Fredrik Pettersen
Senior Full Stack Developer at Kahoot!
Oslo, Norway
Summary
🤩
Rockstar🎓
Top SchoolFredrik Pettersen is a Senior Full Stack Developer based in Oslo with 13 years of experience building web platforms for publishing, telecom and learning products. He combines hands-on backend expertise in Java and Go with front-end and DevOps experience, having shipped end-to-end features and developer tooling across teams at Kahoot!, Motimate and Aller Media. Fredrik’s background in sales and people management gives him a practical edge in translating business needs into user-friendly technical solutions and improving developer experience. He contributes to notable open-source projects like NextAuth.js, where he implemented client-side session hooks and strengthened Prisma adapter integrations, signaling a focus on robust authentication and database interoperability. Known for moving between platform, product and infra concerns, he thrives in roles that require both deep technical ownership and cross-functional collaboration.
13 years of coding experience
9 years of employment as a software developer
Bachelor’s Degree Computer Science, Bachelor’s Degree Computer Science at Gjøvik University College (HiG)
English, Norwegian
Stackoverflow
465reputation
37kreached
11answers
12questions
Github Skills (23)
javascript10
authentication10
user-authentication10
next-auth10
prisma10
react10
database-design9
nodejs9
api8
apim8
api-design8
oauth7
wysiwyg6
android6
angularjs6
Programming languages (9)
Github contributions (5)
nextauthjs/next-auth
May 2020 - Jul 2020
Authentication for the Web.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:6 commits, 8 PRs, 8 pushes in 2 months
Contributions summary:Fredrik contributed to the NextAuth.js project by implementing and refactoring client-side functionality. They introduced a `useGlobalSession` hook using React context and refactored the session hooks for improved code organization. The user also made significant additions to the Prisma adapter, including the implementation of a new adapter, updates to user data, and ensured correct data types for provider accounts. These changes focused on improving the library's flexibility and database integrations.
solidjsnuxtnextauthaccess-tokenspid
Fumler/blog-cms
Feb 2013 - Mar 2013
Contributions:96 commits in 1 month
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