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San Francisco, United States

Senior Backend Software Engineer

Raydar · San Francisco · United States

Salary
$225,000–$275,000 per year
Contract
Full time
Occupation
Software Engineer

Posted: 10/12/2026 · Last checked: 10/28/2026

Job description

Quoted in full from Raydar's job posting. Gavroche does not edit it.

About the company

Our client is a fast-growing software company.

The role

Raydar is recruiting for this role on behalf of our client. Act as a senior technical lead for backend engineering on a small team, shaping architecture and engineering standards. The work pairs server-side engineering with applied generative AI, in close partnership with researchers, engineers and designers.

What you'll do

- Design and build backend services that form the core of a software platform.

- Create infrastructure for AI-driven workflows, media generation pipelines and live data handling.

- Take ownership of system architecture across many services, and strengthen reliability with automated tests, performance measurement and monitoring.

- Collaborate with researchers, engineers and designers to deliver new features and APIs.

- Define coding guidelines and mentor others by example to lift overall engineering quality.

- Document your work clearly and explain technical choices to colleagues working side by side in an office.

Requirements

What we're looking for

- 5 to 10 years of backend engineering experience, with solid fundamentals in algorithms, data structures and system design.

- A track record of building backend systems that scale, including work with large data volumes, search and retrieval, and background job processing.

- Hands-on professional use of TypeScript and AWS.

- At least 12 months of professional experience building applications on large language models or generative AI, including autonomous agent-style systems.

- Time spent in a startup setting, either early-stage or rapidly growing.

- A formal university degree.

- Fluent English in reading, writing and speaking.

- Ability to work in the office five days a week in San Francisco, as a local resident or able to start immediately.

Bonus points

- Previous experience as a technical lead, setting direction and code standards for a team.

Benefits

Compensation and benefits

- Base salary: USD 225,000 to 275,000 per year

- Equity

- Health, dental and vision coverage

Location and work model

- San Francisco, CA, United States

- On-site, 5 days per week

- Full-time

From Gavroche data

Figures computed from live adverts on Gavroche; the job text above is the employer's.

Similar roles in San Francisco

200 open roles like this one; at most three per employer shown.

What software engineer adverts in the United States state

Middle half: 157,500 – 222,000 USD a year; median 193,000 USD.

From 2226 adverts by 381 employers that state a salary, annualised.

How software engineer roles in the United States are worked

3% fully remote · 2% hybrid · 95% do not say

Of 647 adverts. An advert that does not state a work mode is counted as not saying, not as on-site.

New openings in San Francisco, by week

  1. 8/3/2026 143
  2. 8/10/2026 193
  3. 8/17/2026 211
  4. 8/24/2026 210
  5. 8/31/2026 295
  6. 9/7/2026 271
  7. 9/14/2026 332
  8. 9/21/2026 390
  9. 9/28/2026 472
  10. 10/5/2026 431
  11. 10/12/2026 515
  12. 10/19/2026 369
  13. 10/26/2026 202

4,034 openings over 12 weeks, by the week they were published.

Other roles at Raydar

749 open, including roles outside the United States.