Founding Engineer: AI Platform & Architecture (Equity)

Dex; Greater London; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Equity stake (0.5–1%)

Job summary

Dex in London is building multimodal AI to convert on-site notes into regulation-compliant risk reports. You will be the first engineering hire, owning foundational architecture, scalability, reliability, and core AI systems alongside the technical co-founder.

This role is hands-on, heavily ownership-driven, with direct interaction with field assessors and a clear path toward Head of Engineering or CTO as the team grows. Equity is offered.

Qualifications

• 2 to 4+ years of software engineering experience shipping end-to-end production systems.
• Systems-first architectural thinker with strong code quality control.
• Hands-on experience with AI coding agents and LLM-based applications.
• Product-minded, owner mindset, and bias for shipping.

Responsibilities

• Own architecture, scalability, reliability, and security of the stack across web, mobile, and backend services.
• Design and refine the multimodal AI pipeline that processes on-site audio, images, and notes into structured, cited technical reports.
• Orchestrate multiple AI coding agents across parallel worktrees, maintaining architectural integrity and high code quality at velocity.
• Work directly with safety assessors to evaluate failure modes and ship immediate product improvements.
• Set the baseline for engineering culture, deployment pipelines, and early technical hiring as the company scales.

Skills

Software engineering

AI systems

Production systems

Systems architecture

Tools

AI coding agents

Job description

Dex in London is building multimodal AI to convert on-site notes into regulation-compliant risk reports. You will be the first engineering hire, owning foundational architecture, scalability, reliability, and core AI systems alongside the technical co-founder.

This role is hands-on, heavily ownership-driven, with direct interaction with field assessors and a clear path toward Head of Engineering or CTO as the team grows. Equity is offered.