Donlawat Samerwongtip

Full-Stack & Backend Developer


Profile

Versatile full-stack developer with a strong foundation in C#, JavaScript, and Python. Comfortable across the entire stack — from designing databases and REST APIs to shipping polished frontends. Experienced in Linux-native environments (Arch, NixOS), Docker, and CI workflows. An independent tinkerer who has built custom development tooling and published open game modifications, sharpening the ability to read unfamiliar codebases and ship independently. Deeply interested in the evolving landscape of artificial intelligence and actively exploring how generative AI can be integrated into modern software architecture.


Work Experience

  1. Full-Stack Developer

    Cipher Co., Ltd.
    Apr 2026 — Present
    • Currently working on software development projects at Cipher Co., Ltd.
  2. May 2025 — Mar 2026
    • Diagnosed and resolved critical internal software bugs, ensuring uninterrupted daily operations and smooth logistical workflows.
    • Actively monitored proprietary applications, identifying defects and implementing targeted fixes to improve stability and performance.
    • Acted as primary technical resource for user-reported software problems, minimising system downtime and enhancing team productivity.
  3. Outsource Developer

    Transcode Co., Ltd.
    Jan 2024 — Mar 2025
    • Led end-to-end development as Lead Project Developer and Lead Database Designer, delivering scalable software solutions.
    • Executed complex data migrations and provided ongoing database maintenance for large enterprise projects.
    • Served as versatile technical resource: help desk support, diverse programming tasks, and maintaining multiple live applications.
  4. Software Engineering Intern

    Transcode Co., Ltd.
    Jun 2023 — Mar 2024
    • Functioned as a reliable project maintainer and technical supporter, assisting senior teams in software delivery.
    • Contributed to data integrity and system performance through routine database maintenance and secure data migrations.

Notable Projects


Technical Skills

Languages
C#JavaScriptTypeScriptPythonSQL
Backend
.NET / ASP.NETNode.jsREST APIsFastAPISignalRBunExpressElysia
Frontend
ReactAstroNext.jsSvelteHTML/CSSTailwind CSS
Databases
SQL ServerPostgreSQLMySQLSQLiteSupabase
Infrastructure
Linux (Arch, NixOS)DockerGitBash
Integrations
LINE BotLIFFLINE Messaging APIDiscord BotOAuth2JWT

Education

B.Sc. Software Engineering

Rajabhat Lampang University

2020 — 2024

Languages

  • Thai Native
  • English Professional working proficiency
  • Japanese Elementary