Senior Backend Engineer (AI-Assisted Development)

A product-led SaaS business is hiring a Senior Back End Engineer to help build and evolve its platform, with a strong focus on modern AI-assisted development workflows.

This is a hands-on role suited to someone who is already leveraging AI engineering tools day to day to improve speed, quality, and output. The environment is TypeScript / JavaScript heavy, with some legacy PHP, so you will be working across both modern and existing systems while helping move the platform forward.

Role: Senior Back End Engineer

Salary: Up to £70,000

Location: Fully remote, UK-based

What you’ll be doing:

• Building and maintaining backend APIs and services across a modern TS / JS stack
• Working alongside legacy PHP systems, helping evolve and modernise the platform
• Using AI engineering tools to accelerate development, debugging and delivery

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• Designing scalable services and clean system boundaries
• Integrating third-party APIs including AI, analytics and external services
• Collaborating closely with product and UX teams to shape features early
• Contributing to architecture decisions and technical direction

What you’ll need:

• Strong commercial backend engineering experience
• Solid experience with TypeScript and JavaScript in production environments
• Experience working with or alongside PHP systems
• Active, hands-on use of AI engineering tools such as Claude, ChatGPT or similar in your development workflow
• Strong API development skills and understanding of system design
• Experience integrating third-party services and APIs

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• Comfortable working in fast-moving product environments

What’s on offer:

• Salary up to £70,000
• Fully remote working within the UK
• Opportunity to work in an AI-forward engineering environment
• High ownership role with influence on technical direction
• A modern product environment with ongoing platform evolution

This role would suit an engineer who is already embedding AI into their development workflow and wants to work in a team where that approach is expected, not optional.