Intermediate Backend Engineer, SSCS: Supply Chain

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure software faster. 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. GitLab 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. * Fortune 500® is a registered trademark of Fortune Media IP Limited, used under license. Claim based on GitLab data. Fortune 100 refers to the top 20% ranked companies in the 2025 Fortune 500 list, published in June 2025. Fortune and Fortune Media IP Limited are not affiliated with, and do not endorse products or services of GitLab. An overview of this role As an Intermediate Backend Engineer on the SSCS Add-On team at GitLab, you'll help build a dedicated software supply chain security feature for regulated enterprise organizations. In this role, you'll contribute to capabilities that help customers control software dependencies, verify artifact integrity, and identify malicious packages before they reach production. Your work will sit at the intersection of backend engineering, product integration, and security-focused development. You'll build in Ruby on Rails, work alongside Go services as needed, and help connect Add-On functionality with GitLab's existing security scanning experience so findings are surfaced consistently for users. Because the team is small, you'll have meaningful influence on implementation details, team practices, and the product experience. This role is part of GitLab's all-remote, async-first, values-driven environment, where clear written communication and thoughtful coordination across time zones are essential. What you’ll do Implement well-scoped backend features across the Add-On's supply chain security product, including package policy integrations, ingestion pipeline improvements, signing and verification support, and reliability-focused work, delivering maintainable code on agreed timelines and meeting team-defined delivery commitments. Build and maintain integrations between Add-On functionality and GitLab's existing software composition analysis scanning infrastructure so findings appear consistently and accurately in merge request security reports, reducing integration issues and supporting a reliable user experience. Write and maintain comprehensive automated test coverage, including RSpec and integration tests, to improve test reliability, reduce regressions, and support safe, consistent releases as the codebase grows. Take on work across multiple feature areas as priorities evolve, contributing as a generalist where the team needs support most. Participate actively in code review by giving thoughtful, actionable feedback and incorporating feedback constructively into your own work to help maintain code quality and reduce rework. Contribute clear internal documentation for the features and behavior you ship so teammates can support, extend, and troubleshoot the product effectively. Coordinate with adjacent Software Supply Chain Security teams, including Dependency Firewall and Malware Database, as the Add-On brings together capabilities from across GitLab, helping deliver aligned functionality and smoother cross-team execution. Collaborate effectively in an async-fir ... (truncated, view full listing at source)