Senior/Staff Founding Full-Stack Engineer – Agent Systems
Job Description
Senior/Staff Founding Full-Stack Engineer – Agent Systems
Location: San Francisco, CA (On-site, Monday–Friday)
Type: Full-time
Level: Senior
Compensation: $200,000 – $300,000/year
Sponsorship: Visa sponsorship available (H-1B, O-1, OPT)
About the Role
We're building AI coworkers for IT teams, with a rigorous focus on security, identity, authorization, and reliable agent execution. We're looking for a Founding Full-Stack Engineer who thrives on building complex systems from the ground up and wants significant impact on the future of AI infrastructure.
This role is backend- and systems-heavy, but you'll own the product end-to-end, spanning infrastructure, APIs, and user-facing experiences. You'll develop workflow systems for long-running human and AI agent tasks, design identity and authorization systems, build secure credential infrastructure, and work on sandboxed environments and production-grade APIs powering the next generation of AI systems.
What We're Looking For
Must-haves:
- 4+ years of professional software engineering experience
- Proven experience designing and operating complex production systems
- Strong backend and systems architecture proficiency
- Able to work in-person in San Francisco, Monday through Friday
- High ownership and comfort navigating ambiguity
Strongly preferred:
- Experience across frontend, infrastructure, data, and product layers
- Background in security, IAM, authorization, or workflow orchestration
- Experience with multi-tenant SaaS or AI infrastructure
- Strong understanding of failure modes, threat models, and system reliability
- Ability to move fast without compromising security or correctness
Nice to have:
- Experience with permission/identity systems
- Experience with secrets or privileged-access platforms
- Experience with workflow engines and reconciliation systems
- Experience with agent infrastructure and evaluation systems
- Experience with sandboxes or virtualized execution
- Experience with enterprise integrations
- Prior founding/early-stage engineering experience owning architecture and production
About the Company
A fast-growing, pre-seed AI infrastructure startup building foundational technology for AI agents, with a specific focus on security and reliability. Collaborative, high-impact environment for engineers passionate about building complex systems from day one.
Benefits
Competitive compensation, health insurance, unlimited PTO, office meals, visa sponsorship for qualified candidates.
How to Apply
Apply with your CV.
Pay
Pay: $200,000.00 - $300,000.00 per year
Work Location
Work Location: In person