/ Projects / 03

Work from 0xtanzim.

A curated archive of backend systems, frameworks, and developer tools. Each one was built to explore an architecture idea or solve a real problem — not to pad a résumé.

Total: 4
Featured: 3
In progress: 1
Focus: Backend systems

/ Index

4 projects found

A tighter archive of shipped systems, tools, and experiments. Each card leads with the problem space, proof, and the next useful link.

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Featured, in-progress, or by live status.

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Projects can appear in more than one track.

Case study: Salon Management SaaS
System surface
Salon Management SaaS
01
Multi-tenant SaaS Platform
02
TypeScript
03
Shared schema, row-level tenant isolation (tenant_id on every table)
Status: Completed
Featured
2025
Multi-tenant SaaS Platform / Client
Salon Management SaaS
Full product for salon businesses — I built the Next.js frontend, NestJS backend, and deployment stack solo. Live at donebyme.dk: booking, scheduling, and subscriptions on a multi-tenant foundation.
Modules
18 domain modules
Decisions
5 ADR-level
Architecture
8 signals
Private repo
Live
Architecture Documentation (Public)
+2 more external links
- TypeScript
- Next.js 16
- NestJS
- PostgreSQL 15
- +9 more stack items
Case study: FileTree Pro
System surface
FileTree Pro
01
VS Code Extension
02
TypeScript
03
Preview-first file tree generation — see before you write
Status: Active
Featured
2025
VS Code Extension / Product + Open source
FileTree Pro
VS Code extension to generate and preview project folder trees before files hit disk — small surface area, 29k+ downloads, steady adoption.
Downloads
33,000+
Decisions
3 ADR-level
Architecture
Outlined
GitHub
VS Code Marketplace
- TypeScript
- VS Code API
- Webview UI
Case study: NextRush
System surface
NextRush
01
Backend Framework
02
Node.js
03
Typed middleware pipeline (compose reducer pattern)
Status: In Progress
Featured
2025
Backend Framework / Research + Open source
NextRush
A learning-driven Node.js framework — middleware pipeline, trie-based router, plugin system, and zero-dependency core. Built to understand how frameworks actually work.
Status
In progress
Decisions
4 ADR-level
Architecture
5 signals
GitHub
- Node.js
- TypeScript
Case study: Axiom Framework
System surface
Axiom Framework
01
Java Backend Framework
02
Java
03
Annotation-free routing DSL — the full flow is visible from the call site
Status: Experimental
2026
Java Backend Framework / Research + Open source
Axiom Framework
An experimental JVM framework inspired by Javalin — simple routing DSL, no annotations, minimal surface area. A sandbox for understanding JVM web framework design.
Stack
Java
Decisions
2 ADR-level
Architecture
Outlined
GitHub
- Java

/ 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.

Email: tanzimhossain2@gmail.com
Availability: Open to opportunities
Response: Usually within 24 hours

Discuss a role or project See the code on GitHub

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4 projects found

Salon Management SaaS

FileTree Pro

NextRush

Axiom Framework

Working on something interesting?

4 projects found

Salon Management SaaS

FileTree Pro

NextRush

Axiom Framework

Working on something interesting?