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M.Mansoor
@mansoor7196
AI and Full Stack Engineer, AI Chatbots, LLM Apps, Java Spring Boot, Web Apps
Pakistan
English, Urdu
About me
AI is at the heart of what I build. I create AI agents, RAG chatbots and LLM apps (OpenAI, Gemini, LangChain) that let businesses chat with their own data, plus the web apps, custom software and SaaS backends around them.
A major bank and multinational FMCG brands trust my code in production. I ship fast using modern AI coding tools.
Stack: Java Spring Boot, Python FastAPI, Node, React, Next.js, Postgres, Qdrant, Docker, AWS.
5.0 rated, 1-hour response. Tell me your idea and I'll turn it into a clear plan, price and timeline.
Skills
M.Mansoor
Offline •
Average response time: 1 hour
See my services
Full Stack Web Applications
I will build java spring boot rest api and microservices backend
AI Chatbot Development
I will build a custom ai agent, rag chatbot, or document QA system with langchain
Portfolio
Work experience
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Full Stack Developer
Fiverr • Freelance
Apr 2020 - Present • 6 yrs 4 mos
• Building web apps, custom software and AI chatbots for clients worldwide. • Delivered Java Spring Boot and Python FastAPI backends, React and Vue frontends, REST APIs and chatbot integrations. • 5.0 rated with on-time delivery and clear, honest communication.
Self-employed • 1 yr 9 mos
Software Engineer / Team Lead
Oct 2025 - Jun 2026 • 8 mos
• Led backend and frontend teams as Team Lead: architecture decisions, task assignment, code reviews, client requirements and sprint planning. • Built a RAG-based semantic search platform using Java Spring Boot, Python FastAPI, Qdrant vector database and Hugging Face embeddings, supporting both semantic and keyword search. • Delivered a multi-tenant event management SaaS platform and an automated job-application platform. • Packaged applications with Docker and deployed them to production.
Java Developer
Sep 2024 - Oct 2025 • 1 yr 1 mo
• Moved a legacy Java EE product to Spring Boot and split it into microservices using MySQL and MongoDB. • Redesigned the product as a multi-tenant SaaS for multinational FMCG and pharmaceutical clients across Africa and Pakistan. • Added Apache Kafka for real-time messaging between services and Camunda BPM/BPMN to automate business processes. • Built a Rate Verification System and an Attendance Management System from scratch using Spring Boot.
2 Reviews
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Rating Breakdown
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- Quality of delivery
- Value of delivery
1-2 out of 2 Reviews
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w4webs
Pakistan
Great experience! Mansoor has a deep understanding of Java and architecture and resolved all the bugs I was facing. They delivered high-quality code well within the agreed budget and communicated proactively throughout the process.
Seller's Response
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shah921
Australia
Helpful?
