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wit03Jarukit Jintanasathirakul

Full-stack engineer in Bangkok. I build products, LLM tooling, and the infrastructure underneath them.

Associate Developer at Thoughtworks
dive

Now

3 m
  • Software engineer at Thoughtworks Thailand, on a major finance platform in Australia.
  • Fresh B.Eng. graduate in Computer Engineering from KMUTT.

Work

8 m

Associate Developer

atThoughtworksCurrentFull-time

Jun 2026 – Present4 mos
  • Software engineer on a major finance platform in Australia.

Software Engineer

atSkooldioInternship → Contract

Jun 2025 – May 20261 yr
  • Built Pegasus, the customer-support chatbot platform for LINE MAN Wongnai.
  • Designed an LLM regression suite and real-time LLM-as-a-Judge evaluation.

Co-founder · CPO & CTO

atCatalyzt TechCo-founder

Jun 2023 – Jan 20262 yrs 8 mos
  • Raised $300k+ in Optimism Retro Funding for DAO governance tools.
  • Set product direction and led the engineering and design team.
  • Exited for more oppurtunities apart from blockchain.

Frontend Developer

atWeVis × Punch UpInternship

Jun – Aug 20233 mos
  • Built Corrupt0 by ACT, an anti-corruption data platform, in Next.js.
  • Turned 50,000+ rows of CSV into web data and hand-built the animations.

Education

13 m

B.Eng. Computer Engineering

atKMUTTInternational Program

2022 – 2026GPAX 3.50/4.00 · 2nd-class honours
  • King Mongkut's University of Technology Thonburi.
  • Full Petch Pra Jom Klao scholarship in Innovation Development.
  • President of the International Program; VP of CPE class 36.

Science–Math & Technology Program

atRoong Aroon SchoolHigh school

2006 – 2021GPAX 3.63/4.00
  • President of the 20th class.

Projects

18 m
RetroPGF HubCommunity hub for Optimism Retro Funding1,500+ unique users and 180k interactions. Led the team through two platform migrations.Next.jsGraphQLEAS
Builder IdeasOptimism's project-idea libraryCommissioned by the Optimism Foundation and deployed on their domain.RemarkMixpanel
Homelab35+ containers, all as codeGrafana, Prometheus, Tailscale and 3-2-1 backups on one box at home.DockerIaC
MusicKitLive music queue for Creatorsgarten eventsGuests queue songs from their phones.SvelteSocket.io
PelterStray-pet listing backendClean Architecture in Go, built for a software engineering class.GoFiberPostgreSQL

Talks & writing

22 m
Nov 2024Building Web3 as a StudentETHSEA 2024, part of Devcon 7
Jul 2024React 18 กับ Double Call ใน useEffect()Article
Apr 2023Catalyzt Tech in the Optimism ecosystemOptimism Community Meetup Thailand
Sep 2022Justice for React.StrictModeReact Meetup Thailand
Mar 2020Random เเค่ไหนกับ Math.random()Article

Awards

26 m
2025Hack to The Max: ITMXFinalist
2024ExxonMobil Bootcathon1st runner-up, Generative AI track
2023Hack BKKWinner, Data category
2023Makathon by MakroFinalist
2020KMUTT Super Computing Contest1st runner-up

Off-screen

29 m
ScubaWhere the dive gauge comes from.
BoulderingProblem-solving, but with forearms.
HomelabbingLearning infras through electricity bills.