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Somsak Wongsuwan
From Thailand 04:21 AM (GMT+07:00)
$25/hr or $48,000/yr

Active 51 minutes ago


Member since Aug 2026

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Senior Software Engineer

Software Engineer
Available for hire
Years of experience
10+ years
Experience level
Senior
Available for
Full-time, Contract
Download Resume / CV

I started at a small digital agency in Bangkok where the codebase was messy, the deadlines were tight, and nobody was coming to save you. That taught me something most engineers learn too late - ownership is not a title, it is a habit.

From there I went to LINE and suddenly my code was touching 10 million people. Then Omise, where I learned what real pressure feels like. 5 million transactions a month. 99.95% uptime. When payments break, real businesses stop. That environment made me a fundamentally different engineer.

Now I have spent the last two years in AI - not playing with demos but shipping multi-model production systems connecting GPT, Claude and Gemini into real workflows that cut email triage time by 60% and reduced response latency by 45%.

What makes me unique is simple. I have been the junior who figured it out alone, the mid-level who scaled to millions of users, the senior who mentored others and raised team test coverage from 45% to 78%. I have seen every stage of a system's life - from messy first commit to production incident at 2am.

I do not just write code. I think about who uses it, what breaks at scale, and what hurts in six months if we do not design it right today.

Remote-first. Bangkok-based. Always building something. 🚀

Languages

Employment History

Senior Software Engineer at R-Link LLC 2024 - 2026
- Deliver core capabilities across 2 production platforms (8,000+ MAU) - studio.r link.com and app.getoperly.ai - spanning real-time video collaboration, live commerce, blockchain reward systems, and AI-powered workflow automation. - Integrate 3 major LLM families (GPT, Claude, Gemini) in a multi-model agent workspace, cutting email triage time by 60% and content generation cycles by 3x via proactive task automation. - Design WebSocket services and REST APIs across 3 latency-sensitive domains - meeting-room state, live commerce, and participant synchronization - reducing critical-path latency by 40% and achieving 99.9% session stability under peak load. - Optimize 3 critical user journeys: cut meeting join time by 32%, AI agent response latency by 45%, and live shopping reliability by 28% across real-time application flows. - Partner with product and design to deliver 6 major feature releases on schedule with zero critical post-release incidents, shipping white-label studio and AI agent capabilities end to end across 2 client surfaces (web and mobile).
Software Engineer at Omise 2021 - 2023
- Engineered high-throughput payment processing and merchant dashboard services with Node.js, TypeScript, and PostgreSQL, supporting 5M+ transactions monthly at 99.95% uptime across regional payment operations. - Built internal tools and REST APIs for 2 workflows - reducing merchant onboarding time by 40% and improving settlement reporting accuracy by 30%. - Led Docker containerization and observability improvements, cutting incident detection time by 55% and deployment cycle time from 45 to 12 minutes. - Mentored 4 junior engineers in TypeScript, testing, and code review, raising team test coverage from 45% to 78% and cutting production bug rate by 30%.
Full-Stack Developer at LINE 2018 - 2021
- Shipped React and Node.js features across 2 product surfaces serving 10M+ LINE Thailand users, maintaining 99.9% availability and delivering 12+ improvements per quarter. - Implemented real-time notification and messaging components handling 50,000+ concurrent connections at 99.9% delivery reliability, reducing notification latency by 35%. - Partnered with product and design in Agile cycles, sustaining 95%+ on-time sprint delivery over 3 years.
Software Developer at Redsky Digital 2016 - 2018
- Developed full-stack SaaS features with JavaScript, React, and Node.js, contributing to 3 successful product launches delivered on time and within scope. - Owned 3 end-to-end modules - user auth (-25% error rate), dashboard UI (-40% load time), and reporting - from design through release.

Education

Bachelor of Engineering in Computer Engineering at King Mongkut's University of Technology Thonburi (KMUTT) 2012 - 2016