Full-Stack Engineer & Associate Technical LeadScalable, Cost-Optimized Cloud Platforms

React · Redux · Node.js · Express · PostgreSQL · AWS · Hybrid, Colombo, Sri Lanka

Leading a full-stack squad — owning planning, technical direction, code review and delivery while raising the engineering quality bar.

• Own platform reliability and observability — real-time monitoring built on AWS SQS failure-queue analysis, automated Slack alerts, and custom CloudWatch alarms that surface processing failures and delays as they happen.
• Resolved 500+ data-quality issues by designing and rolling out a platform-wide event-tracking process.
• Cut recurring cloud spend across 45 client environments by deduplicating AWS Secrets Manager calls, trimming CloudWatch log volume, and optimizing core Node.js event handlers to reduce paid third-party API usage.
• Lead a full-stack React and Node.js/Express squad across planning, technical direction, and code review, driving independent feature ownership across the team.
• Mentor engineers on React and Node.js architecture, coding standards, and advanced Git workflows.

React · Redux · Node.js · Express · PostgreSQL · AWS · Hybrid, Colombo, Sri Lanka

Led performance engineering and enterprise integrations end to end across React, Node.js and AWS.

• Improved throughput 11x and reduced external API calls by 99% by redesigning the Node.js data-synchronization process, resolving a six-month bottleneck in the legacy system.
• Re-architected AWS SES email infrastructure for tenant-level isolation in three days on Node.js Lambda, sustaining 60,000 sends per run with no failures.
• Delivered enterprise data integrations (Stripe, Mixpanel, Snowflake) end-to-end across React UIs and Node.js services, using AI-assisted workflows to cut delivery time by 3–4 days per integration.
• Tripled real-time sync speed in the Intercom integration, better supporting large enterprise customers.
• Closed critical findings from external security audits and completed internal security challenges.
• Optimized AWS costs by replacing FIFO queues with Standard queues for event-driven syncs where event processing order is not required.

React · Redux · Node.js · Express · PostgreSQL · AWS · Hybrid, Colombo, Sri Lanka

Owned email deliverability and engagement features on a serverless AWS stack.

• Built an email analytics dashboard in React and Chart.js, with metric computation on AWS Lambda, to track engagement and improve deliverability.
• Implemented Gmail-compliant one-click unsubscribe, improving sender reputation and delivery performance.
• Researched and developed the platform's bulk email verification to mitigate email reputation issues.
• Reduced infrastructure costs by migrating core services and event-handler templates to serverless on AWS Lambda.
• Owned production deployments and releases — release notes, documentation, and testing.

React · Redux · Node.js · Express · PostgreSQL · AWS · Hybrid, Colombo, Sri Lanka

Where the Velaris journey began — building the backend services behind new platform features.

• Built scalable Express.js REST services and PostgreSQL schemas with optimized tables and indexing, in an Agile team.
• Built a full-featured marketing email system powered by AWS SES and React, bypassing Gmail integration constraints and adhering strictly to GDPR compliance standards.
• Automated QA cases previously considered impossible with Python and Jupyter test scripts, saving the QA team significant time.
• Raised code coverage with Jest unit tests that catch regressions before release.

Angular · Ionic · Express.js · Spring Boot · Colombo, Sri Lanka

Built proof-of-concept systems across cloud, desktop and mobile.

• Built POC systems for cloud and desktop environments using Angular, Express.js, Spring Boot, and Bootstrap.
• Developed key features for Intahub's first mobile POS application using Angular and the Ionic Framework.

React · Redux · Node.js · GraphQL · MongoDB · Galle, Sri Lanka

First role — focused on pixel-perfect frontend delivery.

• Built a student registration system and dashboard using React, Redux, Node.js, GraphQL, and MongoDB.
• Automated scheduled email notifications using AWS SES.
• Developed responsive frontend interfaces from design specifications, matching them pixel for pixel.