principal software engineering Principal Engineer tech_leadership 8+ yrs
$240,000 – $275,000
USD per year

About this role

Together AI is hiring a principal-level Principal Engineer in the software engineering function based in San Francisco, CA. The posting calls out experience with TypeScript, Java, Go, Next.js and roughly 8+ years of relevant work. Compensation is listed at $240,000–$275,000 per year.

Role
Principal Engineer
Function
software engineering
Level
principal
Track
Tech leadership
Employment
Full-time
Location
San Francisco, CA
Experience
8+ years
Department
Engineering
AI Summary
Design and build Together AI's core API platform, improving the Next.js monolith backend layer and architecting scalable next-gen solutions. Own critical-path code for public and internal APIs, define authentication/authorization patterns, establish performance standards, and mentor engineers across teams.

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Job description

from Together AI careers

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 APIs — including public customer APIs used directly by customers and via SDKs, CLIs, as well as the client APIs powering Together’s Cloud UI.

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
  • This is an excerpt. Read the full job description on Together AI careers →
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