01
Multi-tenant systems
Isolation at the database, not only in app code. PostgreSQL, per-request organisation context, JWT + RBAC as defense in depth.
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Index / About
Open for freelance & full-time
Full Stack Engineer with 5+ years shipping multi-tenant SaaS and e-commerce. Currently building Cayura at Astitva Lab Pty Ltd — NestJS, Next.js, PostgreSQL, Prisma, and Docker.
I care about systems that stay correct under load: schema, auth, isolation, and the release path. Interfaces in Next.js. Services in NestJS. The database as the last line of tenancy, not an afterthought.
Now
Astitva Lab Pty Ltd · NDIS · Australia
Multi-tenant SaaS for the Australian National Disability Insurance Scheme. Developing end-to-end features through design, implementation, testing, and deployment — NestJS and Next.js on PostgreSQL, with Row-Level Security so tenants cannot see each other even if application code fails.
Practice
01
Isolation at the database, not only in app code. PostgreSQL, per-request organisation context, JWT + RBAC as defense in depth.
02
A system ships reliably when planning, architecture, tests, and deployment are owned end-to-end all the way to Linux production.
03
MCP, Ollama, webhooks, and API glue for ops that should not be manual. The assistant on this site is the same idea: useful, local, tied to real content.
Path
Apr 2026 — Present
Full Stack Engineer
Astitva Lab Pty Ltd · Australia (Remote)
Cayura — multi-tenant NDIS SaaS. NestJS, Next.js, PostgreSQL, Prisma, Redis, Docker Compose, Caddy.
2021 — Apr 2026
Full Stack JavaScript Developer
Semicolon IT Solutions · On-site
Production APIs, commerce, and realtime systems. NestJS, React, PostgreSQL, Docker, NGINX. Mentored juniors.
Education
Bachelor of Social Science (BSS)
National University, Bangladesh
English and Bangla. Self-taught engineering practice in production from 2021.
Stack
Next
Freelance or full-time. Product engineering and tenant-safe backends.