Building and shipping software since 2009 — payments, logistics, LLM platforms — looking primarily for a senior or principal individual-contributor role; also open to lead engineer, engineering manager, CTO, or tech co-founder positions.
Experience
- Dec 2020 Present
Founder
PRODIGY9 Co., Ltd.
Founded and run a software studio grown to ~60 people across ~10 active clients.
Hand-built most of the studio's platform and ops tooling myself (Go and SvelteKit, pre-AI) — platform engineering before the term was common — to keep small teams shipping fast. Advise founders to stay lean on minimal but scalable tech, rather than over-staffing before the first paying feature ships.
- Nov 2019 Nov 2020
Lead Software Engineer
T-Box Co., Ltd.
Won Thailand's first SEC ICO-portal license — led the 3-person build through the regulator's audit.
Carried the build through the SEC's audit, fielding the regulator's technical questions on a brand-new asset class. To address the SEC's central fraud concern, designed wallet-ownership verification via MetaMask signatures — the backend issues a signable challenge, the user signs in MetaMask, and the backend verifies it to prove live control of the address — alongside the KYC/AML the new platform required. Left once the license was secured.
- Jun 2019 Dec 2020
Chief Technology Officer
Muang Thai Broker Co., Ltd.
Scaled the engineering org to 20+ across a suite of insurance products.
Inherited a small team of ~5 junior developers and grew it into an organization of 20+ engineers, putting real development, ops, and QA processes in place (and owning internal IT) for an insurance group shipping gettgo.com and GettGo Hero, its agent-facing portal. Initiated the extraction and rewrite of the gettgo.com frontend — at the time a tangle of Rails-interpolated JavaScript that throttled performance — into a fast, independently optimizable stack. That freed the marketing team to SEO-tune at will — which matters when the product is sold on marketing.
- Jan 2018 Nov 2019
Director of Engineering
Omise Co., Ltd.
Doubled Omise's engineering org from ~15 to 30+ while raising the hiring bar.
Established the engineering hiring and onboarding process nearly from scratch with HR: screening a high volume of CVs, designing the interview flow, and personally reviewing take-home assignments to hold quality through fast growth. Stayed hands-on throughout with code review and mentoring.
- Nov 2015 Jan 2018
Senior Developer
Omise Co., Ltd.
Built core payments infrastructure and the full SDK suite for a regional payments company.
Refactored payment configuration into a cascading system — system defaults, per-PSP defaults, then per-merchant overrides — so settings could be tuned dynamically at every level. Generalized the internal KYC model to handle multiple countries from one codebase, which unblocked the Singapore launch. Built out essentially the entire SDK offering at the time, designing the APIs to be more ergonomic than the alternatives.
- Jul 2014 Sep 2015
Senior Developer
Hyperworks Co., Ltd.
Shipped Swift and React in production the year each launched.
Wrote the API and web servers, plus the native iOS and Android apps, for a Thai-language study app — adopting both stacks while they were brand new and still churning. Also co-authored a book on Go microservices.
- Nov 2013 Jul 2014
Technical Co-Founder
Suffixlab Co., Ltd.
Built a content-driven mobile app and the CMS powering it, end to end on a two-person team.
Delivered both halves myself: the native iOS and Android apps users saw, and the full backend feeding them — backoffice servers, the content API, and the CMS that managed it all. Designed a deliberately minimal architecture shared across both native clients to keep them at parity in quality and behavior. Along the way assembled a lightweight Go scaffold from idiomatic libraries — the direct predecessor to PRODIGY9's fx, still in heavy daily use.
- Nov 2011 Nov 2013
iOS / Android / Node.js Developer
Oozou Ltd.
Built a Node.js pub/sub system controlling every device in a hotel from a single mobile app.
Designed a text-based, PEG-parsed TCP protocol — and the Android SDK that spoke it — to let one app control the TVs, air conditioning, and other devices across a medium-sized hotel, since few existing protocols fit at the time. On a separate project, added SIP dialing to an iOS community app by writing gossip, an open-source Objective-C wrapper over the C-based PJSIP library on Grand Central Dispatch.
- 2011 2011
Developer
Hua Lumpong Co., Ltd.
Shipped five mobile apps across five platforms — iOS, Android, Windows Mobile, Bada, and BlackBerry.
Delivered distinct native apps for several clients, including a major newspaper, each platform on its own toolchain. Also wrote a code-submission verifier for the company hackathon that accepted and auto-validated entries.
- 2010 2011
Founder
2nitedesign Co., Ltd.
Built and open-sourced Sider, an idiomatic C# Redis client, back when Redis was brand new.
Designed the API to mirror Redis commands closely; it was listed on the official Redis clients page as the more idiomatic C# option.
- 2009 2010
Senior Developer
Ecartstudio Co., Ltd.
Reduced map-tile storage by over 50% on an in-house mapping engine.
Built a tile-compression tool for a proprietary mapping engine: a batch pipeline that re-encoded terabyte-scale PNG tile sets to 8-bit indexed PNGs. Documented the engine's internals across ~40 wiki pages, and built a Silverlight/DeepZoom viewer that hid the API integration behind a Google Maps-compatible interface, so existing client code needed no changes.
Passive Engagements
Held part-time — each venture runs day-to-day on its own team; involvement averages a chat message a week and architecture guidance once a quarter.
- Feb 2022 Present
Chief Technology Officer
Forward Insight Co., Ltd.
Took a logistics-ERP startup from zero to paying customers in production.
Built the founding team and architecture for a logistics-ERP platform: one app that tracks an operation from the field through to accounting, so profit and loss surface the moment a driver logs their last stop. Now lead engineering and technical direction, and run the infrastructure myself.
- Oct 2023 Present
Chief Technology Officer
Naxon.ai
Architected the LLM/RAG engine behind a conversational-AI platform, live with paying customers.
Set the architecture and directed the build. Designed a "brain-split" system: a stateless conversation engine over LangChain, backed by a separate event-sourced core API. The engine can be re-seeded from the core at any time, so a dedicated ML engineer can focus on conversation quality; the core guarantees no data loss. Now leading a refactor toward a message-middleware pipeline (reply generation, guardrails, MCP invocation), and building a vibe-coding platform with built-in storage for chat-first markets like Thailand, where users live on LINE.