Senior Full-Stack Engineer — AI Startup (London, 4 Days)

Infused Solutions Ltd; Greater London; On-site; GBP 120,000 - 150,000; Full time

Benefits offered by this job

London-based

4 days per week in the office

Direct exposure to founding team

Significant influence over technical方向

Job summary

Infused Solutions Ltd in London is seeking a Senior Full-Stack Engineer to join an early-stage AI startup building an agentic platform for institutional finance. You'll contribute across the stack and own features end-to-end.

You will work closely with founders, shape product and technical direction, and influence architecture while delivering production-grade software using TypeScript, Node.js and React.

This is a permanent role with London-based office 4 days per week.

Qualifications

• 8+ years' commercial software engineering experience.
• Strong full-stack development experience with no significant frontend or backend bias.
• Regular use of modern AI coding/development tools, such as Claude Code, Cursor or similar.

Responsibilities

• Build and deliver end-to-end product functionality across the full stack.
• Develop and maintain high-quality production software.
• Work across backend, frontend, database and API development.
• Contribute to technical architecture and engineering decisions.
• Take ownership of features from concept through to production.
• Work closely with founders and engineering leadership to shape the product roadmap.
• Help establish strong engineering standards as the team grows.
• Use modern AI-assisted development tools to accelerate development and productivity.
• Troubleshoot, maintain and continuously improve production systems.
• Contribute to the development of AI-powered and agentic solutions.

Skills

TypeScript

React

Node.js

AI tools

Architecture

APIs

Cloud platforms

Git

Tools

Docker

CI/CD

AWS

GCP

Vertex AI

REST APIs

Git

Job description

Infused Solutions Ltd in London is seeking a Senior Full-Stack Engineer to join an early-stage AI startup building an agentic platform for institutional finance. You'll contribute across the stack and own features end-to-end.

You will work closely with founders, shape product and technical direction, and influence architecture while delivering production-grade software using TypeScript, Node.js and React.

This is a permanent role with London-based office 4 days per week.