Senior Software Engineer

The role

Raydar is recruiting for this role on behalf of our client. Own major components of a core execution system, covering its reliability, speed, resource use and measured results. The role suits an experienced software engineer with strong computer science fundamentals who wants to move into advanced automation work and collaborate closely with technical leadership.

What you'll do

• Build core execution components such as tool invocation, state tracking across long sequences, failure recovery and context handling.
• Improve latency and resource use, tracking cost per completed task and helping keep token usage within budgets.
• Write robust, concurrent production code that interacts with desktop applications on restricted corporate machines.
• Design reproducible, adversarial test suites based on real user scenarios rather than synthetic tasks.
• Translate validated user scenarios into test cases and expand how many common steps the system completes end to end.
• Raise the engineering standard through thorough code review and sound design decisions.
• Work with integration, product and customers to refine how the system interacts with tools and users.

What we're looking for

• Depth in Python and one other programming language.
• Extremely strong software engineering fundamentals.
• Willing to be in the office in San Francisco every weekday.

Bonus points

• Five or more years of professional experience.
• A background from a highly ranked computer science program.
• Experience with desktop automation or programmatically controlling applications.
• Experience at hyper-growth startups.
• Familiarity with enterprise deployment constraints on locked-down corporate workstations.
• Experience building agents or agentic AI systems.

Compensation and benefits

• Salary: $180K - $330K
• Equity

Location and work model

• San Francisco, CA, United States
• On-site, 5 days a week
• Full-time