Senior / Staff AI Platform Engineer

About Suno We're building the world's first creative entertainment platform, where the entire world can feel the joy and fulfillment of making music. Music is for everyone: Our users include everyone from grandmothers creating songs for their loved ones, to Grammy winners using Suno Studio, our power tool, to make the most popular hits in the world. Building the future of entertainment requires ambition. The pace is fast, the problems are hard, and the work demands ownership and intensity. For the right people, it’s incredibly rewarding: a chance to shape a new medium, work with a small team that cares deeply about quality, make music, drink too much coffee, and build something that millions of people use to express themselves in ways that were never before possible. Suno is the fastest growing consumer entertainment company and the leader in AI music. We are backed by leading investors including Bond Capital, Menlo Ventures, Lightspeed Venture Partners, IVP, Forerunner, Union Square Ventures, Alkeon, Quiet, Matrix Partners, Schroders Capital and, NVentures (venture arm of NVIDIA). About the Role Suno's song creation agent is becoming something other teams build on. As a Senior AI Platform Engineer, you'll build the APIs, SDKs and shared tooling, including eval infrastructure, tracing and model routing, that let engineers across Suno ship agent features faster. You'll work closely with the agent team, partner teams and Infra, and your customers are other engineers, so adoption is a measure of success. You'll help shape the platform as it grows. Listen to the song we made about it: https://suno.com/s/bxgQXsn06Vz3KKEn What You'll Do Design and build the platform APIs and SDKs that other teams use to build agent features. Develop shared eval infrastructure, including the eval runner, results storage and dashboards, and help the team decide what to build and what to buy. Implement end-to-end tracing and observability, so any request can be followed across services from prompt to audio. Manage model provider routing, fallback, rate limits and cost controls. Partner with engineering teams across Suno to onboard them onto the platform with docs and hands-on support, and with Infra on the reliability and scale of the agent runtime. Help more people turn ideas into music by making it faster and safer for teams across Suno to ship agent features. What You'll Need Must-Haves 4–6 years building and scaling backend or platform systems in production, in any language. Experience on a team that supports other developer teams, including building a platform, API or SDK that other teams adopted. Experience with production LLM or agent systems, for external or internal users. Depth in distributed systems and observability, including tracing across services. Comfort working with internal customers: scoping with partner teams, earning adoption and handling ambiguity. Nice-to-Haves Experience building an eval or tracing product. Experience running LLM gateway or model routing infrastructure. Experience writing SDKs that other teams use. Experience with Python backends. Work Location Policy This role is expected to work from the designated Suno SF office 5 days a week, per Suno's company policy. Full-time employees will receive competitive equity packages, and comprehensive benefits. The actual base salary offered may vary depending on location, skills, qualifications, and experience. Listen to the Suno version of this role! https://suno.com/s/bxgQXsn06Vz3KKEn Additional Notes Applicants must be eligible to work in the US. Perks & Benefits for Full-Time Employees Company Equity Package 401(k) with 3% Employer Match & Roth 401(k) Medical, Dental, & Vision Insurance (PPO w/ HSA & FSA options) 11 Paid Holidays + Unlimited PTO & Sick Time 16 Weeks of Paid Parental Leave Creative Education Stipend Generous Commuter Allowance In-Office Lunch (5 days per week) Compensation $228K- $363K Suno is proud to be an Equal Opportunity Employer. We consider qualified applicants without regard to race, color, ancestry, religion, sex, national origin, sexual orientation, gender identity, age, marital or family status, disability, genetic information, veteran status, or any other legally protected basis under provincial, federal, state, and local laws, regulations, or ordinances. We will also consider qualified applicants with criminal histories in a manner consistent with the requirements of state and local laws, including the Massachusetts Fair Chance in Employment Act, NYC Fair Chance Act, LA City Fair Chance Ordinance, and San Francisco Fair Chance Ordinance.