284 AI Engineer jobs in London

AI Engineer

Own our AI models end-to-end: dataset strategy, training/fine-tuning, evaluation, optimization, and deployment to real hardware in the field. You'll turn messy real-world streams into robust, low-latency inference pipelines.

What you'll do

• Design, train, and fine-tune text/audio/vision models (e.g., DistilRoBERTa, wav2vec2, YOLO) for threat and aggression detection.
• Build reproducible training pipelines (HF/ PyTorch/ SpeechBrain), incl. PEFT/LoRA, adapters, and transfer learning.
• Optimize for real-time: quantization, pruning, ONNX/TensorRT, mixed precision, batching, caching.
• Ship models to edge & cloud with CI/CD, versioning, and rollback; instrument latency and accuracy SLAs.
• Create data pipelines: collection, labeling, augmentation/synthesis, dataset versioning (DVC).
• Collaborate with backend/infra on streaming (RTMP/TCP), Pub/Sub, autoscaling, and observability.

Must haves

• Python wizardry and strong PyTorch .
• Hands-on experience with Audio/Video AI - HuggingFace Transformers, SpeechBrain or torchaudio, one detection/pose stack (YOLO, MediaPipe).
• Production MLOps: experiment tracking, model registries, CI/CD, model monitoring.
• Comfortable with GCP, containers, and GPUs.
• Located in London or ready to relocate .

Nice to haves

• Real-time inference experience
• Streaming systems, low-latency audio (VAD/Whisper/wav2vec2), and CV pipelines.
• Security/privacy by design (PII handling, encryption, GDPR).
• Experience tuning multi-objective metrics (precision/recall trade-offs for safety-critical apps).

The deal:

• Full-time
• London-based (or ready to relocate)
• One-month probation to confirm you have what it takes
• Career-defining opportunity
• Competitive London salary + share options

A growing Microsoft Partner Consultancy are looking for a passionate AI Engineer / Consultant join their impressive team. The role is home-based, with some element of travel to client sites when required, and to company conferences and events. For this reason, they're able to consider candidates across the UK.

This role sits within their specialist AI Practice, focused on delivering cutting-edge solutions for their clients using the latest AI technologies, with a focus on Generative AI - LLMs, GPT, embeddings, multimodal models etc.

You'll work as part of an Agile team, working directly with a range of clients to understand their business needs, design appropriate AI solutions, and ensure successful deployment and integration.

This will involve designing and developing AI models and algorithms, conducting data analysis and pre-processing to prepare datasets for AI model training, and providing training and support to clients on AI tools and best practices.

This role would be really well-suited to a Data Scientist looking to take their first-step into Consultancy, or an existing Consultant who is ready for the next step in their career - being a Microsoft Partner, they are committed to supporting you through your Microsoft Certifications with a huge emphasis on personal and professional development!

Requirements:

• Strong Python scripting skills
• Strong understanding of LLMs
• Experience delivering Gen-AI projects
• Experience with Retrieval-Augmented Generation (RAG)
• Experience with Microsoft data technologies would be beneficial
• Experience with Cloud platforms - ideally Azure
• Strong communication, stakeholder management and problem-solving skills

Benefits:

• Salary of up to around 60,000 depending upon experience
• Bonus up to 10%
• Pension - 5% matched
• 25 days holiday
• Home working allowance
• Enhanced parental pay and leave
• Support towards industry certifications
• And much more!

Please Note: This is a permanent role for UK residents only. This role does not offer Sponsorship. You must have the right to work in the UK with no restrictions. Some of our roles may be subject to successful background checks including a DBS and Credit Check.

Tenth Revolution Group / Nigel Frank are the go-to recruiter for Data and AI roles in the UK, offering more opportunities across the country than any other. We're the proud sponsor and supporter of SQLBits, and the London Power BI User Group. To find out more and speak confidentially about your job search or hiring needs, please contact me directly at (url removed)

AI Engineer - Defence RAG Systems ( Security Clearance Essential )

Clearance: Active SC Essential | Sector: Defence

Role Overview

Defence client requires an SC Cleared AI Engineer to build fully on-premises RAG systems using open-source technologies. You'll develop classified AI capabilities on air-gapped infrastructure with zero external dependencies.

Key Responsibilities

- Build end-to-end RAG pipelines on isolated defence networks using open-source LLMs (Llama 3, Mistral, Qwen)

- Deploy local vector stores (Chroma, FAISS, Milvus) with sensitive document ingestion pipelines

- Host and optimise LLMs using vLLM/TGI on local GPU clusters without internet connectivity

- Implement agent orchestration using LangChain/LangGraph in completely offline environments

- Design secure document processing for classified materials with appropriate data sanitisation

- Build monitoring and evaluation systems that operate within air-gapped infrastructure

Essential Requirements

- Active SC Clearance (non-negotiable) - willingness to undergo DV if required

- Demonstrable experience deploying open-source LLMs (Llama, Mistral, Falcon) on-premises

- Expertise with local vector databases (Chroma, FAISS, Weaviate) in offline deployments

- Strong vLLM/Text Generation Inference experience for high-throughput model serving

- Proven ability to work on air-gapped systems with no external package repositories

- Experience with GPU orchestration (NVIDIA A100/H100) and CUDA optimisation

- Python expertise with offline dependency management and local package mirrors

Technical Stack (All On-Premises)

Models: Llama 3, Mistral, Qwen (locally hosted)

Vector Stores: Chroma, FAISS, Milvus

Orchestration: LangChain, LangGraph for agents

Hosting: vLLM, TGI, Ollama on bare metal/private cloud

Infrastructure: Air-gapped Kubernetes, local container registries

Desirable Skills

- Experience with defence/government IT security protocols

- Knowledge of CIS benchmarks and NCSC guidelines

- Familiarity with cross-domain solutions and data diodes

- Understanding of classification marking and handling procedures

A growing Microsoft Partner Consultancy are looking for a passionate AI Engineer / Consultant join their impressive team. The role is home-based, with some element of travel to client sites when required, and to company conferences and events. For this reason, they're able to consider candidates across the UK.

This role sits within their specialist AI Practice, focused on delivering cutting-edge solutions for their clients using the latest AI technologies, with a focus on Generative AI - LLMs, GPT, embeddings, multimodal models etc.

You'll work as part of an Agile team, working directly with a range of clients to understand their business needs, design appropriate AI solutions, and ensure successful deployment and integration.

This will involve designing and developing AI models and algorithms, conducting data analysis and pre-processing to prepare datasets for AI model training, and providing training and support to clients on AI tools and best practices.

This role would be really well-suited to a Data Scientist looking to take their first-step into Consultancy, or an existing Consultant who is ready for the next step in their career - being a Microsoft Partner, they are committed to supporting you through your Microsoft Certifications with a huge emphasis on personal and professional development!

Requirements:

• Strong Python scripting skills
• Strong understanding of LLMs
• Experience delivering Gen-AI projects
• Experience with Retrieval-Augmented Generation (RAG)
• Experience with Microsoft data technologies would be beneficial
• Experience with Cloud platforms - ideally Azure
• Strong communication, stakeholder management and problem-solving skills

Benefits:

• Salary of up to around 60,000 depending upon experience
• Bonus up to 10%
• Pension - 5% matched
• 25 days holiday
• Home working allowance
• Enhanced parental pay and leave
• Support towards industry certifications
• And much more!

Please Note: This is a permanent role for UK residents only. This role does not offer Sponsorship. You must have the right to work in the UK with no restrictions. Some of our roles may be subject to successful background checks including a DBS and Credit Check.

Tenth Revolution Group / Nigel Frank are the go-to recruiter for Data and AI roles in the UK, offering more opportunities across the country than any other. We're the proud sponsor and supporter of SQLBits, and the London Power BI User Group. To find out more and speak confidentially about your job search or hiring needs, please contact me directly at (url removed)

AI Engineer - Defence RAG Systems ( Security Clearance Essential ) On Site 2 X Days a week, Plymouth

Clearance: Active SC Essential | Sector: Defence

Role Overview

Defence client requires an SC Cleared AI Engineer to build fully on-premises RAG systems using open-source technologies. You'll develop classified AI capabilities on air-gapped infrastructure with zero external dependencies.

Key Responsibilities

- Build end-to-end RAG pipelines on isolated defence networks using open-source LLMs (Llama 3, Mistral, Qwen)

- Deploy local vector stores (Chroma, FAISS, Milvus) with sensitive document ingestion pipelines

- Host and optimise LLMs using vLLM/TGI on local GPU clusters without internet connectivity

- Implement agent orchestration using LangChain/LangGraph in completely offline environments

- Design secure document processing for classified materials with appropriate data sanitisation

- Build monitoring and evaluation systems that operate within air-gapped infrastructure

Essential Requirements

- Active SC Clearance (non-negotiable) - willingness to undergo DV if required

- Demonstrable experience deploying open-source LLMs (Llama, Mistral, Falcon) on-premises

- Expertise with local vector databases (Chroma, FAISS, Weaviate) in offline deployments

- Strong vLLM/Text Generation Inference experience for high-throughput model serving

- Proven ability to work on air-gapped systems with no external package repositories

- Experience with GPU orchestration (NVIDIA A100/H100) and CUDA optimisation

- Python expertise with offline dependency management and local package mirrors

Technical Stack (All On-Premises)

Models: Llama 3, Mistral, Qwen (locally hosted)

Vector Stores: Chroma, FAISS, Milvus

Orchestration: LangChain, LangGraph for agents

Hosting: vLLM, TGI, Ollama on bare metal/private cloud

Infrastructure: Air-gapped Kubernetes, local container registries

Desirable Skills

- Experience with defence/government IT security protocols

- Knowledge of CIS benchmarks and NCSC guidelines

- Familiarity with cross-domain solutions and data diodes

- Understanding of classification marking and handling procedures

Our client, within the financial services sector, is seeking an accomplished AI Engineer for an exciting contract role based in London. This is a unique opportunity to contribute to greenfield AI projects and collaborate with a forward-thinking team, leveraging state-of-the-art tools and platforms.

• Python (FastAPI): Proficiency in Python, particularly with the FastAPI framework, is vital to develop robust, scalable AI solutions.
• LangChain: Practical experience using LangChain to integrate and operationalize large language models.
• Google AI SDK & Azure Open AI SDK: Expertise with these SDKs to deploy and manage AI capabilities within GCP and Azure ecosystems.
• Cloud Platforms (GCP and Azure): Hands-on experience working with Google Cloud Platform and Microsoft Azure for deploying AI and cloud-based solutions.

• Contract Type: Long-term contract engagement
• Rate: Up to 900 a day (umbrella)
• Work Arrangement: London office 3 days a week

If you're ready to make an impact in the AI-driven financial services space, we want to hear from you! Apply now and take the next step in your career.

Please click here to find out more about our Key Information Documents. Please note that the documents provided contain generic information. If we are successful in finding you an assignment, you will receive a Key Information Document which will be specific to the vendor set-up you have chosen and your placement.

To find out more about Huxley, please visit (url removed)

Huxley, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC(phone number removed) England and Wales

Salary: 80,000 - 110,000 + Equity options

Location: London hybrid

We are working with a rapidly scaling business that is tackling one of the UK's most important challenges, helping organisations unlock the potential of AI while addressing the growing skills gap. Having recently undergone a strategic rebrand, the company is now entering an accelerated growth phase and requires an experienced AI professional to join their head office team. This role is a rare opportunity to combine hands-on AI engineering expertise with client consulting, solution delivery, and technical leadership. You'll play a critical role in shaping solutions for high-profile organisations across multiple sectors, while also contributing to the internal development of new AI-driven products and training programmes.

• Leading technical input in pre-sales and client-facing conversations
• Designing and delivering AI solutions across a variety of industries
• Acting as an internal consultant, applying AI to improve business processes and scale operations
• Supporting the company's AI training academy, mentoring and guiding diverse talent pipelines
• Collaborating closely with leadership, sales, delivery, and academy teams to shape innovative solutions

• Experience working in the industry delivering AI or ML solutions
• A strong technical foundation with the ability to design and deploy AI systems end-to-end
• Confidence in client-facing roles, with the ability to communicate technical concepts clearly to non-technical audiences
• Experience mentoring or coaching other engineers, and an interest in developing people
• A flexible, entrepreneurial mindset suited to a fast-growing, high-impact environment

If you are looking for a new challenge, then please submit your CV for initial screening and more details.

A growing Microsoft Partner Consultancy are looking for a passionate AI Engineer / Consultant join their impressive team. The role is home-based, with some element of travel to client sites when required, and to company conferences and events. For this reason, they're able to consider candidates across the UK.

This role sits within their specialist AI Practice, focused on delivering cutting-edge solutions for their clients using the latest AI technologies, with a focus on Generative AI - LLMs, GPT, embeddings, multimodal models etc.

You'll work as part of an Agile team, working directly with a range of clients to understand their business needs, design appropriate AI solutions, and ensure successful deployment and integration.

This will involve designing and developing AI models and algorithms, conducting data analysis and pre-processing to prepare datasets for AI model training, and providing training and support to clients on AI tools and best practices.

This role would be really well-suited to a Data Scientist looking to take their first-step into Consultancy, or an existing Consultant who is ready for the next step in their career - being a Microsoft Partner, they are committed to supporting you through your Microsoft Certifications with a huge emphasis on personal and professional development!

Requirements:

• Strong Python scripting skills
• Strong understanding of LLMs
• Experience delivering Gen-AI projects
• Experience with Retrieval-Augmented Generation (RAG)
• Experience with Microsoft data technologies would be beneficial
• Experience with Cloud platforms - ideally Azure
• Strong communication, stakeholder management and problem-solving skills

Benefits:

• Salary of up to around 60,000 depending upon experience
• Bonus up to 10%
• Pension - 5% matched
• 25 days holiday
• Home working allowance
• Enhanced parental pay and leave
• Support towards industry certifications
• And much more!

Please Note: This is a permanent role for UK residents only. This role does not offer Sponsorship. You must have the right to work in the UK with no restrictions. Some of our roles may be subject to successful background checks including a DBS and Credit Check.

Tenth Revolution Group / Nigel Frank are the go-to recruiter for Data and AI roles in the UK, offering more opportunities across the country than any other. We're the proud sponsor and supporter of SQLBits, and the London Power BI User Group. To find out more and speak confidentially about your job search or hiring needs, please contact me directly at (url removed)

A growing Microsoft Partner Consultancy are looking for a passionate AI Engineer / Consultant join their impressive team. The role is home-based, with some element of travel to client sites when required, and to company conferences and events. For this reason, they're able to consider candidates across the UK.

This role sits within their specialist AI Practice, focused on delivering cutting-edge solutions for their clients using the latest AI technologies, with a focus on Generative AI - LLMs, GPT, embeddings, multimodal models etc.

You'll work as part of an Agile team, working directly with a range of clients to understand their business needs, design appropriate AI solutions, and ensure successful deployment and integration.

This will involve designing and developing AI models and algorithms, conducting data analysis and pre-processing to prepare datasets for AI model training, and providing training and support to clients on AI tools and best practices.

This role would be really well-suited to a Data Scientist looking to take their first-step into Consultancy, or an existing Consultant who is ready for the next step in their career - being a Microsoft Partner, they are committed to supporting you through your Microsoft Certifications with a huge emphasis on personal and professional development!

Requirements:

• Strong Python scripting skills
• Strong understanding of LLMs
• Experience delivering Gen-AI projects
• Experience with Retrieval-Augmented Generation (RAG)
• Experience with Microsoft data technologies would be beneficial
• Experience with Cloud platforms - ideally Azure
• Strong communication, stakeholder management and problem-solving skills

Benefits:

• Salary of up to around 60,000 depending upon experience
• Bonus up to 10%
• Pension - 5% matched
• 25 days holiday
• Home working allowance
• Enhanced parental pay and leave
• Support towards industry certifications
• And much more!

Please Note: This is a permanent role for UK residents only. This role does not offer Sponsorship. You must have the right to work in the UK with no restrictions. Some of our roles may be subject to successful background checks including a DBS and Credit Check.

Tenth Revolution Group / Nigel Frank are the go-to recruiter for Data and AI roles in the UK, offering more opportunities across the country than any other. We're the proud sponsor and supporter of SQLBits, and the London Power BI User Group. To find out more and speak confidentially about your job search or hiring needs, please contact me directly at (url removed)