Senior Software Engineer

About the role

Protolabs is seeking a technical leader to manage the backend systems that power our digital manufacturing pricing engine. You will work within a complex marketplace environment to ensure our automated quoting processes remain accurate, scalable, and reliable.

Key facts

What you'll do

• Architect and build backend services for rate calculation, discounting, and billing integrations.
• Manage the full software development lifecycle from initial design through deployment and production monitoring.
• Collaborate with Product, Finance, Sales, and Data departments to convert business needs into technical solutions.
• Provide technical mentorship to junior and mid-level staff.
• Improve CI/CD workflows, infrastructure-as-code, and overall platform reliability.
• Perform root cause analysis on production issues and implement long-term fixes.
• Ensure all pricing APIs meet performance and SLA requirements.

Requirements

• Bachelor degree in Computer Science, Software Engineering, Mathematics, or equivalent experience.
• 7+ years of professional backend software engineering experience.
• 2+ years of production experience with billing, payments, or pricing systems.
• Proficiency in Python or C#.
• Experience with relational databases like PostgreSQL or MySQL, including schema design and query optimization.
• Ability to design RESTful or gRPC APIs.
• Knowledge of distributed systems, including event-driven architecture, idempotency, and retry logic.

Skills & tools

• Python, C#
• PostgreSQL, MySQL
• RESTful APIs, gRPC
• Distributed systems architecture
• CI/CD and infrastructure-as-code

Practical notes

• Eligibility: Due to ITAR regulations, this position is restricted to U.S. Citizens, lawful permanent residents (green card holders), or individuals with refugee or asylee status. Temporary visa holders (E, F-1, H-1, H-2, L, B, J, TN, or OPT) are not eligible.
• Compensation: Includes a competitive salary and annual bonus.
• Benefits: Health insurance (traditional or high deductible), HSA with employer contributions, FSA, dental, vision, life insurance, and disability coverage.
• Perks: 401k with immediate vesting and company match, Employee Stock Purchase Program (15% discount), paid caregiver leave, PTO, holiday pay, wellness hours, volunteer hours, and matching grants via the Protolabs foundation.
• Physical: Must be able to sit for extended periods and occasionally lift up to 25 pounds. The role may occasionally require presence in manufacturing areas with noise or machinery.