Staff Machine Learning Engineer

Staff Machine Learning Engineer | Remote | Salary £100,000-£200,000 (flexible) |

Hexwired Recruitment has partnered with an exciting AI software company developing advanced machine learning products that solve complex, real-world problems. They're looking for a Technical Lead to bridge research and engineering, taking cutting-edge models from experimentation into robust production systems.

The Role

This is a senior hands-on leadership position where you'll own the execution of the company's machine learning platform, working closely with research, software engineering and product teams to build scalable, production-grade AI solutions.

Responsibilities

* Own the end-to-end machine learning lifecycle, including data pipelines, model training, evaluation, inference and deployment.

* Fine-tune and optimise large language models using modern techniques such as LoRA, QLoRA, supervised fine-tuning, preference optimisation and model distillation.

* Design scalable inference infrastructure with a focus on latency, reliability and operational efficiency.

* Build and maintain high-quality data pipelines for both synthetic and real-world datasets.

* Develop robust evaluation frameworks covering model quality, robustness, safety and performance.

* Optimise GPU utilisation, memory usage and inference performance for production deployments.

* Work closely with software engineers to integrate ML capabilities into backend services and customer-facing products.

* Lead technical delivery, mentor engineers and help shape engineering best practices.

* Balance research ambitions with practical engineering trade-offs to deliver value quickly.

Technology

* Python

* PyTorch and/or JAX

* Large-scale GPU training and inference infrastructure

* Modern ML deployment pipelines

Ideal Experience

* Proven experience delivering machine learning systems into production.

* Strong understanding of modern foundation models and large language models.

* Experience building scalable training and inference infrastructure.

* Excellent software engineering skills with a focus on maintainable, production-quality code.

* Comfortable leading technical delivery while remaining hands-on.

* Strong communication skills and the ability to collaborate across research, engineering and product teams.

If you are an experienced Staff Machine Learning Engineer looking for a new remote opportunity paying a market-leading salary up to £200,000. Apply today by contacting Hexwired Recruitment.

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