Senior Python Developer
Workplace: Stockholm, Sverige
Expires: December 10, 2025
As a Senior Python Developer at Castra, you will play a central role in developing innovative and high-performing systems for our clients. You will work closely with both technology and business teams to create solutions. Castra offers a dynamic work environment with assignments in both private and public sectors. You have full control over your working hours, skills development, compensation, pension, vacation, and projects.
Main requirements:
  • At least 8 years of experience in Python development including work with Django and/or Flask
  • Deep understanding of backend architecture, APIs, and microservices
  • Experience working with cloud services such as AWS, Azure, or GCP
  • Experience with container technologies like Docker or Kubernetes
Responsibilities:
  • Develop innovative and high-performing systems for clients
  • Work closely with both technology and business to create solutions
  • Manage own working time, professional development, compensation, pension, vacation, and projects autonomously
Required hard skills:
  • Python development
  • Django or Flask frameworks
  • Backend architecture
  • API design and implementation
  • Microservices architecture
  • Cloud platforms (AWS, Azure, GCP)
  • Container technologies (Docker, Kubernetes)
Recommended hard skills:
  • Experience with CI/CD pipelines
  • Test automation
  • DevOps processes
  • Security considerations
  • Database management
Soft skills:
  • Ability to collaborate closely with business and technical teams
  • Self-directed and able to manage own schedule and priorities
  • Participative and co-creative mindset
  • Strong communication skills
Coding languages:
  • Python
Frameworks:
  • Django
  • Flask
Natural languages:
  • Swedish (Proficient)
  • English (Working knowledge)
Cultural skills:
  • Entrepreneurial mindset
  • Team participation in company ownership and project groups
  • Value personal freedom and work-life balance