Principal Engineer, Kaluza
£116-153k
+ Discretionary Bonus Scheme
1+ day a week in office
Intelligent software platform powering the future of energy
Be an early applicant
Intelligent software platform powering the future of energy
501-1000 employees
Be an early applicant
£116-153k
+ Discretionary Bonus Scheme
1+ day a week in office
501-1000 employees
Company mission
To help decarbonise the world.
Role
Who you are
- Demonstrable experience in architecting solutions in complex business domains, particularly interface design and data modelling, ideally with experience in AWS and API design
- Proven track record delivering global B2B2C SaaS (energy or other mission‑critical industries)
- Success driving adoption of modern engineering practices (e.g. DevOps, CI/CD)
- Experience leading teams through significant changes in ways of working
- Ability to ramp up rapidly in new domains and technologies
What the job involves
- Reporting to: Director of Enterprise Architecture
- As a Principal Software Engineer at Kaluza, you will be the leading technical authority for a major global product area comprising multiple modules. You will lead innovation on some of the most complex, ambiguous, and large-scale solutions, aligning them with target architecture standards and contributing to the creation of a scalable platform
- You’ll have a broad sphere of influence, enabling multiple teams and serving as a strategic partner to our architecture leadership team and our community of principal and staff engineers
- Your impact will come mostly from 'hands-off' work; you’ll not be expected to write code day-to-day. But for some challenges, you may need to dive into code-level design or help build a proof-of-concept
- Architect modern distributed, cloud-based systems applying modern architecture and engineering practices in an enterprise software environment
- Shape and influence technical vision and product roadmaps to align with business goals
- Provide hands-on leadership, making appropriate technical choices to satisfy requirements
- Mentor and guide engineers in delivering autonomous, loosely coupled distributed systems with proven architectural principles and patterns
- Lead technical due diligence and make high-stakes decisions with confidence
- Deliver results, influence diverse audiences, and orchestrate cross-functional solutions spanning multiple product features
- Engage effectively with both technical teams and executive leaders
- Work independently and collaboratively, bringing strong opinions while respecting others, communicating openly, and maintaining self-awareness with a continuous growth mindset
Application process
- Closing Date: 5th December 2025
Our take
The energy landscape is one of the most dynamic and fast-evolving sectors in the world. More and more energy retailers are looking to move further toward digitisation and reap the benefits of modern technology in an increasingly connected world. But many are struggling with the transition, held back by legacy operating systems which slow them down, drain resources, and hamper innovation.
This is where Kaluza comes in. An ecosystem of platforms whose services range from energy billing to smart electric vehicle charging, Its real-time cloud platforms transform supplier operations, reducing the cost to serve and boosting customer engagement. Essentially, its platform is aimed at helping businesses streamline their operations, saving them time, effort, and money which can be better invested elsewhere.
Kaluza is riding the momentum of a growing desire for sustainable business and services. Its program relating to electric car charging, for example, will be able to capitalise on huge new demand in that sector - over 100,000 electric cars are already on the roads in the UK, and Bloomberg New Energy Finance has predicted that electric cars will account for over 50% of new global car sales by 2040. As the globe moves further towards sustainable use of energy in the coming years, Kaluza could be very well positioned to capitalise.
Freddie
Company Specialist at Welcome to the Jungle
Insights
33% employee growth in 12 months
Company
Funding (1 round)
Jun 2024
$100m
LATE VC
Total funding: $100m
Company benefits
- Progressive leave policies - including leave dedicated to the moments that matter to you the most
- Annual discretionary bonus
- Dedicated personal learning and home office budgets
- Flexible working — we trust you to work in a way that suits your lifestyle
- 26 days holiday
- Kaluza Share Scheme
Company HQ
Kensington, London, UK
Articles
Leadership
Melissa Gander
(CEO)Initially joined Kaluza as COO before becoming CEO in 2024. Previously worked at OVO Energy in a number of roles, including Managing Director of Smart Metering and Group COO. Prior to that, they worked at INEXUS as a Process and Performance Analyst and a Customer Manager.
People progressing
Joined as Senior Technical Product Manager in 2017, promoted after 2 years to Head of Product, promoted again in 2024 to their current position as Director of Product.
Joined Kaluza in 2020 as a Software Engineer, and in less than 2 years was promoted to Software Engineering Manager and again promoted in 2023 to Senior Software Engineer.
Diversity, Equity & Inclusion at Kaluza
- We are developing an dedicated Early Talent programme with a focus on underrepresented groups, offering different training opportunities within the business
- Our applicant tracking system, Greenhouse, also anonymously tracks the diversity of each candidate pipeline, so we can proactively take action when a pipeline needs to be more diverse
- We invest in tools, like Textio, and focused diversity job boards to help us reduce bias in our job postings and recruitment activity
- Commitment in improving diversity across our Tech Teams and working with companies to improve the tech ecosystem as a whole, specifically have committed to 25% Women in Tech by 2025
- We've signed up to numerous charters, like the Tech Talent Charter, Race at Work Charter and Trans in the City, to show our continuing commitment to improving I&D within Kaluza and the wider community
- Within Kaluza we have belonging communities set up, to offer support and forums for everybody
- We run monthly Inclusive Hiring Skills & Bias training that are open to all Kaluza employees
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