Find your next tech and IT Job or contract Embedding

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. If you are an experienced AI Developer and would like to learn more about this opportunity, I'd be delighted to arrange a brief call to discuss the role in more detail. 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.

At CGI, we are transforming how organisations deliver secure, scalable digital services, and our DevSecOps Engineers are at the heart of that change. In this role, you will design and operate resilient cloud platforms that power critical systems, embedding security and automation into every stage of the lifecycle. We combine deep engineering expertise with a culture of collaboration and accountability, enabling you to shape DevOps and SRE best practice while driving measurable impact for our clients. Here, your ideas are valued, your ownership makes a difference, and your growth is supported as you help us deliver innovative, high-value solutions across modern cloud environments. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK 'Best Employer' by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you'll be part of an open, friendly community of experts. We'll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance.

At CGI, we are transforming how organisations deliver secure, scalable digital services, and our DevSecOps Engineers are at the heart of that change. In this role, you will design and operate resilient cloud platforms that power critical systems, embedding security and automation into every stage of the lifecycle. We combine deep engineering expertise with a culture of collaboration and accountability, enabling you to shape DevOps and SRE best practice while driving measurable impact for our clients. Here, your ideas are valued, your ownership makes a difference, and your growth is supported as you help us deliver innovative, high-value solutions across modern cloud environments. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK 'Best Employer' by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you'll be part of an open, friendly community of experts. We'll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance.

At CGI, you will play a key role in safeguarding the quality and reliability of critical enterprise platforms that support some of the UK's most important programmes. As a Tester, you will help ensure systems perform as intended, meet user needs, and deliver measurable value. Working directly on client site in Corsham, you will be trusted to take ownership of testing activities, collaborate closely with Agile delivery teams, and continuously improve how quality is embedded across the delivery lifecycle. With the support of a collaborative, expert community, you will be empowered to apply your experience, shape best practice, and make a meaningful impact in a secure and mission-focused environment. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK 'Best Employer' by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you'll be part of an open, friendly community of experts. We'll train and support you in taking your career wherever you want it to go. Please note this role is based full time on client site near Chippenham. Due to the secure nature of the programme, you will need to hold DV or HLC clearance. Candidates with SC clearance who are willing to progress to HLC/DV will also be considered.

Dans le cadre d'un projet stratégique au sein d'un acteur majeur du secteur des paiements, nous recherchons un Senior Python Engineer spécialisé en Intelligence Artificielle Générative (LLM). Vous interviendrez au sein d'une équipe dédiée au développement d'une plateforme IA générative en environnement on-premise. Le rôle est fortement orienté développement logiciel et architecture applicative : nous recherchons un profil capable de concevoir, développer et industrialiser des applications IA en production. Vos principales responsabilités : Concevoir et développer des applications backend Python intégrant des modèles de langage (LLM). Développer des APIs robustes avec FastAPI (ou frameworks équivalents). Concevoir des architectures RAG (Retrieval-Augmented Generation) performantes. Mettre en œuvre les mécanismes d'ingestion documentaire, chunking, embeddings et recherche sémantique. Intégrer et orchestrer différents modèles LLM (GPT, Mistral, Claude ou équivalents). Développer des composants exploitables en production avec une approche qualité logicielle. Participer aux choix d'architecture technique et aux bonnes pratiques de développement. Mettre en place les pratiques de qualité : tests, revue de code, Clean Code, documentation technique. Compétences attendues Techniques Python confirmé (développement applicatif backend) FastAPI / Flask / Django Développement d'API REST Architecture backend et microservices LLM : GPT, Mistral, Claude, OpenAI API, Anthropic API RAG (Retrieval-Augmented Generation) LangChain, LlamaIndex ou frameworks équivalents Embeddings et recherche sémantique Bases vectorielles : Qdrant, Pinecone, Weaviate, Chroma ou équivalent PostgreSQL / bases de données relationnelles Docker CI/CD Tests automatisés Git et pratiques de revue de code Savoir-être Esprit d'analyse et capacité à résoudre des problématiques complexes Autonomie et force de proposition Sens de la qualité logicielle Capacité à travailler dans un environnement exigeant Bon relationnel avec les équipes techniques et métiers Curiosité technologique et veille active sur les évolutions IA

At CGI, we're building a Forward Deployed Engineering practice to turn complex customer challenges into working technology and measurable outcomes faster. As a Senior Forward Deployed Engineer, you'll work directly with customers to uncover the problems that matter, shape the right response and remain hands-on as ideas move from concept to production. Spanning software, AI, data, cloud and platforms, you'll have ownership of meaningful engineering challenges and the freedom to experiment intelligently, balancing innovation with security, governance and human judgement. Embedded within collaborative delivery pods, you'll work alongside specialists who share expertise and support your growth, while helping CGI establish reusable approaches and a new engineering capability that strengthens how we deliver technology-led transformation. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK 'Best Employer' by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you'll be part of an open, friendly community of experts. We'll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. This is a hybrid position.

Vous intégrerez l'équipe Transformation, Data & Innovation. L'équipe conçoit des solutions Data et Intelligence Artificielle permettant d'améliorer la connaissance client, l'efficacité opérationnelle et la performance commerciale : analyse automatisée de l'actualité, détection d'insights, recommandations, prédictions et pilotage de la performance. Missions principalesConcevoir et développer des solutions de Machine Learning, NLP et Deep Learning. Développer des applications basées sur l'IA générative et l'IA agentique. Concevoir des architectures RAG et des systèmes multi-agents avec LangGraph. Intégrer et exploiter des modèles LLM, RLM et SLM. Mettre en œuvre des techniques NLP : embeddings, Transformers, BERT, NER et recherche sémantique. Développer des modèles de régression, classification, clustering, détection d'anomalies, recommandation et séries temporelles. Réaliser l'adaptation et l'optimisation des modèles via le transfer learning et le fine-tuning. Construire et interroger des bases vectorielles et des moteurs d'indexation tels qu'Elasticsearch et FAISS. Évaluer, superviser et améliorer les performances des solutions RAG et agentiques. Industrialiser les modèles et assurer leur suivi avec Dataiku et MLflow. Développer des prototypes et interfaces de démonstration avec Gradio ou Streamlit. Participer à la mise en place de solutions d'IA responsables, explicables et maîtrisant les risques de biais. Collaborer avec les équipes métiers afin de traduire leurs besoins en solutions Data et IA concrètes. Assurer une veille technologique et proposer des cas d'usage innovants.

At CGI, you'll help organisations protect critical systems, embed Secure by Design principles and strengthen resilience against an evolving cyber threat landscape. As a Cyber Security Consultant, you'll take ownership of meaningful security challenges, bringing fresh thinking to projects that support government, defence and other critical sectors. Working alongside an established community of cyber experts, you'll assess risk across business, technology and operations, embedding security throughout the solution lifecycle rather than treating it as an afterthought. You'll help clients translate complex challenges into practical, proportionate solutions, with the freedom to contribute ideas and shape outcomes while being supported by collaborative teams, shared expertise and opportunities to develop your career within one of the UK's largest cyber consultancies. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK 'Best Employer' by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you'll be part of an open, friendly community of experts. We'll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. Location and working pattern: This role requires you to work on the client site in Basingstoke five days per week.

Dans le cadre d'un projet stratégique pour l'un de nos clients grands comptes, nous recherchons un(e) Développeur(se) confirmé(e) spécialisé(e) en IA Générative et architectures LLM. L'objectif de la mission est de concevoir, développer et industrialiser une plateforme d'IA générative dédiée à l'analyse documentaire, en s'appuyant sur des architectures modernes de type LLM open source, RAG et systèmes multi-agents. La mission couvre l'ensemble du cycle de vie : du cadrage technique à l'intégration en production au sein d'un Système d'Information complexe et sécurisé. Les missions: Back-end & InfrastructureConception et développement de l'architecture serveur Développement Python / FastAPI Développement et sécurisation d'API REST Gestion des bases de données, API et performance serveur Docker, déploiement et industrialisation des composants IA Gestion des donnéesMise en place de pipelines ETL automatisés (collecte, nettoyage, transformation) Intégration de bases de données SQL / NoSQL Traitements asynchrones à grande échelle Intégration & Modélisation IAIntégration de modèles LLM open source (via Hugging Face ou API) Mise en œuvre de pipelines RAG, embeddings et vector stores Prompt engineering et optimisation des chaînes d'inférence Intégration dans des applications métier existantes Optimisation & PerformanceMonitoring, logs et gestion de la latence Optimisation GPU/CPU, mise en cache, compression Réduction des coûts d'infrastructure cloud/on-premise Collaboration & PilotageTraduction des besoins métiers en solutions techniques Participation active aux ateliers avec les parties prenantes Contribution à la gestion des risques et au planning projet

Envie d'un nouveau challenge... CELAD vous attend ! Nous poursuivons notre développement et recherchons actuellement un(e) Ingénieur Logiciel Embarqué C – Linux / Réseaux H/F pour intervenir chez un de nos clients. Contexte : Vous rejoindrez une équipe R&D dédiée au développement de logiciels embarqués dans le domaine des systèmes de transport et des télécommunications. Au sein d'une équipe Agile pluridisciplinaire, vous participerez au développement de solutions embarquées complexes, en interaction étroite avec les équipes Hardware, Software et Test. Vous interviendrez sur des sujets mêlant développement bas niveau, Embedded Linux et réseaux, avec un fort enjeu autour de la fiabilité, de la performance et de la sécurité des systèmes. Votre mission : Au sein d'une équipe projet, vous serez en charge de : - Participer à la spécification détaillée des User Stories et à la définition des tâches de développement - Concevoir, développer, valider et documenter des logiciels embarqués en C - Contribuer à l'évolution de l'architecture réseau des équipements et systèmes - Investiguer, analyser, corriger et documenter les anomalies rencontrées - Participer aux études de faisabilité et à la définition de solutions techniques - Contribuer à l'amélioration continue du produit, des méthodes et des processus de développement