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.
15 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)
ruby10
locking10
redis10
sidekiq10
concurrency10
nhibernate9
asp-net-mvc9
asp-net6
orm6
fluentnhibernate6
entity-framework6
jquery6
linq6
enums6
Programming languages (15)
Github contributions (5)
zoolutions/sidekiq-unique-jobs
Jul 2012 - Jan 2023
Prevents duplicate Sidekiq jobs
Role in this project:
Back-end Developer
Back-end DeveloperContributions:141 releases, 76 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.
sidekiqrubyredis
reevoo/sapience-rb
Jul 2016 - Feb 2017
Hasslefree auto-configuration for logging, metrics and exception collection.
Contributions:301 commits, 20 PRs, 248 pushes in 7 months
autoconfigurationlogging
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