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Senior Developer

Ser Group

Ser Group

Software Engineering
Oslo, Norway
Posted on Mar 31, 2026

Senior Developer

full-time

Interested in building scalable cloud solutions? Do you want to design high-performance architecture and work with modern technologies in a SaaS environment? Are you passionate about clean code, security, and innovation – including AI-powered software?
The Senior Developer role is for experienced professionals who combine strong technical expertise with architectural thinking and a passion for mentorship. You will play a key role in designing, developing, and optimizing our SaaS solutions while ensuring performance, scalability, and security at every level.

Oslo

This is how you succeed

  • You design and implement scalable, secure, and high-performing SaaS architectures (including multitenancy concepts).
  • You write clean, maintainable code, conduct code reviews, and ensure quality through testing.
  • You tackle challenging technical problems with a structured and solution-oriented mindset.
  • You support and mentor junior developers and actively contribute to a strong engineering culture.
  • You optimize processes, improve CI/CD pipelines, and enhance system efficiency.

Your profile

  • 5+ years of professional experience in software development
  • Degree in software engineering, computer science, or a comparable field
  • Strong experience with .NET / .NET Core and modern frontend frameworks (React and/or Vue.js)
  • Good understanding of cloud-native architectures (Azure), CI/CD, and scalable SaaS environments
  • Solid knowledge of databases (ideally document databases such as MongoDB)
  • Awareness of security best practices (authentication, authorization, encryption)
  • Analytical mindset, high quality standards, and a proactive way of working
  • Strong communication skills and enjoyment in collaborating and mentoring within a team
  • Passion for modern technologies, continuous learning, and taking ownership of your solutions

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Iraklis Martzios
Doxis Recruiting

Doxis is one big family with flexibility and great benefits as well as a modern office with first-class equipment.

Interested in finding out more?
Write to us or give us a call:

job@doxis.com
Tel.: +49 228 90896-0