Founding Full Stack Engineer

W Talent; United Kingdom; Hybrid; GBP 70,000 - 100,000; Full time

Job summary

A high-impact startup in AI and law seeks a founding full-stack engineer to design and build innovative solutions. You'll work across the stack and influence product direction. Ideal candidates have 3+ years of experience in full-stack or backend development, proficiency in Python and TypeScript, and are excited to work in a high-stakes environment. The position offers a competitive salary of £70-100K and equity stakes within a hybrid work framework.

Benefits

Competitive salary

Equity stake

Fast response time

Qualifications

• 3+ years of experience in full-stack or backend development.
• Proficiency with Python, TypeScript, and modern frameworks like Next.js.
• Strong product sense and ability to work autonomously.

Responsibilities

• Work across the stack: Python backend, Next.js + TypeScript frontend.
• Architect scalable document processing pipelines for large datasets.
• Build AI-native user experiences.

Skills

Python

TypeScript

Next.js

Full-stack development

Backend development

Communication skills

Tools

PostgreSQL

Azure

GitHub Actions

Job description

Overview

About the Role

We're looking for a founding full-stack engineer to join an early-stage, high-impact startup at the intersection of AI and law. You'll be one of the first hires, owning features end-to-end—from talking to users and scoping problems to building and iterating solutions.

If you're excited to shape a product that's trusted by top-tier professionals in a high-stakes environment, and want to help define both engineering culture and technical foundations, this is for you.

Responsibilities

• Work across the stack: Python backend, Next.js + TypeScript frontend, PostgreSQL
• Architect scalable document processing pipelines for large datasets
• Build AI-native user experiences and intelligent agent workflows using state-of-the-art LLMs
• Improve system performance, stability, and observability
• Deploy to Azure using infrastructure-as-code (Bicep) and CI/CD via GitHub Actions
• Collaborate directly with users to deeply understand workflows and pain points
• Influence engineering best practices, product direction, and team growth

Qualifications

• 3+ years of experience in full-stack or backend development
• Proficiency with Python, TypeScript, and modern frameworks like Next.js
• Strong product sense and ability to work autonomously
• High attention to detail and bias for action
• Excellent communication skills
• Bonus: Experience or interest in legal tech or document-heavy domains

Why Join

• Be part of a ground-floor team shaping a next-gen AI product
• Work with real users at leading firms in a rapidly evolving industry
• Backed by YC and top-tier investors
• Own a meaningful equity stake
• Move fast, ship often, and work on genuinely hard and impactful problems

Compensation & Benefits

• £70-100K salary
• 0.50%-1.00% equity
• Hybrid working (London-based)
• Fast response time: Expect to hear back within 24h