Platform Engineer
Posted on January 21, 2026 (about 4 hours ago)
Platform Engineer
Sleep is something we all share. It's fundamental to health, and Sleep Cycle's mission is to improve global sleep through its leading sleep‑tracking app. We are looking for a Platform Engineer to join the Infrastructure team and help build and maintain the infrastructure that powers the world's No.1 Sleep App.
Your mission
As a Platform Engineer in our Infrastructure team you will develop, build and maintain the internal products, services and platforms that power Sleep Cycle. You will ensure our systems remain robust, scalable, and secure while enabling product teams to focus on delivering exceptional user experiences. Work spans backend systems, cloud infrastructure, internal tools and build/release processes, including both modernisation work and greenfield initiatives.
Key responsibilities
- Develop and maintain high quality backend systems in Python built for scale and performance.
- Develop and support internal web‑based systems used by teams across the organisation.
- Design, deploy and operate cloud architectures from the ground up, including monitoring and observability.
- Own data transformation tasks such as migrations, restructuring and integrations.
- Improve and evolve build and release processes, including CI/CD pipelines.
- Contribute to major technical initiatives such as system replacements, refactoring and modernisation of legacy services.
- Collaborate closely with other developers to ensure shared systems remain healthy, secure and reliable.
- Write well tested, maintainable and high quality code.
Requirements
- Bachelor’s degree in Computer Science, Software Engineering or related field, or equivalent practical experience.
- 3+ years of professional software development experience.
- Strong experience with Python.
- Experience building backend systems capable of handling high load, ideally with FastAPI.
- Practical experience designing, setting up and deploying cloud architectures from scratch, including monitoring and alerting (preferably Google Cloud).
- Hands‑on experience setting up CI/CD workflows (preferably GitHub Actions).
- Comfortable executing large‑scale refactoring and system modernisation.
- Solid testing skills and experience with automated testing practices.
- Fluency in English.
Nice to have
- Experience with infrastructure as code, preferably Terraform.
- Experience with NoSQL databases, ideally Google Datastore.
- Experience with web development (React or Next.js as a plus).
- Experience with native mobile development (Swift or Kotlin).
- Familiarity with data engineering workflows.
- Experience supporting and facilitating team development.
- Experience with RESTful APIs.
Who you are
You are humble, curious and highly motivated. You enjoy variation in your work across backend systems, internal tools, infrastructure and release processes. You are self‑driven, take initiative and are not afraid of large technical challenges. You care about software architecture and delivering high quality solutions, and you enjoy collaborating with others in an environment where continuous improvement is part of everyone's responsibility.
Workplace & location
You'll collaborate in Sleep Cycle's beautiful office space on the 20th floor of the Kineum skyscraper in Gothenburg.
About Sleep Cycle AB
With millions of daily users and over three billion nights analysed across more than 150 countries, Sleep Cycle is a leading sleep‑tracking app that helps users improve their sleep health. Sleep Cycle is listed on Nasdaq Stockholm (ticker: SLEEP) with headquarters in Gothenburg, Sweden.
How to apply
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Application process
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