Docker