Senior Web Playback Engineer - Platforms & Partner Experience

Spotify; Greater London; Hybrid; GBP 60,000 - 80,000; Full time

Job summary

A leading audio streaming service in London is seeking a Senior Software Engineer to enhance media SDK performance for a seamless playback experience. You will take ownership of playback metrics, collaborate on media architecture, and drive improvements in reliability and observability. Ideal candidates should have significant JavaScript expertise and an understanding of media playback APIs. This hybrid role offers flexibility while contributing to a dynamic team environment.

Benefits

Flexible work arrangements

Collaborative team environment

Inclusive workplace culture

Qualifications

• Experience in Web or Playback Systems Engineering.
• Deep knowledge of modern JavaScript and TypeScript.
• Confidence with media playback APIs like MediaSource Extensions and WebRTC.
• Familiarity with CI systems and testing at scale.
• Experience with native media stacks is a plus.
• Ability to work well in multi-functional environments.

Responsibilities

• Take end-to-end responsibility for playback reliability metrics.
• Develop team architecture for new media formats.
• Improve CI and observability systems.
• Collaborate with teams to define shared contracts.
• Advance video reliability through ads fallback.
• Contribute to dashboards and metrics templates.

Skills

Web or Playback Systems Engineering

JavaScript and TypeScript

Media playback APIs

CI systems and hermetic testing

Native media stacks (Android/iOS, C++, Rust)

Ads technology

Job description

A leading audio streaming service in London is seeking a Senior Software Engineer to enhance media SDK performance for a seamless playback experience. You will take ownership of playback metrics, collaborate on media architecture, and drive improvements in reliability and observability. Ideal candidates should have significant JavaScript expertise and an understanding of media playback APIs. This hybrid role offers flexibility while contributing to a dynamic team environment.