Company
SaaS
FoundingEngineer
Neural analysis suggests this role is
optimal for Mid+ candidates.
“Founding Engineer. Skills: Agent infrastructure, AI agents, SaaS platform. Design core infrastructure. Build core infrastructure”
What You'll Achieve.
Scale platform toward Series A
Industry & Context.
Ambiguous problem definition
No visa sponsorship, Relocation required
What They're Looking For.
Must Have
2+ years software engineering, Proficiency in JavaScript, Proficiency in TypeScript, Experience with agent orchestration, Experience with LLMs, Experience with web scraping, Experience with Linux servers, Shipping code to production, Building products end-to-end, Computer science fundamentals, Authorized to work in US, Available to work onsite 5 days
Nice to Have
Founder experience, Early-stage startup engineer, Familiarity with distributed systems, Familiarity with microservices, Familiarity with data pipelines, Familiarity with cloud infrastructure
What You'll Do.
Design core infrastructure
Build core infrastructure
Operate core infrastructure
Develop LLM-powered workflows
Develop web scraping systems
Develop knowledge graph architecture
Architect production-grade systems
Maintain production-grade systems
Own projects end-to-end
Contribute across the stack
Write developer documentation
Create technical tutorials
Build internal tooling
Develop experimental builds
How You'll Work.
Team & Collaboration
Founding team; CEO and CTO
Process & Methodology
Roadmap priorities
Full Job Description
ABOUT THE ROLE A seed-funded B2B SaaS startup in the people-data and AI agents space is looking for a high-agency Founding Engineer to build core agent infrastructure and help scale the platform toward a Series A milestone. You'll work directly with the founding team — including the CEO and CTO — owning critical systems that power a people-data and agent platform used by developers and enterprises alike. This is a rare opportunity to shape technical strategy from the ground up at a fast-growing, well-backed startup. WHAT YOU'LL DO - Design, build, and operate core infrastructure including APIs, LLM-powered workflows, web scraping systems, and large-scale knowledge graph architecture. - Architect and maintain production-grade systems capable of handling millions of API requests, with a strong focus on performance, cost efficiency, and reliability across cloud and Linux server environments. - Own projects end-to-end — from ambiguous problem definition through deployment and iteration — shipping quickly without sacrificing system integrity. - Collaborate directly with the CEO and CTO on technical decisions, roadmap priorities, and foundational architectural choices that define long-term direction. - Contribute broadly across the stack, including developer documentation, technical tutorials, internal tooling, and experimental builds that showcase and stress-test APIs. WHAT WE'RE LOOKING FOR Required: - 2+ years of experience in full-stack or backend software engineering. - Proficiency in JavaScript and TypeScript. - Experience with agent orchestration, LLMs, or web scraping. - Experience working with Linux servers in a production environment. - Proven track record of shipping code to production supporting a large user base. - Experience building entire products end-to-end, not just isolated features. - Strong computer science fundamentals. - Must be authorized to work in the United States — visa sponsorship is not available. - Must be available to work on-site in San Fr
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