Principal Engineer, Duo Agent Platform

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About This Role

GitLab operates an intelligent orchestration platform for DevSecOps, helping organizations boost developer productivity, enhance operational efficiency, and lower security risk. The company seeks a Principal Engineer to help build the Duo Agent Platform across the software lifecycle. This senior technical leadership position involves setting technical direction, working hands-on from proof-of-concept to implementation, and collaborating across multiple teams to ensure agentic capabilities are reliable, observable, and fast. The platform spans agent…

Job Description

Responsibilities

• Define technical direction for a significant area of the Duo Agent Platform across multiple teams and partner with management and product to shape a six-month roadmap
• Build the orchestration layer for agent reliability, covering session lifecycle, tool invocation, context assembly, concurrency, retries, and graceful failure modes
• Drive initiatives from proof-of-concept through architecture to full implementation
• Participate in the incident management on-call rotation to support availability goals for GitLab.com
• Write design documents, architecture narratives, and decision records for cross-team alignment
• Ensure architecture compatibility across multi-tenant GitLab.com, Dedicated, and Self-Managed deployments while respecting data governance boundaries
• Design extensibility surfaces enabling customers to build custom agents and integrate external agents into workflows
• Drive down the cost and latency of agentic requests while collaborating on model selection, routing, and credit consumption
• Define evaluation practices via offline benchmarks and online experiments to measure task completion, accuracy, and cost
• Build governance and safety controls with Security and Compliance, including policy-driven execution, permission semantics, and audit traceability
• Complete interview training and participate in departmental hiring as a technical interviewer or panel member

Requirements

• 8+ years of software engineering experience
• 3+ years at the Staff, Principal level or equivalent senior technical leadership
• Hands-on production experience building on large language models including agent loops, tool calling, context management, retrieval, and prompt evaluation
• Background in distributed systems such as service decomposition, fault tolerance, observability, and operational resilience under multi-tenant load
• Experience defining evaluation frameworks and using benchmark and experiment results for architectural decisions
• Experience designing human-in-the-loop controls, safety guardrails, and responsible AI practices
• Ability to drive alignment across engineering, product, infrastructure, and security on ambiguous problems
• Experience mentoring senior engineers and shaping technical direction across multiple teams without direct authority
• Proficiency in one or more of Ruby, Go, Python, or TypeScript with a willingness to work across the stack
• Excellent written and asynchronous communication skills for a globally distributed organization

Core Skills

Benefits

• Flexible Paid Time Off
• Team Member Resource Groups
• Equity Compensation and Employee Stock Purchase Plan
• Growth and Development Fund
• Parental Leave

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