9+ years in the engine room. Designing and shipping the cloud infrastructure, distributed backends, and AI systems that ambitious products run on. Built to hold.
01 / Experience
Joined as a contractor through TEKsystems and converted to permanent staff within six months. Leading the decomposition of a large monolithic system into a distributed microservices architecture on Azure, delivering a measurable 70% performance improvement while keeping traffic routing seamless for end users.
Served as team lead and architect for a high-impact CRM integration initiative, building a fully autonomous company workflow connecting HubSpot, Podio, Zapier, Sage, and more. Independently architected and shipped an AI-driven chat-based lead generator using Azure OpenAI — delivering enterprise-grade automation at minimal cost. Mentored junior engineers and owned end-to-end delivery across multiple client projects.
Delivered full-stack engineering on complex enterprise software products. Worked across the stack to build scalable, production-grade features while collaborating closely with cross-functional teams in a fast-paced product environment.
Six-year tenure progressing from junior engineer to senior. Led two greenfield projects from concept to production for major Canadian healthcare providers. Spearheaded a full re-architecture of a legacy ASP WebForms platform — migrating from on-premise infrastructure to a cloud-managed, modular, secured system — resulting in a 75% performance improvement, 40% cost reduction, and support for 5,000+ concurrent users.
02 / Selected work
Lead Architect & Developer
An end-to-end intelligent sales automation platform built from scratch. The system initiates prospect outreach, conducts multi-turn AI-driven conversations to qualify leads, then autonomously coordinates all downstream activity — scheduling, task assignment, progress tracking, and client communication — with minimal human touch. People step in only where judgment matters.
Lead Architect
Mission-critical audit management system for major Canadian healthcare providers. Inherited a brittle .NET 4 WebForms monolith on-premise and re-architected it end-to-end: full AWS migration, decomposed into secured microservices, with modern observability throughout. Outcomes: 75% performance improvement, 40% cost reduction, 5,000+ concurrent users.
Lead Engineer
A fully integrated SaaS platform purpose-built for law firms — one subscription covering everything. Web application, mobile app, desktop client, and a secure client portal all under a single unified platform. Currently live and in active feature rollout.
Lead Engineer
An intelligent onboarding platform that automates the entire new-hire journey. Handles account provisioning, delivers personalized training sequences tailored to each role, and guides employees through a structured pre-staging process until fully work-ready — all AI-driven with minimal HR involvement. Eliminates manual steps and compresses time-to-productivity.
03 / Toolkit
Grouped by where they live in the system. Pick a layer to see what I reach for.
Four AI systems shipped to production so far: an autonomous sales engine, an Azure OpenAI lead generator built solo at minimal cost, an end-to-end employee onboarding system, and an in-app assistant inside a live SaaS platform. RAG pipelines, vector search, and agent orchestration are the muscle underneath; prompt engineering and evaluation are how I keep them honest.
04 / Research & credentials
IEEE Xplore · 2022
S.A.M.A.S. Senanayaka · R.A.D.B.S. Perera · W. Rankothge · S.S. Usgalhewa · H.D. Hettihewa · P.K.W. Abeygunawardhana
Research into real-time, continuous ASL recognition using computer vision and deep learning. Addresses the challenge of interpreting continuous sign sequences — not just isolated gestures — with the goal of building more inclusive human-computer interaction systems.
Read on IEEE Xplore ↗Certifications
05 / Contact
I take on senior engineering and architecture work — backend systems, cloud infrastructure, AI integrations. Drop me a line if something fits.