Senior Software Engineer

Protolabs•Nashua, NH

5d•$107,400 - $161,000•Hybrid

About The Position

We are seeking a highly skilled Senior .NET Software Engineer to join our Global Technology Services (GTS) Software Development team. In this role, you will be responsible for designing, developing, and maintaining scalable applications that support a diverse range of users across the organization. You will collaborate closely with cross-functional teams to deliver high-quality, innovative solutions that align with business needs. This is a fixed hybrid role on-site Tuesday, Wednesday, Thursday in Nashua NH.

Requirements

A degree in Computer Science, Software Engineering, or related field.
5+ years of professional software development experience (or equivalent demonstrated capability).
Proficient in C#, Visual Studio, MS-SQL, HTML, JavaScript.
.NET development work experience.
Experience developing, maintaining, and supporting production software systems.
Experience with multiple .NET patterns and platform technologies like client/server, ASP .NET sites, web services, WCF endpoints, SOA, or MVC.
Experience using version control systems in a team environment.
Strong communication skills and work ethic
Solid understanding of core software engineering concepts, design principles, and development practices.
Familiarity with Agile/Scrum development methodologies.
Demonstrated accountability, positive attitude, and ability to meet commitments.
Strong problem-solving, analytical, and debugging skills.
Ability to work independently on assigned tasks while collaborating within a team.
Demonstrated history of staying current on best practices in technology
U.S. Citizens, lawful permanent residents (green card holders) or foreign nationals granted refugee or asylee status. Individuals with temporary visas (e.g. E, F-1, H-1, H-2, L, B, J, TN or OPT) are not eligible for hire in this role.

Responsibilities

Design, develop, and maintain software applications used across Protolabs’ digital manufacturing and commerce platforms.
Build and enhance features using .NET Core, C#, web services, and SQL Server.
Utilize AI tools for software development such as Cursor, Claude or Co-pilot.
Design, implement, debug, and deliver high quality software.
Participate in requirements gathering, system design discussions, design reviews, and code reviews.
Create and maintain unit tests and automated acceptance tests to ensure software quality and reliability.
Debug and resolve production issues across functional and technical areas.
Work from established system designs and specifications using standard development tools, procedures, and best practices.
Collaborate effectively with architects, other engineers, product partners, and cross functional teams.
Provide technical input and assistance to less experienced engineers when appropriate.
Communicate development progress, risks, and support needs to team members and management.
Follow software engineering best practices and contribute to system resilience, performance, and maintainability.
Stay current on relevant technologies, frameworks, and industry best practices.
Participate in 24x7 on-call rotation in support of global software systems.
Perform other duties as assigned.