Senior Software Engineer

About the company Our client is a fast-growing software company. The role Raydar is recruiting for this role on behalf of our client. Design, build and run backend modules for a software platform, taking responsibility from early scoping through release and production support. Work alongside engineering and customer-facing colleagues to turn bespoke solutions into reusable products, including automated AI-driven workflows. What you'll do - Design and build backend platform modules that support business operations at scale. - Take charge of a product area across its full lifecycle, with attention to reliability, security and low error rates. - Collaborate with deployed engineers, customer success and technical leadership to generalize one-off solutions into reusable products. - Develop and operate AI agents in production, adding testing, safeguards, monitoring and feedback mechanisms. - Lead infrastructure initiatives from planning to rollout, such as internal tooling that lets non-technical colleagues set up custom modules. - Shape data structures, processing pipelines and connections to third-party systems, including those that lack APIs. - Handle on-call rotation and root-cause investigations for the systems you build. Requirements What we're looking for - At least 4 years of backend or systems engineering experience, with 6 to 7 years ideal; full-stack is fine if backend-heavy. - Experience running reliable, scalable production systems. - A degree from a top engineering school or engineering experience at a high-caliber technology company. - A history of taking a service or module from concept to stable production use on your own. - Hands-on experience delivering LLM-based or agent-based features to production users, as an applied engineer rather than a model researcher. - Daily use of AI coding tools. - Comfort working independently in a fast-paced, in-person team. - Ability to work on-site 5 days a week. Bonus points - Experience at a fast-growing startup. - Experience with Python or TypeScript. - Top engineering school background. Benefits Compensation and benefits - Base salary: USD 190,000 to 250,000 per year - Equity - Health, dental and vision coverage - Flexible time off Location and work model - San Francisco, California, United States - On-site, 5 days per week - Full-time