Senior Software Engineer | Backend Specialist | Architecture-Focused

I design and build scalable, API-first backend systems with a strong focus on clean architecture, performance, and long-term maintainability.
I enjoy turning vague business requirements into clear technical solutions and helping teams ship reliable software.

I’ve worked on systems handling thousands of concurrent users, large datasets, and evolving product requirements in production environments.

• Design backend architectures for growing applications
• Build RESTful & API-first systems (web today, mobile tomorrow)
• Optimize database performance for large datasets
• Improve code quality, testability, and observability
• Mentor developers and collaborate across product, QA, and design

• Designing systems for scale, reliability, and growth
• Database indexing, partitioning, and query optimization
• Caching, background jobs, and async processing
• Transitioning from Senior Engineer → Solution Architect

• API-first mindset
• Clear separation of concerns
• Prefer simple, boring solutions over over-engineering
• Performance and scalability considered early, not as an afterthought
• Documentation matters — future developers include me

I value clarity over cleverness, ownership over titles, and systems that are easy to reason about at 2 AM.

I enjoy:

• Architecture discussions
• Backend-heavy projects
• Learning-by-building
• Reviewing system designs and trade-offs

Always happy to exchange ideas with engineers who care about clean systems and real-world scalability.

• 💼 LinkedIn: Nazmul Hasan Sheum
• 🌍 Portfolio: https://sheum.dev
• 📧 Email: nazmulhasansheum@gmail.com

“Good software is built twice: once in the mind, once in code.”