Senior AI-First Full Stack Engineer (Python/TS) - Hybrid

TechShack; United Kingdom; Hybrid; GBP 100,000 - 130,000; Full time

Job summary

TechShack is seeking a Senior Full Stack Engineer to own end-to-end solutions in a hybrid arrangement in the United Kingdom. The role focuses on AI-first software development, guiding autonomous coding agents to deliver scalable, high-quality products.

You’ll work across backend services and modern frontend apps, shaping architecture and technical standards with stakeholders. The ideal candidate has strong Python/FastAPI and React/Next.js skills, a solid TypeScript foundation, and comfort with

Qualifications

• Proven experience building web backends with Python and FastAPI.
• Strong frontend skills with React and Next.js.
• Hands-on experience with AI-driven development processes.
• Ability to design scalable architectures and validate AI-generated code.
• Commercial awareness and problem understanding beyond tech.

Responsibilities

• Lead full-stack development across backend services and web apps.
• Utilise AI coding agents to plan, generate, review and improve code.
• Design backend with Python, FastAPI and modern APIs.
• Build frontend with TypeScript, React and Next.js.
• Ensure AI-generated code is secure and production-ready.
• Collaborate with stakeholders to translate business needs.

Skills

Python

FastAPI

React

Next.js

TypeScript

AI-first approach

Job description

TechShack is seeking a Senior Full Stack Engineer to own end-to-end solutions in a hybrid arrangement in the United Kingdom. The role focuses on AI-first software development, guiding autonomous coding agents to deliver scalable, high-quality products.

You’ll work across backend services and modern frontend apps, shaping architecture and technical standards with stakeholders. The ideal candidate has strong Python/FastAPI and React/Next.js skills, a solid TypeScript foundation, and comfort with