// 00 workshop
Rabbil Yasar Sajal
Software Engineer / Builder
I build software, developer tools, and things I find interesting.
Open to software engineering roles & interesting collaborations.
- EnvShield
- JossJobs
- KemonChilo
// 01 building
Building
EnvShield
Environment variables, as a version-controlled configuration contract.

JossJobs
BUILDINGAI-assisted job-search intelligence.
KemonChilo
BUILDINGRestaurant customer intelligence & service recovery.
Also on GitHub — Dexpense Tracker, Auction Site, CRM Django, Movie-Stuff.
I also run Kriyonix, a small studio for web and AI-powered products.
// 02 work
Work
// 03 exploring
Exploring
What I work with
Python · Django · Flask · SQLAlchemy · MariaDB · Alembic
React · Next.js · TypeScript · Tailwind
Docker · AWS
Playwright · Pytest
Linux · Proxmox · TrueNAS
Currently exploring
Go · FastAPI · Svelte · Node.js · Agentic / LLM tooling
Thinking about
How everyday processes in Bangladesh — especially interacting with government services — could become more self-serve.
// 04 outside work
Outside work
Homelab
I like having things running at home that I understand and control.
Gaming
Currently playing
Baldur's Gate 3, The Witcher 3, God of War 2
// 05 notes
Notes
// 06 contact
Get in touch
I'm open to interesting software engineering opportunities, product ideas, and collaborations.