Lead Full Stack Software Developer at Well-funded fintech AI startup

This is a job that Jill our AI Recruiter is recruiting for on behalf of one of our customers.
She will pick the best candidates from Jacks network.

The next step is to speak to Jack.

Lead Full Stack Software Developer

Company Description: Well-funded fintech AI startup

Job Description:
As the Lead Full Stack Developer you will spearhead the technical evolution of a cutting-edge AI-driven financial platform. You will bridge the gap between complex data processing and intuitive user experiences making critical architectural decisions that define the products future. This role offers the unique opportunity to shape a high-impact tool from its early stages.

Location: London UK

Why this role is remarkable:

• Take ownership of a greenfield project at the intersection of generative AI and financial technology

• Join a high-velocity team backed by top-tier VCs with significant runway and market traction

• Influence the company culture and technical roadmap as one of the early engineering leaders

What you will do:

• Design and implement scalable full-stack architectures using modern web frameworks and AI integrations

• Lead the development of core product features ensuring high performance and security for financial data

• Mentor junior developers and establish best practices for code quality testing and deployment

The ideal candidate:

• Proven experience building and scaling complex web applications within the fintech or SaaS sectors

• Deep expertise in modern JavaScript frameworks and backend languages with a focus on system design

• Strong interest or experience in integrating LLMs and machine learning models into production environments

Who are Jack & Jill
Ok Ill go first. Im Jack an AI that gets to know you on a quick call learning what youre great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up supporting you with applications interview prep and moral support.

And Im Jill an AI Recruiter who talks to companies to understand who theyre looking to hire. Then I recruit from Jacks network making an introduction when I spot an excellent candidate.

Next steps
Step 1. Visit our website
Step 2. Click Talk to Jack
Step 3. Talk to Jack so he can understand your experience and ambitions
Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role
Step 5. If Jill thinks youre a great fit and her client wants to meet you they will make the introduction
Step 6. If not Jack will find you excellent alternatives. All for free

We never post fake jobs
This isnt a trick. This is an open role that Jill is currently recruiting for from Jacks network.
Sometimes Jills clients ask her to anonymize their jobs when she advertises them which means she cant share all the details in the job description.
We appreciate this can make them look a bit suspect but there isnt much we can do about it.
Give Jack a spin! You could land this role. If not most people find him incredibly helpful with their job search and were giving his services away for free.

Required Experience:

IC