Jesper Bränn
Engineer at Polar
Stockholm, Sweden
Summary
👤
Senior🎓
Top SchoolJesper Bränn is a seasoned backend-focused engineer with 12 years of experience building high-throughput, low-latency distributed systems and scalable cloud infrastructure. He has led engineering teams from early-stage builds to multi-market expansion, most recently serving as CTO at Insurely where he scaled the org to ~40 engineers and achieved ISO 27001 certification while remaining hands-on. His technical chops span Java, Go, Typescript, Terraform and AWS, with proven impact such as a 15x throughput increase in transaction processing and full infrastructure-as-code migrations. Jesper combines strategic product thinking with deep operational experience—setting up CI/CD, automations and service splits from monoliths to microservices. Based in Stockholm, he brings a research-minded background (M.Sc. from KTH and an exchange at NUS) and an appetite for tackling hard performance and reliability challenges. Colleagues describe him as a pragmatic maker who moves seamlessly between leadership and detailed system-level optimisation.
12 years of coding experience
11 years of employment as a software developer
Master of Science in Engineering (M.Sc. / MSE) Datateknik, Master of Science in Engineering (M.Sc. / MSE) Datateknik at KTH Royal Institute of TechnologyExchange semester Computer Science, Exchange semester Computer Science at National University of Singapore
Swedish, English
Stackoverflow
23reputation
4kreached
1answer
2questions
Github Skills (135)
proxy10
websocket10
classifier10
lda10
fasttext10
security10
wordnet10
glove10
word2vec10
fiddler10
bengali10
document-classification10
http-request10
topic-modeling10
nlp10
Programming languages (14)
Github contributions (5)
Yopi/advent-of-code
Dec 2018 - Dec 2022
Contributions:131 commits, 76 pushes, 1 branch in 4 years 1 month
studieresan/studs2017
Sep 2016 - Jun 2017
Contributions:23 PRs, 78 pushes, 14 branches in 8 months
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