Senior Software Engineer/Software Engineer - WSO2 PLC, Sri Lanka
2021-2024

WSO2 is the world's #1 open-source integration vendor, helping digitally driven organizations become integration agile. The company’s hybrid platform for developing, reusing, running, and managing integrations prevents lock-in through open-source software that runs on-premises or in the cloud.

I worked as Software Engineer from 2021 to 2023 and then promoted to Senior Software Engineer in 2023. I worked in the Ballerina team of around 70 employees.

Ballerina is an Open source, cloud-native programming language which runs on top of the JVM and optimized for integration.

• Developed and maintained HTTP2, gRPC, Kafka, RabbitMQ, FTP, MQTT libraries for Ballerina.
• Proactively worked on improving the performance of the libraries by researching new techniques and tools.
• Proficient in analysing runtime issues like OOMs, performance degradations, etc.
• Handled Ballerina major/minor releases from development to community release ensuring smooth product delivery.
• Worked on increasing code coverage, end-to-end testing, test automation of the developed libraries.
• Created a GitHub pipeline which runs load-tests in a Azure Kubernetes cluster to detect performance issues in the developed libraries using GitHub runners/actions.
• Successfully collaborated with the team in development aspects and led code reviews, effective source code management following open-source best practices.
• Worked with customers on POCs, demos, troubleshooting their production issues, etc.

Teaching Assistant - University of Moratuwa, Sri Lanka
2020

I worked as a Python teaching assistant for the Programming Fundamentals module in the Department of Computer Science & Engineering, University of Moratuwa.

Guided students in problem-solving strategies, effective design and implementation in programming languages, and troubleshooting their code.

Intern Software Engineer - DirectFN Technology Pvt Ltd, Sri Lanka
2019

DirectFN Technology Pvt Ltd is an award-winning Capital Market Solutions Provider in Sri Lanka with 23 years of experience specializing in digital maturity for FinTech solutions and providing services to brokerage firms, banks, clearing members, and wealth/asset managers across 20+ countries.

I worked in the NTP (Next Trading Platform) team which was researching and developing a much efficient and faster trading platform for the company.

• Contributed in developing a server monitoring tool which monitors advanced information about stock market orders and server components using Python, Node.js and Angular.
• Developed a log parsing system utilizing Elasticsearch stack to predict upcoming downtimes in the servers using server logs.

Freelancer - Fiverr
2020-2021

Worked as a freelancer with clients across many different countries & regions including USA, Europe, UK, Australia.

• Offered services related to data conversion.
• Transformed large datasets seamlessly across JSON, CSV, YAML, XLSX, and XML formats.
• Mainly used Python for writing scripts and different Python libraries (csv, xml, xlsx, pandas) for data manipulation.

Sinhala and english document alignment using statistical machine translation
2020-2021

This was a research done in the final year of my Bachelor's degree as a group research task.

Neural machine translation systems for low-resource languages often yield suboptimal results due to the limited availability of large parallel datasets. To address this issue, parallel corpora can be mined from the web. In a parallel corpus mining pipeline, two essential tasks are aligning web documents and aligning sentences. Effective approaches to these tasks involve obtaining vector representations of documents (or sentences) in both languages and determining alignment based on a semantic similarity scoring mechanism. Our research focused on optimizing the existing solutions and finding novel techniques for this.

With regard to our work, 2 research papers have been published.

• Sinhala and english document alignment using statistical machine translation
• Exploiting bilingual lexicons to improve multilingual embedding-based document and sentence alignment for low-resource languages