Senior Backend Engineer (Ruby), Plan: Spec-Driven Development

📋 Description

• Lead backend features from early product discussions through design, implementation, rollout, and
• Build flows, APIs, and data models behind agent-generated work items, implementation plans, durable
• Develop evaluation and benchmarking systems that measure workflow quality, token cost, and success
• Use Ruby on Rails and Python to build reliable production systems with PostgreSQL, GraphQL, and
• Collaborate with product, design, engineers, users, and partners to shape scope and trade-offs.
• Coordinate multi-person projects in GitLab's asynchronous, all-remote environment.

🎯 Requirements

• Strong Ruby on Rails experience in a large production codebase; production Python experience.
• Proven track record leading substantial projects with multiple engineers and measurable outcomes.
• Product-minded, owning features end-to-end, shaping scope and learning from adoption.
• Full-stack background with focus on backend; ability to read frontend code and design APIs.
• Solid API design and SQL fundamentals; experience with GraphQL and PostgreSQL performance is a plus.
• Experience exploring AI-assisted development; ability to mentor and lead technically across teams.

🎁 Benefits

• See Benefits to support your health, finances, and well-being
• Flexible Paid Time Off (PTO)
• Team Member Resource Groups
• Equity Compensation & Employee Stock Purchase Plan
• Growth and Development Fund
• Parental Leave