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# AI Engineer

- **Company:** Rolejd
- **Location:** Slough, UK
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** A/B Testing, Artificial Intelligence, Amazon Web Services, Data Analysis, Computer Vision, Microsoft Azure, Computer Programming, Continuous Integration, Python (Programming Language), Machine Learning, Natural Language Processing, Open Source Technology, Recommender Systems, Tensorflow, Feature Engineering, Pytorch, Large Language Models, Deep Learning, Generative AI, Containerization, Kubernetes, Information Technology, Machine Learning Operations, Docker
- **Published:** June 6, 2026
- **Apply:** https://www.apply4u.co.uk/jobs/x/38345998/

## About the Role

Minimum QualificationsBachelor's degree in Computer Science, Mathematics, Statistics, Machine Learning, or a related technical field.3+ years of hands-on experience in building and deploying machine learning models in production environments.Strong programming skills in Python, with proficiency in machine learning frameworks such as PyTorch, TensorFlow, or JAX.Solid understanding of modern machine learning techniques including deep learning, NLP, recommendation systems, or LLMs.Experience with cloud platforms (AWS, GCP, or Azure) and containerisation (Docker, Kubernetes).Experience with MLOps tooling and practices - model versioning, experiment tracking, CI/CD, A/B testing.Proactive, fast learner, and highly collaborative, with strong communication, analytical, and problem-solving skills, capable of independently identifying and resolving complex technical challenges.Effective communication skills in English.
Preferred QualificationsWork experience in large-scale e-commerce companies or high-traffic consumer-facing platforms.Experience with LLM fine-tuning, RAG architectures, or generative AI applications.Experience building multilingual or cross-market AI systems for European/global audiences.Experience with real-time inference systems, feature engineering at scale, or online learning.Publications at top-tier ML/AI conferences (NeurIPS, ICML, KDD, ACL, CVPR, etc.) or significant open-source contributions.Effective communication skills in Chinese.

## Description

Key ResponsibilitiesDesign, build, and maintain AI/ML models and pipelines for Joybuy's international platform, covering areas such as personalisation, recommendation, NLP/LLM applications, computer vision, and fraud detection.Own end-to-end machine learning lifecycle from problem formulation and data exploration to model training, evaluation, deployment, monitoring, and iteration in production.Collaborate closely with product managers, software engineers, and data teams across Europe and China to align AI capabilities with business goals and regional market needs.Research, adopt, and promote state-of-the-art AI/ML technologies and methodologies, contributing to the team's technical roadmap and architectural vision.Build and optimise machine learning infrastructure and tooling, including feature stores, model serving platforms, A/B testing frameworks, and CI/CD pipelines for machine learning.Work onsite in Green Park, London.


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