Senior Engineer Pipelines

About Buildkite

At Buildkite, our mission is to unblock every developer on the planet. We’ve rethought how software delivery should work and have built a platform that is fast, reliable, secure, and able to scale to the needs of the most demanding high-growth tech companies globally including Uber, Airbnb, Shopify, Canva, PagerDuty, Lyft, and Pinterest.

Our engineering teams work across AU/NZ and US Pacific time zones — a deliberate choice that lets us move fast with real-time collaboration. At the moment, we are prioritising engineers who are based in these regions.

Job Overview

In this role, you’ll help design, build, and scale tools that empower some of the world’s best software engineering teams. You’ll collaborate closely with engineers, designers, and product managers to deliver impactful features and improvements while working on challenges at the intersection of developer experience, scalability, and performance.

This is a highly collaborative, hands-on role where you’ll contribute to product development, influence architectural decisions, and help shape the future of Buildkite’s platform.

🚀 What You’ll Do

• Collaborate with the engineering team to shape upcoming feature or fix
• Work deeply in our Ruby on Rails monolith, including our PostgreSQL databases
• Investigate and resolve issues in our production systems — following a problem from symptom to root cause
• Provide or respond to feedback on GitHub pull requests
• Help customers unblock themselves by diagnosing product behaviour or pipeline issues
• Iterate on schema and data changes, and ensure migrations and deploys remain safe and smooth (we ship code on Fridays!)
• Contribute to architectural discussions and help steer the technical direction of the product

🎨What You Bring

• 5+ years of experience in engineering
• Have deep experience designing, developing, and maintaining complex Ruby on Rails applications in production
• Comfortable working with performance at scale from N+1 queries to indexing strategies to diagnosing slow paths
• Experience using observability tools like Datadog, Honeycomb, etc.
• Care about code quality and know how to balance perfect with practical
• Enjoy solving hard problems with minimal supervision. You can zoom out to see the big picture and zoom in to debug a specific query, API call, or race condition
• Comfortable wearing many hats: helping a customer one moment, pitching an idea to the team the next, digging into the database, or refining product requirements
• Understand good development practices: writing clear commits, thoughtful pull requests, and reliable tests with tools like RSpec

Key Technical Stacks & Components:

• Ruby on Rails
• PostgreSQL
• GraphQL
• React
• Amazon ECS
• RDS