Introduction
Work Experience
Education
Core Areas
Asia/Dhaka
English (Professional)
Bengali (Native)
Hindi/Urdu (Conversational)
MD ELIAS HOSSAIN
Software Architect & AI Expert | Full-Stack Dev & Eng | Rag, Ai AgentsI think like an architect, but I still write the code. I care about clean data flow, proper error handling, security by design, and systems that the next engineer can understand without a guided tour.
I do not build fragile prototypes. I build production systems that survive real users and can be maintained after launch.
If your project needs an engineer who can understand the product, identify technical risk early, and ship reliable software — let's talk.
I do not build fragile prototypes. I build production systems that survive real users and can be maintained after launch.
If your project needs an engineer who can understand the product, identify technical risk early, and ship reliable software — let's talk.
Work Experience
Independent Consultant & ArchitectRecent Highlights
Relevant Experience- AI-powered SaaS platforms with LLM features, semantic search, and document processing pipelines built for production workloads.
- RAG systems with retrieval tuning, chunking strategy, embedding pipelines, and accuracy optimization across real datasets.
- Multi-agent orchestration workflows using Claude and OpenAI APIs with structured output, fallback handling, and observability.
- Multi-tenant SaaS backends with role-based access control, scoped data isolation, and subscription-aware APIs.
- Real-time applications using SocketIo and WebSockets for live collaboration, notifications, and event-driven features.
- Full-stack bill management and invoicing platforms built with NextJs, Supabase, and customizable document templates.
- Serverless backend systems on AWS Lambda with TypeScript, MongoDB, JWT token rotation, and CI/CD integration.
- RBAC engine design with modular architecture, Drizzle ORM adapters, Auth0 integration, and NestJS API layer.
Upwork (Top Rated Freelancer)April 2024 - Present
Full-Stack Developer- Successfully completed multiple contracts on Upwork and delivered over 50+ development tasks/projects for clients
- Achieved Top 10% of talent status with multiple 5-star ratings
- Proven ability to meet client expectations by delivering high-quality solutions on time and ensuring full client satisfaction
- Skilled in effective communication and collaboration to ensure project success
ElegantMind AiDallas, TX (Remote)
Full-Stack Engineer- Developed multi-tenant hospital management applications and communication software with seamless integrations for platforms like Slack, WhatsApp, and other workspaces.
- Built applications that generate and adapt voice outputs based on DISC personality profiles (Dominance, Influence, Steadiness, Conscientiousness).
Arthalab Solutions (STPI Aurangabad, Maharashtra, India)Sept. 2024 - Present
Full-Stack Developer & DevOps (Remote)- Engineered full-stack solutions using modern frameworks (React.js, Next.js, Node.js, Express.js, Nest.js), reducing development cycles by 30%
- Designed and maintained CI/CD pipelines with GitHub Actions, automating testing, builds, and deployments to accelerate release velocity by 40%
- Managed version control, testing, and debugging, utilizing GitHub, Jest, and Cypress to ensure smooth deployment and high-quality code
- Collaborated with product and QA teams to streamline Agile workflows, delivering high-impact features aligned with business objectives in 2-week sprints
- Mentored junior developers in best practices for cloud architecture, microservices design, and automated testing frameworks
Stack Learner (Bashundhara R/A, Dhaka)Feb 2018 - December 2023
Full-Stack Developer & Front-End Team Lead- Led a front-end development team to deliver seamless web applications, ensuring optimal user experiences using React.js, Next.js, and Tailwind CSS
- Developed back-end solutions using Node.js, Express.js
- Managed version control, testing, and debugging, utilizing GitHub, Jest, and Cypress to ensure smooth deployment and high-quality code
- Collaborated closely with cross-functional teams to meet business requirements and delivered projects within Scrum timelines
- Spearheaded the implementation of best practices in front-end architecture, code reviews, and performance optimization
Education
National University, BangladeshBBA in Finance & Banking - March 2022 (Class of 2018)
Completed Four Years Bachelor's Course
Completed Four Years Bachelor's Course
Core Areas
AI and LLM EngineeringRAG pipeline design and optimization, LLM integrations (OpenAI, Claude, Gemini), AI agent workflows, multi-agent orchestration, semantic search, vector databases, prompt engineering, token cost optimization, and production AI debugging.
Software ArchitectureMulti-tenant SaaS platforms, RBAC and permission systems, event-driven backends, modular monolith and microservice design, API-first architecture, codebase audits, and technical rescue work.
Backend EngineeringNodeJs, NestJS, Express, TypeScript, REST APIs, WebSockets, JWT Auth, Queue systems, Serverless functions.
Frontend EngineeringNextJs, React, TypeScript, Tailwind CSS, Material UI, Server Components, App Router.
Databases and StorageMongoDB, PostgreSQL, Redis, Supabase, Firebase, Prisma, Mongoose, Vector databases (Pinecone, pgvector, Qdrant).
Cloud and DevOpsAWS Lambda, Docker, CI/CD pipelines, Serverless architecture, Environment management and production deployment.