Chiang Mai, TH
// hi, I'm —

Sutthinart Khunvadhana

Sutthin . art

Frontend Engineer

I build fast, real-time web interfaces for complex financial systems.

Download Resume View Showcase
7+ Years in fintech & enterprise
30k+ Firms in production
Azure Certified · AWS · GCP
02 / Showcase

Selected work. Seven years building real-time systems for institutional finance.

01 / 02
Messaging · LSEG

LSEG Messenger

Secure, compliant instant messaging platform for global financial services professionals.

Stack
React.js TypeScript WebSockets Redux Toolkit
Role
Led the web client's messaging architecture, driving a legacy rewrite to React/TypeScript, improved performance and long-term maintainability.
Impact
30,000+ firms across 180+ countries · legacy-to-modern rewrite · measurable performance gains.
02 / 02
Interop · Refinitiv

Eikon Desktop Interop Platform

Developer platform enabling apps to run alongside the Eikon desktop, seamless workflow integration for financial data.

Stack
TypeScript Node.js Express Swagger/OpenAPI
Role
Built the developer platform for Eikon's Side by Side API, discovered and documented endpoints, integrated Swagger for interactive API exploration.
Impact
Faster developer onboarding · adopted as internal standard · enabled external partner integrations.
03 / About

Frontend, for systems where reliability isn't optional.

I'm a frontend engineer based in Chiang Mai, Thailand. Since 2018, I've built interfaces for institutional finance and enterprise SaaS, mostly at LSEG and Refinitiv. I work on real-time systems where a stuck WebSocket is a P1.
I work closest to the UI, but I build across the stack when the problem demands it.

Outside of code, you'll find me in the kitchen making homemade Greek yogurt with my wife.

— Trajectory
2022 — 25
LSEGSenior Lead Software Engineer
2021 — 22
Ever Medical TechnologiesSoftware Engineer Team Lead
2020 — 21
RefinitivLead Software Engineer
2018 — 20
Thomson ReutersSenior Software Engineer
— Stack
Frontend
React.js, TypeScript, Redux, Zustand, Next.js · HTML5 · CSS3
Real-time
WebSockets, pub/sub · event-driven architecture
Testing
Jest, React Testing Library · TDD
DevOps
Docker, Jenkins, GitLab CI/CD
Cloud
Azure (certified), AWS, GCP
AI-assisted
Claude Code · spec-driven dev · structured LLM contexts
04 / Contact

Let's build real systems.

Senior Frontend-Focused Full-Stack Engineer. Fintech, enterprise SaaS, and developer tools. Async-first; EU/APAC/ME hours.

Reach out Replying within 24h
Email sutthinart.khunvadhana@gmail.com LinkedIn linkedin.com/in/sutthinart GitHub github.com/iakgoog Resume CV_Sutthinart_Khunvadhana_2026.pdf