Software Engineer, CI Platform Infrastructure

Responsibilities

• Experiment with and prototype new features in a remote sandbox development environment to enable new capabilities in CI-related workflows.
• Debug workflow orchestration queueing delays and measure the performance of remote execution/cache infrastructure to improve correctness, reproducibility, and speed.
• Identify root causes of infrastructure-related reasons for test flakiness in CI.
• Optimize the speed of autoscaling CI workers to handle bursts in CI workloads from product engineering teams.
• Up-level observability and alerting of the CI platform across build systems, flaky test management systems, and the merge queue.
• Build an improved canarying mechanism to roll out workflow orchestration changes iteratively and safely.
• Design and build key pieces of a new CI platform for workflow orchestration, focusing on scheduling, queueing, backpressure, consistency, caching, fault tolerance, and observability.
• Work on scheduling work onto the most cost-efficient compute stack.

Requirements

• Bachelor’s and/or Master’s degree, preferably in CS, or equivalent experience.
• Interest in working on distributed systems engineering and optimization problems.
• General knowledge of most of the following: Kubernetes, EC2, Golang, Docker.
• Metrics-driven approach to decision-making, with an interest in delivering quantifiable impact.

Nice-to-Haves

• Experience with CI platforms, build systems, or workflow orchestration at scale.
• Background in optimizing for AI-scale software development workloads.