Johan Olsson
Full Stack Developer at Radancy
Barcelona, Catalonia, Spain
Summary
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SeniorJohan Olsson is a Full Stack Developer based in Barcelona with 11 years of experience building secure, reliable web systems across startups and established companies. He combines deep knowledge of programming fundamentals, architecture patterns and distributed systems with hands-on front- and back-end delivery, having held roles from Mobile Web Tech Lead to Senior Frontend and full stack positions. Since 2017 he has driven production work at Radancy, bringing pragmatic engineering and a security-first mindset to complex projects. Johan’s career shows a willingness to move across domains and responsibilities quickly, joining short-term engagements and longer tenures that sharpen both delivery speed and architectural judgment. He consistently focuses on improving code quality and system reliability, often bridging product needs with scalable technical solutions. Colleagues would describe him as a practical problem-solver who balances attention to detail with a clear view of system-wide tradeoffs.
11 years of coding experience
6 years of employment as a software developer
Swedish, English
Github Skills (30)
controlling10
parrot10
js-client10
priority-queue9
react-select9
react8
job-queue8
nodejs8
kue8
bull8
innerhtml7
queue7
client-library7
api6
coffeescript6
Programming languages (3)
Github contributions (5)
johan-olsson/bebopBrowserVideo
Jan 2016 - Apr 2017
Contributions:1 push, 1 branch, 3 comments in 1 year 3 months
johan-olsson/tracker-tray
Jan 2020 - Jan 2020
Contributions:34 releases, 1 branch, 14 tags in 2 days
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