Mattias Holmqvist
Principal Engineer at Decomplect AB
Stockholm, Sweden
Summary
👤
Senior🎓
Top SchoolMattias Holmqvist is a Principal Engineer with 16 years of experience building microservice-style systems and championing Event Sourcing and CQRS to help teams produce more maintainable software. He combines deep backend and architectural expertise with full‑stack chops, having shipped systems across banking, gaming, insurance, security, education and defence. A longtime cloud practitioner (and past contributor to jclouds), he’s been designing and operating cloud-native solutions since 2010 using Java, Clojure, Docker, Kubernetes and AWS. As a startup founder and former CEO of Serialized, he pairs hands-on engineering with product-minded leadership and a pragmatic focus on delivery. Known for fixing subtle production bugs and building durable integrations, he favors simple, auditable designs over clever but brittle shortcuts. Based in Stockholm, he runs his consulting practice while shaping platform and API strategies as a Principal Engineer at Resurs.
15 years of coding experience
17 years of employment as a software developer
M.Sc Computer Science, M.Sc Computer Science at Uppsala University
Stackoverflow
832reputation
81kreached
16answers
6questions
Github Skills (20)
jclouds10
testing10
java10
javas10
clojure-cli9
clojure9
amazon-ec28
ec8
restful-api7
api-design7
api-rest7
rest-api7
design-patterns6
nodejs6
rest6
Programming languages (7)
Github contributions (5)
jclouds/legacy-jclouds
Nov 2010 - Jan 2012
Role in this project:
Back-end Developer
Back-end DeveloperContributions:124 commits in 1 year 2 months
Contributions summary:Mattias primarily focused on bug fixes within the jclouds/legacy-jclouds repository, specifically addressing issues related to null pointer exceptions within the AWS EC2 compute functionality. This involved modifying code within the RunningInstanceToNodeMetadataTest.java and RunningInstanceToNodeMetadata.java files. The user also worked on implementing the first version of a Clojure API for compute2, including associated tests, demonstrating the ability to work with different programming languages and testing frameworks.
mattiasholmqvist/evently
Dec 2014 - May 2016
An event sourcing library for Clojure
Contributions:52 commits, 1 PR, 16 pushes in 1 year 6 months
clojuresourcingevent-sourcingcqrs
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