Demo

Software Engineer, API (Backend)

Anthropic
San Francisco, CA Full Time
POSTED ON 3/3/2025
AVAILABLE BEFORE 4/28/2025

About the role

Anthropic is seeking talented and experienced Software Engineers to join our API team and help build the world's most trusted AI platform for developers. Since launch, the Anthropic API has seen rapid growth and adoption by companies of all sizes to build AI applications with our industry-leading models. The API serves as the primary channel for safely and broadly distributing AI's benefits across all sectors of the economy. You'll work on building and scaling frontier model capabilities while ensuring they're easy to use, safe, and provide a world-class developer experience.

We have two specialized teams that are currently hiring. Team placement occurs after the interview process, taking into account your interests and experience alongside organizational needs:

API Capabilities: You'll work on shipping the world's most intelligent and capable APIs, partnering directly with research to bring frontier capabilities to developers. This team owns core capabilities including vision, tool use, computer use, and prompt caching. Your work will directly impact how developers interact with our most advanced models.

API Knowledge: You'll focus on transforming Claude into a true knowledge worker by ensuring the model has access to and understanding of the right knowledge at the right time. You'll work on making it possible for developers to securely give Claude access to their data while automatically processing and retrieving relevant information. You'll partner directly with research to bring state-of-the-art retrieval advancements to developers.

Responsibilities:

  • Design and implement products that we launch in the Anthropic API, serving hundreds of thousands of developers
  • Partner with research teams to productize cutting-edge model capabilities
  • Participate in API design reviews to ensure consistent, intuitive developer experiences
  • Collaborate with cross-functional teams to ship a world-class product
  • Support and debug production issues through on-call rotations
  • Design processes (e.g. postmortem review, incident response, on-call rotations) that help the team operate effectively and never fail the same way twice

You might be a good fit if you:

  • Have 8 years of relevant industry experience, 3 years leading large scale, complex projects or teams as an engineer or tech lead
  • Are passionate about designing tasteful APIs and developer-focused products
  • Enjoy talking directly with users and view "product" as part of your job
  • Can work independently and thrive in a fast-paced environment
  • Have deep expertise in distributed systems and API architecture
  • Have excellent written and verbal communication skills to build consensus with stakeholders

Technical Stack

  • Languages: Python, TypeScript
  • Frameworks: FastAPI, React
  • Infrastructure: GCP, Kubernetes, Cloud Run
  • Databases: PostgreSQL (AlloyDB), Vector Stores
  • Tools: Statsig, Prometheus, Grafana

If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Software Engineer, API (Backend)?

Sign up to receive alerts about other jobs on the Software Engineer, API (Backend) career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$146,673 - $180,130
Income Estimation: 
$176,149 - $220,529
Income Estimation: 
$77,657 - $95,021
Income Estimation: 
$97,257 - $120,701
Income Estimation: 
$97,257 - $120,701
Income Estimation: 
$123,167 - $152,295
Income Estimation: 
$123,167 - $152,295
Income Estimation: 
$146,673 - $180,130
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Anthropic

Anthropic
Hired Organization Address San Francisco, CA Full Time
About the role: Anthropic is seeking talented and experienced Infrastructure Engineers to join our team and support the ...
Anthropic
Hired Organization Address New York, NY Full Time
About the role As a startup sales leader at Anthropic, you'll build and lead a high-performing team of account executive...
Anthropic
Hired Organization Address San Francisco, CA Full Time
About the role: We are seeking an experienced, highly adaptable IT Support Specialist to join our rapidly scaling IT tea...
Anthropic
Hired Organization Address San Francisco, CA Full Time
About the Role As a Research Engineer on the Societal Impacts team, you'll design and build critical infrastructure that...

Not the job you're looking for? Here are some other Software Engineer, API (Backend) jobs in the San Francisco, CA area that may be a better fit.

API Engineer/Software Engineer

Saxon Global, San Francisco, CA

Software Engineer, API and Zones

Cloudflare Inc, San Francisco, CA

AI Assistant is available now!

Feel free to start your new journey!