Senior Software Engineer, Annotation Systems

About the role

We're seeking a Senior Software Engineer to lead the design and scaling of backend infrastructure that powers our annotation workflows. These systems sit at the core of our machine learning feedback loops and operational pipelines. You'll work across product, ML, and ops teams to build resilient, observable, and secure systems that translate ambiguous requirements into elegant software.

Responsibilities

• Design and scale distributed systems that support high-throughput data review and annotation pipelines
• Build systems that prioritize performance and reliability under real-world load
• Apply strong security and privacy practices, including fine-grained access control, secure data handling, and auditable workflows
• Translate messy, cross-functional requirements into clean APIs and backend abstractions
• Collaborate with product, ML, and operations to streamline efficiency and feedback loops
• Lead architectural decisions, conduct design reviews, and elevate engineering quality across the team
• Mentor engineers to improve system ownership, technical judgment, and long-term thinking

Requirements

• 8+ years of backend engineering experience
• Proven ability to design and scale distributed systems
• Operational rigor: you build systems with observability, alerting, and failure recovery in mind
• Strong understanding of security principles, including least privilege, secure transport/storage, and compliance awareness
• Ability to synthesize broad, sometimes ambiguous input into clean design and interfaces
• Experience mentoring engineers and guiding architectural direction on complex projects
• Bonus Points
• Familiarity with human-in-the-loop systems, labeling tools, or ML data pipelines
• Why Obvio
• Your work will help save lives and improve road safety
• Series A of $22M led by Bain Capital
• Fast-moving startup environment with meaningful ownership
• Competitive compensation and early-stage equity

Benefits

Additional Information

About Obvio AI Each year, more than 40,000 people in the U.S. leave home and never make it back due to traffic crashes. At Obvio, we believe these deaths are preventable. We deploy solar-powered, AI-assisted cameras to enforce traffic laws where pedestrians are most vulnerable-automating enforcement in ways that traditional systems cannot. Our approach has already led to a 50% reduction in reckless driving in early partner cities. Founded by the team behind Motive's AI dashcam and backed by Bain Capital Ventures and Khosla Ventures, we are building the intelligence layer for safer streets globally.

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