Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

Hands-on lead full stack developer with 8+ years delivering complex web applications and shipping production features daily. Experienced in JavaScript/TypeScript and PHP stacks, leading teams while also owning end-to-end development across frontend, backend, and deployment. Architected and deployed autonomous multi-agent AI systems with production safety controls and measurable outcomes for enterprise clients. Known for strong engineering practices (Agile, TDD, CI/CD, code reviews) and integrations spanning SSO, payments, and third-party enterprise tooling.…Hands-on lead full stack developer with 8+ years delivering complex web applications and shipping production features daily. Experienced in JavaScript/TypeScript and PHP stacks, leading teams while also owning end-to-end development across frontend, backend, and deployment. Architected and deployed autonomous multi-agent AI systems with production safety controls and measurable outcomes for enterprise clients. Known for strong engineering practices (Agile, TDD, CI/CD, code reviews) and integrations spanning SSO, payments, and third-party enterprise tooling.

Harsh Karunatillake

Full Stack Developer, Web Developer, Programmer, +2





Hands-on lead full stack developer with 8+ years delivering complex web applications and shipping production features daily. Experienced in JavaScript/TypeScript and PHP stacks, leading teams while also owning end-to-end development across frontend, backend, and deployment. Architected and deployed autonomous multi-agent AI systems with production safety controls and measurable outcomes for enterprise clients. Known for strong engineering practices (Agile, TDD, CI/CD, code reviews) and integrations spanning SSO, payments, and third-party enterprise tooling.…Hands-on lead full stack developer with 8+ years delivering complex web applications and shipping production features daily. Experienced in JavaScript/TypeScript and PHP stacks, leading teams while also owning end-to-end development across frontend, backend, and deployment. Architected and deployed autonomous multi-agent AI systems with production safety controls and measurable outcomes for enterprise clients. Known for strong engineering practices (Agile, TDD, CI/CD, code reviews) and integrations spanning SSO, payments, and third-party enterprise tooling.

Available to hire

Hands-on lead full stack developer with 8+ years delivering complex web applications and shipping production features daily. Experienced in JavaScript/TypeScript and PHP stacks, leading teams while also owning end-to-end development across frontend, backend, and deployment.

Architected and deployed autonomous multi-agent AI systems with production safety controls and measurable outcomes for enterprise clients. Known for strong engineering practices (Agile, TDD, CI/CD, code reviews) and integrations spanning SSO, payments, and third-party enterprise tooling.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Work Experience

Lead Developer — Web Intelligence at Web Intelligence

May 1, 2023 - Present

Led a 10-person development team managing 15+ active projects and 13+ retainer clients with 100+ hosting accounts. Introduced Agile/Scrum, peer code reviews, and mentorship, reducing turnaround time by 30% and post-release bugs by 25%. Served as primary technical bridge between client stakeholders and the engineering team. Architected and deployed an autonomous multi-agent “digital employee” platform for content, SEO, and publishing end-to-end. Initially operated via a self-hosted gateway with scheduled pipelines, then migrated to Cloudflare Agents using a model-agnostic AI Gateway for provider-swappable LLM routing. Implemented approval-gated execution to prevent autonomous changes to live sites. Built per-client data isolation using encrypted storage and integrated production tooling via MCP servers (e.g., SEMrush, ClickUp, Mailchimp, Cloudways/Coolify). Delivered measurable outcomes including automated structured data, a live email newsletter program, and ~90% brand visibility

Senior Developer — Web Intelligence at Web Intelligence

May 1, 2019 - April 30, 2023

Architected and delivered a multi-tenant enterprise assessment platform serving 10,200+ users across 10+ corporate clients. Developed a dynamic benchmarking engine providing real-time percentile ranking. Implemented secure payment gateways ensuring PCI-DSS compliance across multiple platforms. Built OAuth 2.0 and SAML SSO integrations for enterprise authentication, and automated deployments with CI/CD pipelines. Optimized performance with CDN and load balancing. Applied Test Driven Development (TDD) across alpha/beta/production releases.

Developer — Web Intelligence at Web Intelligence

May 1, 2017 - April 30, 2019

Built full-stack web applications using LAMP (PHP, MySQL, Apache, Linux). Delivered 50+ custom WordPress themes/plugins and CMS architectures across 8+ industry sectors. Implemented REST API integrations and third-party service connections, collaborating with designers to deliver responsive, cross-browser compliant interfaces.

Intern Developer at Deakin University

July 1, 2016 - September 30, 2016

Designed and launched the MVP for the Virtual Career Center.

Junior Developer at Arimac Lanka Pvt Ltd

December 1, 2014 - June 30, 2015

Built responsive frontend interfaces and collaborated with UI/UX designers on client projects.