Isuru Weerarathna
Application Engineer
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolIsuru Weerarathna is an application engineer with 14 years of experience specializing in backend development, automation, and performance optimization. He has driven scalable integrations and API design across retail, finance, and enterprise systems for companies like Rakuten, home24 SE, DBT Capital and Virtusa. Known for pragmatic TDD practices, he’s delivered production-grade features from SAP and Salesforce integrations to high-throughput accounting processors and image thumbnail services. He also led teams building enterprise user management, payroll and online-order platforms, often improving legacy workflows and cutting operational costs. Comfortable with cloud infrastructure and CI/CD automation, he pairs hands-on coding with technical leadership and documentation. Based in Sri Lanka, he combines deep Java/Postgres expertise with a knack for squeezing performance in memory-constrained environments.
14 years of coding experience
9 years of employment as a software developer
B.Sc. Eng. (Hons), Computer Science and Engineering, First Class, B.Sc. Eng. (Hons), Computer Science and Engineering, First Class at University of MoratuwaPHYSICAL SCIENCES, PHYSICAL SCIENCES at Bandaranayake College - Gampaha
Stackoverflow
752reputation
28kreached
22answers
6questions
Github Skills (43)
moodle10
electron10
redis10
dsl10
swagger10
mock-server10
e-mail10
api10
mockoon10
rest10
mocking10
querydsl10
rest-api10
engine10
oasis10
Programming languages (5)
Github contributions (5)
VirtusaPolarisGTO/NyQL
Nov 2016 - Nov 2018
A common query DSL for popular relational databases. NyQL is great for you if you want to write a query once and execute in any relational database many times.
Contributions:6 releases, 187 commits, 2 PRs in 2 years
querydslrelational-databasesdsldatabasequeries
isuru89/moodle-local_reminders
May 2012 - Nov 2022
A Moodle local plugin for automating email reminders for calendar events
Contributions:23 releases, 1 review, 261 commits in 10 years 7 months
e-mailmoodle
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