Hi, I'm Jenwit.Lead Engineer& Tech Lead.
I build scalable web platforms, backend services, internal tools, and AI-assisted engineering workflows across media, fintech, and enterprise products. I combine hands-on engineering with technical leadership, SEO platform thinking, and stakeholder collaboration.
About
The engineer
behind the product.
Summary of Qualifications
- 8 years of full-stack engineering experience across media, fintech, and enterprise environments
- Currently leading a team of 5 engineers at Tencent Thailand as Technical Lead
- Deep hands-on expertise in Node.js, TypeScript, React, Next.js, NestJS, and MongoDB
- Introduced AI-assisted and agentic development workflows (Claude, Cursor, multi-agent orchestration, Claude tool use) — reducing task implementation time by an estimated 50–70% on selected tasks
- Experience in Technical SEO, SEO tooling development, GA4 content analytics, keyword research automation, and AI-powered content optimization systems
- Experienced working across engineering, product, finance, legal, SEO, and executive stakeholders to align technical execution with business priorities
- Open to Lead Engineer, Senior Full-Stack, Product Engineer, SEO Platform Engineer, and Solutions Engineer roles — including international positions
Early adopter of Claude, Cursor, n8n, RAG pipelines, and Ollama for workflow automation and prompt-driven development — currently active at Tencent Thailand.
Full-Stack Platform Development
End-to-end web platform delivery from architecture to production using React, Next.js, Node.js, and NestJS.
Backend API & Service Architecture
Designing scalable, maintainable backend services with REST APIs, MongoDB, PostgreSQL, and event-driven patterns.
Technical Leadership & Mentoring
Leading engineering teams, improving sprint execution, unblocking engineers, and building ownership culture.
Agentic AI & Automation
Building multi-agent systems with Claude tool use, function calling, n8n orchestration, RAG pipelines, and chatbot integrations (Discord, LINE via OpenCrawl).
Internal Tools & Backoffice Systems
Building operational tools that reduce manual workflows and give teams better visibility and control.
SEO & Growth Engineering
Building Technical SEO systems, keyword tools, content performance dashboards, and AI-assisted SEO automation for editorial and growth teams.
Stakeholder Communication
Translating technical decisions into business outcomes across engineering, product, finance, legal, and executive teams.
Work
Selected
Engineering Impact.
High-Traffic Media & SEO Platform
Led engineering work for a high-traffic Thai media platform, supporting content operations, SEO workflows, internal tools, and scalable backend services across news and entertainment verticals.
Serving 70M+ monthly page views with 99.9% uptime. Reduced p95 API response time by 45% via Redis caching (measured: Tencent Cloud APM, 30-day pre/post). Deployment time cut from ~50 min to ~12 min via GitLab CI restructure.
Lead Software Engineer / Technical Lead
GA4 Big Data & LLM Insight Platform
Designed a data engineering workflow to collect GA4 analytics into an internal database and provide it as a source for an LLM-powered insight platform using Gemini with LINE and Discord interfaces.
Automated reporting for 500K+ daily content events. Reduced manual editorial reporting from ~3 hrs/day to under 20 min (measured: team time-log pre/post). Dashboard adopted by 15+ editorial and business stakeholders.
Technical Lead / Data & Platform Engineer
Cloud Migration & CI/CD Modernization
Modernized deployment workflows and cloud infrastructure for production web platforms using containerization, CI/CD pipelines, and cloud-native services.
Increased deployment frequency from 2x/week to daily releases. Rollback time reduced from ~2 hrs to under 15 min via containerised strategy. Pipeline build time cut by 76% (measured: GitLab CI duration logs).
Technical Lead / Platform Engineer
SABUY Wallet & Fintech API Platform
Built and maintained business-critical fintech backend services supporting wallet services, payments, partner operations, and enterprise transactions.
99.95% API uptime across payment and wallet services. 15,000+ daily transactions at p95 <150ms. Defect rate reduced by ~52% post-TypeScript migration (measured: QA defect tracker, 6-month pre/post comparison).
Senior Software Engineer / Technical Lead
Insurance Service Backend Integration
Developed backend services for insurance integration, API standardization, partner communication, and internal enterprise workflows.
Reduced partner integration setup time by ~40% via reusable OpenAPI contract templates. Supported onboarding of 3 insurance partners using shared service components (measured: story point tracking per integration sprint).
Senior Software Engineer / Backend Engineer
Banking Credit Card & Enterprise Systems
Developed financial and enterprise systems including credit card service workflows, business operation tools, and client-facing enterprise applications.
Delivered SIT/UAT sign-off across 2 major client environments on schedule. Reduced manual data-entry operations by ~30% through workflow automation (measured: ops team process audit before/after go-live).
Software Engineer / Backend & Enterprise Application Engineer
Skills
Everything I
build with.
Experience
Where I've
made impact.
Tencent Thailand Co., Ltd.
CurrentLead Software Engineer / Technical Lead
Lead engineering execution for internal platforms, AI-driven tools, and digital product initiatives across a media platform, working closely with QA, Growth, SEO, and executive stakeholders.
Sabuy Technology Co., Ltd.
Senior Software Engineer / Technical Lead
Delivered business-critical fintech platforms supporting payments, wallet services, partner operations, and enterprise transactions.
CNES Consulting Co., Ltd.
Software Engineer
Developed enterprise applications and backend services for financial clients, working onsite at client environments.
Domestic Leasing (1992) Co., Ltd.
Software Engineer
Delivered software solutions across mobile apps, backend APIs, messaging systems, and cloud-hosted services.
Writing & Events
Beyond
the codebase.
Articles
The Painful Truth About Legacy Projects — and How Teams Can Stop Creating Them
Legacy systems are not technical failures. They are failures of time and attention. An exploration of why software systems become legacy and practical strategies teams can implement to prevent technological decay.
Events & Hackathons
MIT Hackathon
Participated in a hackathon organised under MIT, collaborating with cross-functional teams to design and prototype innovative solutions under time constraints.
Certifications & Badges
Secure Lakehouse Data
Google Cloud Skills Boost
Implement Speech and Language Solutions with Pre-trained APIs
Google Cloud Skills Boost
Workspace Add-ons
Google Cloud Skills Boost
Google Developer Essentials
Google Cloud Skills Boost
Gemini for Data Scientists and Analysts
Google Cloud Skills Boost
Build Real World AI Applications with Gemini and Imagen
Google Cloud Skills Boost
The Basics of Google Cloud Compute
Google Cloud Skills Boost
Prompt Design in Agent Platform
Google Cloud Skills Boost
Contact
Let's build
together.
I'm open to Lead Engineer, Senior Full-Stack, Product Engineer, and Solutions Engineer roles — including international and remote opportunities. If you're looking for someone who combines deep technical execution with team leadership and stakeholder communication, let's talk.
Open to