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Senior Software Engineer, Platform

Astronomer - London, United Kingdom - In-office - posted 2026-10-02

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Astronomer is the company behind Astro, a unified DataOps platform powered by Apache Airflow, trusted by over 800 leading enterprises. The Platform Engineering team is seeking a Senior Software Engineer to join the R&D organization and work on production infrastructure at scale. In this role, you will: - Make high-quality, data-driven decisions on how to build the next generation of the production platform and deliver results in a high-scale PaaS environment. - Own and build testing, build, and deployment processes for code in a cloud-native environment, ensuring predictable, safe, and reliable delivery while the system evolves. - Collaborate across the company on designing production systems, setting standards, and making technology choices for new and existing products. - Work on a small but growing Platform/Reliability practice, reporting directly to the VP of Reliability, with direct involvement in decision-making on priorities and execution. - Participate in incident management and help determine sensible practices as the platform scales. - Create and maintain comprehensive internal documentation for systems and processes. - Be at the forefront of how the Platform Engineering team works together, with a focus on ownership, accountability, and operational excellence. You will directly influence how global organizations orchestrate data pipelines at scale, making them faster, more reliable, and easier to manage. REQUIREMENTS: - Strong experience in Non-Abstract Systems design and implementation. - Strong proficiency in Python and Golang with in-depth Kubernetes experience (CKA or equivalent or greater). - Experience with observability principles and technologies, including SLI/SLO definition and tracking. - Strong written and verbal communication skills with experience in globally distributed teams. - Passion for reliability and operational excellence; low tolerance for toil. - Ability to estimate scope accurately and coordinate with stakeholders to address risks and ensure successful delivery. - Experience with software development best practices: code review, testing, CI/CD, version control, automation, and debugging. - Proactive approach to identifying and addressing issues, with focus on ownership and accountability. BONUS: - SaaS/PaaS product experience across multiple cloud providers. - Familiarity with: CircleCI, Chronosphere (Prometheus), Splunk, Bazel, Istio, Playwright, Karpenter, GitHub Actions. - Deep knowledge of AWS, GCP, and Azure internals. - On-call rotation experience (this role involves periodic on-call). - Apache Airflow experience.

About Astronomer

AI / Data / Infrastructure — data orchestration platform and commercial home of Apache Airflow.

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