Lasse Tyrihjell
Selvstendig Konsulent at Selvstendig konsulent
Oslo, Norway
Summary
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RockstarLasse Tyrihjell is an experienced independent consultant based in Oslo with over 10 years of hands-on software development and consulting across Norwegian tech firms. He has a strong backend focus, demonstrated by substantive open-source contributions to OpenTripPlanner where he implemented SIRI real-time data integration, alerts and timetable update handling—work that improves public-transport reliability for multi-modal trip planning. Since 2018 he has run his own consultancy after senior consulting roles at Capra Consulting and Knowit, bringing practical delivery skills from both product and client-facing projects. Colleagues would describe him as a pragmatic engineer who balances legacy refactors with feature delivery and who’s comfortable navigating the edge cases of real-time systems.
10 years of coding experience
7 years of employment as a software developer
Github Skills (12)
javas10
stream-processing10
real-time-data10
realtime10
backend10
back-end-development10
java10
data-processing10
data-integration9
alerts9
alertview9
alertdialog9
Programming languages (9)
Github contributions (5)
opentripplanner/OpenTripPlanner
Aug 2016 - Oct 2022
An open source multi-modal trip planner
Role in this project:
Backend Developer
Backend DeveloperContributions:86 reviews, 510 commits, 38 PRs in 6 years 3 months
Contributions summary:Lasse has primarily focused on implementing features related to SIRI (Service Interface for Real-time Information) data integration. Their work includes adding initial support for fetching real-time data, implementing SIRI-based alerts in legs, and handling SIRI ET (Estimated Timetable) updates, particularly those with only recorded calls. The user has also refactored the code by removing custom alerts-handling, and also addressed several related bugs and edge cases.
multi-sourcemulti-modaltrip-plannermodalplanner
entur/anshar
Jun 2016 - Jan 2023
A pub-sub hub for SIRI data. It will connect and subscribe on SIRI endpoints, and also supply external endpoints
Contributions:7 reviews, 2428 commits, 55 PRs in 6 years 8 months
spring-bootsiriendpointspub-subsupply
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