Laust Jacobsen
Senior Backend Developer And Software Architect at valuestream.io
Aarhus, Central Denmark Region
Summary
🤩
Rockstar🎓
Top SchoolLaust Jacobsen is a Senior Backend Developer and Software Architect with 17 years of experience building and stabilizing large-scale systems across Ruby, Java, C#, Python and Elixir. He combines hands-on engineering—contributing to notable open-source projects like Errbit and Logstash test suites—with platform-level SRE expertise, having led Datadog-driven observability, zero-downtime deploys, and consistent error propagation across microservices. Laust excels at simplifying complexity: he’s driven dependency-wide migrations, automated cross-service updates, and turned monoliths into maintainable service forests to cut maintenance costs and speed delivery. He’s equally focused on team health, championing psychological safety and zero-blame post-mortems to accelerate learning and reliable operations. Based in Aarhus, he runs his own consultancy while shaping architectures at BiQ and previously at Cactus Communications, making him adept at both building new SaaS products and rescuing tangled production systems.
17 years of coding experience
21 years of employment as a software developer
Datamatiker, Datamatiker at Aarhus School of BusinessM.Sc., Computer Science, M.Sc., Computer Science at Aarhus University
English, Danish
Stackoverflow
1,011reputation
102kreached
28answers
1question
Github Skills (22)
fixture10
testing10
rspec10
ruby10
activerecord10
devops10
test-automation10
error-log9
rabbitmq8
configuration-management8
security8
ruby-on-rails6
windows6
haml6
multithreading6
Programming languages (22)
Github contributions (5)
errbit/errbit
Feb 2015 - Jan 2019
The open source error catcher that's Airbrake API compliant :ukraine:
Role in this project:
Backend & DevOps Engineer
Backend & DevOps EngineerContributions:1 review, 218 commits, 111 PRs in 3 years 11 months
Contributions summary:Laust primarily contributed to the backend and infrastructure aspects of the Errbit project. They made changes to the database seeding process, introducing random password generation for security. They also worked on refactoring code with Rubocop, improving code quality and addressing linting warnings across multiple files. Additionally, the user implemented changes related to deployment processes by updating the Unicorn and deploy configuration files.
airbrakerubycrash-reportingerror-monitoring
jondot/sneakers
Jan 2015 - Oct 2015
A fast background processing framework for Ruby and RabbitMQ
Role in this project:QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:23 commits, 10 PRs, 69 comments in 8 months
Contributions summary:Laust primarily contributed to the project by writing and improving the test suite. Their work focused on stabilizing and ensuring the consistency of the tests, including setting up the test environment with Bundler, clearing configurations before each test case and integration testing, and using specific configurations within the tests. They also fixed issues related to queue functionality and durability settings, indicating a focus on the reliability and correctness of the system.
background-processingrabbitmqruby
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