Senior Test Automation Engineer

3M; Minnesota; On-site; USD 146,000 - 178,000; Full time

Job summary

3M is seeking a Senior Software Test Automation Engineer to design, code, and maintain automated tests for server-side components and APIs. You will develop reusable automation frameworks, ensure secure communications, and collaborate with cross-functional teams to improve performance and reliability.

Responsibilities include leading test strategies, identifying defects, and contributing to engineering best practices in a fast-paced environment at the Maplewood, MN location.

Qualifications

• Bachelor’s degree in a technical field and 7+ years of software development experience.
• Experience coding automated tests for server-side or backend software.
• Experience with APIs, services, databases, and distributed systems is a plus.
• Ability to work across a broad technology stack.

Responsibilities

• Designing, coding, and maintaining automated tests for server-side software components, APIs, services, and integrations.
• Developing and enhancing reusable automation frameworks, test utilities, mock services, and validation tools.
• Applying security best practices, including encryption and secure communications, across system design and implementation.
• Troubleshooting and optimizing software performance, reliability, and interoperability across hardware and software interfaces.
• Identifying, documenting, troubleshooting, and tracking software defects in collaboration with development teams.
• Providing technical leadership on a cross-functional team and contribute to engineering best practices appropriate for a mid-senior level role.

Skills

Automation testing

Software development

Security best practices

Technical leadership

Education

Bachelor's degree in Computer Science or related field

Master's degree in Computer Science or related field

Tools

C/C++

Embedded systems

OPC-UA

MQTT

Wi‑Fi low-latency networks

AI software development tools

Job description

3M is seeking a Senior Software Test Automation Engineer to design, code, and maintain automated tests for server-side components and APIs. You will develop reusable automation frameworks, ensure secure communications, and collaborate with cross-functional teams to improve performance and reliability.

Responsibilities include leading test strategies, identifying defects, and contributing to engineering best practices in a fast-paced environment at the Maplewood, MN location.