Scale AI · 16 hours ago
Senior Software Engineer, Backend — Frontier Data
San Francisco Bay Area
Full-time
Onsite
Senior Level
$216K/yr - $270K/yr
5+ years expScale AI is a company focused on developing reliable AI systems for important decisions. They are seeking a Senior Backend Engineer to own major backend systems for frontier agentic data products, build scalable services and pipelines, and partner cross-functionally to deliver impactful systems.
AI InfrastructureArtificial Intelligence (AI)Data Collection and LabelingGenerative AIImage RecognitionMachine Learning
Responsibilities
Own major backend systems for frontier agentic data products, driving projects from early exploration through production deployment
Build scalable services and pipelines that support agent workflows (e.g., coding, tool-use orchestration, GUI/computer-use tasks), with strong reliability and observability
Architect modular, reusable backend systems that adapt to evolving product needs while maintaining scalability, reliability, and clean interfaces
Operate in high-ambiguity environments: break down open-ended problems, propose approaches, and execute with speed and clarity
Partner cross-functionally with product, research/ML, and infrastructure teams to define requirements and ship impactful systems
Improve system performance and cost efficiency through thoughtful architecture, profiling, and iterative optimization
Raise the engineering bar through design reviews, code reviews, and pragmatic best practices
Qualification
Required
5+ years of full-time software engineering experience (post-graduation)
Strong backend engineering fundamentals: distributed systems, API design, data modeling, and production reliability
Strong experience with Docker and containerized development/production environments (building images, debugging, and operating container-based services)
Demonstrated ability to ship quickly in ambiguous, fast-changing environments (high-growth startup experience is a plus)
Experience building systems that scale: queues, async processing, workflow engines, data pipelines, or similar
Comfort working close to AI/ML systems (production experience welcome; curiosity and strong fundamentals also valued)
Proficiency with SQL and modern database-backed application development
Benefits
Comprehensive health, dental and vision coverage
Retirement benefits
A learning and development stipend
Generous PTO
Commuter stipend
Company
Scale AI
Scale’s mission is to develop reliable AI systems for the world’s most important decisions.
501-1000 employees
H1B Sponsorship
Scale AI has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (82)
2024 (54)
2023 (29)
2022 (17)
2021 (10)
2020 (10)
Funding
Current Stage
Late StageTotal Funding
$15.9BKey Investors
MetaAccelTiger Global Management
2025-06-10Corporate Round· $14.3B
2025-06-04Series Unknown
2024-05-21Series F· $1B
Leadership Team
Jason Droege
Interim Chief Executive Officer
Dennis Cinelli
Chief Financial Officer
Recent News
CB Insights
2026-01-09
Crunchbase News
2026-01-07
Company data provided by crunchbase