Senior Developer, CI Architecture

Responsibilities

• Define and evolve reference CI architectures for GitHub Actions across Product Engineering, including job decomposition and parallelization, caching and artifact strategy, test partitioning and execution, and multi-platform builds.
• Partner with teams to redesign slow or fragile pipelines and lead time-boxed engagements with measurable outcomes.
• Improve CI developer experience by making failures easier to diagnose and fix, improving ergonomics, and reducing opaque processes.
• Build tooling, abstractions, templates, and golden workflows so best practices are the default path.
• Drive application-layer performance optimization across build and compilation strategies, dependency management, and toolchain performance.
• Improve test architecture and reduce flakiness in partnership with service and application owners.
• Establish observability-to-action loops by translating CI metrics into architectural changes, including queue versus execution time, stage-level regressions, and flaky rates.
• Help teams interpret signals and prioritize high-leverage fixes.
• Co-develop golden workflows and guardrails with CI Platform, with CI Architecture focusing on usability and patterns and CI Platform focusing on enforcement capability, secure defaults, and platform primitives.

Requirements

• Experience designing or evolving CI/CD pipelines, preferably with GitHub Actions.
• Hands-on ability to improve build and test performance through compilation caching, dependency optimization, parallelization, and test sharding or partitioning.
• Deep familiarity with multi-platform builds and testing across macOS, Windows, and Linux.
• Strong software engineering fundamentals and systems thinking.
• Practical debugging skills, including isolating bottlenecks, reasoning from logs and metrics, and driving fixes across multiple layers.
• Ability to collaborate across teams and codebases and influence without direct ownership.

Nice-to-haves

• Knowledge of build systems and toolchains such as Rust, Node, pnpm, and mobile toolchains.
• Experience with monorepos, large-scale CI, or developer productivity initiatives.
• Experience building internal tooling, including CLI tools, workflow generators, and reusable actions or workflows.
• Experience using observability data, such as Datadog CI metrics, to drive performance improvements.

Compensation and Benefits

• USA-based roles: annual base salary of $153,000 USD to $214,000 USD.
• Canada-based roles: annual base salary of $144,000 CAD to $202,000 CAD.
• Benefits include health, dental, 401k or RRSP, paid time off, an equity grant, and applicable incentive programs.