Senior Software Engineer at AI-native fintech platform

Jack & Jill/External ATS; Greater London; On-site; GBP 60,000 - 80,000; Full time

Job summary

A healthtech SaaS startup in London is seeking an experienced Full Stack Software Engineer to shape their AI-native coaching platform. In this role, you will design comprehensive solutions using React and Python, collaborating with product managers to define requirements. Ideal candidates have over 5 years of experience in building consumer-facing applications, a strong interest in wellbeing technology, and are proficient in maintaining high-performance software. This position offers a unique opportunity to influence product development in a well-funded environment.

Benefits

Influence product roadmap

High-impact role

Autonomy in technical design

Qualifications

• 5+ years of experience building consumer-facing applications using React and Python or TypeScript.
• Proven ability to take ownership of complex problems and deliver maintainable, high-performance software solutions.
• Strong interest in wellbeing technology and experience with mobile development.

Responsibilities

• Design and develop comprehensive end-to-end solutions using React, Python, and Django.
• Collaborate with product managers and designers to define technical requirements.
• Monitor and maintain the smooth operation of production features.

Skills

React

Python

Django

TypeScript

React Native

Job description

Full Stack Software Engineer

Company Description: Well-funded healthtech SaaS

Job Description: You will help shape a B2B2C platform focused on stress reduction and resilience. By developing an intelligent, AI-native coach, you will integrate physiological data and behavioral science into daily user experiences. This role involves taking ownership of complex end-to-end features, making critical technical trade-offs, and driving measurable impact for global users.

Location: London, UK

Why this role is remarkable:

• Work at the intersection of AI and behavioral science to solve the global crisis of chronic stress and burnout
• Join a well-funded startup backed by top-tier VCs where you can influence the product roadmap from the ground up
• High-impact IC role with the autonomy to design sustainable, long-term technical architectures while shipping value early and often

What you will do:

• Design and develop comprehensive end-to-end solutions using React, Python, and Django across web and mobile platforms
• Collaborate with product managers and designers to define technical requirements and utilize AI tools for rapid prototyping
• Monitor and maintain the smooth operation of production features while contributing to the enhancement of team engineering practices

The ideal candidate:

• Senior-level engineer with 5+ years of experience building consumer-facing applications using React and Python or TypeScript
• Proven ability to take ownership of complex problems and deliver maintainable, high-performance software solutions within a collaborative environment
• Strong interest in wellbeing technology and experience with mobile development, specifically React Native and system architecture

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 you're 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