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/ About / 02
Hi, I'm Tanzim.
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.
/ Approach
System design that stays boring under pressure.
I'm based in Dhaka, Bangladesh. Most of my engineering time goes into shaping data models, concurrency-aware flows, and multi-tenant architectures that don't leak.
I work as a Backend Engineer & Mentor at Softsasi — helping with architectural decisions, code review, and the practical parts newer engineers rarely get from tutorials.
Outside work I experiment with small frameworks and AI developer tools. A wider signal trail is in the achievements section.
/ Engineering principles
- 01Boring tech wins — exotic stacks lose to proven ones.
- 02Architecture first, code second — clean boundaries beat clever code.
- 03Design for failure — break loudly, recover gracefully.
- 04Readable > clever — ship clarity, not complexity.
Let’s talktanzimhossain2@gmail.com
Currently active
- 01Operating a production multi-tenant Salon SaaS
- 02Designing NextRush, a Node.js framework
- 03Mentoring interns at Softsasi
- 04Writing about system design on Medium
Where I learn
Full-Stack Army
Stack LearnerComplete MERN Stack journey in Bangla. 162 lectures — React, Next.js, Node.js, system design, and production deployment from scratch to ship.
View playlistReactive Accelerator — Batch 1
A+ 82.31%Formal React.js and Next.js course by Sumit Saha (Learn With Sumit). Jan – Jun 2024. 8 projects completed; awarded Star Performer grade.
Verify certificateStack Learner Workshops
ongoingHands-on workshops covering TypeScript, system design, Node.js, and global market skills. Focused on production patterns over toy examples.
stacklearner.com/ Toolkit
The stack I reach for.
Tools change, principles don't. Still — here's the current toolkit I use to ship.
/ Languages
01- TypeScript
- Java
- Go
- Python
- C++
/ Backend
02- Node.js
- NestJS
- Spring Boot
/ Frontend
03- React
- Next.js
/ Database
04- PostgreSQL
- MongoDB
- Redis
/ Infrastructure
05- AWS EC2
- AWS RDS
- AWS S3
- Load Balancer
- Docker
- RabbitMQ
/ Architecture
06- Multi-tenant Architecture
- Clean Architecture
- Service-Repository Pattern
- RBAC
- OOP
- Framework Design
/ System Design
07- Rate Limiting
- Caching Strategy
- Background Jobs / Queues
- Event-driven Patterns
- Concurrency Control
/ AI
08- LLMs
- LangChain
- Agent Systems
/ Experience
Where I've worked.
A short track record — mostly backend, mentoring, and shipping production systems.
- Dec 2025 — PresentFull-time
Backend Engineer & Mentor
Softsasi / Remote
- 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
- Jun 2025 — Dec 2025Part-time
Mentor
Softsasi / Remote
- Mentored developers on backend architecture and frontend structure
- Guided real-world project development
- Improved debugging and system-thinking skills of students
/ Education
Still learning.
BSc · Ongoing
United International University (UIU)
Computer Science
Dhaka, BD
/ Course focus
Data structures, algorithms, databases, and system design — the foundations that inform every production system I build.
/ Beyond the classroom
Concurrently shipping production systems, mentoring engineers, and contributing to open source.
/ Signals
A few honest numbers.
The facts, not the flex. A short snapshot of things that happened along the way.
29K+
Marketplace Downloads
FileTree Pro on VS Code Marketplace
1st
NASA Space Apps
Runner up · Mymensingh · 2025
4
Public Projects
Shipped or in progress
Softsasi
Currently at
Backend Engineer & Mentor
Highlights · opens detail page
View all (2)2025 / 1st Runner Up — Mymensingh
NASA International Space Apps 2025 — Climaxplore (Team Softsasi)
1st runner up (Mymensingh site) at the 2025 NASA International Space Apps Challenge with Team Softsasi on Climaxplore — an AI weather risk platform. My focus: architecture support, technical review, and keeping the system design coherent through the sprint.
Details →DEVPOST / BUILT-IN AI CHALLENGE
Google Chrome Built-in AI Challenge 2025 — ContentChat AI
Shipped ContentChat AI: a Manifest V3 Chrome extension that uses on-device Gemini Nano (Summarizer, Prompt, Writer, Rewriter, Proofreader) — no API keys, privacy-first, built for the official 2025 challenge.
Details →/ Recommendation
“Hard working, serious, dedicated & quick learner, who can be a good asset to any organization.”
Md Tanzim Hossain completed the Reactive Accelerator — Batch 1 intensive full-stack program at Learn with Sumit from January 8 to June 18, 2024. During the course, he completed eight small & medium scale projects and one large-scale project covering React.js and Next.js from Basic to Intermediate.
He earned a Star Performer award with an A+ grade (82.31%) — placing him among the top performers in the cohort.
/ Say hi
Working on something interesting?
Open to backend engineering roles, systems-heavy products, and architecture conversations. I reply to most emails within a day.
- Availability
- Open to opportunities
- Response
- Usually within 24 hours