Hello, I'm

Arvin
Premathilake

Software Engineering undergraduate at NSBM Green University affiliated with University of Plymouth, UK. I build full-stack web, mobile applications, and intelligent autonomous AI Agents (RAG architecture, multi-agent systems, LLM integrations), available for freelance client projects.

BSc (Hons) Software Engineering First Class Honours
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Arvin Premathilake
FlutterReactNext.jsAI AgentsGemini AIRAG SystemsJavaNode.jsFirebaseTypeScriptDartSpring BootDocker
Expertise AI Capable

Skills & Technologies

A comprehensive overview of my technical stack across full-stack engineering, mobile platforms, and modern AI tools & RAG workflows.

Programming Languages

JavaDartJavaScriptTypeScriptCC#PHPSQL

Mobile & Frameworks

FlutterFlutter SDKAndroid SDKASP.NETReact Native

Web Technologies

ReactNext.jsHTML5CSS3BootstrapAngularNode.jsExpress

AI Tools & LLM Integration

RAG ArchitectureGemini APIOpenAI / ClaudePrompt EngineeringAI Agent DevelopmentLangChain

Databases & Cloud

FirebaseSupabaseMySQLMSSQLMongoDB

Tools & DevOps

GitGitHubDockerVS CodeAndroid StudioNetBeansVisual Studio

Soft Skills & Methods

LeadershipTeamworkCommunicationProblem SolvingAgile / Scrum
Certifications & Credentials
Introduction to Terraform on Azure
Microsoft Learn2024
MS Champs - January Chapter
Microsoft Student Ambassadors2026

Career

Where I've Worked

My professional journey building real-world software solutions.

Available for Hire

Freelance & Client Services

I take on client projects alongside my studies. Whether you need a mobile app, a full-stack web platform, or AI / RAG integration — let's build something impactful.

Mobile Development

Cross-platform Flutter apps for iOS & Android with sleek UI/UX and real-time Firebase backends.

  • Flutter & Dart
  • Firebase / Supabase
  • REST API integration
  • Store Deployment

Web Development

Full-stack web applications using React, Next.js and Node.js. Clean, fast, and SEO-friendly.

  • React / Next.js
  • Node.js & Express
  • Responsive design
  • Speed Optimized

AI Agents & RAG Solutions

Autonomous AI Agents, multi-agent workflows, context-aware RAG systems, and Gemini/OpenAI API integrations for scalable businesses.

  • Autonomous AI Agents
  • Multi-Agent Workflows
  • RAG Knowledge Systems
  • Gemini & LLM Tool Use

Backend & Cloud APIs

Robust REST APIs, database architecture and cloud integrations for web and mobile platforms.

  • Java Spring Boot
  • Express & Node.js
  • MySQL / Firebase
  • Docker & CI/CD

Have a project or client enquiry?

I'm ready for new freelance collaborations. Share your requirements and let's bring your project to life.

Let's Talk

Personal Work

Individual Projects

Projects I've built independently - showcasing full-stack development, mobile apps, and creative problem solving.

Open Source

GitHub Repositories

A selection of my public repositories - from final year projects to tools and experiments.

Contact

Let's Work Together

Have a project in mind, a freelance opportunity, or just want to say hello? I'd love to hear from you.

Send a Message