Lyft
Mid
Build build/release infrastructure and dev tooling for Lyft's mobile engineers
This is a mid-level iOS-focused engineer role on Lyft's Mobile Tooling team, building build and release infrastructure — including Bazel-related tooling and CI — serving hundreds of internal mobile engineers, plus early AI agent workflows for developer productivity. Expect questions on developer tooling design, CI/build performance, and internal product sense.
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What this interview tests
- Mobile build/release infrastructure at scale (Bazel, CI pipelines)
- CLI tooling development in Python/bash
- Native mobile testing practices (unit, snapshot, UI)
- Cross-functional project management and stakeholder alignment
- Product sense for internal developer tools
- AI/agentic workflows for developer productivity (bonus)
Common question themes
How would you diagnose and fix a slow iOS build in a codebase with hundreds of modules
Describe a developer tool you built end to end and how you got engineers to adopt it
How do you approach maintaining a CI pipeline that needs to stay under 15 minutes
Tell me about a Bazel or build-system challenge you solved
How would you prioritize tooling work based on feedback from internal engineers
Have you built or used AI agent workflows to speed up code migrations or reviews
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