Climate & Environment Full-time

Principal Engineer

Kaluza

Location

UK

Type

Full-time

Posted

Jan 28, 2026

Compensation

USD 116000 – 153000

Mission

What you will drive

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.

  • 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.

Impact

The difference you'll make

Kaluza helps energy companies overcome today's challenges while accelerating the shift to a clean, electrified future. By orchestrating millions of real-time decisions across homes, devices, markets and grids, Kaluza makes clean energy dependable, affordable and adaptive to everyday life.

Profile

What makes you a great fit

  • Experience enabling engineering teams to use AI and delivering AI/ML powered solutions.
  • 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).

Benefits

What's in it for you

  • Salary: £116,000 - £153,000
  • 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

About

Inside Kaluza

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.