Volunteer management infrastructure trusted by nonprofits, healthcare systems, and enterprise CSR teams across North America.
SaaS SSO Backend
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Full-Stack Software Engineer
Hi, I'm Shanto
Self-taught full-stack software engineer based in Nazipur, Naogaon, Bangladesh. I pick whatever tech the problem needs, whether that's backend systems, product-facing features, or AI that has to hold up in daily use.
I'm most useful when the problem is unclear and the system has to keep running anyway.
How I work
How I think about the work
If you care more about outcomes than tools, this is the part that matters. I optimize for the business, the budget, and the traffic you'll actually have, then pick whatever gets you there.
The right tool, not my favorite tool
I choose based on the problem, the timeline, and the budget, not on what I used last time. The stack serves the goal, never the other way around.
Built for the traffic you'll actually have
I size decisions to real load and realistic growth. No over-engineering for scale that isn't coming, no corners cut where it will hurt later.
Aware of the investment
Every choice has a cost: money, time to market, and the people who maintain it after me. I weigh those before I write a line of code.
I adapt fast
Drop me into a new domain or an unfamiliar stack and I get productive quickly, then go deep enough to ship something sound.
My toolbox
What I reach for
Tools are means, not the point. When specifics matter, I usually start with a typed TypeScript backend and PostgreSQL, then widen the stack from there.
TypeScript 
Hono 
Express 
Drizzle 
Zod 
PostgreSQL 
11 domains · 97 tools
Where I've worked
Selected Work
SaaS platforms I've helped build, from volunteer management at scale to AI-powered commerce and print production orchestration. The systems behind the product, not a list of side projects.
AI-powered unified inbox for Bangladeshi merchants, with one place for every customer conversation.
SaaS AI Agents System Design
Centralized print production orchestration connecting Europe's largest print suppliers to hundreds of storefronts.
Saxoprint 
Flyerdevil SaaS Orchestration Multi-tenant
API-first hybrid commerce platform: online storefront, offline POS, and split fulfillment in one system.
SaaS Commerce API POS
Some of my writing
Writing
Notes on the things I think about - AI you can trust, systems that scale, and staying adaptable in a field that never sits still.
Write code the next engineer can actually change
A full walkthrough of refactoring a real API handler, from separation of concerns and result types to transactions, tests, and the habits that keep code maintainable six months later.
Posted on
Where to draw service boundaries before you need to scale
A deep guide to monoliths, microservices, queues, sagas, caching, and multi-tenant isolation, with real patterns from commerce and SaaS products that grew under load.
Posted on
The slow query I should have caught in staging
A full database performance postmortem covering schema design, N+1, EXPLAIN plans, indexes, locks, pagination, connection pools, migrations, and when to denormalize.
Posted on
Let's build something
Let's talk
Tell me what you're building or where you're stuck. I read every message and reply personally.
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Alongside
Partners
Teams I've shipped real product with. The kind of collaboration that leaves systems running, not just slides.
