AI Developer

Free-Work UK; City of Westminster; Hybrid; GBP 101,000 - 175,000; Full time

Job summary

LA International is recruiting AI Developers to join a major enterprise AI programme in London on a hybrid, 12-month contract. You will design, develop, and integrate AI-powered applications, working with architects and engineers to deliver scalable solutions.

Opportunities include backend AI services and frontend interfaces, with emphasis on secure, scalable, and user-centric design using LLMs, RAG, and vector databases in an AWS cloud environment.

Qualifications

• Experience designing and developing AI-enabled applications using modern frameworks and technologies.
• Strong understanding of LLM integration and prompt engineering techniques.
• Experience designing and implementing RAG-based solutions.
• Knowledge of vector databases, embeddings, and tokenisation concepts.

Responsibilities

• Design, develop, and integrate AI-powered applications and services.
• Collaborate with architects, engineers & business stakeholders to deliver innovative solutions.
• Contribute to backend AI services, frontend interfaces, or both as needed.
• Work in an agile, multidisciplinary team to deliver business value.

Skills

Python

LLM Integration

Prompt Engineering

RAG Architectures

Vector Databases

Embeddings & Tokenisation

AWS Services

Git / Version Control

REST APIs

Authentication & Authorization & Fire–

API Gateway

Tools

AWS Services

Git / Version Control

REST APIs

API Gateway

Authentication & Authorization

Firewalls

Job description

Job title: AI Developer (Backend & Frontend)

Location: London (Hybrid, Minimum 2 Days Onsite per Week)

Contract Length: 12 Months

IR35 Status: Inside IR35

Rate: Negotiable

We are currently recruiting for multiple AI Developer opportunities to support a major enterprise AI programme. These roles offer the chance to work at the forefront of AI innovation, developing intelligent applications and solutions that leverage the latest advancements in Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), and modern cloud technologies.

We are seeking both Backend AI Developers and Frontend AI Developers who are passionate about building scalable, secure, and user-focused AI solutions within a collaborative delivery environment.

The Role

As an AI Developer, you will play a key role in designing, developing, and integrating AI-powered applications and services. You will work closely with architects, engineers, and business stakeholders to deliver innovative solutions that drive business value and enhance user experiences.

Depending on your specialism, you will contribute to backend AI services, frontend user interfaces, or a combination of both.

Essential Skills & Experience

• Python
• LLM Integration
• Prompt Engineering
• RAG Architectures
• Vector Databases
• Embeddings & Tokenisation
• AWS Services
• Git / Version Control
• REST APIs
• Authentication, Authorisation, Firewalls & API Gateway

Frontend Experience (For Frontend Developers)

• React or Other Modern Web Frameworks
• TypeScript
• UX Implementation
• API Integration

Desirable Skills

• MCP (Model Context Protocol)
• IBM watsonx Orchestrate
• CI/CD Pipelines

What We're Looking For

• Experience developing AI-enabled applications using modern frameworks and technologies.
• Strong understanding of LLM integration and prompt engineering techniques.
• Experience designing and implementing RAG-based solutions.
• Knowledge of vector databases, embeddings, and tokenisation concepts.
• Experience working with cloud platforms, particularly AWS.
• Strong API development and integration skills.
• Understanding of secure application design, authentication, authorisation, and API gateways.
• Ability to work effectively within agile, multidisciplinary teams.

Why Apply?

• Join a high-profile AI transformation programme.
• Work with cutting-edge AI technologies and frameworks.
• Collaborate with industry-leading technical teams.
• Contribute to the development of innovative enterprise AI solutions.
• Long-term contract opportunity with flexible hybrid working arrangements.

LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance. A multiple award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over consecutive years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience. Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.