Senior/Staff Founding Full-Stack Engineer – Agent Systems
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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: $200,000.00 - $300,000.00 per year
Work Location: In person