Senior AI Engineer | Production AI | Python | LLMs

G3D; Greater London; Hybrid; GBP 90,000 - 115,000; Full time

Benefits offered by this job

Equity

Strong Benefits

Hybrid working (London)

Job summary

G3D in London is seeking a Senior Applied AI Engineer to take AI capabilities from prototype to production. You will design production AI systems and lead evaluation and benchmarking.

You will own technical direction, work with software engineers and build an AI platform that handles real-world data and challenging problems. You will collaborate closely with the engineering team, influence AI workflows, and contribute to high ownership levels and technical leadership.

Qualifications

• Experience shipping AI-powered products into production.
• Experience shaping AI engineering standards and workflows.
• Proven ability to work with LLMs, evaluation methods and production code.

Responsibilities

• Designing and building production AI systems.
• Creating AI evaluation and benchmarking frameworks.
• Prompt orchestration and workflow design.
• Fine-tuning models for specific use cases.
• Integrating LLMs into production software.
• Working with real-world datasets.
• Collaborating with software engineers to deliver production-ready AI features.
• Helping establish AI engineering standards, tooling and best practices.

Skills

Shipping AI-powered products into prod

Job description

Objective: Build AI that solves real-world operational problems.

About:

We are a very innovative technology company looking to hire our first Senior Applied AI Engineer to help shape and productionise the next generation of AI-powered decision support systems.

This isn't another role building chatbots or internal knowledge-base assistants. Instead, you'll be working on AI systems that combine Large Language Models, simulation, live operational data and complex reasoning to help users evaluate multiple courses of action and make better decisions in challenging real-world environments. Joining at this stage offers a rare opportunity to help define how AI is engineered across the business.

The Opportunity

• As the company's first senior AI specialist, you'll play a key role in taking AI capabilities from prototype to production.
• You’ll help shape technical direction, engineering standards, evaluation methodologies and AI workflows while working alongside an experienced software engineering team building a genuinely innovative platform.
• If you enjoy solving difficult engineering problems, experimenting with new technologies and building things properly rather than simply wrapping APIs, this is the type of role that doesn't come along very often.

What You’ll Be Doing

• Designing and building production AI systems
• Creating AI evaluation and benchmarking frameworks
• Prompt orchestration and workflow design
• Fine-tuning models for specific use cases
• Integrating LLMs into production software
• Working with complex, real-world datasets
• Collaborating closely with software engineers to deliver production-ready AI features
• Helping establish AI engineering standards, tooling and best practices

What We’re Looking For

You’ll have strong commercial experience with many of the following:

• Shipping AI-powered products into production

You’ll also enjoy working in an environment where you’ll have genuine ownership, influence technical direction and help build an AI capability from the ground up.

Nice To Have

• Optimisation or planning systems

Package

• £90,000 - £115,000 salary (possible higher for someone exceptional)
• Equity & Strong Benefits
• Hybrid working (London)
• Opportunity to build the company's AI capability from the ground up
• Work on technically challenging, real-world AI problems
• High levels of ownership and technical influence

If you’re an experienced Applied AI Engineer looking for something more challenging than another chatbot project, we’d be delighted to talk to you.