Hi there! I am Sahan Pathirannahalage, a Lead Full Stack Developer with 3 years and 7 months of hands-on experience delivering and operating production-grade systems. I value ownership, pragmatic decision-making, and delivering high-quality software in fast-moving teams. I also enjoy mentoring junior engineers and contributing to pragmatic, scalable solutions. I thrive in cross-functional environments, collaborating with product and design to ship robust features. I’m comfortable learning new technologies quickly and I aim to build scalable, reliable software that truly helps users, while keeping performance, maintainability, and clear communication at the forefront.

Sahan Pathirannahalage

Hi there! I am Sahan Pathirannahalage, a Lead Full Stack Developer with 3 years and 7 months of hands-on experience delivering and operating production-grade systems. I value ownership, pragmatic decision-making, and delivering high-quality software in fast-moving teams. I also enjoy mentoring junior engineers and contributing to pragmatic, scalable solutions. I thrive in cross-functional environments, collaborating with product and design to ship robust features. I’m comfortable learning new technologies quickly and I aim to build scalable, reliable software that truly helps users, while keeping performance, maintainability, and clear communication at the forefront.

Available to hire

Hi there! I am Sahan Pathirannahalage, a Lead Full Stack Developer with 3 years and 7 months of hands-on experience delivering and operating production-grade systems. I value ownership, pragmatic decision-making, and delivering high-quality software in fast-moving teams. I also enjoy mentoring junior engineers and contributing to pragmatic, scalable solutions.

I thrive in cross-functional environments, collaborating with product and design to ship robust features. I’m comfortable learning new technologies quickly and I aim to build scalable, reliable software that truly helps users, while keeping performance, maintainability, and clear communication at the forefront.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Language

English
Fluent

Work Experience

Lead Developer at Efito Solutions (Pvt) Ltd
August 1, 2023 - September 1, 2025
Led development of three USA-based projects across mental health and construction domains, provided technical leadership, mentored junior engineers, and conducted code reviews to ensure high-quality, scalable solutions.
Associate Full Stack Developer at Kingslake (Pvt) Ltd
September 1, 2022 - August 1, 2023
Collaborated on ERP, planning, and automation solutions; built modern tech stack to support manufacturing and supply chain; developed and enhanced features for a Transportation Management System (TMS) using Node.js and React.
Intern | Full Stack Developer at Panaceata (Pvt) Ltd
August 1, 2020 - February 1, 2021
Collaborated with supervisor and team to implement frontend features using Angular and Node.js; used Sequelize ORM with SQL databases to manage data; contributed to bug fixes and delivering three projects on time; gained professional development experience.
Lead Full Stack Developer at Efito Solutions (Pvt) Ltd
August 1, 2023 - September 1, 2025
Led development of three USA-based projects across mental health and construction domains. Provided technical leadership, mentored team members, conducted code reviews to ensure high-quality, scalable solutions and drove architectural decisions.
Junior Developer at Panaceata (Pvt) Ltd
August 1, 2020 - February 1, 2021
Implemented a database connection pooling strategy and configured Node.js clustering to leverage multi-core CPUs, significantly improving query execution, system efficiency, and scalability. Enhanced backend API performance and scalability by optimizing endpoints, robust exception handling, and faster response times. Designed and documented REST APIs with Swagger; contributed to delivering three projects within timelines. Emphasized testing and best practices.

Education

Bachelor of Science (Hons) in Software Engineering at University of Kelaniya, Sri Lanka
January 11, 2030 - January 1, 2026
Bachelor of Science (Hons) in Software Engineering at University of Kelaniya, Sri Lanka
January 11, 2030 - January 1, 2026

Qualifications

AWS Cloud Practitioner Certification
January 11, 2030 - January 1, 2026
AWS Cloud Technical Essentials Certificate
January 11, 2030 - January 1, 2026
Architecting on AWS (AWS Training)
January 11, 2030 - January 1, 2026
Architecting Solutions on AWS
January 11, 2030 - January 1, 2026
AWS Cloud Technical Essentials Certificate
January 11, 2030 - January 1, 2026
Migrating to the AWS Cloud Certificate
January 11, 2030 - January 1, 2026
Continuous Integration and Delivery (CI/CD) Certificate
January 11, 2030 - January 1, 2026
CI/CD Certificate (In Progress)
January 11, 2030 - January 1, 2026

Industry Experience

Software & Internet, Professional Services, Healthcare, Education, Manufacturing, Media & Entertainment