Senior Software Quality Engineer

Hubs; United States; Hybrid; USD 110,000 - 150,000; Full time

Benefits offered by this job

Health Insurance

FSAs

HSA

Dental and Vision

Life Insurance

Disability

Paid leave

3 weeks PTO + Wellness

401k match

ESP P

Company stock purchase program

Protolabs grants

Job summary

Proto Labs in Maple Plain, MN, is hiring a Senior Software Quality Engineer for a hybrid role (onsite Tue–Thu). You will design risk-based test strategies, build automated tests in C#/.NET and Python, and own CI/CD testing.

Expect collaboration with engineers, product managers, and ops to improve testability and release confidence. The role emphasizes API testing, defect investigation, root cause analysis, and mentoring teammates while delivering reliable web applications and APIs in an agile

Qualifications

• Bachelor’s degree in CS/Software Eng or related field, or equivalent practical experience.
• 5+ years of experience in Software Testing or Software Quality Engineering.
• Experience in QA for enterprise web applications and APIs.
• Strong programming in C#/.NET or Python.
• Experience designing CI/CD test automation with stages and quality gates.
• Strong knowledge of API testing, integration testing, and defect investigation.
• Experience with Git-based workflows and agile cross-functional development.
• Ability to communicate quality risks and mentor teammates.

Responsibilities

• Define risk-based test strategies for new features and critical workflows.
• Design and maintain automated tests and frameworks using C#/.NET and Python.
• Own the team’s CI/CD test-automation strategy, including test stages and quality gates.
• Build API, integration, system, and end-to-end coverage balancing speed and reliability.
• Collaborate with engineers to improve testability and prevent defects.
• Validate API reliability and performance with targeted testing.
• Investigate defects, flaky tests, and production issues; lead root-cause analysis.
• Assess release risk using test results and production signals; mentor teammates.
• Write clean, well-documented code following established standards.
• Participate in code reviews and drive process improvements.
• Collaborate with QA, engineers, analysts, and operations.

Skills

Test automation

CI/CD

API testing

C#/.NET

Python

Git

Agile

Automation frameworks

Test design

Root cause analysis

Education

Bachelor's degree in Computer Science / Software Engineering or related field

Tools

Playwright

Selenium

Postman/Newman

Azure DevOps

GitHub Actions

Job description

Join our team as a Senior Software Quality Engineer!

This is a HYBRID role - onsite Tuesday-Thursday in Maple Plain, MN.

We are seeking a Senior Software Quality Engineer to help our agile engineering team deliver reliable enterprise web applications and APIs. This is a hands-on senior individual-contributor role for an engineer who combines strong test-automation skills with a practical, risk-based approach to quality. A primary focus of this role is building dependable automated testing into CI/CD pipelines so the team receives fast feedback and can release with confidence.

You will work closely with software engineers, product managers, business analysts, and architects throughout the development lifecycle. Rather than acting as a final quality gate, you will help the team build quality into design, implementation, delivery, and production operations. You will influence testability, develop maintainable automation primarily in C#/.NET and Python, own the continuous-testing approach within CI/CD, and provide clear evidence about product and release risk.

What You Will Do:

• Define risk-based test strategies for new features, integrations, and critical business workflows
• Design and maintain reliable automated tests and frameworks using C#/.NET, Python, and appropriate testing tools
• Own the team’s CI/CD test-automation strategy, including test stages, quality gates, reporting, and failure diagnostics
• Build effective API, integration, system, and end-to-end coverage while balancing execution speed, reliability, and maintainability
• Partner with engineers throughout development to improve testability, prevent defects, and strengthen shared ownership of quality
• Validate API reliability and performance, supplemented by targeted exploratory and functional testing where appropriate
• Investigate defects, flaky tests, and production issues; lead root-cause analysis and durable corrective actions
• Assess release risk using test results, defect trends, and production signals, and mentor teammates in quality-engineering practices
• Write clean, maintainable, and well documented code following established development standards
• Participate in code reviews and contribute to continuous improvement of development practices
• Collaborate effectively with engineers, analysts, QA, and operations teams
• Communicate progress, risks, and dependencies clearly to team members and stakeholder
• Explore and apply AI based tools or techniques to improve development efficiency and automation (where appropriate)

What You Bring:

• Bachelor’s degree in Computer Science, Software Engineering, Information Systems, or a related field, or equivalent practical experience
• 5+ years of experience in Software Testing, Software Quality Engineering or Quality Assurance
• Experience in software quality engineering, software development in test, or a related engineering role
• Proven ability to design maintainable test frameworks and automated coverage for enterprise web applications and APIs
• Strong programming and debugging skills in C#/.NET or Python, with the ability to contribute in both environments
• Experience designing CI/CD test automation, including test stages, quality gates, reporting, and failure investigation
• Strong knowledge of API testing, integration testing, and defect investigation
• Experience with Git-based workflows and agile, cross-functional product development
• Ability to communicate quality risks, influence engineering practices, and mentor teammates

What Sets You Apart:

• Experience with performance, load, or resilience testing for web applications and APIs.
• Experience with browser and API automation tools such as Playwright, Selenium, or Postman/Newman.
• Experience with Azure DevOps, GitHub Actions, or comparable CI/CD platforms.
• Working knowledge of SQL, relational databases, observability, and production telemetry.
• Familiarity with security and accessibility testing; relevant quality, cloud, or automation certifications are a plus.

What's In It For You:

We offer a competitive salary and total rewards package

We offer amazing benefits including but not limited to:

• Health Insurance: Traditional OR High Deductible plan
• Flexible Spending Accounts
• Health Savings Account (including employer contributions)
• Dental and Vision
• Basic and Supplemental Life Insurance
• Short-Term and Long-Term Disability
• Paid caregiver leave
• You will receive at least 3 weeks of PTO + Wellness + Holiday Pay + Volunteer Hours
• 401k with company match and immediate vest
• Employee Stock Purchase Program at a discounted rate
• Matching grants through Protolabs foundation
• And More!

Proto Labs maintains ITAR-compliant operations in all of our United States based facilities. Due to ITAR regulations, this role is only open to 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.

Proto Labs, Inc. is an Equal Opportunity Employer

Physical Demands:

While performing the essential duties of this job, the employee is regularly required to sit; use a computer keyboard, monitor and mouse, telephone and printer; reach with hands, and arms, talk, see and hear. The employee is occasionally required to stand, walk, stoop or kneel and must occasionally lift and/or move up to 25 pounds.

Work Environment:

Indoors (A/C); nonsmoking; the majority of this job function is performed in an office setting requiring normal safety precautions. However, there may be job duties that require the employee to spend time in the manufacturing areas exposed to machinery and noise; eye protection occasionally required. Occasionally works in outside weather conditions. Occasionally works near moving mechanical parts and in high, precarious places and is occasionally exposed to wet and/or humid conditions, fumes or airborne particles, toxic or caustic chemicals, risk of electrical shock and vibration. The noise level in the work environment is usually quiet to moderate.

Protolabs offers a competitive total rewards package, and compensation mix vary based on position, such as base wage, as well as other earnings including incentives and commissions. Actual pay offered will vary depending on multiple factors which may include, without limitation, job function, work experience, specialized skills, training, education, and certifications.