Looking for a job

Thiyagu Arunachalam

@thiyaguarunachalam

Message

Full Stack Software Developer at Tomato Co., Ltd. delivering Vue 3 and Spring Boot features from Figma to production.

Japan

Message

At Tomato Co., Ltd., I deliver user-facing features from Figma mockups to production using Vue 3, TypeScript, Spring Boot, and PostgreSQL. I build multi-step forms and RESTful APIs, including transactional bulk-save endpoints and optimized queries.

At CodeMax IT Solutions, I developed Angular applications and Node.js APIs, including a dynamic onboarding flow and a tool connecting legacy database storage with AI chatbot infrastructure. I also implemented JWT and OAuth 2.0 authentication and RBAC.

At Centiyent, I built a SIEM-based web application and developed RESTful APIs with PostgreSQL. My personal projects include Ysuvadu, a version-tracking web app for physical artists, and Nihon-post, a Vue 3 postal-code lookup library published to NPM.

Experience

Work history, roles, and key accomplishments

Current

System Engineer (Full-Stack)

Current

Tomato Co., Ltd.

Nov 2025 - Present (1 year)

Delivering user-facing product features end-to-end from Figma mockups to production using Vue 3, TypeScript, Spring Boot, and PostgreSQL. Collaborating daily in conversational Japanese with team members and clients to refine requirements and technical specifications.

Vue3 TypeScript Spring Boot PostgreSQL Figma REST APIs Japanese

Software Developer

CodeMax IT Solutions

Apr 2024 - Sep 2025 (1 year 5 months)

Optimized Angular modules with dynamic components, improving UI responsiveness and reducing redundant re-renders by 25%. Engineered a multi-step dynamic onboarding form using Angular Reactive Forms, integrating validation, conditional fields, and API-driven data fetching.

Angular NodeJS REST APIs SQL JWT OAuth RBAC XSS CSRF CORS MCP TypeScript

Angular Developer

CodeMax IT Solutions

Apr 2023 - Mar 2024 (11 months)

Optimized Angular applications with lazy loading, AOT compilation, and tree-shaking, improving initial page load times by 30%. Architected a white-label Angular system enabling multi-brand customization and internationalization (i18n) support without altering core functionality.

Angular NgRX RxJS Angular Material CDK i18n Lazy Loading AOT Tree Shaking Signals

Full-Stack Developer

Centiyent

Jun 2022 - Mar 2023 (9 months)

Built a SIEM-based web application for monitoring, analyzing, and visualizing security events through a scalable, reusable frontend architecture. Created and maintained 40+ reusable Angular components, cutting development time by ~30% across internal projects.

Angular NodeJS PostgreSQL JWT Bcrypt Cypress REST APIs