# Senior Backend Software Engineer

> Raydar · San Francisco, United States · Full-time · Posted 2026-10-01

**Salary:** USD 160,000–200,000

**Workplace:** on_site

## Description

About the company

Our client is a technology company.

The role

Raydar is recruiting for this role on behalf of our client. Own the design and delivery of backend services for a data-heavy software platform, working directly alongside the founding team. The work spans high-volume data handling, workflow automation and third-party integrations, with full responsibility for architecture and implementation.

What you'll do

\- Build and scale distributed backend services that handle large volumes of documents and transactional data.

\- Own automation systems that interact with external web applications and portals.

\- Design dependable infrastructure for mixed-format data, including scanned files, PDFs and both structured and unstructured records.

\- Build orchestration, queuing, retry and monitoring tooling for long-running workflows that are prone to failure.

\- Partner with research and product engineers to move new machine learning capabilities into production.

\- Establish the engineering patterns that future team members will build on.

## Requirements

What we're looking for

\- At least 3 years of hands-on backend engineering, including responsibility for production systems that grew in scale and complexity.

\- Time spent at an organization with a strong reputation for engineering quality.

\- Practical background in building pipelines, coordinating multi-step jobs or working with very large, untidy datasets.

\- Bachelor's or Master's degree in computer science, math or a related field.

\- Solid knowledge of Python, microservices and distributed systems.

\- Ability to architect and deliver backend systems from start to finish with little supervision.

\- Genuine enthusiasm for a very small early-stage startup and a high-intensity pace.

\- Based in or willing to relocate to the San Francisco area.

Bonus points

\- Experience running LLMs or ML models in production.

\- Experience with browser automation or complex integration work.

## Benefits

Compensation and benefits

\- Base salary: USD 160,000 to 200,000 per year

\- Equity

Location and work model

\- San Francisco, CA, United States

\- On-site

\- In office 6 days per week

\- Full-time

## Apply

[Apply at Raydar](https://apply.workable.com/raydar/j/FCC3D2ABC9/apply)

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