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# Backend Engineer - AI Native

- **Company:** LinuxRecruit
- **Location:** London, UK
- **Experience:** Experienced
- **Salary:** £80,000.0 - £150,000.0
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Big Data, Databases, Distributed Systems, PostgreSQL, Performance Tuning, Queueing Systems, Workflow Management Systems, AI Infrastructure, ReactJS, Large Language Models, Reliability of Systems, Backend, Kotlin, Webpack, Front End Software Development
- **Published:** October 13, 2026
- **Apply:** https://www.linuxrecruit.co.uk/job/backend-engineer---ai-native

## About the Role

* 3+ years of experience in backend engineering, with exposure to infrastructure or platform engineering.
 * Strong software engineering fundamentals and an ability to design scalable, production ready systems.
 * Experience with distributed architectures, PostgreSQL, queueing systems and large scale data processing.
 * A solid understanding of performance optimisation, benchmarking and system reliability.
 * An interest in, or experience with, LLM infrastructure and AI native technology.
 * The confidence to take ownership across APIs, infrastructure, databases and backend services.
 * A pragmatic approach to engineering, with the ability to balance technical excellence with getting things built.

Don't tick every box? That's not a dealbreaker.

## Description

* Engineering for serious scale: Building robust, high performance backend infrastructure capable of supporting demanding enterprise workloads.
 * Powering AI at enterprise level: Tackling the challenges of high volume LLM processing, token throughput, real time operations and AI provider reliability.
 * Creating the foundations for faster innovation: Developing shared services, abstractions and internal tools that enable engineering teams to move quickly.
 * Solving complex distributed systems challenges: Working across databases, job orchestration, asynchronous processing and infrastructure reliability.
 * Shaping technical architecture: Making important decisions around scalability, observability, authentication, system performance and resilience.
 * Raising the engineering bar: Helping establish strong engineering practices and building technology designed to perform from day one.

Think you've got what it takes?

They're looking for engineers who are naturally curious, technically ambitious and genuinely excited by the prospect of building something from the ground up.

People who don't just identify problems, but take ownership of solving them., This company values engineering ability, intellectual curiosity and the willingness to tackle unfamiliar challenges over experience with a particular set of technologies. You'll be working with a modern engineering stack built to support complex AI applications at enterprise scale.

 * Backend: Kotlin and the wider Java ecosystem
 * Frontend: React, Vite and TanStack
 * Workflow orchestration: Temporal
 * LLM routing: Portkey
 * AI infrastructure: A purpose built LLM harness combining agent autonomy with enterprise grade governance, security and control