About Arjun
I am a full-stack engineer in Bengaluru, India, eight years in, currently principal engineer at Kettle. I work on payments and commerce infrastructure — the systems where being wrong is not a visual bug, it is somebody’s money.
I started at an agency, which is the best training there is for finishing things. Eleven products in two years teaches you to scope honestly, because you are the one who has to ship the estimate you gave. After that I spent four years on developer tooling and commerce, and the last two on a ledger.
The work I am proudest of tends to look like subtraction. Ledgerloop removed four hours a day of spreadsheet reconciliation. Atlas Search removed a $9,400 monthly invoice. Warp Migrate removed twelve maintenance windows a year. None of it demos well; all of it holds.
Outside work I maintain two open-source projects, and I am slowly learning to make a decent dosa. The dosa is going worse than the projects.
Skills
What I actually reach for
Grouped by the kind of problem rather than by language, because that is how the choice gets made.
Product engineering
What I reach for when the work is user-facing.
Backend & data
Where most of the eight years actually went.
Platform & delivery
Shipping it, and keeping it up at 3am.
How I work
The parts that are not a technology.
Output
By the numbers
Projects shipped per calendar year, counted at launch rather than at kickoff.
The count peaked in 2024 and has fallen since on purpose: fewer projects, each one bigger and owned for longer. 2026 covers January to August.
Education
Where the foundations came from
AWS Solutions Architect — Professional · Amazon Web Services
CompletedRenewed in 2026. Useful mostly for the parts about failure domains.
B.Tech, Computer Science · Vellore Institute of Technology
CompletedFinal-year project was a distributed key-value store that lost data under partition, which taught me more than the two years of coursework before it.
Want the short version?
Read a case study, or tell me about your project and I will tell you honestly whether I am the right person for it.