Senior Platform Engineer - UK (London)

Want to help shape how AI is built and scaled at Sonnedix? As Senior Platform Engineer, you'll implement and own the shared platform on which Sonnedix's AI solutions are built, deployed and run. You'll take the agreed platform design into production and make sure AI solutions can connect safely with our systems of record and other core systems. This is a hands-on role with accountability for the platform's reliability, security and day-to-day evolution. You'll establish release standards, permissions, observability, evaluation and shared retrieval services, while working closely with the AI team, delivery partners, DevOps, Cyber and Architecture to make solutions safe and straightforward to build and operate.

Desirable skills:

• Extensive experience building and running production platforms that other teams depend on, using a modern technology stack such as Python, TypeScript, PostgreSQL and Kubernetes.
• Strong experience across security, identity, automated testing, CI/CD and observability, with a clear focus on reliability and secure development.
• A track record of building and maintaining platforms pragmatically, with the ability to explain technical and risk trade-offs clearly to both technical and business stakeholders.

AI & Digital Literacy

• Experience running large language model or agent workloads in production, or strong evidence of being able to develop this capability quickly.
• Understanding of AI evaluation, retrieval, model and prompt regression and agent observability, with good judgement around when AI or conventional software is the right solution.

We deploy AI across the business, from generation and trading decisions to the everyday workflows of every team. We invest in our people's digital fluency so everyone works alongside these tools with confidence.

About Us: Sonnedix is a global renewable energy company delivering 100% clean electricity through a diversified portfolio of solar, wind, and storage assets. With almost two decades of sustainable growth, we are committed to Powering a Bright Future, as we continue acquiring, developing, building, and operating renewable energy projects for the long-term, delivering innovative, tailored, and fully renewable energy solutions to our customers.

What we offer:

• One company, many careers - as the company grows, we offer the opportunity for you to develop your career with us.
• An inclusive, international working culture with a diverse team of friendly professionals from across the world.
• A commitment to flexibility - hybrid working, generous annual leave allocation with an additional four weeks of discretionary unpaid leave.
• A family first company - generous paid parental leave and support for carers.
• The ability to 'work from elsewhere', for up to six weeks in a year.
• Summer working hours.
• Financial, Social, Mental & Physical wellbeing support.
• The Sonnedix Academy – a range of training and development opportunities including professional development, management and leadership programs, technical training, essential skills, DEI, mentorship and much more.
• Dedicated learning paths, tools, and resources to help every colleague confidently use AI and digital tools in their work.
• Fantastic office environments.
• Social events, team building opportunities and One Team Network groups, which are employee-led groups, based on shared identities, interests, backgrounds and life experiences.