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"I am a results-driven Full-Stack Engineer with over 4 years of experience specializing in building scalable, AI-enabled web applications. With a First Class Honours degree in Computer Science (GPA 4.0), I combine deep theoretical knowledge with hands-on expertise in modern frameworks like React, Next.js, Angular, and Node.js. My core strength lies in bridging the gap between standard web development and cutting-edge AI. I have a proven track record of integrating OpenAI APIs and LangChain to create intelligent systems, such as conversational assistants and automated content generators. Why Hire Me? • Full-Stack Expertise: Proficient in the entire development lifecycle, from responsive UI design (Tailwind/Material UI) to robust backend architectures (Node.js/Python/Spring Boot). • AI & Automation Specialist: Experienced in building AI-powered platforms like 'Ashogu' and vehicle event systems that significantly reduce manual workloads. • Cloud & DevOps Savvy: Skilled in deploying production-grade solutions on AWS, Azure, and Firebase with Docker and CI/CD pipelines to ensure >99% uptime. • Proven Impact: I have helped businesses reduce backend latency by 35% and automate up to 60% of manual review tasks. Whether you are a startup looking for an MVP or an enterprise needing a scalable AI solution, I am dedicated to delivering high-quality, high-performance code that drives results."…"I am a results-driven Full-Stack Engineer with over 4 years of experience specializing in building scalable, AI-enabled web applications. With a First Class Honours degree in Computer Science (GPA 4.0), I combine deep theoretical knowledge with hands-on expertise in modern frameworks like React, Next.js, Angular, and Node.js. My core strength lies in bridging the gap between standard web development and cutting-edge AI. I have a proven track record of integrating OpenAI APIs and LangChain to create intelligent systems, such as conversational assistants and automated content generators. Why Hire Me? • Full-Stack Expertise: Proficient in the entire development lifecycle, from responsive UI design (Tailwind/Material UI) to robust backend architectures (Node.js/Python/Spring Boot). • AI & Automation Specialist: Experienced in building AI-powered platforms like 'Ashogu' and vehicle event systems that significantly reduce manual workloads. • Cloud & DevOps Savvy: Skilled in deploying production-grade solutions on AWS, Azure, and Firebase with Docker and CI/CD pipelines to ensure >99% uptime. • Proven Impact: I have helped businesses reduce backend latency by 35% and automate up to 60% of manual review tasks. Whether you are a startup looking for an MVP or an enterprise needing a scalable AI solution, I am dedicated to delivering high-quality, high-performance code that drives results."

Geethika Sewwan di

Full Stack Developer, AI Developer, AI Engineer, +6

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"I am a results-driven Full-Stack Engineer with over 4 years of experience specializing in building scalable, AI-enabled web applications. With a First Class Honours degree in Computer Science (GPA 4.0), I combine deep theoretical knowledge with hands-on expertise in modern frameworks like React, Next.js, Angular, and Node.js. My core strength lies in bridging the gap between standard web development and cutting-edge AI. I have a proven track record of integrating OpenAI APIs and LangChain to create intelligent systems, such as conversational assistants and automated content generators. Why Hire Me? • Full-Stack Expertise: Proficient in the entire development lifecycle, from responsive UI design (Tailwind/Material UI) to robust backend architectures (Node.js/Python/Spring Boot). • AI & Automation Specialist: Experienced in building AI-powered platforms like 'Ashogu' and vehicle event systems that significantly reduce manual workloads. • Cloud & DevOps Savvy: Skilled in deploying production-grade solutions on AWS, Azure, and Firebase with Docker and CI/CD pipelines to ensure >99% uptime. • Proven Impact: I have helped businesses reduce backend latency by 35% and automate up to 60% of manual review tasks. Whether you are a startup looking for an MVP or an enterprise needing a scalable AI solution, I am dedicated to delivering high-quality, high-performance code that drives results."…"I am a results-driven Full-Stack Engineer with over 4 years of experience specializing in building scalable, AI-enabled web applications. With a First Class Honours degree in Computer Science (GPA 4.0), I combine deep theoretical knowledge with hands-on expertise in modern frameworks like React, Next.js, Angular, and Node.js. My core strength lies in bridging the gap between standard web development and cutting-edge AI. I have a proven track record of integrating OpenAI APIs and LangChain to create intelligent systems, such as conversational assistants and automated content generators. Why Hire Me? • Full-Stack Expertise: Proficient in the entire development lifecycle, from responsive UI design (Tailwind/Material UI) to robust backend architectures (Node.js/Python/Spring Boot). • AI & Automation Specialist: Experienced in building AI-powered platforms like 'Ashogu' and vehicle event systems that significantly reduce manual workloads. • Cloud & DevOps Savvy: Skilled in deploying production-grade solutions on AWS, Azure, and Firebase with Docker and CI/CD pipelines to ensure >99% uptime. • Proven Impact: I have helped businesses reduce backend latency by 35% and automate up to 60% of manual review tasks. Whether you are a startup looking for an MVP or an enterprise needing a scalable AI solution, I am dedicated to delivering high-quality, high-performance code that drives results."

Available to hire

“I am a results-driven Full-Stack Engineer with over 4 years of experience specializing in building scalable, AI-enabled web applications. With a First Class Honours degree in Computer Science (GPA 4.0), I combine deep theoretical knowledge with hands-on expertise in modern frameworks like React, Next.js, Angular, and Node.js.
My core strength lies in bridging the gap between standard web development and cutting-edge AI. I have a proven track record of integrating OpenAI APIs and LangChain to create intelligent systems, such as conversational assistants and automated content generators.
Why Hire Me?
• Full-Stack Expertise: Proficient in the entire development lifecycle, from responsive UI design (Tailwind/Material UI) to robust backend architectures (Node.js/Python/Spring Boot).
• AI & Automation Specialist: Experienced in building AI-powered platforms like ‘Ashogu’ and vehicle event systems that significantly reduce manual workloads.
• Cloud & DevOps Savvy: Skilled in deploying production-grade solutions on AWS, Azure, and Firebase with Docker and CI/CD pipelines to ensure >99% uptime.
• Proven Impact: I have helped businesses reduce backend latency by 35% and automate up to 60% of manual review tasks.
Whether you are a startup looking for an MVP or an enterprise needing a scalable AI solution, I am dedicated to delivering high-quality, high-performance code that drives results.”

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Sinhala, Sinhalese

Advanced

Work Experience

Software Engineer at DDI Labs

January 1, 2023 - Present

Full-stack development and AI-driven solutions across mobile and web platforms using Flutter, Angular, React, Azure, and Firebase. Led cloud deployments and test automation; contributed to enterprise platform improvements and payment gateway integrations across cross-border projects. Delivered scalable, reliable software for clients in Australia, Sri Lanka, the UK, and the UAE.

AI Chatbot Developer at Upwork

January 1, 2023 - Present

Designed and deployed custom AI chatbot solutions using Python, Flask and OpenAI APIs, integrating LangChain and LLMS workflows; enabled multi-language support and seamless user interactions in freelance projects.

AI Assistant Platform Developer at Ashogu

January 1, 2023 - Present

Built a multi-language AI assistant platform with LLMS workflows using Angular, Flask, OpenAI, and MongoDB; supported real-time chat, prompts, and AI features for UK-based platform.

Software Engineer at Parkease

January 1, 2024 - Present

Implemented a complete Stripe payment gateway integration in a React/Node.js stack, delivering secure and seamless payment flows for an Australia-based platform.

Software Engineer at DDI Labs

January 1, 2023 - Present

Flutter, Angular, React, Azure, Azure DevOps, Firebase; contributed to multiple projects including Smash Repair, Gamuda, Baia da, Corsight Automation; delivered AI-driven, cloud-based, and automation solutions across mobile and web platforms.

Software Engineering Intern at Grubtech

September 20, 2023 - Present

Dockerized Spring Boot applications; CI/CD via CircleCI; SonarQube; JUnit; Mockito; React; Redux; Kafka; AWS EC2; AWS Lambda; S3; DynamoDB; Flutter; Git.

AI Chatbot Developer at Upwork

January 1, 2023 - Present

Designed and deployed custom AI chatbot solutions using Python (Flask, LangChain, Hugging Face, OpenAI APIs).

AI Assistant Platform Developer at Ashogu

January 1, 2023 - Present

Built a multi-language AI assistant platform (Angular, Flask, Python) leveraging OpenAI APIs and MongoDB.

Full Stack Developer at Parkease

January 1, 2024 - Present

Implemented a complete Stripe payment gateway integration (React, Node.js); delivered secure, seamless payment flows.

Software Engineer at DDI Labs

January 1, 2023 - Present

Software Engineer at DDI Labs delivering cross-platform solutions with Flutter, Angular, and React; cloud deployments on AWS/Azure and Firebase; AI-driven enhancements across enterprise projects; contributed to automated testing and scalable IT solutions.

Associate Software Engineer & AI Developer at Gazru (Pvt) Ltd

January 1, 2023 - Present

OpenAI, LLMs, LangChain, vector databases, Python, Angular, prompt engineering, and AWS; developing AI-enabled features and cloud-based solutions across platforms.

AI Chatbot Developer at Upwork

January 1, 2023 - Present

Designed and deployed custom AI chatbot solutions using Python (Flask, LangChain, Hugging Face, OpenAI APIs).

Software Engineer Intern at Grubtech

September 20, 2023 - October 21, 2025

Dockerized Spring Boot applications for faster deployments via CircleCI pipelines; backend API testing and reliability improvements.

AI Chatbot Developer at Upwork

January 1, 2023 - Present

Designed and deployed custom AI chatbot solutions using Python (Flask, LangChain, Hugging Face, OpenAI APIs).

Software Engineer at Parkease

January 1, 2024 - Present

Implemented a paygate-integrated hiring and interviewing platform using React and Node.js; Stripe integration; ensured secure and seamless payment flows.

Software Engineer at CountIQ

January 1, 2025 - Present

Developed an Event Monitoring System with Azure Functions, Event Hub, and backend APIs; captured events and integrated with backend systems.

Software Engineer at DDI Labs Pty Ltd

January 1, 2023 - January 1, 2023

Worked on multiple production-level projects spanning web, AI, and cloud domains for clients in Australia. Developed and maintained multi-tenant applications using Angular, React, and TypeScript; 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 Event Hub for telemetry monitoring. Implemented Stripe & PayDock payment integrations for enterprise clients (Gamuda, Baida). Integrated OpenAI API and LangChain for conversational intelligence; managed deployments with Docker + Azure DevOps CI/CD, achieving uptime > 99%.

Software Engineering Intern at Grubtech

December 31, 2023 - December 31, 2023

Created a Kafka-based 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 to enhance production reliability.

Full-Stack AI Developer (Freelance) at Upwork / Personal Projects

January 1, 2023 - January 1, 2023

Designed and implemented AI-driven full-stack applications using Next.js, Prisma, Neon, MongoDB. Built dashboards and automation tools, integrated OpenAI APIs and LangChain, and delivered robust, scalable solutions for global clients.

Senior Software Engineer at EFutures

January 1, 2025 - Present

Built and maintained Node.js backend services on AWS, working with SQL databases, REST APIs, and cloud integrations for the award-winning project “Sinque”.

Software Engineer Internship at Grubtech, UAE

January 1, 2023 - Present

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.

Software Engineer at Gazru (Pvt) Ltd, Sri Lanka

January 1, 2023 - Present

Built Ashogu, a multi-tenant AI web platform (Angular + Flask + Python + OpenAI + MongoDB). Implemented LangChain-based automation improving chatbot accuracy by 25%.

Freelance Full-Stack & AI Developer at Upwork / Personal Projects

January 1, 2021 - Present

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. Delivered responsive, secure, scalable solutions to global clients.