AI Agent Engineer

Lumos; San Francisco (CA); Remote; USD 175,000 - 300,000; Full time

Job summary

A fast-growing startup in San Francisco is seeking an AI Agent Engineer to develop core AI features and lead engineering efforts. The role involves designing agent pipelines and collaborating with security teams while fostering a strong engineering culture. Ideal candidates have strong software engineering skills and experience with AI-driven workflows, emphasizing reliability and observability. Competitive salary and generous remote work policies are offered.

Benefits

Remote work culture (+/-4 hours Pacific Time)

Medical, Vision, & Dental coverage

Company bonding trips

Optimal WFH setup

Unlimited PTO

Up to 16 weeks for expecting parents

Wellness stipend

Qualifications

• 5+ years of building and scaling end-to-end production systems.
• Experience in architecting robust agent SDKs.
• Familiarity with identity and access management systems.

Responsibilities

• Lead the development of agent pipelines.
• Architect composable agent SDKs.
• Design tracing tools for agent performance.

Skills

AI-driven workflows

Software engineering

API design

System performance

Python

TypeScript

Tools

React

GraphQL

Job description

Imagine having an enterprise-grade AppStore at work — one that ensures you can easily search, request, and gain access to any app you need, precisely when you need it. Lumos is solving the app and access management challenges for organizations of all sizes through a unified platform. Our fast-growing startup is pioneering the way to untangle the complex web of app and access management by building the critical infrastructure that defines relationships between app, identities and data.

Why Lumos?

• Jump on a Rocketship: Since launching out of stealth mode just over 2 years ago, our team has grown from 20 to ~100 people and our customer base has 10x’ed with companies like GitHub, MongoDB and Major League Baseball!
• Build with Renowned Investor Backing: Andreessen Horowitz (a16z) backed us since the beginning and we\'ve raised over $65m from Scale, Neo, Greg Brockman (President at OpenAI), Phil Venables (CISO at Google), and others.
• Thrive in a Unique Culture: You’ll join an early-stage company where you have actual influence on the trajectory of the company. We deeply care about our people and the philosophy we live by - check out our values here.

We’re looking for a AI Agent Engineer to join the team. You\'ll build and own core AI features, in addition to helping to ensure the health of our engineering systems. You will work across the stack, focusing on areas you are most excited about and that bring value to customers. Beyond your technical work, you will gain leadership opportunities early on as we grow our engineering team. You\'ll be involved in scaling the product, the team, and the entire company.

• Lead the development of agent pipelines: design modular SDK components, drive production rigor, and support the growth of junior engineers.
• Architect composable agent SDKs with built-in safety and robust fallback strategies.
• Design tracing tools and alert dashboards to ensure agent performance and quality.
• Own the agent lifecycle—from chaining and testing to CI/CD and production rollout.
• Collaborate closely with security and operations teams to ensure agent governance and auditability.
• Mentor and uplevel teammates on best practices in observability and resilience.
• Solve challenging technical problems across the stack to develop critical customer-facing features; includes the frontend (React, Typescript), communication layer (GraphQL, Apollo), and backend (Python, Flask, sqlalchemy).

What We Value

We’re looking for engineers who want to shape the next generation of intelligent agents—people who care deeply about building reliable, modular systems and elevating those around them. If you’re energized by architecting robust agent SDKs, creating tools that ensure safety and observability, and mentoring others, you’ll thrive at Lumos.

• You’ve built and deployed AI-driven workflows — such as tool-calling systems, retrieval-augmented generation (RAG) pipelines, or autonomous agentic orchestration using frameworks like LangChain, LangGraph.
• Strong software engineering experience with 5+ years of building and scaling end-to-end production systems.
• Strong knowledge of API design, system performance, and software architecture.
• Proficiency in modern programming languages such as Go, TypeScript, or Python, and familiarity with frameworks like React.
• Familiarity with identity and access management systems, such as SCIM, OAuth2, SAML, or integrating with IDPs and HRIS tools.
• $175,000 - $300,000

Benefits and Perks

• Remote work culture (+/-4 hours Pacific Time)
• Medical, Vision, & Dental coverage covered by Lumos
• Company and team bonding trips throughout the year fully covered by Lumos
• Optimal WFH setup to set you up for success
• Unlimited PTO, with minimum time off to make sure you are rested and able to be at your best
• Up to 16 weeks for expecting parents
• Wellness stipend to keep you awesome and healthy