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Senior Software Engineer (.net)

ZipRecruiterSt Paul, MN, United States

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Job DescriptionJob Description

We are looking for a Senior .NET Software Developer to design, develop, and maintain systems that support prepaid card manufacturing operations. You’ll demonstrate technical leadership on both new and legacy applications, collaborate with cross-functional teams, and drive best practices across development, DevOps, and system reliability.

This role requires solid experience with .NET technologies, SQL, and a passion for mentoring and improving code and teams. You’ll work in a hybrid environment and play a key role in ensuring application reliability, compliance (e.g., PCI / SOX), and modern deployment strategies.

Responsibilities

Design and implement secure, scalable, and maintainable systems using .NET and SQL Server
Lead design sessions and code reviews, promoting sound design patterns and clean architecture
Troubleshoot and resolve defects to minimize manufacturing downtime
Support and maintain both modern and legacy manufacturing systems
Independently manage assigned projects, delivering high-quality results on time
Collaborate with stakeholders to gather requirements and deliver enhancements
Contribute to and advance the DevOps strategy for automated CI / CD deployments
Mentor junior developers through code reviews, pairing, and 1-on-1 support
Implement monitoring and alerting for critical applications and infrastructure
Partner with security and compliance teams to ensure PCI and SOX adherence

Qualifications

Required Qualifications

Experience with web application development (ASP.net and Blazor)

Strong understanding of object-oriented design and SOLID principles

Familiarity with ORMs (Entity Framework, LINQ, Dapper)

Experience implementing Dependency Injection (IOC)

Experience with XML, JSON, REST APIs

Proficient in Git, Visual Studio, and common SDLC tools

Ability to influence stakeholders, leadership and peers through strong written and verbal communication skills

Ability to manage multiple tasks independently in an agile environment

Bonus Qualifications

Experience in PCI-compliant or regulated environments (e.g., SOX)

Exposure to DevOps tools and practices (CI / CD, pipelines, infrastructure as code)

Experience with legacy .NET systems and modernization efforts

Familiarity with monitoring and alerting tools (e.g., App Insights, ELK stack)

Requirements :

Bachelor's degree in Computer Science, Information Technology, or related field (or

equivalent experience)

7+ years of software development experience with .NET (C#, .NET Framework, .NET Core)

3+ years working with SQL Server (T-SQL, stored procedures, optimization)

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Software Engineer Net • St Paul, MN, United States