Eiríkur Þorsteinsson
Tech Lead at Picnic Technologies
Amsterdam, North Holland, Netherlands
Summary
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RockstarEiríkur Þorsteinsson is a tech lead with 13 years of experience based in Amsterdam, specializing in backend systems, databases and team formation. At Picnic he founded and grew product teams, led the GraphQL microservice architecture for a mission-critical driver app, and drove reliability improvements for a large MongoDB cluster while breaking up monoliths to enable faster iteration. He pairs hands-on engineering—deepening PostgreSQL and automated testing practices—with people leadership, scaling teams from 2 to 7 and mentoring engineers. Formerly a programming teacher and adjunct, he brings a pragmatic educator’s knack for clarity and knowledge transfer to technical strategy and operational excellence. Notably, he combines operational reliability work with productization efforts, translating field needs into scalable services used across multiple markets.
13 years of coding experience
5 years of employment as a software developer
English, Icelandic, German, Dutch
Stackoverflow
333reputation
7kreached
12answers
2questions
Github Skills (59)
java9
graphql-java9
checkers8
graphql8
spring8
security8
abstract-syntax-tree7
capability7
spring-boot7
refactoring6
filtering6
android-imageview6
error-prone6
mono6
code-structure6
Programming languages (5)
Github contributions (5)
Ernir/ernir-angular
Nov 2022 - Mar 2025
Contributions:16 reviews, 117 PRs, 212 pushes in 2 years 4 months
Ernir/kennsluefni
Jan 2016 - Jun 2024
Contributions:247 pushes, 1 branch in 8 years 6 months
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