Senior Applied AI Engineer

Aviva; Park Central; On-site; GBP 59,000 - 73,000; Full time

Benefits offered by this job

Salary from £66K + bonus + benefits

Bonus opportunity 10%

Generous pension scheme

29 days holiday plus bank holidays

Private Medical Benefit

Employee share plan

Flexible working & volunteering days

Job summary

Aviva seeks a Senior Applied AI Engineer in the UK to lead the architecture and delivery of complex multi-agent AI systems, setting canonical patterns and governance frameworks used across the organisation.

You will build a reusable library of agent tools, drive production-grade AI initiatives, and collaborate with business, product, and Enterprise Architecture teams while ensuring regulatory alignment and safety.

Qualifications

• Extensive hands-on experience delivering LLM-powered systems at scale.

Responsibilities

• Leading the end-to-end architecture and delivery of multi-agent AI systems across customer-facing and operational domains.
• Defining and owning Aviva’s canonical engineering patterns for applied AI, including orchestration architectures and memory design.
• Building and maintaining a reusable library of agent tools and shared engineering assets.
• Establishing quality, safety and governance standards for production AI systems.
• Leading structured research programmes on emerging models and techniques.
• Providing technical leadership and mentorship to mid-level and junior engineers.
• Partnering with business, product and Enterprise Architecture teams to translate AI opportunities into scalable solutions.
• Ensuring compliance with FCA Consumer Duty, GDPR and internal AI governance standards.

Skills

Python Mastery

Agentic Architectures

Context & Retrieval

Model Fine-Tuning

Voice AI Pipelines

Evaluation & Governance

Cloud Architecture

Stakeholder Communication

Enterprise AI Delivery

Tools

AWS Strands

OpenAI Agents SDK

Google ADK

DSPy

Job description

Senior Applied AI Engineer

Birmingham, Bristol, Eastleigh, Glasgow, Leatherhead, Leeds, Liverpool, Manchester, Norwich, Perth, Sheffield, Worthing or York

Salary from £66K + bonus + excellent benefits

Build AI that matters.

AI is already making a difference across Aviva, helping colleagues and customers through areas such as claims summarisation, medical underwriting, customer service and fraud detection.

As a Senior Applied AI Engineer, you’ll operate as a technical authority within our newly formed function.

You’ll lead the end-to-end architecture and delivery of our most complex multi-agent AI systems, while establishing the canonical engineering standards, reusable capabilities and governance frameworks that define AI across the entire organisation.

Technology and AI are central to Aviva's strategy. Today, we serve over 25 million customers globally, support 7.4 million registered MyAviva users and continue to invest in the technology foundations that enable innovation at scale. With 70% of UK IT applications now cloud-based, we're creating the platform for the next phase of AI adoption across the business.

If you’re excited by solving complex technical challenges at genuine scale, leading through expertise and building production-grade AI that delivers measurable value, we would love to hear from you.

A bit about the job:

You’ll carry both a high-impact delivery mandate and an institution-building mandate: delivering agentic AI systems for complex business use cases while ensuring the tools, patterns and knowledge created are adopted at scale.

You’ll be responsible for :

• Leading the end-to-end architecture and delivery of multi-agent AI systems across customer-facing and operational domains.
• Defining and owning Aviva’s canonical engineering patterns for applied AI, including orchestration architectures, context engineering, MCP integration, memory design, fine-tuning and multimodal systems.
• Building and maintaining a reusable library of agent tools, MCP servers, skills and shared engineering assets adopted across AI delivery teams.
• Establishing quality, safety and governance standards for production AI systems, designing evaluation frameworks to manage model risk before any system is built.
• Leading structured research programmes on emerging models and techniques, translating findings into actionable delivery guidance.
• Providing technical leadership and mentorship to mid-level and junior engineers through architecture reviews, code reviews and knowledge sharing.
• Partnering with business, product and Enterprise Architecture teams to translate complex AI opportunities into commercially viable, scalable solutions.
• Ensuring compliance with FCA Consumer Duty, GDPR and internal AI governance standards, including bias detection and fairness controls.

Skills and experience we’re looking for :

You’ll bring experience in many of these areas :

• Enterprise AI Delivery: Extensive hands-on experience delivering LLM-powered systems and production AI at scale.
• Python Mastery: Expert-level Python engineering, writing and reviewing production-quality code for complex multi-agent systems.
• Agentic Architectures: Deep expertise in agent orchestration frameworks (AWS Strands, OpenAI Agents SDK, Google ADK, DSPy or raw agent loop design).
• Context & Retrieval: Advanced context engineering expertise, including multi-hop retrieval, knowledge graphs (Neptune/Nebula), structured memory injection and dynamic prompt construction.
• MCP & Tooling: Advanced knowledge of Model Context Protocol (MCP), designing and implementing server architectures for enterprise tooling integration.
• Model Fine-Tuning: Experience with model fine-tuning at scale using PEFT, (Q)LoRA, Unsloth, Axolotl or Hugging Face TRL.
• Voice AI Pipelines: Building end-to-end voice AI pipelines incorporating STT/TTS models (ElevenLabs, Deepgram, Qwen).
• Evaluation & Governance: Designing evaluation frameworks, operating quality controls in production and balancing innovation with risk, safety and regulatory alignment.
• Cloud Architecture: Strong understanding of AWS cloud architecture for AI workloads (SageMaker, Bedrock, MSK, EKS).
• Stakeholder Communication: Excellent communication skills, with the ability to present technical decisions clearly to senior business, product or regulatory stakeholders.

Why Aviva:

This is an opportunity to help build AI in a highly trusted environment, where customer outcomes, governance and responsible innovation matter.

You'll join a business with proven AI capability, significant digital reach, modern technology foundations and the ambition to scale AI across the organisation.

Whatyou’llget for this role:

Our purpose –with you today, for a better tomorrow– is a promise we make to our colleagues too. And one of the ways we bring that to life is by investing in you.

• Salary from £66K + bonus + excellent benefits (depending on location, skills,experienceand qualifications).
• Bonus opportunity10% of annual salary - Actual amount depends on your performance and Aviva’s
• Generous pension scheme: eg if you put in 8%, Aviva adds 14%
• 29 days holiday plus bank holidays, and you can choose to buy or sell up to 5 days
• Aviva-funded Private Medical Benefitto help you get expert support when you need it
• Make your money go further - Up to 40%discount on Aviva products, and other retailer discounts
• Up to £1,200 of free Aviva shares per year through ourMatching Share Planand share in the success of Aviva with ourSave As You Earnscheme
• Brilliantlysupportive policiesincluding parental and carer’s leave
• Flexible benefitsto suit you, includingsustainability optionssuch as cycle to work
• Make a difference, be part of ourAviva Communitiesand use your 3paid volunteering days to help others

We take yourwellbeingseriously with lots of support and tools

Take a lookto learn more. Put a salary into this calculator to see what your total Aviva Reward could be.

Aviva is for everyone:

We’re inclusive andwelcome everyone–we want applications from all backgrounds and experiences.

Excited but not sure you tick every box? Even if youdon’t, we would still encourage you to apply. We also consider all forms of flexible working, including part time and job shares.

We flex locations, hours and working patterns to suit our customers, business, and you. Most of our people are smart working – spending at least 50% of their time in our offices every week - combining the benefits of flexibility, with time together with colleagues.

To find out more about working at Aviva take a lookhere