Sahiru Wijesinghe

Hello, I'm Sahiru

Software Engineer, Freelancer

Passionate About

Computer Science Engineer from the University of Moratuwa, currently working as a Software Engineer at Sysco Labs. I specialize in Backend Development, Cloud Engineering, and DevOps — transforming complex challenges into elegant, scalable solutions.

Driven by curiosity and a passion for continuous learning, I thrive on collaboration and bringing innovative ideas to every project. My mission is to leverage technology to create meaningful impact and build solutions that improve lives.

Experience & Education

Selected roles, projects, and academic highlights — concise and focused.

2025 Jun - To Present

Software Engineer

Sysco Labs Pvt Ltd. — SWMS

Backend engineering for large-scale supply chain systems. Building and integrating high-throughput services with a strong emphasis on data integrity, reliability, and operational resilience.

  • Built and integrated multiple SIGMA and BlueYonder interfaces using Spring Boot, Kafka, PostgreSQL, and PL/pgSQL, handling complex data mapping, staging, and status workflows.
  • Designed automated purge and archival processes and authored supporting Bash utilities to improve operational efficiency.
  • Implemented unit and end-to-end tests using JUnit and Cypress, improving confidence in critical data pipelines.
  • Contributed to production readiness through DR runbooks and database performance optimization research.

2023 Dec - 2024 May

Software Engineering Intern

GTN Technologies — Platform Engineering

Platform engineering internship focused on infrastructure automation, CI/CD reliability, cloud security, and developer productivity for fintech systems.

  • Enhanced CI pipelines with static code analysis and automated DAST using OWASP ZAP.
  • Optimized AWS resource usage by implementing policy-driven governance with Cloud Custodian.
  • Modularized and standardized infrastructure using Terraform for reusable IaC components.
  • Reduced AMI build times by 62.5% through Packer optimizations.
  • Implemented DORA metrics and observability dashboards using Datadog.

2021 Aug - 2025 Jun

B.Sc. Engineering (Hons) — Computer Science & Engineering

University of Moratuwa — Faculty of Engineering

Graduated with First Class Honors (CGPA: 3.73) and a Minor in Mathematics. Strong focus on software engineering, distributed systems, backend development, and cloud-native architectures.

  • Dean’s List: Semesters 02, 06, 07, and 08
  • Relevant coursework: Algorithms, Data Structures, Systems Design, Software Engineering, Databases
  • Publication: MERCon 2025 — Transformer-based intent classification for automated software deployment plan generation
  • Competitive programming & engineering competitions: IEEEXtreme 16.0 (Sri Lanka Rank 9, Global Rank 220), Bashaway 2022 (Winners), Code Squad V3.0 (Second Runners-Up)

2019 Dec - Present

Freelance Developer

Apps Script & VBA

Specialize in Google Apps Script and VBA for automation, spreadsheet tools, and lightweight web tooling.

  • Delivered 600+ projects across automation, reporting, and custom client workflows.
  • Focus on clear requirements, maintainable scripts, and user-friendly results.

2019 Sep - 2020 Jan

Project Associate

Innodate Lanka Pvt Ltd

Worked on textbook digitization and XML markup for UK-standard documents, using automation to improve throughput and accuracy.

  • Developed Python scripts and markup tools to streamline document processing.
  • Applied regex and automated checks to ensure markup consistency.

2010 Jan - 2019 Aug

Richmond College

Completed G.C.E. A/L (Physical Science Stream) with 3 A passes.

Recent Projects

A curated selection of recent work — click through to see project details and source where available.

No projects available at the moment.

Hands-On Experience

Tools, frameworks and platforms I use regularly to build reliable systems and automation.

Languages

Java logo

Java

JavaScript/TypeScript logo

JavaScript/TypeScript

Python logo

Python

C++ logo

C++

Bash logo

Bash

Apps Script logo

Apps Script

VBA logo

VBA

Frameworks & Libraries

ReactJS logo

ReactJS

NextJS logo

NextJS

Express logo

Express

FastAPI logo

FastAPI

React Native logo

React Native

Databases & Caching

MySQL logo

MySQL

Redis logo

Redis

Cloud & DevOps

AWS logo

AWS

Terraform logo

Terraform

Packer logo

Packer

Docker logo

Docker

Cloud Custodian logo

Cloud Custodian

CI / Version Control

GitHub logo

GitHub

GitLab logo

GitLab

Other Tools

Firebase logo

Firebase

ZAP logo

ZAP

Trusted By

Working with amazing companies and teams

Way of Music logo
Craig logo
Cyntox logo
Forfend logo
Pokemon logo
Capstone logo
Rividco logo