Machine Learning Engineer

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Job title: Machine Learning Engineer

Location: London, Bristol, Edinburgh

Salary: £63,000 - £72,250

Kaluza reimagines energy to bring net‑zero within everyone’s reach. The Kaluza Platform enables energy utilities to unlock the full value of a radically changing energy system and propel us to a future where renewable energy is sustainable, affordable and accessible for all. From automating and simplifying core operations including billing to creating a lower‑cost, higher‑engagement experience, to optimising energy usage across smart devices in the home, we turn tough challenges into win‑win‑win outcomes for customers, suppliers and the energy system.

You’ll be part of the centralised Kaluza ML team and wider Data community where you’ll share knowledge, support other MLEs, Analysts and Product teams. You’ll be developing optimisation, ML algorithms and GenAI solutions across Kaluza.

Data is the foundation of everything we do, and to deliver our vision we need curious, tenacious people who can turn this data into strategy and actions with their expertise. As an MLE at Kaluza, you’ll help product teams identify patterns and solve challenges with data. Projects include Forecasting, Recommenders and Help Desk ticket classification.

• Develop ML and GenAI Solutions:
  Design and implement machine learning using Python, leveraging data technologies such as Databricks, Kafka, and the AWS cloud environment. Our architecture is based on microservices, allowing for dynamic deployment of new features.
• Product ionise Algorithms:
  Deploy algorithms into production environments where they can be tested with customers and continuously improved. You’ll automate workflows, monitor performance, and maintain data science products using best practices for tooling, alerting, and version control (e.g., Git).
• Contribute to a Collaborative Data Science Culture:
  Share your knowledge and experience with the wider team. You’ll play a key role in fostering an ML / AI community that values openness, collaboration, and innovation.
• Identify Opportunities for Impact:
  Help uncover new opportunities where ML/AI can add value across our products and services. This includes asking the right questions, identifying high‑impact areas, and contributing to the broader data strategy.

• Proven experience in a real‑world ML / AI role, with strong understanding of core algorithms, data structures, and model performance evaluation.
• Proficiency in Python, including libraries such as Scikit‑learn, Pandas, Num Py, and others commonly used in the ML ecosystem.
• Hands‑on experience with GenAI APIs and tools, including deployment and integration of GenAI solutions into production systems.
• Strong analytical and problem‑solving skills, with the ability to approach complex problems methodically while keeping business impact in mind.
• Experience across the full ML lifecycle, including data preprocessing, model training, evaluation, deployment, and monitoring in production environments.
• Experience with MLOps tools and practices (e.g., MLflow, Sage Maker, Docker, CI/CD pipelines).
• Excellent communication and presentation skills, capable of clearly articulating technical results to both technical and non‑technical stakeholders, including senior leadership.
• Track record of stakeholder engagement, collaborating cross‑functionally with product, engineering, and business teams.
• Solid foundation in statistics, including techniques such as hypothesis testing, significance testing, and probability theory.
• Comfortable working in an agile environment, contributing to iterative development cycles and cross‑functional teams.
• Some experience with Scala is a plus.

We are going through a period of significant evolution which is exciting and with it brings lots of opportunity and challenging work, which is not for everyone. To be successful in this role, you will be excellent at operating in ambiguous, changing environments, balancing multiple priorities simultaneously and find enjoyment in…