Tech Lead, Senior Backend Engineer
I build SaaS products, backend systems, and AI features that ship to production.
I am a Tech Lead at DeveloperTag, where I work with a team of five engineers. We ship multi-tenant SaaS platforms, real-time features, and AI assistants on AWS. Most of my day goes into backend design, reviews, and making sure the systems stay reliable.
I have over three years of experience building SaaS products, dashboards, and APIs. I placed in the Top 10 at ICPC Asia 2023 and sit in the Top 5% on LeetCode with 300+ problems solved.
- Backend APIs with NestJS, Node.js, PostgreSQL, MongoDB, and Redis
- Microservices with Docker, queues, and monitoring
- AI chatbots and RAG pipelines using LangChain and LangGraph
- Real-time features with WebSockets and Socket.io
- Auth systems with RBAC, RLS, OAuth 2.0, and JWT
- Team leadership: architecture reviews, CI/CD, mentoring, and hiring
Tech Lead / Senior Backend Engineer, DeveloperTag
Dec 2024 to Present
I lead five engineers on a multi-tenant SaaS product. I own backend architecture, AI chatbot work, and our CI/CD setup with GitHub Actions, Docker, and AWS ECS. One of our query optimizations improved performance by about 60%.
Backend Engineer, DiveScale
Jun 2024 to Dec 2024
Built NestJS and GraphQL APIs, OAuth 2.0 login, and real-time chat. Kept test coverage above 85% with Jest.
Associate Software Engineer, Kwanso
Jun 2023 to Jun 2024
Worked on Node.js, Express, and NestJS services with PostgreSQL and MongoDB. Wrote API docs with Swagger and took part in code reviews.
Full list
| Area | Tools |
|---|---|
| Languages | TypeScript, JavaScript, SQL, Python, Bash |
| Backend | NestJS, Node.js, Express, Fastify, Next.js API Routes |
| Data | PostgreSQL, MongoDB, Redis, Prisma, TypeORM, PostGIS, Pinecone, Supabase |
| AI | LangChain, LangGraph, OpenAI, RAG, vector databases |
| Real-time | WebSockets, Socket.io, Redis Pub/Sub, Bull |
| Auth | RBAC, ABAC, CASL, RLS, JWT, OAuth 2.0 |
| Cloud | Docker, AWS (EC2, ECS, S3, RDS, Lambda, CloudFront), GCP, GitHub Actions |
| Practices | Clean architecture, SOLID, TDD, OpenAPI, Jest |
Most client work is private. You can find write-ups on my portfolio. Happy to share more details over email.
| Project | What it is | Stack |
|---|---|---|
| SimplyFlow | Workflow automation with AI agents | NestJS, n8n, LangGraph, AWS |
| Terzo.ai | RAG chatbot with search and live chat | NestJS, LangChain, Pinecone, Redis |
| GuardXP | Multi-tenant security platform | NestJS, CASL, PostgreSQL, Turborepo |
| FitnessAds.ai | AI ads and consultation chatbot | NestJS, LangGraph, Docker |
| SafeStreet | Incident reporting with location alerts | NestJS, PostGIS, WebSockets |
| QuizApp | Live quizzes for 1000+ users at once | NestJS, Redis, Bull, WebSockets |
| LMS | Courses, video streaming, live classes | NestJS, S3, CloudFront |
| 4Corners | Ecommerce with Stripe and inventory locks | NestJS, Stripe, Redis, S3 |
| AutoPostMD | Social media scheduling | Node.js, Meta and LinkedIn APIs |
- ICPC Asia Online Preliminary 2023, Top 10
- LeetCode Top 5%, 300+ problems solved
- Delivered 50+ projects for clients
- Student of the Year, Akhuwat College
Education: BS Computer Science, PUCIT (2019 to 2023)
I write clear design notes before big changes, prefer small releases, and care a lot about tests, logging, and keeping systems easy to operate.
