Senior Full Stack Engineer

ZipRecruiter; England; Remote; GBP 75,000 - 85,000; Full time

Job summary

A leading AI-driven SaaS startup is seeking a Senior Full Stack Engineer to develop scalable solutions and integrate AI into their platform. This fully remote role offers a competitive salary and equity, with opportunities to influence the company's direction and tackle real-world challenges.

Benefits

Competitive salary & share options

Influence over company direction

Qualifications

• Experience with LLM APIs (e.g., GPT, Claude) is advantageous.
• Senior or lead engineer with a passion for the JavaScript ecosystem.

Responsibilities

• Design, develop, and deploy scalable solutions across the stack.
• Collaborate with product managers, UX designers, and clients.
• Implement software engineering best practices.

Skills

JavaScript

Collaboration

Problem Solving

Education

STEM degree

Tools

React

TypeScript

SQL

NoSQL

CI/CD

Job description

Job Description

Senior Full Stack Engineer – (TypeScript)

£75,000- £85,000 + equity

Currently fully remote, 1-2 days a month in Manchester from September 2025

Are you an ambitious full-stack engineer looking to shape the future of AI-driven data solutions?

This is an early-stage SaaS AI startup, combining traditional Data Science, Machine Learning, and Generative AI to tackle complex data challenges for businesses of all sizes.

With early product-market fit and pre-seed secured, they are building a team to scale their platform from MVP to a market-leading solution. This is a rare opportunity to be at the forefront of AI innovation in a fast-paced, agile environment.

This role would suit a senior or lead engineer with a passion for the JavaScript ecosystem and a desire to push an AI product forward.

The Role

As a senior engineer, you’ll play a key role in developing a multitenant SaaS platform that integrates with client environments and automates operational workflows using AI.

Whilst there's no expectation for you to be an expert in AI or have worked in an AI driven startup, any experience or exposure to AI any experience using LLM APIs (e.g., GPT, Claude) in production would be a definite advantage.

What You’ll Do

• Design, develop, and deploy scalable solutions across the stack.
• Collaborate with product managers, UX designers, and clients.
• Implement software engineering best practices.
• Contribute to architecture, DevOps, and CI/CD pipelines.

Tech Stack & Must-Have Experience

• Frontend: React
• Backend: Express, TypeScript
• Databases: SQL & NoSQL
• Cloud: Serverless functions, container orchestration, API management
• Infrastructure: Declarative IaC, CI/CD pipelines

Nice to Have

• AI: Experience using LLM APIs (e.g., GPT, Claude) in production
• Education: STEM degree
• Manchester-based or able to travel every 2 weeks as a minimum

What’s in It for You?

• Competitive salary & share options
• Influence over company direction & future team building
• The chance to solve real-world challenges with cutting-edge AI

This is an opportunity to work for an AI business with some real backing that is about to make huge waves over the next few months.

They’re a small dedicated team with an AI product that has some large potential users circling.

What a great time to join!