System Developer .Net
Workplace: Stockholm, Sverige
Expires: November 26, 2025
Techster Solutions is in an exciting growth phase and is seeking colleagues, initially someone with at least 5+ years of experience to strengthen the team. You can expect a varied environment where you use your skills and set the limits for how much you want to develop. As a knowledge company, it is important that our specialists share their expertise and help colleagues grow. The assignment involves being a system developer in IT maintenance and/or development and implementation projects. This may also include working in other projects and management where development and handling of existing systems and web applications are included. Work can be in larger or smaller teams, involving requirements, UX, testing, and coordination with stakeholders. We work agile with deliveries often in sprints. The systems developed and maintained must meet high IT security standards. You will be employed by Techster Solutions and work on assignments at customers. The energy market and power system areas are undergoing changes, with several exciting projects developing various support systems to meet new needs.
Main requirements:
  • University or college education (120p/180hp) in IT, or vocational education of at least 400 vocational points in IT including .NET system development
  • Minimum 5 years of professional experience in system development with ASP.NET
  • Minimum 5 years of professional experience in system development with .Net Core
  • At least 2 years experience in system development towards MS-SQL databases
  • At least 2 years experience in system development with HTML, CSS, and JavaScript
  • At least 2 years experience with Entity Framework Core
  • At least 1 year experience developing REST APIs
  • Good written and verbal communication skills in Swedish and English
Responsibilities:
  • Design, implementation and testing of system solutions
  • Create or update requirements and design documentation
  • Create or update system documentation
  • Collaboration within team and other parts of the organization
  • Handle incidents including troubleshooting and bug fixes, and assist in IT maintenance of applications
Required hard skills:
  • ASP.NET system development
  • .Net Core system development
  • MS-SQL database development
  • HTML, CSS, JavaScript development
  • Entity Framework Core
  • REST API development
Recommended hard skills:
  • Experience in IT architecture and software system design (at least 2 years)
  • Participation in at least two projects with CI/CD pipelines implemented in Azure DevOps
  • Using Git version control system for at least 2 years
  • Experience working in energy market and/or power system area for at least 2 years
Soft skills:
  • Good communication skills
  • Ability to work collaboratively in teams
  • Willingness to share knowledge and help others grow
  • Adaptability to agile work environments
Coding languages:
  • C#
  • HTML
  • CSS
  • JavaScript
  • SQL
Frameworks:
  • ASP.NET
  • .Net Core
  • Entity Framework Core
Natural languages:
  • Swedish (Proficient)
  • English (Proficient)
Cultural skills:
  • Entrepreneurial mindset
  • Openness to new technical solutions
  • Culture of knowledge sharing and continuous learning
  • Maintaining a fun and familial work environment without hierarchies
  • Appreciation for diversity and inclusion