Job title
Senior Security Engineer
Location
London, Edinburgh, Bristol (Hybrid)
Salary
£69,500 - £104,500
Company overview
Kaluza wants to power a world where net‑zero is within everyone’s reach, by building the platform that will accelerate a sustainable, affordable and resilient energy transition. It’s a huge challenge, but often the toughest problems are the most rewarding to solve. Since launching in 2019, Kaluza’s technology has empowered some of the biggest energy suppliers to better serve millions of customers, from revolutionising billing to smart electric vehicle charging. Our real‑time cloud platforms transform supplier operations, reduce cost‑to‑serve and boost engagement while enabling decarbonisation with smart, low‑carbon technologies.
What will you be doing?
- Integrating security platforms and tooling to proactively prevent, accurately detect, and effectively respond to emerging security threats.
- Partnering with Platform Engineering and IAM teams to embed Zero Trust architecture and ensure the implementation of strong privileged access management (PAM) controls.
- Empowering Kaluza’s product teams to rapidly deliver secure systems by cultivating a strong, collaborative security culture.
- Delivering actionable guidance to product and engineering teams on identifying, prioritising, and mitigating systemic risks and vulnerabilities.
- Defining and evolving security best practices for our systems and helping teams apply these with expert advice and automation.
- Working across the full stack with AWS, Cloudflare, Okta and Kubernetes, focusing on projects spanning infrastructure, release engineering and security detection.
Is this the job for me?
Ideally you’ll have:
- Scripting experience (Python, Go).
- Knowledge of AWS/GCP security best practices.
- Knowledge of Kubernetes security best practices.
- Extensive experience working with infrastructure‑as‑code (e.g., Terraform).
- Experience managing web application firewalls (e.g., Cloudflare).
- Awareness of common software security flaws and web application security best practices (OWASP Top 10, CWE/SANS Top 25).
- Knowledge of CI/CD and DevOps principles and security considerations.
- An inquisitive and curious approach, with confidence to tackle difficult problems.
- Problem solver / structured thinker.
Values
We’re on a mission, we build together, we’re inclusive, we get it done, we communicate with purpose.
Benefits
- 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 (additional 8 days you can choose).
- 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 – you can work in a way that suits your lifestyle.
- And more…
How you’ll grow at Kaluza
We trust you to work in a way that suits your lifestyle. Teams can choose how and where to work, whether from our offices, home or a mixture of both. We also encourage monthly and quarterly team gatherings and cover travel and accommodation costs when necessary. Kaluza annually hosts a conference and end‑of‑year celebrations.
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