Sr' Software Engineer—Catalog Domain (Contractor)

This is a remote role, and we are currently receiving applications from Mexico.

The Senior Software Engineer, Catalog Domain is responsible for building and maintaining critical services within a service-oriented architecture that powers Protolabs’ digital manufacturing offerings. In this role, you will design and deliver scalable backend systems that connect commerce, pricing, sourcing, and engineering platforms to create a seamless and dynamic customer experience.

You’ll help bring manufacturing solutions to life by enabling comprehensive, real-time offers for 3D printing, injection molding, CNC machining, and sheet metal fabrication. This role 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.

What You'll Do

• 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

• 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

• 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