> Markdown version of [/jobs/ext/4623412-software-test-automation-engineer](https://www.wearedevelopers.com/jobs/ext/4623412-software-test-automation-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Software Test Automation Engineer

- **Company:** 3M
- **Location:** Saint Paul, MN, United States
- **Experience:** Expert
- **Salary:** $145,676 - $178,049
- **Contract:** Permanent contract
- **Skills:** Testing (Software), Application Programming Interfaces (APIs), Artificial Intelligence, Automation of Tests, C++ (Programming Language), Computer Networks, Databases, Computer Engineering, Embedded Software, Interoperability, Message Queuing Telemetry Transport (MQTT), Software Tools, OPC Unified Architecture, Software Engineering, Software Systems, Systems Integration, Working Model 2D, Wi-Fi Technology, Backend, Information Technology, Low Latency, Software Performance, Service Stack
- **Published:** November 7, 2026
- **Apply:** https://www.juju.com/job/7_0E9BA69477C963291F439AD72D216854

## About the Role

To set you up for success in this role from day one, 3M requires (at a minimum) the following qualifications: Bachelor's degree or higher in Computer Science, Software Engineering, Computer Engineering, Information Technology, Electrical Engineering or a related technical field (completed and verified prior to start) from an accredited institution.

Seven (7) years of software development experience including coding automated tests for server-side or backend software systems in a private, public, government or military environment

Additional qualifications that could help you succeed even further in this role include: Master's degree in Computer Science, Software Engineering, Computer Engineering, Information Technology, Electrical Engineering or a related technical field (completed and verified prior to start) from an accredited institution. Experience testing APIs, services, databases, and distributed software systems. Have a working knowledge of industrial automation protocols such as CIP, OPC-UA, and MQTT. Experience with C/C++ and embedded applications. Understanding of low-latency, time-critical network communications over Wi-Fi Ability to work effectively across a broad technology stack and to coordinate with external development resources. Proficiency with AI software development tools Work location:

Work location: This role follows an on-site working model, requiring the employee to work at least four days a week at the 3M Center in Maplewood, MN. Travel: May include up to 10% domestic or international Relocation: May be authorized Must be legally authorized to work in country of employment without sponsorship for employment visa status (e.g., H1B status). Supporting Your Well-being

## Description

Job Description:Collaborate with Innovative 3Mers Around the World Choosing where to start and grow your career has a major impact on your professional and personal life, so it's equally important you know that the company that you choose to work at, and its leaders, will support and guide you. With a wide variety of people, global locations, technologies and products, 3M is a place where you can collaborate with other curious, creative 3Mers. This position provides an opportunity to transition from other private, public, government or military experience to a 3M career. The Impact You'll Make in this Role As a Senior Software Test Automation Engineer, you will have the opportunity to tap into your curiosity and collaborate with some of the most innovative people around the world. Here, you will make an impact by: 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. Appling 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.