Smart EV Charging Platform Cuts Customer Costs 70%, Whilst Reducing Grid Peak Demand
6+ year and ongoing partnership delivers real-time power management system now scaled across multiple energy providers worldwide
About Kaluza
An OVO Group company, Kaluza is an intelligent platform ecosystem, powering the future of energy. From revolutionising billing to smart electric vehicle charging, Kaluza’s technology is empowering some of the biggest energy suppliers to better serve millions of customers.
Kaluza’s market leading innovation is recognised across the industry, winning ‘Technological Innovation’ in edie’s Sustainability Leaders Awards 2020, ‘Transport Technology’ in BusinessGreen Technology Awards 2019 and ‘Best Innovation in Electricity’ at the UK Energy Innovation Awards 2019.
about the project
Kaluza's Needs
Grow the software team
To meet the growing demand for its innovative cloud technology, Kaluza needed additional developers to join different software squads, working across various products.
Quick project kick-off
The company required expertly skilled software engineers who can not only hit the ground running, but proactively contribute to new product development and tech stack expansion.
Modernise tech stack
Some of the main technologies required to augment the skills gap were React, ES6, NodeJS, Typescript, GraphQL, Go, Python, microservices architecture, Kafka and cloud technologies.
The Zartis Team
Zartis deployed 4 software experts with the required skills, significantly increasing the capacity of one of the teams in a short span of time.
Since 2019, our team has expanded to nearly 30 engineers working across different products, and squads – from locations such as Spain, Italy, Romania, Greece, Portugal, Hungary, Poland, the UK, France and Croatia.
how we worked together
The Zartis Approach
Cross functional teams working across multiple products and squads
Rapid team scaling (2019-present):
Zartis was able to quickly hire 4 engineers with the required skills in the initial deployment, significantly increasing the capacity of one of Kaluza's teams in a short span of time. Since 2019, our team has expanded to nearly 30 engineers working across different products and squads. This distributed team spans multiple European locations including Spain, Italy, Romania, Greece, Portugal, Hungary, Poland, the UK, France, and Croatia, bringing diverse perspectives and expertise to Kaluza's technology initiatives.
Embedded squad model
Zartis engineers integrated directly into Kaluza's product squads as full team members, not external contractors. Our engineers participate in daily standups and sprint planning, contributing to product development and architecture decisions alongside Kaluza's internal teams. This embedded approach means Zartis engineers are actively involved in technical debt reduction initiatives, proof-of-concept exploration, and DevOps and infrastructure improvements, ensuring they're true partners in Kaluza's technology evolution.
Remote-first collaboration
Zartis engineers brought valuable expertise in effective remote working, helping establish highly efficient processes and workflows optimised for remote collaboration. Working together, Zartis and Kaluza developed optimised communication processes ensuring transparency across distributed teams, implemented asynchronous collaboration workflows that accommodate different time zones and working styles, and established documentation practices for remote knowledge sharing that keep everyone informed and aligned.
Knowledge transfer & upskilling
Beyond delivery, Zartis engineers actively share expertise across a range of cutting-edge technologies. This includes modern frontend frameworks like React and TypeScript, backend microservices patterns using Go and Node.js, and event-driven architectures powered by Kafka. The team also transfers knowledge in cloud-native infrastructure approaches and test automation and quality assurance practices, continuously raising the technical capabilities of the broader Kaluza engineering organisation.
The Results
increased expertise
Knowledge sharing of state-of-the-art practices and technologies.
continuous improvement
Introducing new technologies. Reducing technical debt.
ongoing success
6+ years of working together and continuing collaboration.
Building the Energy Transition?
If you’re scaling clean energy technology and need senior engineering talent who can contribute from day one, Zartis delivers embedded teams with deep expertise in modern cloud architectures, real-time systems, and distributed platforms.