Donlawat Samerwongtip

Full-Stack & Backend Developer


Summary

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. Passionate about clean architecture, developer tooling, and integrating generative AI into modern software.


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.

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