About Kriyonix
Kriyonix is a founder-led software studio in Dhaka, Bangladesh. It builds software for clients and products of its own, and it started in 2026 from one idea: build software you'd be willing to live with.
- Founded
- 2026
- Based in
- Dhaka, Bangladesh
- Founder
- Rabbil Yasar Sajal
- Own products
- JossJobs, KemonChilo
- Contact
- contact@kriyonix.com
The founder
Rabbil Yasar Sajal Founder and engineer
Rabbil started Kriyonix after seven years building Python backends. The last five were at TeamWeb, as a core engineer in a small remote team based in the UK, working on two products in parallel.
Before that: Django backends for an exam-prep platform, and a compliance system now used by the National Museum of Science and Technology.
That work is where the Kriyonix standard comes from: tests on everything shipped, changes that go through CI, and code a team has to keep running for years.
Before Kriyonix
- IssuebearA project tracker where AI agents work as teammates alongside people. Task capture, kanban boards, permission-based dashboards, and integrations with AI coding tools like Claude Code and Cursor.
- TourAmigoA booking and operations platform for tour and cruise operators. Backend across itinerary planning, bookings, supplier management and distribution to travel agents, running on AWS.
- EnvShieldAn open-source command-line tool on PyPI that turns .env files into a version-controlled configuration contract.
Why a studio with its own products
Building and running our own products means living with every decision, the same way a client does. It keeps us honest about what "production-ready" means. The company is early. The standard isn't.