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Madhura Jayashanka

All Projects

A collection of full-stack applications, robust APIs, and scalable cloud solutions I've built. Focusing on problem-solving and delivering measurable real-world impact.

Experience

WhereI'veWorked

2+ years owning production systems end-to-end across React, Node.js, and PostgreSQL.

AT

Adalex Technologies

Software EngineerAug 2024 — Present
Remote, Full-time

Owned the full product lifecycle for AppliedExams.lk (15,000+ students) and Glitz&Clicks (70+ paying customers). Sole engineer from database schema through production deployment.

Owned the full product lifecycle for AppliedExams.lk, a full-stack LMS grown to 15,000+ students – sole engineer from database schema through production deployment; introduced TDD and integration test suites to prevent regressions
Engineered Glitz&Clicks, a serverless PWA with 70+ paying customers – integrated Stripe and PayHere with subscription lifecycle management, webhook reconciliation, and zero-leakage payment handling
Built event-driven backends with SQS, DynamoDB Streams, and Lambda; enforced CI/CD pipelines with automated test gates (GitHub Actions)
Secured multi-tenant applications using AWS Cognito – RBAC, federated identity, and session lifecycle management
EN

Enlear

Associate Software EngineerAug 2025 — Nov 2025
Part-time Contract

Deployed multi-agent AI workflows on AWS Bedrock with cross-service orchestration, cutting manual review turnaround time by ~80%.

Deployed multi-agent AI workflows on AWS Bedrock with cross-service orchestration, fully automating a manual review process and cutting turnaround time by ~80%
Implemented enterprise-grade authentication (Microsoft Entra ID, AWS Cognito, Amplify) – federated SSO, RBAC, and session management for regulated-access environments
Architected SQS and DynamoDB Streams pipelines for high-throughput event processing with sub-second latency targets
RC

Rootcode Labs

Software Engineering Intern – AI TeamFeb 2025 — Aug 2025
Full-time

Part of the NBQSA 2025 Gold Award winning team. Architected systems scaling to 8M+ users. Built React Native mobile frontend for European government platform.

Architected pub/sub messaging and SSE layer for an AI chatbot platform scaling to 8M+ users – GCP Pub/Sub, Redis, FastAPI, Docker, Cloud Run
Delivered a real-time SSE alert system for Porto Government (Clamigo) using Lambda, DynamoDB Streams, EC2, and SQS – part of the NBQSA 2025 Gold Award winning team
Built the complete React Native mobile frontend for a European government smart city platform – REST API integration, screen design, and offline state management
Delivered a Cloud Community talk on serverless content moderation with AWS
Represented Rootcode's AI team at NBQSA 2025
ML

Macro Labs (Derana)

Software Engineering InternJun 2024 — Sep 2024
Full-time

Built Go/NestJS Media Service microservice on AWS ECS. Developed SEO-optimized Next.js UI for a United Nations networking platform.

Built a Go/NestJS Media Service microservice on AWS ECS with auto-scaling, S3 lifecycle policies, and ArgoCD-managed GitOps pipelines; enforced code quality with Qodana
Developed SEO-optimized Next.js UI components for a United Nations networking platform meeting all Core Web Vitals targets across browsers
Projects

SelectedWork

Projects that solve real problems with measurable impact