# Lead Software Engineer

> Raydar · San Francisco, United States · Full-time · Posted 2026-10-12

**Salary:** USD 220,000–320,000

**Workplace:** on_site

## Description

About the company

Our client is a fast-growing software company.

The role

Raydar is recruiting for this role on behalf of our client. Take ownership of a backend platform that handles high-volume processing workloads, with a focus on speed, dependability and cost control. Collaborate with machine learning colleagues to get models running in production, and share on-call duties within a small platform group.

What you'll do

\- Own and improve the backbone platform that executes customer workloads, keeping it quick, dependable and economical as demand grows.

\- Collaborate with machine learning engineers on hosting proprietary models efficiently and fitting them into live data pipelines.

\- Build and maintain core infrastructure, including data stores, job coordination, resource allocation and cloud releases.

\- Resolve performance, resilience and capacity problems across multi-service systems as traffic increases.

\- Join the on-call rotation and take responsibility for the overall health of the platform.

## Requirements

What we're looking for

\- 5+ years of experience owning and scaling core infrastructure at a fast-paced startup or a respected, high-velocity technology company.

\- If coming from a larger company, a Staff or Principal title or a clear record of fast promotion.

\- Full-stack skills; this is not a pure infrastructure or DevOps position.

\- Solid background building reliable, large-scale backend systems that coordinate work across many services.

\- Strong Python skills, or deep experience in another systems language along with willingness to move to Python.

\- Comfort taking part in on-call duties.

Bonus points

\- Experience with cloud infrastructure and tuning how models are served.

\- Experience at an early-stage startup.

\- A degree from a top computer science program.

## Benefits

Compensation and benefits

\- Base salary: USD 220,000 to 320,000 per year

\- Equity

\- Health, dental and vision coverage

\- Parental leave

\- Wellness benefits

\- Flexible time off

Location and work model

\- San Francisco, CA, United States

\- On-site, 5 days per week in office

\- Full-time

## Apply

[Apply at Raydar](https://apply.workable.com/raydar/j/48E12FCAE7/apply)

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