Sr. Software Engineer—Catalog Domain

Protolabs•Maple Plain, MN

1d•Hybrid

About The Position

ProtoLabs is seeking a Sr. Software Engineer for their Catalog Domain. This is a fixed hybrid role, requiring on-site presence at HQ in Maple Plain, MN on Tuesdays, Wednesdays, and Thursdays. The Senior Software Engineer will be responsible for building and maintaining critical services within a service-oriented architecture that powers Protolabs’ digital manufacturing offerings. This role involves designing and delivering scalable backend systems that connect commerce, pricing, sourcing, and engineering platforms to create a seamless and dynamic customer experience. The engineer will contribute to bringing manufacturing solutions to life by enabling comprehensive, real-time offers for 3D printing, injection molding, CNC machining, and sheet metal fabrication. This position is ideal for an experienced engineer who enjoys solving complex integration challenges, building reliable services at scale, and working on software that directly impacts how customers design, quote, and manufacture parts.

Requirements

5+ years of experience building web applications and backend services
Strong proficiency in C#, Javascript and MSSQL for designing, developing, testing and monitoring production systems
Experience with relational databases, especially Microsoft SQL Server
Experience with Docker, Kubernetes, and CI/CD environments
Track record of robust feature implementation and successful feature delivery
Experience working in an agile team with product managers and quality engineers
Excellent communication and collaboration skills
Architecture: Service-oriented/Microservices
Backend: Microsoft .NET 10, C#, Entity Framework, MVC, Azure Service Bus
Frontend: HTML, Vue.js, TypeScript, CSS, SASS
DevOps: Docker, Rancher, Kubernetes, ADO, Azure Repos
Data: Microsoft SQL Server, Redis Knowledge
Strong problem-solving and debugging skills
Expertise in developing high-quality software
Understand software architecture/SOLID principles
Experience in Microsoft ‑ based technology environments
Experience in API design and integration
Experience in system design and scalability
Understand and have experience using version control systems
Ability to collaborate effectively across engineering, analytics, and business teams
Excellent work ethic, positive attitude, and strong sense of urgency
Familiarity with Vue.js
Must be a U.S. Citizen, lawful permanent resident (green card holder) or foreign national 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, deliver and maintain features end to end, working closely with stakeholders to solve complex problems
Build front and backend systems that integrate disparate services into a unified customer facing offer
Mentor junior engineers, coordinate cross-team initiatives and clearly communicate complex ideas
Improve quality by writing clear, efficient, testable code and participating in constructive code reviews
Participate in an off-hours support rotation once every 6 weeks
Improve the technical foundations of our platform and raise the bar within our team.
Be a proactive, collaborative and conscientious self-starter who doesn’t shy away from a challenge.