The Role

Interested in a role where your decisions directly shape how a global renewable energy portfolio performs in the market? As a Portfolio Manager / Senior Portfolio Manager – Energy Portfolio Management & Structuring, you will play a central role within Sonnedix’s Integral Energy Management function, responsible for optimising how our portfolio is priced, hedged, and monetised across multiple markets. Working closely with the Head of Portfolio Structuring and cross‑functional teams, you will manage portfolio exposure, design hedging strategies, and support the structuring of commercial solutions such as PPAs and route‑to‑market agreements. Combining strong commercial judgement with advanced analytics, you will ensure Sonnedix maximises value from its renewable assets.

Alongside day‑to‑day portfolio management, you will help drive a more data‑led and scalable energy management function. You will build and apply quantitative models, automate processes through coding, and translate complex datasets into clear commercial insights that inform investment, optimisation and strategic decisions. Operating at the intersection of trading, structuring and analytics, you will play a key role in shaping how Sonnedix manages risk, captures value, and evolves within increasingly complex energy markets.

Desirable Skills

- Proven experience in energy portfolio management, structuring or trading, with exposure to renewable assets
- Strong understanding of PPAs, hedging strategies and route‑to‑market solutions
- Ability to combine quantitative modelling with commercial decision‑making
- Proficiency in Python (or similar) for modelling, automation and data analysis




- Strong stakeholder management and communication skills, with the ability to influence cross‑functional teams

AI & Tech Fluency

- Confident use of AI tools (e.g. Copilot, Claude or similar) to enhance productivity, analysis and decision‑making
- Ability to leverage coding, automation and data tools (e.g. Python, SQL, Power BI) to scale workflows, improve analytics and drive efficiency

We use English as our business language, please submit your CV in English. At Sonnedix, 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.

Studies show that many qualified candidates hesitate to apply unless they meet every requirement. If this role excites you, but you don’t meet every single qualification, we still encourage you to apply. We value diverse skills, perspectives, and experiences that contribute to a stronger team.

About Us

Sonnedix is an international Renewable Energy Producer (REP) with over a decade of sustainable growth. Sonnedix develops, builds, and operates renewable energy projects for the long‑term, focusing on providing green, affordable electricity to our customers and acting as a true social citizen where it operates.



Our track record and financial strength enable us to build trusted relationships with customers and partners, to smartly expand the adoption of renewable energy and play a vital role in the energy revolution. We are proud of our diverse team of experts, the clean energy we generate and to make a positive difference for the communities where we operate. Hear from some of our team about Sonnedix: https://www.sonnedix.com/careers

What we offer

- One company, many careers – as the company grows, you have the opportunity 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!

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📌 Senior Portfolio Manager - Madrid, Comunidad de Madrid, Spain
🏢 Sonnedix
📍 Madrid