Senior Machine Learning Engineer - London

ASOS; Greater London; On-site; GBP 61,000 - 101,000; Full time

Benefits offered by this job

Employee discount

Employee sample sales

25 days paid annual leave

Discretionary bonus scheme

Private medical care

Flexible benefits allowance

Personalised learning opportunities

Job summary

ASOS is seeking a Senior Machine Learning Engineer to join the Outfits Discovery team in our Search & Discovery organisation. The role focuses on designing and operating ML systems powering outfit discovery and personalised fashion experiences for millions of customers.

You will collaborate with ML Scientists to deploy deep learning models, optimise both batch and real-time serving, and contribute to shared ML capabilities across teams.

Qualifications

• Experience designing, building and deploying ML systems in production.
• Strong ML engineering principles and modern software practices.
• Hands-on with deep learning frameworks such as PyTorch or TensorFlow.
• Experience training models with large datasets and distributed compute.
• Experience with recommendations, ranking or personalisation.
• Knowledge of MLOps including deployment, monitoring and lifecycle management.
• Experience building reliable, observable services in cloud environments.
• Ability to lead technically and mentor engineers.
• Strong collaboration and communication in cross-functional teams.
• Curiosity about emerging AI tech and generative AI in customer products.

Responsibilities

• Design, build and operate production ML systems powering outfit discovery and personalised fashion experiences.
• Partner with ML Scientists to deploy deep learning models delivering customer and business outcomes.
• Deploy and optimise batch and real-time ML models serving millions of customers.
• Contribute to recommendations, personalisation and AI-driven fashion experiences.
• Improve system performance, reliability, observability and scalability across ML lifecycle.
• Contribute to architectural decisions and engineering best practices.
• Mentor and support engineers through collaboration and knowledge sharing.
• Help strengthen technical practices across the ML team and ASOS.

Skills

ML engineering

Cloud architectures

Model deployment

MLOps

PyTorch

TensorFlow

Distributed compute

Recommendation systems

Leadership

Cross-functional collaboration

AI in fashion

Tools

PyTorch

TensorFlow

Cloud

Excel

Job description

Salary: £61,000 - 101,000 per year

Requirements

• Experience designing, building and deploying machine learning systems in production environments.
• Strong understanding of machine learning engineering principles and modern software engineering practices.
• Hands-on experience with deep learning frameworks such as PyTorch, TensorFlow or similar.
• Experience training and optimising models using large datasets and distributed compute infrastructure.
• Experience working with recommendation systems, ranking, retrieval, personalisation or related machine learning domains.
• Knowledge of MLOps practices, including model deployment, monitoring and lifecycle management.
• Experience building reliable, observable and scalable services in cloud environments.
• Comfortable providing technical leadership and mentoring other engineers.
• Strong collaboration and communication skills, with experience working in cross-functional product teams.
• Curiosity about emerging AI technologies and the practical application of LLMs and generative AI in customer-facing products.

Responsibilities

• Design, build and operate production machine learning systems that power outfit discovery and personalised fashion experiences.
• Partner with Machine Learning Scientists to deploy deep learning models and deliver meaningful customer and business outcomes.
• Deploy and optimise batch and real-time machine learning models serving millions of customers.
• Contribute to systems that power recommendations, personalisation and AI-driven fashion discovery experiences across ASOS.
• Improve system performance, reliability, observability and scalability across the machine learning lifecycle.
• Contribute to technical design decisions, architecture discussions and engineering best practices.
• Mentor and support other engineers through coaching, collaboration and knowledge sharing.
• Help strengthen technical practices across the team and the wider machine learning community at ASOS.
• Contribute to the development of shared machine learning capabilities, tools and best practices used across multiple teams.

Technologies

• AI
• Cloud
• Support
• Machine Learning
• MLOps
• PyTorch
• TensorFlow
• Excel

More

We are ASOS, the online retailer for fashion lovers around the world. We exist to give our customers the confidence to be whoever they want to be, and that goes for our people too. We want our people to be free to be their true selves without judgement and to channel their creativity into a platform used by millions. We are proud members of Inclusive Companies, are Disability Confident Committed, and have signed the Business in the Community Race at Work Charter. We placed 8th in the Inclusive Top 50 Companies Employer list. We are hiring a Senior Machine Learning Engineer to join our Outfits Discovery team within our Search & Discovery organisation, where we are building the next generation of AI-powered fashion experiences. This is a full-time, mid-senior level role in our Retail business, and we offer benefits including employee discount, employee sample sales, 25 days paid annual leave plus a celebration day, discretionary bonus scheme, private medical care, flexible benefits allowance, and personalised learning opportunities. We welcome adjustments throughout the hiring process to help you show up as your best self.

last updated 37 week of 2026