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Backend Engineer
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Backend Engineer | Agentic Platforms
Up to £80,000 + Benefits
London, UK | Hybrid | 3 days a week
We're partnering with a forward-thinking technology business to hire a Backend Engineer into a growing AI engineering function at the heart of a market-leading consumer platform. The business is actively embedding AI across its engineering workflows and building intelligent, autonomous systems that are shaping how millions of members interact with its product.
As a Backend Engineer, you'll play a critical role in designing, building, deploying, and monitoring AI systems that scale across the business. You'll work cross-functionally with product, data, and platform teams, with a "you build it, you run it" mindset, and a passion for AI-driven innovation that goes beyond theory into production-grade systems.
What you'll be doing:
- Designing, building, and deploying AI systems that scale to millions of users
- Collaborating cross-functionally with product, data, and platform teams to ship high-quality software on a frequent release cadence
- Owning quality through rigorous automated testing and metrics
- Evaluating and selecting the right technical solution for each task, factoring in cost and timelines
- Working hands-on with Gen AI tools and ML frameworks to build and optimise systems for performance, scalability, and reliability
- Contributing to agentic workflows, including autonomous and multi-agent architectures
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What we're looking for:
- Proficiency in Python or relevant backend technologies
- Experience with Gen AI tools (LangGraph, CrewAI, Hugging Face, OpenAI APIs, etc.) and ML frameworks such as PyTorch/TensorFlow
- Strong understanding of ML fundamentals (training, evaluation, deployment) and LLM-specific challenges (prompt engineering, latency, cost optimisation)
- Experience with cloud platforms (AWS, GCP, Azure) and infrastructure-as-code (Terraform)
- Familiarity with DevOps practices (CI/CD, Docker, K8s) and observability tools (Prometheus, Grafana, Datadog)
- Experience with distributed systems and scaling, plus multiple datastores (SQL and NoSQL)
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What's on offer:
- Up to £80,000 + Benefits
- Hybrid working from a market-leading, tech-driven business
- Genuine opportunity to shape AI adoption across a scaling product
- Work on systems used by millions of members globally
This is an exciting opportunity for a Backend Engineer to join a business where technical growth and people development carry equal weight. If this sounds like the right next move, apply now!
Due to the high volume of applications, not all applicants will receive individual feedback
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