Sr. Software Engineer (On-Site)

We are seeking a Senior Software Engineer to join a team of 5–6 developers building and maintaining software for DMV services kiosks. This role is backend-heavy and centered on C#, VB.NET, and SQL Server systems that power core kiosk workflows, with additional responsibilities across .NET web applications and WinForms desktop applications.

The primary objective of this role is to help migrate existing kiosk applications to Microsoft Azure Cloud. The ideal candidate will develop a strong command of the current application portfolio and contribute meaningfully to the planning and execution of the Ae transition.

Success in this role requires strong problem-solving skills, the ability to work across mixed technology stacks, and ownership of delivering reliable solutions in real-world production environments.

Duties and Responsibilities:

• Design, develop, and maintain core application logic using VB.NET
• Build and maintain WinForms desktop applications, including the SST client
• Design and optimize SQL Server queries and data access patterns for high-performance, transactional systems with a strong emphasis on query efficiency, indexing strategies, and minimizing latency
• Build and support web applications using C# / ASP.NET, including Web Forms, Web API, .NET MVC, and RESTful APIs
• Contribute to the modernization of existing kiosk applications with Microsoft Azure Cloud and Vue.js
• Troubleshoot and resolve complex production issues across the database, backend, and UI layers
• Work within and improve complex legacy systems while maintaining production stability
• Collaborate with developers, the Software Development Manager, the product team, and technical operations to deliver high-quality releases
• Participate in code reviews and contribute to improving development standards and practices
• Support automated testing and CI/CD pipeline improvements

• 5–8 years of professional software development experience
• Strong experience with SQL Server, including query design and optimization, performance tuning, and efficient data access patterns
• Strong experience with VB.NET and C#
• Experience with SPA, .Net MVC, Web Forms, Windows Services, and WinForms application development
• Experience working on systems where performance and reliability are critical to business operations
• Experience with Microsoft Azure Cloud architecture and development
• Experience conducting code reviews and mentoring other engineers
• Experience working in complex, multi-system or legacy-integrated environments
• Experience leveraging modern AI-assisted development tools (e.g., Claude Code, Cursor, Microsoft Copilot)
• Experience with UWP
• Experience modernizing legacy systems or working in hybrid environments
• Experience with automated testing frameworks (Selenium, Playwright)
• Familiarity with CI/CD pipelines
• Experience working in regulated or compliance-driven environments (e.g., PCI)
• Experience with devices like printers and credit card readers

• Technology Stack:
• VB.NET
• C#
• Visual Studio 2022
• ASP.NET – Web Forms, Web API, MVC, and RESTful Services
• .NET Framework 4.8 & .NET Core
• WinForms
• Azure Cloud
• SQL Server
• View.js
• Ability to debug complex issues across multiple layers (database, backend, UI)
• Proven ability to design and implement maintainable, scalable systems
• Strong collaboration skills across engineering, QA, and product teams
• Ability to take ownership of deliverables and drive work through to completion
• Ability to quickly understand existing systems and make safe, incremental improvements in production environments
• Develop a strong command of the current kiosk application portfolio
• Independently deliver solutions involving VB.NET, C#, and SQL Server with minimal oversight
• Actively contribute to the Azure cloud migration planning and execution
• Improve performance or reliability of existing systems
• Effectively troubleshoot complex production issues across multiple layers
• Provide mentorship and elevate team technical standards
• Demonstrated understanding of system quality attributes, including:
• Reliability
• Scalability
• Security
• Maintainability
  

• Office setting with a moderate noise level.
• The employee will work at an individual workstation, using a telephone and computer.

• Must be able to remain seated for extended periods.
• Regular use of a computer and other office machinery, such as printers and copy machines.
• Occasional movement around the office.
• Frequent communication via telephone.

With the backing of four decades of public sector expertise and corporate capability, Neumo has successfully supported government services. Neumo was honored and recognized for four (4) consecutive years as a GovTech 100 Company representing the top 100 companies focused on making a difference in and selling to state and local government agencies across the United States.

Neumo is committed to helping communities thrive and brings a wealth of experience combined with innovation. Today, Neumo offers more administrative and financial support to government officials than any other organization. And with a responsive, client-focused approach, we foster partnerships that give our customers the certainty they need to accomplish more.

Neumo offers a competitive benefits and compensation package and are looking for team members who will thrive in our dynamic environment.

Neumo is an Equal Opportunity Employer. Selection for a position will be made without regard to race, religion, national origin, sex, political affiliation, marital status, non-disqualifying physical handicap, and age.