Raydar
Lead Software Engineer
$220K–$320K
San Francisco, California · Full-time · Posted Oct 12, 2026
- Experience
- 5+ years; candidates from larger companies should have a Staff or Principal title or a clear record of fast promotion.
About the job
Own and scale a high-volume backend platform, improve its speed, reliability and cost efficiency, and help deploy machine learning models into production data pipelines.
What you'll do
- Build and maintain platform infrastructure for data storage, job coordination, resource allocation and cloud releases.
- Address performance, resilience and capacity issues across multi-service systems as traffic grows.
- Share on-call duties and collaborate with machine learning engineers to host models and integrate them into live pipelines.
What they ask for
- 5+ years owning and scaling core infrastructure at a fast-paced startup or high-velocity technology company; candidates from larger companies should have a Staff or Principal title or a clear record of fast promotion.
- Full-stack skills and experience building reliable, large-scale backend systems that coordinate work across many services.
- Strong Python skills, or deep experience in another systems language and willingness to move to Python.
- Comfort taking part in on-call duties.
Nice to have
- Experience with cloud infrastructure and tuning model serving.
- Experience at an early-stage startup; a degree from a top computer science program.
Pay
USD 220,000 to 320,000 per year (base salary)
Tools
Python
AI focus
Collaborate with machine learning engineers to host proprietary models efficiently and integrate them into live data pipelines.
Model-written summary · the original posting is authoritative