Founding AI Engineer

Dex; Greater London; On-site; GBP 120,000 - 180,000; Full time

Job summary

Dex is seeking its first dedicated engineering lead to build an internal AI platform end-to-end. You’ll own architecture, product direction, and work directly with partners to create ML capabilities that give them a competitive edge.

This founding, high-ownership role requires shipping from zero to production with significant autonomy in an early-stage setting. You’ll shape how the firm identifies the next generation of founders.

Qualifications

• 5+ years in software eng with Python for backend and AI workflows.
• Experience integrating APIs and working with LLMs.
• Proven autonomy to ship from zero to production.
• Strong backend design and data architecture skills.
• Security and compliance for internal systems.

Responsibilities

• Integrate disparate internal tools and external APIs into a unified AI platform.
• Automate data ingestion and CRM updates from unstructured text.
• Develop meeting intelligence workflows from transcripts.
• Define architecture and roadmap from concept to production.
• Build and deploy predictive ML models using proprietary data.

Skills

Python

API Integration

LLMs & AI

Autonomy

Backend design

Data architecture

Security & compliance

Tools

LLMs

APIs

CRM

Data platforms

Job description

This role is with one of Dex's trusted partner companies. We work closely with their teams to truly understand their culture, goals, and what they're looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process.

The role

This is a top-tier early-stage venture firm, with a 15-year track record of identifying and backing companies that went on to define their industries. Their investment and talent teams operate globally, but manual coordination across their diverse toolset has become a bottleneck. This role exists to solve that. You are the firm's first dedicated engineering hire, building an internal AI platform end-to-end. This is a founding, high-ownership seat: you'll own the architecture and product direction, working directly with partners to build the ML layer that gives them a competitive edge. This isn't a narrow feature-build; it's about shaping how a leading firm identifies the next generation of founders.

The work

• Integrate disparate internal tools and external APIs (CRM, calendar, data platforms, LLMs) into a unified AI platform.
• Automate data ingestion and CRM updates from unstructured text (deal memos, meeting notes).
• Develop meeting intelligence workflows, extracting actions and relationship context from transcripts.
• Define the platform's architecture and product roadmap, from concept to production.
• Build and deploy predictive ML models for founder identification, market timing, and portfolio risk, leveraging proprietary data.

What You Bring

• 5+ years in software engineering, with strong Python across backend, automation, and AI workflows. You're comfortable across the full stack.
• Proven experience integrating APIs (CRMs, calendars, data platforms) and hands-on work with LLMs, agents, or AI-enabled workflows.
• You've taken products from zero to production with significant autonomy, ideally in an early-stage setting.
• Strong backend system design and data architecture skills, including data scraping and structuring.
• A strong understanding of security and compliance for internal systems handling sensitive data.