Robust backends, resilient CI/CD, and clean interfaces — from system design to production. Recently at AzoozGAT: −30% bundle, −75% DB ops, and −24% load time.
What I ship
I take projects end-to-end. Pick a lane below or describe what you need — I’ll tell you honestly whether it’s a fit.
Authenticated, data-rich products — dashboards, portals, and cross-platform mobile apps — built around how your team actually works, from an empty repo to a deployed product.
The senior layer: database design, secure APIs, and automated deploy workflows that keep working under real traffic — not just on the happy path.
Production-grade AI grounded in your own data — answering questions, summarising content, or automating a real workflow — not a brittle, generic wrapper bot.
Send me a sluggish site and I find the bottleneck and ship the fix. A recent refactor cut the bundle 30% and load times 24%.
Stop deploying by hand. I set up automated testing and zero-downtime pipelines so every change ships safely and predictably.
Snapshot
A retrieval-grounded AI assistant embedded in this site that answers questions about my work without hallucinating — and demonstrates the exact RAG + intent-router architecture clients hire me to build.
50+
Projects shipped
4.4/5 avg client rating
Bangladesh (UTC+6) · Remote-first
5:37 AM my time · global clients welcome
30%
Bundle size cut
AzoozGAT platform
75%
Fewer DB ops
Per-session avg
54★ 11
Public repos · pushed 2mo ago
@nasimstg · C++, JavaScript, C, TypeScript
Currently building
Quiz & learning platform at AzoozGAT (Next.js + Firebase)
Experience
Sep 2025 — Present
Remote
Leading engineering on the AzoozGAT quiz and learning platform. Architecture, performance work, payment integration, and team direction.
Nov 2022 — Jan 2025
Remote
Freelance — Upwork, Fiverr, Freelancer
50+ projects across MVPs, integrations, and performance work. Maintained a 4.4/5 average client rating.
Jun 2022 — Nov 2022
Remote — Singapore (APAC) team, from Dhaka
Backend work on payment-processing flows at WEX, a global fintech for fleet fuel cards, corporate payments, and benefits. Owned small endpoints and reliability fixes under senior review, working across time zones with the Singapore team.
Mar 2022 — Jun 2022
Remote — Singapore (APAC) team, from Dhaka
First professional role: building and testing web features for WEX's internal payments tooling, working remotely with the Singapore team from Dhaka.
Selected work
A retrieval-grounded AI assistant embedded in this site that answers questions about my work without hallucinating — and demonstrates the exact RAG + intent-router architecture clients hire me to build.
Quiz and learning management platform serving live courses. The product I lead day-to-day at AzoozGAT.
Encrypt, commit, and inject .env secrets — a blazing-fast CLI with AES-256-GCM encryption, X25519 team sharing, and zero cloud.
AI-powered tech news aggregator — daily headlines, weekly roundups, and comparative coverage across AI, startups, software, and security.
Open-source, gamified learning platform — RPG-style skill trees you can build, share, and level up through, with community-curated resources.
Tech
Day-to-day tooling. I pick the right stack for the job — these are the ones I’ve shipped production work with.
Engagement
Open about availability and rates so you can decide fast. Currently leading AzoozGAT — open to new roles and select freelance work. Flexible start.
Remote-first · open to onsite & relocation for the right role
| Freelance / contractScoped or hourly | From $40/hr |
| Fixed projectMVPs, integrations, audits | From $3,000 |
| Full-time roleRemote · negotiable | $50k–80k / yr |
| Part-time / retainer~20h/week | From $1,500 / mo |
USD. Rates flex with scope, length, timezone, and equity. Internships welcome — let's talk.
How we work together
A clear, repeatable process — so you always know what’s happening and what comes next.
We talk through the actual bottleneck, then I map the technical plan and data model before writing a line of code. You approve the approach first.
I build in the open. You get a live staging link every week to see real progress and steer early — not a status report at the end.
It ships on automated, zero-downtime pipelines with a clean handoff, so future changes stay easy and low-risk whether I make them or your team does.
Two paths, same inbox
Send a two-line overview of what you’re building or hiring for, and I’ll reply with an honest take on fit, scope, and timeline. I usually reply within 24 hours.