Junior Software Development Engineer, Embedded Engineering Productivity in Glasgow

At Sonos we want to create the ultimate listening experience for our customers and know that it starts by listening to each other. As part of the Sonos team, you’ll collaborate with people of all styles, skill sets, and backgrounds to realize our vision while fostering a community where everyone feels included and empowered to do the best work of their lives. This role is located on-site at our Glasgow office. This position is office‑based, meaning regular in‑person collaboration or use of office equipment is essential to maximize effectiveness for this team and/or position. Qualified applicants must live within commuting distance of our Glasgow office locations and should expect to be in office a minimum of 4 days per week.

Sonos seeks innovative engineers to help fuel our rocketing success. We are setting new standards for the audio industry and reshaping the way consumers engage with music. As a Software Development Engineer on the Embedded Player team, you will bring your perspective and influence the way we think about high quality. You’ll apply your creativity and engineering skills to help shape our system architecture vision which serves as the foundation for which our experiences are built on.

What You’ll Do

• Advocate for an automation test strategy, influencing software quality early in the development lifecycle by driving the confidence needed to evaluate release readiness across our family of products and technologies.
• Review requirements, behavior specifications, user stories, and source code changes to develop effective, early‑stage test strategies that validate code merges and support product readiness decisions.
• Engineer new automation and tools, and optimize existing ones to improve testing efficiency, stability, and performance metrics across the Sonos product ecosystem.
• Collaborate proactively with firmware development engineers during new product development to debug software/hardware interactions and root‑cause issues.
• Proactively maintain and troubleshoot automation systems to deliver stable, trustworthy test results that support confident decision‑making by firmware developers.
• Perform peer code reviews to assure code quality and test coverage.
• Work closely with third‑party test vendors to manually validate software features and ensure functional quality.
• Act on ideas and bring visibility to your work via various technical forums (demos, tech‑talks, hack‑weeks).

What You’ll Need

Basic Qualifications:

• Demonstrated experience programming in Python.
• Ability to read and understand firmware code written in C/C++.
• Experience with Linux as a development platform.
• Working knowledge of modern source code control tools and CI/CD frameworks.
• Must be able to translate product/feature requirements and code changes into test cases.
• Inquisitiveness in understanding how components and technologies operate to their core.

Preferred Qualifications:

• Experience working with embedded systems.
• Experience designing and developing test automation with Pytest.
• Experience using data to substantiate design decisions.

If you don’t have 100% of the skills listed, we strongly encourage you to apply if interested.

Additional technologies we use across our teams:

• Audio codecs – AAC, MP3, OGG, WAV.
• Multichannel audio home theatre formats – Dolby, Dolby ATMOS, DTS.
• Wireless connectivity protocols for embedded systems – WiFi, Bluetooth.
• Network infrastructure – network protocols, switches, routers, VLANs.
• Code quality tools – SonarQube, Sentry.IO, Valgrind.
• Build system tools – Yocto, Meson, CMake.
• Data tools – Tableau, Datadog.
• Platform as a service tools – Kubernetes, Docker containerization.
• AWS cloud services.

Your profile will be reviewed and you’ll hear from us once we have an update. At Sonos we take the time to hire right and appreciate your patience.