Founding AI Engineer (Pre-Seed DTC Fintech)

Founders Factory Ltd.; City of Westminster; On-site; GBP 5,000; Full time

Job summary

A fintech startup is searching for a Founding AI Engineer in London to optimize and unify AI features. This role involves prototyping new AI functionalities using Python and Next.js and allows for significant autonomy in building and scaling products. The ideal candidate will have expertise in the LLM stack and a strong bias for rapid iteration. Competitive monthly salary with an equity stake in the business is offered.

Benefits

£5,000/month salary

Significant equity position

Access to a wide network

Autonomy in role

Operational support from a passionate team

Qualifications

• Expert with the modern backend LLM stack including APIs and prompt engineering.
• Experience building and optimising AI-first products.
• Strong bias to ship and iterate quickly.

Responsibilities

• Optimize and unify AI features in the ecosystem.
• Prototype AI features and observe impact.
• Work across Python and Next.js.

Skills

Backend LLM stack expertise

AI-assisted engineering

Experience with voice AI products

Fast iteration and shipping

B2C product thinking

Tools

FastAPI

Python

Next.js

AWS

Job description

Founding AI Engineer (Pre-Seed DTC Fintech)

Company: Founders Factory

Location: London

Salary: £5,000 per month

Type: Permanent, Full-time

Posted: 19 hours ago

What you'll work on:

• Get deep into AI optimisation, improving and unifying our ecosystem of AI features.
• Ship new prototype AI features fast & observe impact & iterate/polish.
• Sit across Python and Next.js, comfortable spinning up simple frontends for your complex backends.

Who we're looking for:

• Expert with the modern backend LLM stack - APIs, RAG, agents, evals, prompt engineering, context management, AI-assisted engineering.
• Have experience building and optimising agentic LLM-first products. Big plus if you've built voice AI products before.
• Strong bias to ship and iterate quickly, trusting your own judgement of what 'good' looks like. You'll commit on day one.. and then every day after that.
• Excited about B2C - reach a large number of people, operate with added uncertainty, think deeply about the right level of data fidelity to make product decisions.

Our stack:

FastAPI, Python (AI), LiveKit, NextJS + TS, Vercel AI SDK, AWS

What you'll get:

• We have a £5k/month budget. You'll start off for the first few months and thereafter:
• As part of the founding team, you'll get a significant equity position in the business.
• We don\'t need to worry about fundraising early on, but after our next rounds we'll have a bit more to play with for salaries.
• Autonomy to build & scale the product as YOU best see fit.
• Hands-on operational support from a team of smart and passionate people from Founders Factory.
• Unparalleled access to FF partners and wider network (for life!).
• A unique opportunity to build the next generational defining fintech that will scale.

If you like the sound of this unique opportunity, feel free to get in touch with the founder & CEO Dima or apply!