Urmas Tamm
Senior Software Engineer at CGI
Tartu, Estonia
Summary
👤
Senior🎓
Top SchoolUrmas Tamm is a Senior Software Engineer based in Tartu, Estonia, with over a decade of experience delivering pragmatic, production-ready systems across public sector, utilities, and fintech. Proficient in Java and diverse database technologies, he takes end-to-end ownership from analysis through delivery while adhering to Clean Code, Software Craftsmanship and TDD principles. He has contributed to notable open-source projects—improving test coverage and fixing subtle pause/resume bugs in the widely used RxJS library and enhancing mobile UX in a React international phone input—reflecting a strong QA and front-end sensibility alongside backend expertise. With an MSc in Informatics from the University of Tartu and a history of migrating critical billing and government modules, he combines distributed-systems and functional-programming passions with a pragmatic focus on reliable outcomes.
12 years of coding experience
15 years of employment as a software developer
Master of Science (MSc), Informatics, Master of Science (MSc), Informatics at University of TartuBachelor of Science (BSc), Information Technology, Bachelor of Science (BSc), Information Technology at Tartu Ülikool
Github Skills (15)
unit-testing10
javascript10
react-components10
rxjs10
react10
react-component10
test-automation10
observables9
backpressure9
observable9
component-kit9
internationalization8
flags6
inputbox5
input-field5
Programming languages (9)
Github contributions (5)
Reactive-Extensions/RxJS
Aug 2014 - Mar 2015
The Reactive Extensions for JavaScript
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:12 commits, 2 PRs, 34 comments in 6 months
Contributions summary:Urmas primarily contributed to the testing of the RxJS library, focusing specifically on the `pausableBuffered` and `pausable` operators. Their contributions included adding new test cases to cover edge scenarios, such as buffering with an observable controller and immediate unpausing. They also fixed existing bugs and improved the test coverage with a deeper understanding of pause/resume logic. The user's work ensures the reliability and proper functionality of the RxJS operators, particularly in complex backpressure scenarios.
functional-programmingjavascriptreactive-programmingreactive-extensionsextensions
patw0929/react-intl-tel-input
Nov 2016 - Dec 2016
Rewrite International Telephone Input in React.js. (Looking for maintainers, and PRs & contributors are also welcomed!)
Role in this project:Front-end Developer
Front-end DeveloperContributions:7 commits, 1 PR, 1 comment in 1 day
Contributions summary:Urmas primarily contributed to enhancing the functionality and user experience of a React-based international telephone input component. Their work involved adding tests for mobile-specific configurations, such as full-screen dropdown behavior. Furthermore, they introduced a new prop to control the full-screen dropdown on mobile devices, offering greater customization options. The commits also involved refactoring and optimization, specifically preventing mouse-over events on mobile to improve usability.
react-componentreacteditableflagstelephone
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