Software Developer
Jefferson Capital, Inc. (NASDAQ: JCAP)
Sartell, MN · $100k–$120k a year · Posted June 3, 2026
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Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
JOB SUMMARY & RESPONSIBILITIES
Design, develop, and maintain applications using C#, .NET, ASP.NET Core, and related technologies
Collaborate with cross-functional teams to define technical requirements and architecture
Write clean, maintainable, and testable code following best practices and coding standards
Optimize application performance and troubleshoot complex technical issues
Participate in code reviews and mentor junior developers as needed
Contribute to system architecture decisions and technology evaluations
Work with SQL Server for database design, queries, and performance tuning
Stay current with emerging technologies and industry trends
REQUIREMENTS
Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience)
5+ years of experience with C# and the .NET framework, including .NET Core/.NET 6+
Strong experience with ASP.NET Core MVC/Web API
Solid understanding of object-oriented programming and design patterns
Proficiency in relational databases (SQL Server, PostgreSQL, etc.) and writing complex queries
Experience with source control systems
Strong problem-solving skills and the ability to work independently or as part of a team
Self-motivated, requires little direct supervision or assistance to complete tasks
Able to contribute to a team-oriented, collaborative environment
Passionate about learning, embracing new challenges, and having fun
PREFERRED QUALIFICATIONS
Knowledge of CI/CD pipelines and DevOps practices
Experience with performance optimization and profiling tools
Exposure to Agile methodologies and working in cross-functional teams
Front-end experience with frameworks such as React, Angular, or Blazor
Proficiency in unit testing and automated testing frameworks
Background in high-performance, scalable system design
Experience with cloud platforms (Azure or AWS)
BENEFITS
401(k)
401(k) matching
Dental insurance
Disability insurance
Employee assistance program
Flexible spending accounts
Health insurance
Life insurance
Paid time off
Parental leave
Tuition reimbursement
Vision insurance
Pet insurance
Employee discount program.