Mikael Henriksson
Chief Technology Officer at Zazu
Berlin Metropolitan Area Germany
Summary
🤩
Rockstar🎓
Top SchoolMikael Henriksson is a pragmatic CTO and freelance full-stack engineer with 15 years of experience designing and shipping highly scalable backend systems, particularly in Ruby/Rails and PostgreSQL. He currently leads engineering at Zazu, accelerating feature delivery in banking tech while also running his freelance practice, Zoolutions LLC. Mikael is a hands-on systems designer who has solved production reliability issues—evidenced by his notable open-source work on sidekiq-unique-jobs to prevent duplicate background jobs. He combines deep operational know-how (performance tuning, microservice extraction, CI/docker optimizations) with a knack for rapid product iteration and clean test-driven development. Based in Berlin, he balances pragmatic engineering with curiosity for new web technologies and a creative side as a musician and songwriter.
14 years of coding experience
19 years of employment as a software developer
Web design, Web design at Fridhems folkhögskola
English, Swedish
Stackoverflow
6,239reputation
719kreached
127answers
71questions
nhibernate
top-5%
Github Skills (14)
locking10
redis10
sidekiq10
concurrency10
ruby10
nhibernate9
asp-net-mvc9
enums6
asp-net6
orm6
fluentnhibernate6
entity-framework6
jquery6
linq6
Programming languages (15)
Github contributions (5)
mhenrixon/sidekiq-unique-jobs
Jul 2012 - Jan 2023
Prevents duplicate Sidekiq jobs
Role in this project:
Back-end Developer
Back-end DeveloperContributions:140 releases, 68 reviews, 1007 commits in 10 years 7 months
Contributions summary:Mikael appears to be a backend developer focused on the sidekiq-unique-jobs project. The commits primarily involved improvements to the functionality and reliability of the job locking and scheduling mechanisms. The contributions include creating a robust solution for jobs to prevent running concurrently, including specific handling of expiring the jobs in redis, and preventing jobs from re-running. The work resulted in fixes for production problems.
redisduplicatesidekiq-jobsrubysidekiq
mhenrixon/active_campaign
Jun 2013 - May 2020
A simple ruby wrapper for the ActiveCampaign API
Contributions:6 reviews, 158 commits, 68 PRs in 7 years
ruby-wrapperapiactivecampaign-apirubyactivecampaign
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