AI Engineer
Ursus, Inc. · Foster City, CA · Yesterday
HybridEngineering$180k–$220k/yrFull-time
Responsibilities
- Build & Ship
- Design and build MCP servers that expose data and analytics as discoverable, reliable tools for AI agents, with proper auth, scoping, and access controls
- Architect and ship agentic workflows: multi-step reasoning, tool use, orchestration patterns, and human-in-the-loop where needed
- Own the full lifecycle — API/tool design, deployment, monitoring, production hardening
- Reliability & Iteration
- Use evals to validate agent behavior before shipping, catch regressions, and debug production divergence
- Build observability and tracing to make agent behavior inspectable and auditable
- Tune for latency, cost, and reliability as models and data drift
- Execution & Collaboration
- Partner with Product Builders, design, and customers to ship working software (not prototypes)
- Build internal SDKs, reusable patterns, and shared context that raise the floor for the whole team
- Stay close to the fast-moving MCP/agent ecosystem and bring back what's relevant
- 3–7+ years of software engineering experience, with production systems shipped end-to-end
- Strong Python backend fundamentals; comfortable owning services from design through deployment (fullstack a plus)
- Hands-on experience building and operating LLM-powered agents in production — with concrete stories of what broke, how you fixed it, and what you'd do differently
- PRACTICAL FAMILIARITY WITH AGENTIC PATTERNS: tool use, structured outputs, prompt chaining, multi-agent coordination, and knowing when a deterministic workflow is the right call
- Experience designing/building MCP servers or equivalent tool-use / AI connector integrations
- Experience using evals to validate and debug agent behavior
- Comfortable with cloud deployment (GCP/AWS), containerized services, and async Python
- Strong product instinct — thinks about what users actually need and pushes back when a spec doesn't add up
- Individual compensation is determined by skills, qualifications, experience, and location.
- Compensation details listed in this posting reflect the base hourly rate or annual salary only, unless otherwise stated.
- In addition to base compensation, full-time roles are eligible for Medical, Dental, Vision, Commuter and 401K benefits with company matching.