Founding Engineer

New
J
JobgetherAI Infrastructure
Based in Europe and genuinely open to relocating to San Francisco within the first year.Full-TimeSenior
Salary€80,000–€140,000
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Job Details

Experience
At least 2 years of experience
Required Skills
Frontend DevelopmentFull Stack DevelopmentData modelingLLM

Requirements

  • At least 2 years of experience shipping production software, or an equivalent track record of building and launching real systems as a founder or solo builder.
  • Demonstrated experience building and operating LLM or AI agent systems in production with real users.
  • Strong full-stack capabilities across backend, infrastructure, frontend, and AI/agent layers.
  • Experience transforming working prototypes into reliable infrastructure including architecture, data modeling, runtime design, and orchestration.
  • A track record of owning technical decisions independently as a founder, early engineering hire, or solo technical lead.
  • Strong founder mindset and a bias toward ownership, execution, experimentation, and building from first principles.
  • Experience with agent orchestration, agent memory, evaluations, verification systems, or multi-agent workflows is highly valued.
  • Familiarity with recruiting, agency, or service-delivery businesses is an advantage.
  • Strong computer science fundamentals.
  • Based in Europe and genuinely open to relocating to San Francisco within the first year.

Responsibilities

  • Redesign, scale, and productionize an existing agentic system to support substantial user growth and real-world workloads.
  • Architect and operate the agent runtime, including orchestration, memory, verification, reliability, and other systems required for trustworthy AI workflows.
  • Own technical initiatives end to end across backend engineering, infrastructure, frontend development, and agent systems.
  • Establish the technical stack, engineering standards, development practices, and team norms as the first engineering hire.
  • Make high-impact architectural and technical decisions with significant autonomy and direct collaboration with the founder.
  • Deliver improvements and new capabilities on a frequent cadence, with software continuously shipped to real business customers.
  • Help shape the future engineering organization, including technical hiring and team development as the company scales.
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€80,000–€140,000
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