Software Engineer II

You'll join the Kaluza Technology community, working on the Energy Retail platform, a scalable SaaS product that supports energy retailers and decarbonisation efforts. In this role, you'll build and improve backend services using technologies like TypeScript and Node.js, contributing to reliable, event-driven systems at scale.

You'll collaborate with product managers, designers, and engineers to deliver user-focused features, while taking ownership of services or components with support from experienced teammates. Along the way, you'll write well-tested code, work with databases and cloud technologies such as AWS, and help maintain reliable systems in production, all within a collaborative team focused on continuous improvement.

Kaluza helps energy companies overcome today's challenges while accelerating the shift to a clean, electrified future. By combining predictive algorithms with human-centred design, Kaluza makes clean energy dependable and affordable.

• Experience developing backend applications
• Experience with TypeScript, or experience in another language and an interest in working with TypeScript
• Some exposure to event-driven systems or message queues (e.g. Kafka, SQS)
• Familiarity with cloud environments, ideally AWS
• Comfort working with databases (SQL or NoSQL) and an understanding of basic trade-offs
• A collaborative approach, with clear communication and a focus on solving problems as a team
• Curiosity and motivation to continue learning and growing as an engineer

• Salary: £46,000 - £60,000
• Pension Scheme
• Discretionary Bonus Scheme
• Private Medical Insurance + Virtual GP
• Life Assurance
• Access to Furthr - a Climate Action app
• Free Mortgage Advice and Eye Tests
• Perks at Work - access to thousands of retail discounts
• 5% Flex Fund to spend on the benefits you want most
• 26 days holiday
• Flexible bank holidays, giving you an additional 8 days which you can choose to take whenever you like
• Progressive leave policies with no qualifying service periods, including 26 weeks full pay if you have a new addition to your family
• Dedicated personal learning and home office budgets
• Flexible working — we trust you to work in a way that suits your lifestyle

Kaluza is the Energy Intelligence Platform, turning energy complexity into seamless coordination. We help energy companies overcome today's challenges while accelerating the shift to a clean, electrified future.