Senior Fullstack Engineer – London (Frontend & API)

Applied; Greater London; On-site; GBP 90,000 - 150,000; Full time

Job summary

Applied Intuition UK is seeking a Senior Fullstack Engineer to join our London team. You will own the design, development, and production rollout of user-facing software across interfaces, APIs, and services.

You will work with engineers spanning frontend, backend, and autonomy domains to ensure cohesive, scalable solutions. You will move between TypeScript, Go, and Python, shaping how products are built, with a strong emphasis on security and production-readiness.

Qualifications

• Bachelor's degree in computer science/related engineering field.
• 5+ years of hands-on fullstack experience shipping and supporting production web applications.
• Deep expertise in React and TypeScript, or another modern front-end framework.
• Experience with Go and Python in the stack; strong judgement on UI for data-heavy workflows.
• Experience collaborating with designers and product managers to ship customer-facing products.
• Knowledge of application security and experience with Docker and Linux-based environments.

Responsibilities

• Take new products from concept through to production at pace, owning technical and product decisions.
• Build features end to end, from the interface through the API to the underlying services and data.
• Set front-end foundations for UK products: shared components and design language compatibility.
• Decide when a new capability should stand alone or join core product offering.
• Incorporate field learnings into products across teams and roadmaps.
• Engineer security from the first commit and ensure robustness in customer environments.

Skills

React

TypeScript

Go

Python

Docker

Kubernetes

Security

Front-end architecture

Education

Bachelor's degree in computer science/related engineering field

Tools

CesiumJS

Three.js

WebGL

Job description

Applied Intuition UK is seeking a Senior Fullstack Engineer to join our London team. You will own the design, development, and production rollout of user-facing software across interfaces, APIs, and services.

You will work with engineers spanning frontend, backend, and autonomy domains to ensure cohesive, scalable solutions. You will move between TypeScript, Go, and Python, shaping how products are built, with a strong emphasis on security and production-readiness.