Geethika Sewwandi

• Built and maintained Node.js backend services on AWS, working with SQL databases, REST APIs, and
cloud integrations for the award-winning project Sinque.
• Ensured scalability, reliability, and performance while collaborating with cross-functional teams.

• Designed custom AI chatbots using Python, LangChain, and OpenAI APIs for automation.
• Built full-stack apps with Next.js + Prisma + Neon + Node.js + MongoDB.
• Created dashboards and automation tools integrated with AWS and Firebase.

• Developed and maintained multi-tenant apps using Angular, React, and TypeScript, improving
client UX and performance.
• Integrated Azure Functions and REST APIs for event processing and automation, reducing backend
latency by 35%.
• Delivered AI-enabled vehicle event system (Flutter + Firebase) cutting manual inspection time by
40%.
• Built real-time dashboards with React + Node.js + Azure EventHub for telemetry monitoring.
• Implemented Stripe & PayDock payment integrations for enterprise clients (Gamuda, Baiada).
• Integrated OpenAI and LangChain modules for conversational intelligence.
• Managed deployments with Docker + Azure DevOps CI/CD, maintaining >99 % uptime.

• Built Ashogu, a multi-assistant AI web platform (Angular + Flask + Python + OpenAI + MongoDB).
• Implemented LangChain-based automation improving chatbot accuracy by 25 %.
• Deployed scalable microservices on AWS Elastic Beanstalk with automated CI/CD.
• Collaborated with global teams delivering AI features for UK and Sri Lanka clients

• Created Kafka-based monitoring dashboard (React + Redux) reducing issue detection time by 50 %.
• Automated deployments via CircleCI and containerized Spring Boot services with Docker.
• Worked on APIs using AWS Lambda, DynamoDB, and S3 for production reliability.
• Enhanced microservice testing and quality with JUnit & SonarQube.