Professional CV

Jerome Thayananthajothy

Technical Lead | AI-Driven Systems Architect | AWS & Full-Stack Expert | Open Source Contributor

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Professional summary

I’m a Technical Lead and Generative AI Engineer focused on building intelligent, high-scale systems that merge traditional full-stack engineering with next-generation AI capabilities. Over the past decade, I’ve led architecture modernization initiatives across e-commerce, analytics, and workflow automation driving multimillion-pound cost reductions, boosting performance, and introducing AI-augmented features like semantic search and agentic workflows. I’m particularly interested in AI-enhanced infrastructure, multi-cloud orchestration (AWS, Azure, GCP), and scalable developer ecosystems. My engineering philosophy is rooted in system design, observability, and enabling teams to ship fast with confidence.

Experience

May 2026 - Present

Technical Lead

Sino Lanka Group, Colombo, Western Province, Sri Lanka

Leading architecture and engineering strategy for scalable business systems at Sino Lanka Group.

  • Guides architecture direction across full-stack systems and cloud delivery.
  • Focuses on reliable engineering practices and observability.

Oct 2025 - May 2026

Technical Lead

KAYA, Colombo

Led full-stack systems and AI workflow engineering for the KAYA platform and client-facing applications.

  • Designed AI workflow engines with LangGraph.
  • Led distributed application work across Kubernetes clusters.
  • Worked across Node.js, TypeScript, Laravel, and PostgreSQL.

Dec 2024 - Sep 2025

Technical Lead

Brompton Bicycle, Greenford, England, United Kingdom

Led architecture modernization by migrating from a fragmented multi-vendor headless stack (Vue Storefront + Alokai) to a unified Laravel + Vue.js 3 platform on AWS, cutting costs by £130K/month (~£1.56M/yr) and eliminating revenue-based fees.

  • Built an AI-powered full-text search engine, augmenting MySQL’s native capabilities with semantic and vector-based search for product discovery and analytics.
  • Integrated and orchestrated multi-stack systems, including MuleSoft for service orchestration and Oracle NetSuite for ERP synchronization and order lifecycle automation.
  • Reduced checkout latency from 4.2s → 1.5s (60%+ improvement), boosting conversion rates by 12%.
  • Shifted release cadence from monthly to biweekly and reduced technical debt by 30%, enforcing new internal architecture and CI/CD standards.

Jul 2023 - Dec 2024

Senior Software Engineer

NetWatch Global®, Birmingham, England, United Kingdom

Rebuilt and scaled up a mature 10-year-old project from scratch, ensuring enhanced performance and reliability.

  • Established and enforced industry standards for the engineering department and all company software, contributing to a more efficient and cohesive development process.
  • Worked extensively with PHP, TypeScript, VueJS, AWS DynamoDB, and MySQL/PostgreSQL, leveraging these technologies to deliver robust and scalable solutions.
  • Designed, developed, and deployed three major projects, each meeting critical business objectives and user needs.

Jun 2021 - Nov 2022

Senior Software Engineer

MacroActive™, Auckland, Auckland, New Zealand

Worked extensively with PHP, TypeScript, VueJS, ReactJS AWS Dynamo DB and MongoDB.

  • Designed, developed and deployed three major projects and was working on fourth project before resignation.
  • Responsibilities included but was not limited to training new recruits, performing code reviews and planning weekly sprints.

Jan 2020 - Jul 2020

Senior Software Engineer

Elegant Media Australia, Colombo, Western Province, Sri Lanka

Delivered client and platform features as a Senior Software Engineer at Elegant Media Australia.

  • Progressed from Software Engineer to Senior Software Engineer in January 2020.

Apr 2019 - Jan 2020

Software Engineer

Elegant Media Australia, Colombo, Western Province, Sri Lanka

Developed client and platform features as a Software Engineer at Elegant Media Australia.

  • Contributed to client-facing software before progressing to Senior Software Engineer.

Jan 2018 - Mar 2019

Software Engineer

Seven's Idea (PVT) Ltd, Colombo, Western Province, Sri Lanka

Built application features and client integrations as a Software Engineer at Seven's Idea.

  • Worked on both product features and client integration work.

Jan 2017 - Jan 2018

Software Engineer

Alta Vision Solar, Colombo, Western Province, Sri Lanka

Delivered business systems and web applications as a Software Engineer at Alta Vision Solar.

  • Progressed from Associate Software Engineer to Software Engineer in January 2017.

Oct 2016 - Dec 2016

Telecommunications Engineering Intern

Sri Lanka Telecom, Trincomalee, Eastern Province, Sri Lanka

Completed a telecommunications engineering internship at Sri Lanka Telecom in Trincomalee.

  • Returned to Sri Lanka Telecom for a second telecommunications engineering internship.

Oct 2015 - Jan 2016

Telecommunications Engineering Intern

Sri Lanka Telecom, Trincomalee, Eastern Province, Sri Lanka

Completed a telecommunications engineering internship at Sri Lanka Telecom in Trincomalee.

  • Gained early-career experience in telecommunications engineering.

Jun 2015 - Jan 2017

Associate Software Engineer

Alta Vision Solar, Colombo, Western Province, Sri Lanka

Built business systems and web applications as an Associate Software Engineer at Alta Vision Solar.

  • Progressed to Software Engineer at Alta Vision Solar in January 2017.

Core expertise

Engineering Leadership

Technical Staff Management

AI & Architecture

Artificial Intelligence (AI) · GenAI · Microservices

Full Stack

SOC · IAM · Search Engines · PostgreSQL · MuleSoft Anypoint Platform · Scrum · Agile Methodologies · MongoDB · Software Documentation · Web Applications · Managing Technical Personnel · Node.js · Inertia.js · React.js · .NET Framework · C# · Jira · GraphQL · Eloquent · RestAPI · Databases · SQL · Query · Cybersecurity · TypeScript · VueJS · GitHub · JavaScript Libraries · AJAX · JSON · JavaScript Frameworks · Mocha (JavaScript Framework) · Jest · JavaScriptMVC · Vanilla JavaScript · Server Side JavaScript · MySQL · Object-Oriented Programming (OOP) · PHP · JavaScript · Python · Algorithms · Computer Networking · Adobe Photoshop · Cascading Style Sheets (CSS) · WordPress · jQuery · HTML · Bootstrap · HTML5 · Laravel · Django · Vue.js · PhpStorm · PHP Applications · PHPUnit · PHP Frameworks · Emberfuse · Java · C++ · C · Go · JavaSE · Vue · Vuex · Nuxt.js · Symfony

Cloud & Delivery

Microsoft Azure · AWS · Amazon Web Services (AWS) · Cloud Computing

Selected open-source work

Fetch PHP

451 stars

Modern PHP HTTP client inspired by JavaScript's fetch API. Async/await, streaming, SSE, middleware, RFC 7234 caching, and full PSR-7/18 compliance.

Filterable

193 stars

Enhance Laravel queries with adaptable, customisable filters and intelligent caching to improve both performance and functionality.

phpvm

169 stars

Simple PHP version manager for MacOS and Linux.

Comet

156 stars

A cross-platform desktop app powered by FFmpeg for easy, beautiful media conversion.

Matrix

59 stars

Bringing JavaScript-style async to PHP! Manage asynchronous tasks with ease using a modern, fiber-powered API for seamless concurrency and error handling.

Education and credentials

Sep 2022 - Jul 2023

Bachelor of Science - BS

University of Sunderland

Aug 2020 - Mar 2022

Higher National Diploma

ICBT Campus

Jan 2001 - Jan 2014

High School

T/R.K.M.Sri Koneswara Hindu College

Oct 2025 - Oct 2028

AWS Certified Solutions Architect

Amazon Web Services (AWS)

Sep 2025 - Sep 2028

Amazon Web Services Cloud Practitioner

Amazon Web Services (AWS)

Mar 2019 - Present

Associate Member

Institution of Engineers Sri Lanka

Languages

English — Native or bilingual proficiency · Sinhala — Limited working proficiency · Tamil — Native or bilingual proficiency