Job title: Machine Learning Engineer Location: London, Bristol, EdinburghSalary: £63,000 - £81,000 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 create 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. At Kaluza we embrace a flexible, hybrid work model that balances autonomy with the power of in-person connection. Many of our teams find value in coming together regularly to collaborate, strengthen relationships, and accelerate progress. We’re focused on shaping thoughtful, team-driven approaches that support both business impact and individual well-being.We also prioritise meaningful company-wide gatherings like our annual conference and end-of-year celebrations, that bring us together to align, connect, and celebrate. Where in the world of Kaluza will I be working?You’ll be part of the centralised Kaluza ML team and wider Datacommunity where you’ll share knowledge, support other MLEs, Analysts and Product teams. You’ll be developing optimisation, ML algorithms and GenAI solutions across Kaluza. What will I be doing?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 HelpDesk ticket classification. Key responsibilities include:<ul><li>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. </li><li>Productionise 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).</li><li>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.</li><li>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.</li></ul> Ideally you will have:<ul><li>Proven experience in a real-world ML / AI role, with strong understanding of core algorithms, data structures, and model performance evaluation.</li><li>Proficiency in Python, including libraries such as Scikit-learn, Pandas, NumPy, and others commonly used in the ML ecosystem.</li><li>Hands-on experience with GenAI APIs and tools, including deployment and integration of GenAI solutions into production systems.</li><li>Strong analytical and problem-solving skills, with the ability to approach complex problems methodically while keeping business impact in mind.</li><li>Experience across the full ML lifecycle, including data preprocessing, model training, evaluation, deployment, and monitoring in production environments.</li><li>Experience with MLOps tools and practices (e.g., MLflow, SageMaker, Docker, CI/CD pipelines)</li><li>Excellent communication and presentation skills, capable of clearly articulating technical results to both technical and non-technical stakeholders, including senior leadership.</li><li>Track record of stakeholder engagement, collaborating cross-functionally with product, engineering, and business teams.</li><li>Solid foundation in statistics, including techniques such as hypothesis testing, significance testing, and probability theory.</li><li>Comfortable working in an agile environment, contributing to iterative development cycles and cross-functional teams.</li><li>Some experience with Scala is a plus</li></ul> Why might this role not suit you?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 get enjoyment from making the complex, simple. We want the best peopleWe’re keen to meet people from all walks of life — our view is that the more inclusive we are, the better our work will be. We want to build teams which represent a variety of experiences, perspectives and skills, and we recognise talent on the basis of merit and potential.We understand some people may not apply for jobs unless they tick every box. But if you're excited about joining us and think you have some of what we're looking for, even if you're not 100% sure, we'd still love to hear from you. We’re on a mission, We build together, We’re inclusive, We get it done, We communicate with purpose.*Our values are not words on a wall — they are at the heart of our culture. They are how we make decisions and how we treat each other. They are concrete and clear, and reflect what we as people, and as a business, really care about.Kaluza’s vision is to power a world where net-zero is within everyone’s reach. Would you be interested in joining us to help achieve this? From us you’ll get<ul><li>Pension Scheme</li><li>Discretionary Bonus Scheme</li><li>Private Medical Insurance + Virtual GP</li><li>Life Assurance</li><li>Access to Furthr - a Climate Action app</li><li>Free Mortgage Advice and Eye Tests</li><li>Perks at Work - access to thousands of retail discounts</li><li>5% Flex Fund to spend on the benefits you want most</li><li>26 days holiday</li><li>Flexible bank holidays, giving you an additional 8 days which you can choose to take whenever you like</li><li>Progressive leave policies with no qualifying service periods, including 26 weeks full pay if you have a new addition to your family </li><li>Dedicated personal learning and home office budgets</li><li>Flexible working — we trust you to work in a way that suits your lifestyle</li><li>And more…</li></ul>Even better? You’ll have access to these benefits from day 1 when you join.Find out more about working in <a href="http://kaluza.com">Kaluza</a> on our <a href="https://careers.ovo.com/">careers page</a> and <a href="https://www.linkedin.com/company/kaluza/">LinkedIn</a>.

Kaluza is the intelligent energy platform enabling the world&rsquo;s largest energy companies to lead the way in the energy transition. From revolutionising energy retail operations to smart electric vehicle charging, our software is empowering energy suppliers to deliver market-leading experiences for their customers and drive decarbonisation.&nbsp;
Launching in 2019, we&rsquo;ve grown rapidly to over 400 employees across the UK, Portugal and the US. We pride ourselves on technical excellence and building a platform that has a real, positive impact in a fast-evolving industry.&nbsp;
We&rsquo;re on the lookout for talented problem solvers, who are determined to make a difference to the world. Sound like you? Find out more about life at Kaluza&nbsp;<a class="body-text-link hyperlink" href="https://careers.kaluza.com/life-at-kaluza">here</a>.

Machine Learning Engineer

Job title: Machine Learning Engineer&nbsp;Location: London, Bristol, EdinburghSalary: £63,000 - £81,000&nbsp;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.&nbsp;From automating and simplifying core operations including billing to create 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.&nbsp;At Kaluza we embrace a flexible, hybrid work model that balances autonomy with the power of in-person connection. Many of our teams find value in coming together regularly to collaborate, strengthen relationships, and accelerate progress. We’re focused on shaping thoughtful, team-driven approaches that support both business impact and individual well-being.We also prioritise meaningful company-wide gatherings like our annual conference and end-of-year celebrations, that bring us together to align, connect, and celebrate.&nbsp;Where in the world of Kaluza will I be working?You’ll be part of the centralised Kaluza ML team and wider Datacommunity where you’ll share knowledge, support other MLEs, Analysts and Product teams. You’ll be developing optimisation, ML algorithms and GenAI solutions across Kaluza.&nbsp;What will I be doing?Data is the foundation of everything we do, and to deliver our vision we need curious,&nbsp;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 HelpDesk ticket classification.&nbsp;Key responsibilities include:<ul><li>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.&nbsp;</li><li>Productionise 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).</li><li>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.</li><li>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.</li></ul>&nbsp;Ideally you will have:<ul><li>Proven experience in a real-world ML / AI role, with strong understanding of core algorithms, data structures, and model performance evaluation.</li><li>Proficiency in Python, including libraries such as Scikit-learn, Pandas, NumPy, and others commonly used in the ML ecosystem.</li><li>Hands-on experience with GenAI APIs and tools, including deployment and integration of GenAI solutions into production systems.</li><li>Strong analytical and problem-solving skills, with the ability to approach complex problems methodically while keeping business impact in mind.</li><li>Experience across the full ML lifecycle, including data preprocessing, model training, evaluation, deployment, and monitoring in production environments.</li><li>Experience with MLOps tools and practices (e.g., MLflow, SageMaker, Docker, CI/CD pipelines)</li><li>Excellent communication and presentation skills, capable of clearly articulating technical results to both technical and non-technical stakeholders, including senior leadership.</li><li>Track record of stakeholder engagement, collaborating cross-functionally with product, engineering, and business teams.</li><li>Solid foundation in statistics, including techniques such as hypothesis testing, significance testing, and probability theory.</li><li>Comfortable working in an agile environment, contributing to iterative development cycles and cross-functional teams.</li><li>Some experience with Scala is a plus</li></ul>&nbsp;Why might this role not suit you?We are going through a period of significant evolution which is exciting and with it&nbsp;brings lots of opportunity and challenging work, which is not for everyone. To be&nbsp;successful in this role, you will be excellent at operating in ambiguous, changing&nbsp;environments, balancing multiple priorities simultaneously and get enjoyment from&nbsp;making the complex, simple.&nbsp;We want the best peopleWe’re keen to meet people from all walks of life — our view is that the more inclusive we are, the better our work will be. We want to build teams which represent a variety of experiences, perspectives and skills, and we recognise talent on the basis of merit and potential.We understand some people may not apply for jobs unless they tick every box. But if you're excited about joining us and think you have some of what we're looking for, even if you're not 100% sure, we'd still love to hear from you.&nbsp;We’re on a mission, We build together, We’re inclusive, We get it done, We communicate with purpose.*Our values are not words on a wall — they are at the heart of our culture. They are how we make decisions and how we treat each other. They are concrete and clear, and reflect what we as people, and as a business, really care about.Kaluza’s vision is to power a world where net-zero is within everyone’s reach. Would you be interested in joining us to help achieve this?&nbsp;From us you’ll get<ul><li>Pension Scheme</li><li>Discretionary Bonus Scheme</li><li>Private Medical Insurance + Virtual GP</li><li>Life Assurance</li><li>Access to Furthr - a Climate Action app</li><li>Free Mortgage Advice and Eye Tests</li><li>Perks at Work - access to thousands of retail discounts</li><li>5% Flex Fund to spend on the benefits you want most</li><li>26 days holiday</li><li>Flexible bank holidays, giving you an additional 8 days which you can choose to take whenever you like</li><li>Progressive leave policies with no qualifying service periods, including 26 weeks full pay if you have a new addition to your family&nbsp;</li><li>Dedicated personal learning and home office budgets</li><li>Flexible working — we trust you to work in a way that suits your lifestyle</li><li>And more…</li></ul>Even better? You’ll have access to these benefits from day 1 when you join.Find out more about working in&nbsp;<a href="http://kaluza.com">Kaluza</a> on our <a href="https://careers.ovo.com/">careers page</a> and <a href="https://www.linkedin.com/company/kaluza/">LinkedIn</a>.&nbsp;&nbsp;

Machine Learning Engineer

About the Job

About the Company

Kaluza

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