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Founding Engineer (AI Infrastructure)

Jobgether • United Kingdom
Visa Sponsorship Relocation
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AI Summary

Join an early-stage AI infrastructure startup as the first engineering hire, transforming a working AI agent product into robust, scalable infrastructure. You will own the full stack—backend, infrastructure, frontend, and agent architecture—and design the core agent runtime. This role offers a path to CTO-level responsibility, with direct collaboration with the founder and frequent shipping to real customers.

Key Highlights
First engineering hire with broad ownership across backend, infrastructure, frontend, and AI agent systems.
Design and operate the agent runtime, including orchestration, memory, verification, and multi-agent workflows.
Path to CTO-level responsibility as the engineering organization grows.
Work directly with the founder to define technical priorities and architecture.
Based in Europe initially, with relocation to San Francisco within the first year.

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Key Responsibilities
Transform an existing AI agent product into scalable, reliable infrastructure capable of supporting substantial user growth.
Design, build, and operate the core agent runtime, including orchestration, memory, verification, and multi-agent workflows.
Develop across the full technology stack, including backend services, infrastructure, frontend applications, and AI agent systems.
Take technical initiatives from initial design through implementation, deployment, monitoring, and continuous improvement.
Establish the foundational technical architecture, engineering standards, development practices, and tooling for the engineering organization.
Work directly with the founder to define technical priorities and make high-impact product and architecture decisions.
Ship product and infrastructure improvements frequently, using feedback from real customers to guide iteration.
Build systems that are reliable, maintainable, observable, and capable of evolving as the product and customer base grow.
Help establish the technical foundation and engineering culture that will support future team expansion.
Take increasing ownership of technical strategy and organizational direction, with the potential to grow into CTO-level responsibility.
Technical Skills Required
Full-stack development AI agent systems Backend engineering

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Benefits & Perks
Competitive compensation: Annual salary of €80,000–€140,000
US visa sponsorship
Relocation support
Remote flexibility within Europe
Founding-level ownership
CTO growth opportunity
Direct founder collaboration
Broad technical scope
High-impact environment
Early-stage autonomy

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Nice to Have
Founder or early-stage startup experience
Familiarity with recruiting, agencies, professional services, or other service-delivery businesses
Demonstrated commitment and stability in previous roles

Job Description

This is a high-impact founding engineering opportunity at an early-stage AI infrastructure startup. You’ll work directly with the founder to transform a working AI agent product into robust, scalable infrastructure capable of supporting significant growth. As the first engineering hire, you’ll have broad ownership across backend systems, infrastructure, frontend development, and agent architecture. You’ll design and operate the agent runtime, including orchestration, memory, verification, and multi-agent workflows. Your technical decisions will shape the architecture, engineering standards, and development culture from the ground up. The role offers a path toward CTO-level responsibility as the engineering organization grows, with direct exposure to real customers and the opportunity to ship improvements frequently.
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Job Overview
Posted Date Oct 05, 2026
Employment Type Full-time
Experience Level Not Applicable
Location United Kingdom
Category Programming
Company Jobgether
Mentioned Skills
artificial intelligence ai gdpr san

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