Software Engineer Intern · WSO2
Yasith
Rashan
Bienvenidos al portafolio oficial de Yasith Rashan
I build intelligent developer tools and AI-powered systems — currently working on the Ballerina AI Copilot at WSO2.
About
Crafting Digital
Experiences
I'm a Computer Science undergraduate and Software Engineering Intern with a strong interest in AI — driven by the power of technology to transform ideas into reality.
Experience
Software Engineering Intern
WSO2
Working with the Ballerina AI team to develop AI-powered features for the Ballerina programming language and developer tools.
- —Developed Elastic Cloud connector for Ballerina
- —Working on a code indexing system for Ballerina Copilot using compiler APIs and vector embeddings to reduce LLM token usage
- —Contributed to the Ballerina AI Copilot project
Education
BSc (Hons) in Computer Science
IIT / University of Westminster
Focusing on algorithms, full-stack development and maintaining a strong academic record while entering coding competitions and hackathons.
- —Specializing in algorithms, data structures, and server-side concepts
- —Focused on software engineering principles and system design
Foundation Certificate in Higher Education
Informatics Institute of Technology
Foundation programme covering core Computer Science, Mathematics and Engineering concepts with hands-on coding and research methodology.
- —Strong foundation in mathematics, programming, and computer science theory
- —Achieved Merit Pass with excellence in practical projects
Portfolio
Featured
Projects
Code Indexing for Ballerina Copilot
- —Implemented intelligent code indexing system to reduce token usage and improve LLM response relevance
- —Implemented a custom Language Server CodeMap API using the Ballerina compiler AST to overcome limitations of the default Artifacts API.
- —Integrated embedding-based similarity search with vector database for context-aware code selection
Push Ballerina Copilot Insights into Application Insights
- —Designed and implemented comprehensive telemetry solution for Ballerina VS Code extension
- —Integrated VS Code Telemetry API to track AI-powered feature metrics and user interactions
- —Deployed analytics pipeline with Azure Application Insights for real-time monitoring and insights
Ballerina Elasticsearch Connector
- —Created a Ballerina Elasticsearch connector for WSO2 using ballerinax/elastic.elasticcloud
- —Integrated with Elastic Cloud APIs for cluster, security, and data operations
- —Enabled scalable search and analytics for enterprise deployments
Blog
Latest
Articles
Supercharge Your Search and Analytics with Ballerina's Elastic Cloud Connector
Easily connect your Ballerina applications to Elasticsearch on Elastic Cloud and unlock fast, powerful search and analytics.
How GitHub Copilot Knows Your Code: Inside Its Indexing Magic
A technical breakdown of Copilot's code indexing, from remote searches and local embeddings to TF-IDF.