Senior Software Engineer, Developer Experience

This is a fully remote position, open to applicants in California.

📋 Description

• Develop and deliver tools that engineers and their agents utilize on a daily basis, including command-line interfaces (CLIs), desktop integrations, and interfaces for monitoring, unblocking, and guiding autonomous agents.

• Take responsibility for the adoption, distribution, and support of tools.

• Design and enhance agentic loops, harnesses, skills, and contexts to ensure reliable engineering practices.

• Create agent workflows to facilitate framework upgrades, language migrations, and dependency updates.

• Implement guardrails, testing, and automation to ensure safe changes made by agents.

• Monitor leading indicators of increasing complexity within the codebase.

• Diagnose and resolve fundamental issues causing friction in development workflows for both humans and agents.

• Collaborate with builders both within and outside the engineering team to identify challenges and assess adoption and impact.

• Establish technical direction and provide mentorship to engineers regarding agent design, tooling, and the health of the codebase.

⛳️ Requirements

• Experience shipping developer tools at scale, such as CLIs, desktop integrations, configuration management, or internal platforms.

• Developed agent workflows that accomplish tasks typically requiring a team several weeks to complete.

• Profound understanding of agentic loops, including tool usage, context management, verification, and failure handling.

• Extensive experience with application or platform frameworks, including their upgrades and ongoing management.

• Proven track record of leading migrations or significant refactors from the planning phase through to implementation.

• Substantial experience in large, complex codebases: generally 10+ years for Staff positions or 7+ years for Senior roles.

• Excellent communication abilities and the capacity to establish trust by taking ownership of work outcomes.

• Experience in harness engineering or context engineering is a plus.

• Familiarity with agent observability tools, such as OpenTelemetry, is advantageous.

• Background in distributing internal tools and assessing their adoption is beneficial.

• Knowledge of developer productivity metrics, testing infrastructure, or CI/CD practices is a plus.

• Contributions to open source projects related to developer tools or agent frameworks are considered a plus.

🏝️ Benefits

• Remote work opportunities.

• Comprehensive medical insurance.

• Flexible time-off policies.

• Retirement savings plans.

• Modern family planning options.