ABOUT
Hi, I’m Mahadi Hassan.
Delivered production systems across the USA, UAE, and Bangladesh. Active open-source maintainer with packages shipped to PyPI.
Based in Dhaka, Bangladesh · 6 years of production backend · Open to AI engineering roles
SKILLS
LLM orchestrationRAGLangChainChromaDBPrompt eng + evalPythonFastAPIFlaskDjangoTypeScriptDockerAWSPostgresRedis
EXPERIENCE
Backend Engineer (AI Integration) — CashlessAI, London, UK
- Own end-to-end integration of AI/LLM features into a multi-tenant Django backend serving CashlessAI's partner businesses.
- Built a multi-provider LLM orchestration layer and implemented per-tenant model fine-tuning.
- Built and maintain an internal AI evaluation harness to keep model output quality measurable and stable.
Senior Backend Engineer — CosmosID, Maryland, USA
- Architected and scaled backend APIs for a HealthTech genomics platform, supporting high-throughput DNA sequencing data processing on AWS/Docker.
- Added comprehensive unit and integration testing, reducing post-release bugs by 40%.
- Managed Linux Debian servers and scalable Docker deployments on AWS (S3), sustaining 99.9% uptime.
Backend Engineer (AI Integration) — Byte Bridge IT Solutions, Dubai, UAE
- Owned end-to-end integration of LLM-based search into production backend services, powered by embeddings and vector retrieval.
- Scaled high-traffic REST and GraphQL APIs to absorb a 40% traffic surge, sustaining thousands of requests/sec under load.
- Enhanced Redis caching strategies, improving response times by 30%; streamlined Docker/Linux/AWS deployment.
Backend Software Engineer — RBS Tech Limited, Dhaka, BD
- Led a 7-engineer backend squad delivering real-time DRF + WebSocket APIs, lifting reliability and performance across the platform.
- Optimized PostgreSQL with PGBouncer and Redis caching, cutting data-retrieval time by 50%.
- Applied GraphQL (Graphene-Django), reducing API latency by 35%.
Full Stack Developer — Ghorami Technology, Dhaka, BD
- Built secure DRF backend APIs, improving transaction handling and security by 40%; implemented CI/CD, reducing downtime by 25%.
- Designed "Easy Sell," a Windows (WPF/WinForms + SQL Server) application.
Web Application Developer — Backdoor Pvt Ltd, Dhaka, BD
- Delivered backend security and UI/UX improvements for high-impact apps including Shurokha and Response Police (Bangladesh Police).
EDUCATION
B.Sc. in Computer Science & Engineering
Bangladesh University of Business and Technology (BUBT), Dhaka · 2016 – 2020
First Class Honours. Thesis: AI-based image processing (TensorFlow · MobileNet).
First Class Honours. Thesis: AI-based image processing (TensorFlow · MobileNet).
OPEN SOURCE
Published on PyPI, maintained solo — installed ~3,300×/month (~100/day), in production since 2023, 8 releases to v2.0.0, zero open issues; ran at three companies (RBS Tech, Byte Bridge, CosmosID).
REFERENCES
Adam Wallner