Lead Machine Learning Engineer

In this role you will own end-to-end ML projects, from experimentation to production, building scalable AI-driven systems. You will lead architecture decisions, guide a team of ML engineers, and collaborate with research and application teams to improve model performance in production. The position offers a trusted leadership path in a fast-paced, remote-friendly environment at Hexwired, shaping proactive AI-powered applications for everyday communication and collaboration.

• Remote work
• Competitive salary 200k–300k GBP/year
• Leadership opportunity
• Cross-functional collaboration
• Opportunity to work on AI-powered products

• Own ML projects from experimentation through production
• Build reliable, scalable systems using Python and LLMs
• Make architecture decisions and design ML system architecture
• Lead code reviews and set engineering standards
• Provide technical leadership, mentoring ML engineers
• Collaborate with research and application engineering teams to improve model performance in production
• Proactively solve problems in a fast-paced environment

• Strong Python programming skills and production-ready software experience
• Practical experience with LLMs and modern ML techniques
• Solid understanding of ML fundamentals, deep learning and neural networks
• Ability to write clean, maintainable code and troubleshoot complex issues
• Understanding of model reliability, performance optimisation and deployment
• Experience leading ML engineers, mentoring, and guiding technical design
• Ability to lead architectural design and ML system implementation
• Experience coordinating across research and application teams to improve production models
• Proactive approach to problem-solving in a fast-paced setting

• Proactive problem-solving
• Leadership and mentorship
• Cross-functional collaboration
• Python programming
• Large Language Models (LLMs)
• Modern ML techniques