Senior Backend Engineer; Ruby on Rails), Verify: Pipeline Execution

Overview

Git Lab is an open-core software company that develops the most comprehensive AI-powered Dev Sec Ops  Platform, used by more than 100,000 organizations. Our mission is to enable everyone to contribute to and co-create the software that powers our world. When everyone can contribute, consumers become contributors, significantly accelerating human progress. Our platform unites teams and organizations, breaking down barriers and redefining what's possible in software development.

Thanks to products like Duo Enterprise and Duo Agent Platform, customers get AI benefits at every stage of the SDLC. The same principles built into our products are reflected in how our team works: we embrace AI as a core productivity multiplier, with all team members expected to incorporate AI into their daily workflows to drive efficiency, innovation, and impact.

Git Lab is where careers accelerate, innovation flourishes, and every voice is valued. Our high-performance culture is driven by our values and continuous knowledge exchange, enabling our team members to reach their full potential while collaborating with industry leaders to solve complex problems. Co-create the future with us as we build technology that transforms how the world develops software.

As a Senior Backend Engineer on the Git Lab Verify:

Pipeline Execution team, you  help shape and scale the core of Git Lab CI. You’ll work on the systems that power how pipelines are created, scheduled, and executed, building and improving features like pipeline schedules, merge trains, review apps, browser testing, and more. Your work will directly impact performance, reliability, and usability for users running millions of jobs, from small teams to the largest enterprises.

You’ll focus on maturing this critical area of the product by improving our large, complex Ruby on Rails monolith, with an emphasis on database performance, scalability, and code quality. In this role, you’ll lead initiatives that optimize high-throughput background processing, reduce technical debt, and evolve our architecture so Git Lab CI remains a best-in-class solution. You’ll partner closely with other Verify teams, Product, and Infrastructure to design and deliver new capabilities, while ensuring existing features stay fast, secure, and dependable.

Some examples of our projects:

• Optimizing performance and scalability of the CI database, including strategies for our largest and fastest-growing tables
• Expanding merge train functionality to support new merge strategies and faster feedback cycles
• Improving pipeline execution speed and reliability across diverse workloads and configurations
• Reducing technical debt and addressing issues tied to missed service level objectives (SLOs) to improve overall product quality

• Write high-quality, efficient, and maintainable Ruby on Rails code that powers Git Lab’s Continuous Integration (CI) pipelines, from scheduling and orchestration to execution and reporting.
• Lead improvements to the reliability, performance, and scalability of our CI pipeline execution domain, including optimizing database access patterns, background processing, and job orchestration for very high throughput workloads.
• Design, build, and iterate on features like merge trains, pipeline schedules, review apps, browser testing, and related CI capabilities that help customers ship secure software faster.
• Analyze and resolve complex production issues in a large, high-traffic monolith, driving structural changes that improve stability, reduce technical debt, and support zero-downtime deployments.
• Partner with product managers, frontend engineers, quality engineers, and other Verify teams to plan work, break down complex problems, and deliver end-to-end solutions that improve the CI user experience.
• Use Postgre
  
  SQL expertise to model data, tune queries, and scale large tables that support our CI features, including proactive performance investigations and remediation.
• Create and maintain clear, user-focused documentation and implementation guides that help Git Lab users configure, troubleshoot, and get the most value from CI pipelines and related features.
• Provide technical…