Senior Software Engineer

Kaluza; City of Edinburgh; Hybrid; GBP 60,000 - 80,000; Full time

Benefits offered by this job

Pension Scheme

Discretionary Bonus

Private Medical Insurance + Virtual GP

Life Assurance

Furthr Climate App Access

Mortgage Advice & Eye Tests

Perks at Work

5% Flex Fund

26 days holiday

Progressive Leave Policy

Learning Budget

Home Office Budget

And more!

Job summary

Kaluza is hiring a Backend Engineer in the UK. Role can be based in London, Bristol, or Edinburgh with hybrid working. You will join a large team developing a TypeScript-based backend and data-driven platform, leveraging AWS and serverless tech at scale.

You will collaborate across product and engineering teams, own services end-to-end, and mentor others while delivering real-time, customer-focused features.

Qualifications

• Solid experience developing backend applications, ideally in TypeScript or willing to learn quickly.
• Understanding of event-driven systems and queues.
• Strong cloud experience (AWS) and serverless technologies.
• Experience with database design, SQL/NoSQL.
• Passion for high-quality software and solving customer problems.
• Excellent communication and collaboration skills, willing to mentor.

Responsibilities

• Design, build, and maintain scalable backend services using TypeScript and Node.js.
• Work with event-driven systems and message queues to power real-time features.
• Collaborate with product managers, designers, and engineers to build customer-focused solutions.
• Lead by example, mentoring others and fostering best practices.
• Own services end-to-end, from architecture to production monitoring and improvement.
• Optimize system performance and data design with SQL/NoSQL databases.
• Leverage AWS and serverless architectures for scalable solutions.
• Contribute to a positive engineering culture by sharing knowledge.

Skills

TypeScript

Node.js

AWS

Kubernetes

Docker

Event-driven

SQL/NoSQL

GraphQL

Mentoring

Tools

Terraform

GitActions

Kubernetes

Docker

AWS

Kafka

GraphQL

Job description

• Location: Bristol, London, Edinburgh UK Hybrid.

• Level: C3

• Team: Engineering

• Salary: £60,000 - £80,000

This role can be based in our London, Bristol or Edinburgh offices, and requires an existing right to work in the UK.

At this time, we are not able to offer visa sponsorship for this role. We are committed to building a diverse, global team and our sponsorship policy is evaluated on a role-by-role basis. We encourage you to keep an eye on our careers site to stay informed about future opportunities where we are able to offer visa sponsorship.

Kaluza Overview

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.

Our platform orchestrates millions of real-time decisions across homes, devices, markets and grids. By combining predictive algorithms with human-centred design, Kaluza makes clean energy dependable, affordable and adaptive to everyday life.

With teams across Europe, North America, Asia and Australia, and a joint venture with Mitsubishi Corporation in Japan, we power leading companies including OVO, AGL and ENGIE, as well as innovators like Volvo and Volkswagen.

What will I be doing?

You'll be joining the Kaluza Technology community. We're a large team of both data-led and product focused Software and Production Engineers, pushing the boundaries of technology and working at an extraordinary scale.

As a collective we strive for engineering greatness and by ensuring best practices across the board of the community.

Our tech stack is fluid, but broadly you can find yourself working with:

Typescript, Node JS, Terraform, Gitactions, Kubernetes, Docker, AWS, Kafka, GraphQL

Responsibilities

• Design, build, and maintain scalable backend services using TypeScript and

• Work with event-driven systems and message queues to power real-time, reliable features.

• Collaborate with product managers, designers, and other engineers to build customer-focused solutions.

• Lead by example, contributing to high-quality code, mentoring others, and fostering best practices.

• Own services end-to-end, from architecture to production monitoring and continuous improvement.

• Optimise system performance and data design, working with SQL or NoSQL databases as appropriate.

• Leverage cloud platforms (especially AWS) and serverless architectures to build reliable, scalable solutions.

• Contribute to a positive engineering culture by sharing knowledge and supporting your team.

About You

Ideally, you'll have/be:

• Solid experience developing backend applications, ideally in TypeScript or a willingness to pick it up quickly.

• Understanding of event-driven systems and working with queues

• Extremely comfortable working with cloud infrastructure (AWS preferred), especially serverless technologies.

• Experience with database design, optimisation, and maintenance (SQL or NoSQL).

• Passionate about high-quality software and solving real customer problems.

• Strong communication and collaboration skills, you enjoy mentoring and knowledge sharing.

• Proactive mindset and ability to thrive in ambiguity.

Where you'll work

We offer flexible working, with an expectation of 3 days a week in the office. This gives us the best of both: real time together to collaborate and build relationships, with the flexibility to work in the way that suits you best the rest of the week.

Kaluza Values

Here at Kaluza we have five core values that guide us as a business:

Play to win, Solve the real problem, Build trust every day, Own the outcome, Go further together.

Our Perks

• 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

• Progressive Leave Policy - With no qualifying service periods, including 26 weeks full pay if you have a new addition to your family

• Personal Learning Budget - Upskill, learn and grow!

• Home Office Budget

• And more!

We want the best people

We'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.

Find out more about working in Kaluza on our careers page and LinkedIn. You can also find our Applicant Data Protection Policy here.