Jaanus Sellin
CTO, Lead Developer at Moderan
Estonia
Summary
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Rockstar🎓
Top SchoolJaanus Sellin is a hands-on CTO and lead developer with 11 years of experience building web-scale applications and leading product engineering for commercial real estate lifecycle management. Based in Estonia, he founded and now drives Moderan’s technical vision while retaining strong implementation skills across Java, .NET, Spring, AngularJS and AWS. His earlier tenure at Playtech and Backive sharpened his backend and integration expertise (SOAP, REST, Hibernate, MSSQL) and informed his pragmatic approach to scalable SPAs and microservices. An active front-end contributor to the popular open-source Unleash feature management platform, he focuses on component-level UX improvements and code quality—bringing both product sensibility and polish to developer-facing tools. Known for combining strategic leadership with frequent code-level contributions, he favors incremental refactors that keep complex systems maintainable and user-focused.
11 years of coding experience
5 years of employment as a software developer
Bachelor's degree Information Technology, Bachelor's degree Information Technology at University of Tartu
English
Stackoverflow
16,341reputation
4.2mreached
97answers
218questions
hibernate
top-5%
spring-mvc
top-5%
java
top-5%
jsp
top-5%
pycharm
top-5%
Github Skills (25)
javascript10
ui-components10
css10
typescript10
material-ui10
mui10
typescript-types10
html10
typescripts10
frontend10
react10
jsp9
java9
spring-mvc9
feature-flags9
Programming languages (17)
Github contributions (5)
Unleash/unleash
Apr 2022 - Jan 2023
Open-source feature management platform
Role in this project:
Front-end Developer
Front-end DeveloperContributions:1 release, 1314 reviews, 182 commits in 9 months
Contributions summary:Jaanus primarily contributed to the front-end of the Unleash platform, focusing on user interface and component-level development. Their work included creating custom group popovers and tooltips for avatars, refactoring existing components, and implementing changes related to the display of project access information. They also focused on incorporating improvements to the project access page. Furthermore, they made minor fixes, and performed code cleanup.
collaborationabtestingcapistranoproductioncontinuous-deployment
sjaanus/exilence
Jan 2019 - Jan 2019
Tool for Path of Exile that tracks currency-gain, gear, maps and other statistics for yourself and your group
Contributions:1 release, 14 pushes, 6 branches in 18 days
statisticsexilecurrencygearpath-of-exile
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