At Beacon Biosignals, we are hiring a Staff Backend Engineer to play a central role in our Verify stage. You will help shape and scale the core backend infrastructure behind GitLab CI and drive the integration of AI into CI/CD workflows, directly impacting performance, reliability, and usability for users running millions of CI jobs.
What You'll Do
- Shape and scale GitLab CI backend infrastructure to improve performance, reliability, and usability for users running high volumes of jobs.
- Design and implement AI-powered features for Agentic CI, including agents, agentic flows, and LLM-backed tooling integrated with GitLab's Duo Agent Platform.
- Define success criteria for AI in CI, establishing baselines, measurable outcomes, and clear signals to guide team iteration.
- Build instrumentation and observability to make AI-assisted CI trustworthy in production, including feature behavior metrics, dashboards, and safeguards.
- Own and drive measurable performance improvements across CI systems, forming hypotheses, running experiments, and validating results with data.
- Write secure, well-tested, maintainable Ruby on Rails code in a large monolith, improving features while reducing technical debt.
- Lead cross-functional technical work with Product, UX, and Infrastructure, influencing architecture and execution.
- Share standards, patterns, and learnings to raise the bar for responsible AI integration and evidence-driven engineering.
What We're Looking For
- Advanced proficiency with Ruby and Ruby on Rails, with experience building reliable backend services in a large codebase.
- Strong PostgreSQL skills, including data modeling, query tuning, and scaling large tables through proactive performance work.
- Hands-on experience building, running, and debugging high-traffic production systems, ideally in CI, workflow orchestration, or adjacent domains.
- Practical experience designing and shipping AI-powered backend features, with sound judgment about large language model limitations and responsible production use.
- A data-driven approach to engineering: defining hypotheses, establishing baseline metrics, instrumenting changes, and measuring outcomes.
- Familiarity with observability patterns and tools to diagnose issues, improve reliability, and guide iteration.
- Strong backend architecture and delivery practices, including secure design, well-tested code, and strategies for safe rollouts.
- Clear written and verbal communication skills, including writing technical proposals and collaborating effectively in a remote, asynchronous environment.
Technical Stack
- Ruby
- Ruby on Rails
- PostgreSQL
Team & Environment
The Verify stage focuses on collaboration, iteration, and helping GitLab users run fast, reliable, and scalable Continuous Integration (CI) pipelines.
Benefits & Compensation
- Benefits to support your health, finances, and well-being
- Flexible Paid Time Off
- Team Member Resource Groups
- Equity Compensation & Employee Stock Purchase Plan
- Growth and Development Fund
- Parental leave
- Home office support
Work Mode
This is a global remote position.
GitLab is proud to be an equal opportunity workplace and an affirmative action employer. All policies relating to recruitment, employment, development, advancement, and retirement are based solely on merit, regardless of race, color, religion, sex, national origin, age, citizenship, marital status, disability, genetic information, veteran status, or any other basis protected by law.
