Staff Mobile Engineer: Instrumentation SDK (iOS/Android) - Observability | Spain | Remote

Requirements:

• Strong mobile engineering experience (iOS Swift/Obj-C, Android Kotlin/Java)
• Demonstrated experience building or maintaining mobile SDKs or platform libraries
• Experience with performance-sensitive code and making pragmatic tradeoffs
• Excellent written and verbal communication skills
• Comfortable working in a fully remote, globally distributed team

What You'll Be Doing:

• Build and evolve mobile instrumentation SDKs for iOS and Android
• Design and ship SDK features such as session tracking, crash reporting, etc.
• Own projects end-to-end and collaborate cross-functionally
• Ensure quality through automated tests, CI, and documentation
• Mentor teammates, engage with open-source community

Nice to Haves:

• Familiarity with OpenTelemetry
• Experience contributing to observability OSS
• Experience with cross-platform frameworks or native bindings
• Work on crash aggregation, session replay, or sampling for mobile telemetry

Perks and benefits:

• 100% Remote, Global Culture
• Transparent Communication
• Innovation-Driven Environment
• Empowered Teams
• Career Growth Pathways
• 30 days annual leave with dedicated shutdown days
• Equal Opportunity Employer
• AI coding assistants and frontier models available