Lead full stack engineer (ai/agentic) Work, Jobs in London, Eng (with Salaries)

AI Large Language Model (LLM) Technology Architect
Accenture —London
- Full-time
- Master's degree
- Bachelor's degree
- Machine learning
Lead Software Engineer
Ravio —London
- £110,000 - £150,000 a year
- Full-time
- Hybrid work
- Master's degree
- SQL
- APIs
- Annual leave
Senior AI Engineer
Fractional Talent —London
- Hybrid work
- Master's degree
- APIs
- AI
Quick apply
11d
Senior Solutions Architect - Growth Analytics
Viasat —London
- Sales
- Master's degree
- SQL
23h
Senior Solutions Architect - Growth Analytics
Viasat, Inc. —London
- Full-time
- Sales
- Master's degree
- SQL
22h
Cloud Advisory Architecture Associate Manager
Accenture —London
- Full-time
- Azure
- AWS
- APIs
AGBG Mid Market Sales Engineer - UK
Accenture —London
- Full-time
- Azure
- Computer Science
- Engineering
Senior Fullstack Engineer
OAG Aviation Worldwide —London
- Remote
- IT
- AI
Sr Lead Software Engineer CFS CEA UK
JPMorganChase —London
- Full-time
- Azure
- DevOps
- Java
Technical Architecture Manager
Accenture —London
- Full-time
- Azure
- AWS
- APIs
1d
Account Executive, NeoCloud
MinIO —London
- Remote
- Sales
- AI
6d
Engineering Manager - Analytics House
DoiT —London
- Full-time
- Remote
- Bar
- Azure
- SQL
- Flexible schedule
Quick apply
1d
Site Reliability Engineering Manager (Data Infra)
ComplyAdvantage —London
- Hybrid work
- AWS
- APIs
- Communication skills
- Annual leave
- Life insurance
Quick apply
Senior Data Practice Lead
YLD —London
- Full-time
- Remote
- SQL
- Presentation skills
- IT
- Referral programme
Quick apply
4d
Commercial Account Executive, UKI
Glean Technologies —London
- Hybrid work
- Sales
- Master's degree
- APIs
Tech Lead - Core Infrastructure
Build Technologies —London
- £170,000 - £245,000 a year
- Full-time
Quick apply
Forward Deployed AI Engineer
Convatec —London
- Full-time
- Hybrid work
- Azure
- Computer Science
- Salesforce
AI & Agentic Technical Delivery Lead
Accenture —London
- Full-time
- Azure
- Computer Science
- Engineering
- Employee assistance programme
5d
Senior Full-Stack & Autonomous AI Systems Engineer
Zilliqa Technology —London
- Up to £65,000 a year
- Hybrid work
- In-person
- AI
- Python
Quick apply
8d
Forward Deployed Engineer - Defence
C3 AI —London
- Doctoral degree
- Engineering
- Master's degree

I want to receive the latest job alerts for lead full stack engineer (ai/agentic) in london, eng

By signing in to your account, you agree to SimplyHired's Terms of Service and consent to our Cookie and Privacy Policy.

Explore jobs in more locations

lead full stack engineer (ai/agentic) jobs near london, eng

AI Large Language Model (LLM) Technology Architect

Accenture -
London

Apply Now

Job details

Full-time

Qualifications

Law
Master's degree
Bachelor's degree
Machine learning
Deep learning
Natural language processing
AI
Python

Full job description

AI Large Language Model (LLM) Technology Architect

Career Level: Associate Manager / Specialist

Location: London

YOU ARE

As a hands-on AI/LLM Architect, you will be at the heart of designing and building advanced AI systems that power the modern enterprise. This is a deeply technical, hands-on — you will spend the majority of your time in the architecture and engineering of real-world AI solutions across classical machine learning, generative AI, and agentic systems, delivering these within active client engagements.

You will translate requirements into concrete architecture decisions: selecting design patterns, evaluating and benchmarking technical frameworks, assembling reusable components, and making deliberate technology choices that balance innovation with enterprise-grade reliability. You will design and build AI agent architectures — including multi-agent orchestration, tool use, skills use, and memory systems — and work hands-on with foundation models through fine-tuning, retrieval-augmented generation (RAG), and custom model integration. A part of your work will also involve engineering the AI context layer that makes these systems intelligent in practice — connecting enterprise knowledge bases, structured and unstructured data sources, and domain-specific content so that AI outputs are grounded, accurate, and relevant to the client's business. You will design and validate systems against enterprise non-functional requirements across security, observability, governance, performance, and scalability. A core output of this is the production of tangible engineering and architecture deliverables. This means writing and owning software components — building, integrating, and testing AI system modules as a practitioner — alongside producing detailed architecture artifacts including architecture decision records (ADRs), component diagrams, data flow diagrams, and integration specifications that guide and enable broader engineering teams.

You will work with cross-functional delivery teams alongside data engineers, ML engineers, and application developers, and this is an opportunity to develop deep expertise across the full AI architecture stack, sharpen your engineering instincts on complex, real-world problems, and build a foundation for growing into a lead or principal architect over time.

THE WORK

Independently design, build, and deliver software components across the AI architecture — owning them end to end from design through implementation, integration, and testing as a hands-on practitioner

Design and build AI agent architectures — including individual agents, their prompts, tools, and skills, multi-agent orchestration, and memory systems — making deliberate design pattern and technology choices

Design and implement agent orchestration patterns that handle task handoffs, communication, state management, and error recovery, validating them through hands-on prototyping

Evaluate multiple design options and technical approaches, making deliberate, justified design choices that balance capability, cost efficiency, performance, and enterprise-grade reliability

Design, build, and run evaluation strategies and harnesses that measure agent and system quality on metrics such as accuracy, relevance, and faithfulness, translating findings into design improvements

Architect and implement foundation model integrations — selecting the right models, invocation patterns, and customization approaches (fine-tuning, RAG, custom integration) based on capability, cost, and performance trade-offs

Design and build model adaptation and fine-tuning pipelines, applying working knowledge of transformer-based architectures to inform model selection and optimization

Design and build the AI context layer — including context graph design and ingestion pipelines that parse, chunk, enrich, and index structured and unstructured enterprise content, and the retrieval components that ground AI outputs in the client's knowledge

Build embedding, vector storage, and retrieval (semantic, hybrid, reranking) into end-to-end RAG pipelines, applying integration patterns that connect to enterprise data sources

Design and implement context assembly and memory components that manage prompts, context windows, and conversational state for grounded, accurate outputs

Identify, design, and build reusable components and solution patterns that accelerate delivery and can be templated across engagements

Design for cost efficiency and performance — optimizing model usage, inference patterns, caching, and resource utilization to meet target latency, throughput, and cost objectives

Design, build, and validate systems against enterprise non-functional requirements — implementing guardrails, prompt-injection defenses, PII handling, and access controls for security and Responsible AI

Build governance controls including versioning, audit logging, and lineage tracking, and produce the model documentation that keeps systems auditable

Build observability into systems — logging, tracing, monitoring, alerting, and cost tracking — to ensure AI solutions remain healthy, performant, and scalable in production

Produce detailed architecture artifacts — including architecture decision records (ADRs), architecture blueprints, design documents, agent orchestration and integration pattern specifications, component and data flow diagrams — that guide and enable broader engineering teams

Continuously learn, evaluate, and apply new design patterns, frameworks, and technologies across the fast-evolving AI landscape, balancing innovation with enterprise-grade reliability

Collaborate with cross-functional delivery teams — data engineers, ML engineers, and application developers — to translate requirements into concrete architecture decisions that meet stakeholder needs

EDUCATION

Bachelor's Degree or equivalent

BASIC (REQUIRED) QUALIFICATION

Proven experience in designing & deploying enterprise grade advanced ai solutions using agentic, generative and classical AI/ML using at least one cloud vendor.

Practical experience in the Agentic, LLM and Generative AI space.

Well versed in coding using python

Solid foundation in architecting and operationalizing LLM driven application architecture patterns.

Professional working experience in coding engineering, machine learning, deep learning and NLP solutions and applications.

Several years of hands on experience as a machine learning architect in the industry designing big data, machine learning. large scale analytical engineering solutions.

Apply Now

Refine Your Search

lead full stack engineer (ai/agentic) jobs in london, eng

AI Large Language Model (LLM) Technology Architect

Lead Software Engineer

Senior AI Engineer

Senior Solutions Architect - Growth Analytics

Senior Solutions Architect - Growth Analytics

Cloud Advisory Architecture Associate Manager

AGBG Mid Market Sales Engineer - UK

Senior Fullstack Engineer

Sr Lead Software Engineer CFS CEA UK

Technical Architecture Manager

Account Executive, NeoCloud

Engineering Manager - Analytics House

Site Reliability Engineering Manager (Data Infra)

Senior Data Practice Lead

Commercial Account Executive, UKI

Tech Lead - Core Infrastructure

Forward Deployed AI Engineer

AI & Agentic Technical Delivery Lead

Senior Full-Stack & Autonomous AI Systems Engineer

Forward Deployed Engineer - Defence

I want to receive the latest job alerts for lead full stack engineer (ai/agentic) in london, eng

Related Searches

Explore jobs in more locations

Jobseeker tools

Employer Tools

Browse

Stay Connected