Open to opportunities

Takoon Ch

@takoonch

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Full-stack developer who ships maintainable production systems end-to-end across telecom, SaaS, and consulting.

Thailand

Message

What I'm looking for

I’m looking to own end-to-end features for maintainable, well-tested production systems—ideally Node.js/NestJS + React/Next.js work, including multi-tenant SaaS patterns, with teams that value clear API contracts and sustainable delivery.

I’m a full-stack developer with 10+ years shipping production systems across telecom, consulting, and SaaS. I’m comfortable owning features end-to-end and designing for maintainability over cleverness.

I’ve built multi-tenant SaaS platforms solo, including tenant isolation and role-based access control using Auth0, with a strong focus on reliability and avoiding data leakage. I partner closely with QA, SA, and PM to turn fuzzy requirements into predictable, testable software.

On the backend, I’ve worked deeply with Node.js, NestJS, microservices, RBAC, and PostgreSQL—plus systems integration using REST APIs, OpenAPI/Swagger, and Apigee Edge. I also enjoy production support, incident investigation, and improving service resilience through logging, error handling, and debugging.

My professional ethos is bias toward boring, well-tested tech and sustainable delivery. I like CI/CD, clear API contracts, and pragmatic architecture tradeoffs—simple, reversible decisions that keep teams moving.

Experience

Work history, roles, and key accomplishments

Node.js Developer

Extend IT Resource Co., Ltd.

Jul 2025 - Jan 2026 (6 months)

Maintained Apigee Edge (on-premise) API proxy configurations for True Corp's production API layer, updating routes, error codes, and response contracts to match actual behavior. Implemented targeted error handling to reduce unhandled failure paths surfaced to downstream client teams.

Apigee API Configuration Error Handling API Documentation

Full-Stack Developer

DBot Co., Ltd.

Nov 2024 - Mar 2025 (4 months)

Built a multi-tenant SaaS MVP end-to-end as the sole engineer, developing the Next.js frontend, NestJS API, and PostgreSQL (Prisma) backend. Designed tenant isolation and role-based access control with Auth0, and deployed containerized services to Google Cloud Run with CI/CD via GitHub Actions and Docker.

Next.js NestJS PostgreSQL Prisma Auth0 RBAC Docker Google Cloud Run GitHub Actions

Backend Developer

Capco Thailand

Feb 2022 - Feb 2024 (2 years)

Developed and maintained backend services in Node.js and Express across AWS and GCP for financial-services clients. Resolved production incidents in a multi-service architecture and reduced rework by clarifying ambiguous requirements with business analysts, QA, and PMs while improving reliability through logging and error handling.

Node Express AWS Google Cloud Production Support Logging Debugging Error Handling

Programmer Analyst

PE Resourcing

Jan 2016 - Feb 2022 (6 years 1 month)

Developed and maintained the AIS Privilege and Points platforms using Angular and Node.js for a large telco customer base. Integrated centralized logging/monitoring with Kafka and Elasticsearch, improved frontend performance and cross-browser compatibility, and debugged production issues across frontend, backend, and infrastructure with multiple teams.

Angular Node Kafka Elasticsearch Logging Debugging

Software Engineer

Multiple Software Houses

Jan 2011 - Dec 2015 (4 years 11 months)

Built internal enterprise systems using C# (.NET, WinForms), Java, and SQL, refining behavior based on real-world workflows with end users and stakeholders. Established foundations for structured development, source control, and enterprise delivery processes.

C# .NET WinForms Java SQL Enterprise Systems Structured