Finance System Manager in London

The Finance Systems Manager will take ownership of Sonnedix’s SAP S/4HANA Public Cloud finance platform, supporting the stability of day-to-day operations, delivering effective system support, and driving ongoing improvements across key finance processes. With a focus on Procure-to-Pay and Order-to-Cash, this is a hands-on role that combines system stewardship, prioritisation, and continuous improvement within a small, collaborative team.

You will work closely with the Technical Lead and Systems Analyst, acting as a key link between Finance, IT, and external partners, including our AMS provider and SAP. The role involves managing and prioritising the system backlog, coordinating support activity, and helping ensure external support capacity is used effectively. You will also contribute directly to resolving more complex issues and supporting improvement initiatives that enhance automation, reduce manual effort, and strengthen financial controls. This is a varied role that blends operational ownership with technical and functional involvement, offering the opportunity to shape how the finance systems evolve over time.

• Experience with SAP Finance (FICO / S/4HANA), ideally including S/4HANA Public Cloud, or a strong understanding of its capabilities and constraints
• Experience and interest in using digital tools and workflows to improve efficiency, innovation, and productivity, including driving adoption, supporting system optimisation, and contributing to finance transformation and continuous improvement through automation and process improvement initiatives
• Comfortable working in a collaborative, hands-on environment within a lean team structure, balancing system ownership with coordination and delivery
• Able to make clear, practical decisions and support effective prioritisation across competing demands
• Confident working with external partners and vendors, including providing constructive challenge where needed
• Strong communication skills, with the ability to engage effectively with both finance users and technical stakeholders

We use English as our business language; please submit your CV in English.

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.

We help you thrive at work and beyond: a people-first company, committed to offer flexibility, a family-first approach, wellbeing and training support, and – above all – team connection and community.

We are tech-fluent by design: Technology isn’t a support function, it’s how we run. We deploy AI across the business and future-proof your career by investing in our people’s digital fluency.

We have nearly two decades of sustainable growth: Our successful track-record of nearly 2 decades is testament to our strong sustainable growth focus. We are a reliable partner and employer, for the long term.

We are truly diverse and inclusive: A culture of listening to each other, educating ourselves, and implementing changes to improve and ensure every member of our One Team feels and knows they belong.

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
• and many more local benefits!