Senior Software Engineer - Dev Tools

Meanwhile is looking for a Senior Software Engineer to build agentic workflows in the development stream instrument the delivery pipeline and improve CI reliability measured by delivery metrics

You will build and operate agentic loops for code review, debugging, refactoring, and testing, and instrument the development pipeline to establish baselines and measure outcomes such as cycle time and change failure rate. You will partner on CI reliability, evaluate tools and models, and build guardrails for safe agent operation, writing Python and TypeScript.

• Build and operate agentic loops for code review, debugging, refactoring, test generation, and an engineering help desk
• Instrument the development pipeline end to end
• Establish baselines and own delivery metrics such as cycle time, review latency, and change failure rate
• Evaluate new tools and models against the codebase and decide to adopt, park, or drop
• Partner with infrastructure on CI speed, flakiness, and reliability
• Build guardrails for agents including permissions, secret handling, provenance, and audit trails
• Improve repository structure, test coverage, documentation, and development environments
• Extend existing tooling and workflows rather than replacing by default
• Work with engineers to find where time is lost
• Write production code in Python and TypeScript
• Participate in a business-hours on-call rotation

• 10+ years of professional software engineering experience
• Experience building internal developer tooling or build and release systems
• Hands-on experience with LLMs and agentic tooling including evaluation
• Strong CI/CD depth
• Use of measurement to drive engineering outcomes
• Strong Python and ability to work in TypeScript
• Ability to track a fast-moving field
• Exceptional communication and influence without authority
• Track record of improving an inherited engineering environment
• Comfort with ambiguity
• Low-ego approach and high bar for precision
• Based in the SF Bay Area with ability to work in-office 3 days per week

• Fully covered health, dental, and vision for you and your family
• Meals provided in office
• Two annual company off sites (fully paid)