Marcus Otterström is a software developer based in Uppsala, Sweden with eight years of hands-on experience building and improving web applications and tooling. He has worked across the full stack—C#, ASP.NET, TypeScript and React—delivering production features and developer-facing tools while contributing to security hardening and performance analysis. Notably, he built a client-based performance tester and dashboard that exposed real-world caching and bottleneck behavior, and earlier uncovered and remediated XSS and DoS vulnerabilities in legacy systems. Comfortable in Agile teams and familiar with SQL, KQL and Git workflows, Marcus blends practical engineering with a strong focus on reliability and secure coding practices.
8 years of coding experience
1 year of employment as a software developer
High School Diploma, Computer Games and Programming Skills, 19.4 / 20 merit rating, High School Diploma, Computer Games and Programming Skills, 19.4 / 20 merit rating at Uppsala estetiska gymnasium
Bachelor's degree, Information Systems, Bachelor's degree, Information Systems at Uppsala universitet
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