Senior Site Reliability Engineer in London

At Lunar Energy, we're on a mission to transform the way we power our homes by building an ecosystem of all‑electric products, starting with a next‑generation home battery system and a cloud PaaS to manage large fleets of Distributed Energy Resources (DER) assets. We are looking for a Senior Site Reliability Engineer to help ensure our platform remains reliable, secure, and efficient. In this role, you will own end‑to‑end platform reliability, security, and internal tooling, working closely with developers and product teams to maintain the health of our systems in AWS and beyond.

Key Responsibilities

• Design and implement scalable, highly available infrastructure and internal tooling solutions in AWS.
• Take ownership of ensuring continuous operation of critical systems, including databases and ETL pipelines.
• Develop and maintain highly effective CI/CD pipelines.
• Enable fast iteration through implementation and improvement of automation and AI.
• Reason about cloud infrastructure strategy to help ensure that solutions are the best fit for requirements.
• Develop and evangelise security best practices, such as automation of a secure software development process.

Key Qualifications

• Bachelor's or Master's degree in a technical field, or equivalent practical experience.
• A minimum of 8 years’ experience in DevOps, SecOps, Platform Engineering or SRE roles.
• Experience building CI/CD pipelines.
• Experience using infrastructure as code.
• Experience managing cloud databases at scale in at least one of: PostgreSQL, Elasticsearch, InfluxDB.
• Hands‑on experience with AWS.
• Strong understanding of networking and network security.
• Proven industry experience in SecOps.
• Proficiency in one or more scripting programming languages (Python, Ruby, Bash, etc.).
• Linux.

Desirable Skills

• Experience with serverless technologies.
• Experience with TypeScript.
• Proficiency in application penetration testing, ethical hacking, and vulnerability assessments.
• Interest in the IoT and renewable energy industry.

You Are:

• Impact‑Driven: Thrive in a small, agile team where your initiative and contributions make a significant impact.
• Curious and Enthusiastic: Eager to embrace new challenges and continuously expand your skill set.
• Self‑Starter: Capable of managing your own workload and deadlines while taking personal responsibility for your tasks.

Joining us gives you:

• A competitive salary and stock options package.
• 25 days annual leave a year + public holidays.
• Private Medical Insurance via BUPA (medical history disregarded).
• A wellbeing and lifestyle benefits plan through Medicash.
• 5% employer contributions pension matching.
• A budget for work‑related training of £1,000 per financial year and an allowance of 4 training days.
• Cycle To Work scheme and Workplace Nursery benefit.
• £200 upon joining for remote work set‑up.
• Access to Spill – Mental Health Support platform.
• Enhanced Maternity + Paternity Pay.
• Regular socials and activities, online and in person.
• Flexible start and finish times, fully remote working or hybrid depending on preferences.

Duration: Full‑time

Location: Fully remote within the UK. You are welcome to visit our office in Spitalfields, E1 London, as often as you like.

Equal Opportunity Statement: We are proud to be an equal opportunities employer and welcome applications from all suitably qualified persons regardless of race, sex, ethnicity, disability, religion/belief, sexual orientation, gender identity or expression, nationality, age or social background. We would like to actively encourage applications from those who identify with less represented and minority groups. We do not filter applications by university background and encourage those who have taken alternative educational and career paths to apply.