Ajanthan Arulnathar | Senior Software Engineer | Front-End Expert

About Me

Senior Software Engineer

I’m Ajanthan Arulnathar, a Senior Software Engineer with 12+ years of experience designing and delivering scalable web applications across front-end, full-stack, and cloud environments. I specialize in React, TypeScript, JavaScript, Node.js, Java, and AWS, with a strong focus on performance, maintainability, accessibility, and user-centered UI/UX.

My background includes modernizing legacy systems, mentoring teams, building CI/CD pipelines, and leading high-impact product delivery in Agile environments. I’m currently based in Auckland, New Zealand, and open to opportunities that combine technical leadership, architecture, and product excellence.

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My Skills

Core Engineering Skills

React.js, TypeScript, JavaScript (ES6+), Next.js, Vue.js, Svelte, HTML5, CSS3, SCSS 90%

Node.js, NestJS, Express, Java, Spring Boot, PHP, Laravel, REST APIs, GraphQL, WebSockets 85%

PostgreSQL, MySQL, Prisma, Redux, RTK, Zustand, TanStack Query, Context API, Vuex 80%

AWS, GCP, Firebase, GitHub Actions, Terraform, CI/CD, Docker, Jest, Playwright, Vitest 75%

Professional Strengths

Technical Leadership & Mentoring 95%

Modernization & Architecture Upgrade 95%

UI/UX Focused Front-End Delivery 92%

Problem Solving, Agile Delivery & Cross-Functional Collaboration 95%

Experience Journey

Oct 2025 - Present

Senior Front-End Developer, at 212F Labs

- Led modernization of loyalty platform admin applications by upgrading React 16 → 19, Redux → RTK, CRA → Vite, and JavaScript → TypeScript.
- Consolidated 20+ repositories into a scalable monorepo architecture and implemented GitHub Actions and AWS Amplify CI/CD pipelines.
- Built high-performance dashboards with virtualization, dynamic configuration, and smooth animations for large datasets.

Aug 2025 - Oct 2025

Web Developer (Volunteer), at Vision for Humanity Charitable Trust

- Developed React components using Material UI for responsive UI improvements.
- Integrated Strapi headless CMS for content and media management.
- Improved backend integration through Node.js APIs and maintained WordPress websites for performance and usability.

Mar 2023 - Dec 2025

Specialist Senior Software Engineer, at Optimum Infosolutions (M) Sdn Bhd

- Delivered end-to-end features across React, Vue.js, Node.js (NestJS), and PostgreSQL for projects such as PROPEL and DirectSales.
- Designed and optimized RESTful APIs and database queries, improved observability with Grafana, and contributed to CI/CD and code review practices.
- Played a key role in architecture decisions, mentoring engineers, and resolving production issues across UI and backend layers.

Jul 2021 - Feb 2023

Tech Lead, at EFutures (Pvt) Ltd

- Led front-end development teams, provided technical guidance, and owned sprint planning and estimations.
- Designed scalable frontend architecture and drove performance optimization across multiple applications.
- Delivered projects such as Qbrick and Borsdata using React, Redux, Next.js, TypeScript, and CI/CD pipelines.

Jul 2016 - Jul 2021

Senior Software Engineer, at Pearson

- Contributed to StatCrunch and modernized legacy PHP applications by introducing React.js and microservices architecture.
- Migrated infrastructure from on-premise data centers to AWS and improved performance, scalability, and user experience.
- Worked closely with US-based teams in an Agile environment to deliver business-critical enhancements.

Dec 2013 - Jul 2016

UI/UX Engineer, at EFutures (Pvt) Ltd

- Designed and developed responsive web interfaces based on client requirements and business goals.
- Created high-fidelity UI/UX prototypes and translated them into production-ready code.
- Built and maintained CMS-driven websites using WordPress, Drupal, and Magento with HTML5, CSS3, SCSS, JavaScript, jQuery, and Bootstrap.

Education Journey

Feb 2026

Claude Code in Action (Anthropic) (Certification)

Advanced AI-assisted development workflows and practical coding with Claude.

Apr 2021

UX Management: Strategy and Tactics (Certification)

Interaction Design Foundation.

Jan 2021

Become a UX Designer from Scratch (Certification)

Interaction Design Foundation.

2009 – 2012

Bachelor of Computer Science (HONS)

Universiti Industri Selangor | Batang Berjuntai, Selangor Darul Ehsan, Malaysia.

2007 - 2009

Foundation Information Technology