/ Curriculum Vitae
Tanzim Hossain
Backend Engineer · focused on system design & scalable backend systems.
/ Summary
I'm a CS undergrad at United International University who enjoys the unglamorous parts of backend engineering — clean boundaries, predictable data flows, and code my future self can still understand. I spend most of my time on multi-tenant SaaS design, concurrency, and small but pragmatic framework experiments. Outside of that, I mentor students at Softsasi and write about what I'm learning.
/ Experience
Backend Engineer & Mentor · Softsasi
- Designed and developed scalable backend systems
- Implemented clean architecture and modular service layers
- Led code reviews and architectural decisions
- Mentored interns on production-level engineering practices
Mentor · Softsasi
- Mentored developers on backend architecture and frontend structure
- Guided real-world project development
- Improved debugging and system-thinking skills of students
/ Selected Projects
Salon Management SaaS · Multi-tenant SaaS Platform
Backend for salon operations — booking, scheduling, and subscriptions on a multi-tenant foundation.
FileTree Pro · VS Code Extension
VS Code extension to generate and preview project folder trees before files hit disk — small surface area, steady adoption.
NextRush · Backend Framework
A learning-driven Node.js framework with a middleware pipeline, routing layer, and plugin system.
/ Technical Skills
- Languages
- TypeScript · Java · Go · Python · C++
- Backend
- Node.js · Express · NestJS · Spring Boot
- Frontend
- React · Next.js
- Database
- PostgreSQL · MongoDB · Redis
- Infrastructure
- AWS EC2 · AWS RDS · AWS S3 · Load Balancer · Docker
- Architecture
- Multi-tenant Architecture · Clean Architecture · Service-Repository Pattern · RBAC · OOP · Framework Design
- System Design
- Rate Limiting · Caching Strategy · Background Jobs / Queues · Event-driven Patterns · Concurrency Control
- AI
- LLMs · LangChain · Agent Systems
/ Open Source & Writing
- Marketplace29,000+ downloadsFileTree Pro — VS Code extension for preview-first file tree generation (marketplace listing). Actively maintained.
- WritingMediumTechnical articles on backend systems, architecture and developer experience · @0xtanzim
- FrameworksIn-progressNextRush (Node) and Axiom (JVM) — small learning frameworks built from first principles.
/ Achievements
- 20251st Runner Up
NASA Space Apps Challenge 2025
Finished 1st Runner Up at the global NASA Space Apps Challenge, building a working solution with a team under a 48-hour constraint.
/ Education
BSc in Computer Science
United International University (UIU)