Software Engineer, Annotation Systems

Obvio•San Carlos, CA

About The Position

Obvio deploys AI-assisted cameras to make streets safer. We're looking for a Software Engineer to join the backend team 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.

Requirements

3–5 years of backend engineering experience
Experience building and maintaining production distributed systems
Comfort with operational practices — you write code with observability, alerting, and failure recovery in mind
Working knowledge of security principles, including least privilege and secure transport/storage
Ability to take reasonably well-scoped requirements and turn them into solid design and interfaces, asking good questions when things are ambiguous
A collaborative mindset — you give and take feedback well and enjoy working closely with teammates

Nice To Haves

Familiarity with human-in-the-loop systems, labeling tools, or ML data pipelines
Experience working in a fast-paced startup environment

Responsibilities

Help design and build 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 cross-functional requirements into clean APIs and backend abstractions
Collaborate with product, ML, and operations to streamline efficiency and feedback loops
Participate in design reviews and contribute to architectural decisions on your team's systems
Write clean, well-tested, maintainable code and give thoughtful code review feedback to peers