Staff Engineer, API Core Platform
Together AI - San Francisco
Posted Feb 24, 2026
Benefits
- Parental leave
- Not verified
- Non-birth-parent leave
- Not verified
- Family-building benefits
-
- Fertility benefits: Not verified
- Adoption assistance: Not verified
- Surrogacy assistance: Not verified
- Mental health support
- Not verified
- Relocation assistance
- Not verified
- Childcare support
- Not verified
- Learning budget
- Not verified
- Verification
- Not verified
- Salary
- $240K-$275K From the posting source
- 401(k) match
- Not verified
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Market context
- U.S. role benchmark (BLS OEWS)
- $116,543 U.S. median for this role
- Projected growth (BLS Employment Projections)
- +9.8% - Much faster than average
121% above the BLS role benchmark for software engineering aggregate.
Matched to SOC 15-1252 - Software Engineering aggregate by role bucket.
Source: U.S. Bureau of Labor Statistics, OEWS, May 2024 and Employment Projections, 2024-2034.
Schedule
- Shift type
- Not verified
- Weekend work
- Not verified
Company
- Equity
- Offered From the posting source
Application
- Cover letter
- Not verified
- Assessment
- Not verified
- Deadline
- Not stated
Where they hire
State eligibility is not yet verified.
About this role
Staff Engineer, API Core Platform San Francisco Staff Engineer - API Core Platform About the role Together AI is seeking an experienced Backend Engineer to found Together's API Platform team within the Production Foundations organization. In this role, you will define, build, and scale the core systems and architecture that power Together's mission-critical cloud control-plane APIs - including public customer APIs used directly by customers and through SDKs and CLIs, as well as the client APIs powering Together's Cloud UI. This team is distinct from Together's dedicated Inference API team, but partners closely with it to deliver a cohesive customer platform experience. In the near term, you will improve and standardize the backend API layer within our primary Next.js monolith, raising the bar on reliability, performance, and consistency. In parallel, you will design and lead the evolution toward scalable, purpose-built next-gen API platform solutions optimized for different Public API and Client API use cases and traffic patterns - defining the long-term architecture and driving its incremental rollout. This is a deeply hands-on role for an engineer who thrives on writing critical-path code and building platforms that unify engineering efforts across teams. You will work across backend systems, infrastructure layers, identity and access flows, and developer tooling to establish a cohesive API strategy that supports Together's rapidly growing AI Cloud. Responsibilities - Design and drive the evolution of Together's API platform, defining how APIs are built, versioned, secured, tested, and operated across the company - Own and improve the backend API
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