Working Student (f/m/x) Finance Operations

Hamburg Hybrid | 16 – 18 € per hour (15–20 hrs/week) | English B2–C2

Do you want to help build the finance backbone of a company that’s enabling batteries and renewables to power our grids, and be the one who makes sure the numbers add up? Join suena energy as Working Student (f/m/x) – Finance Operations and help us build a finance and controlling setup that keeps pace with our growth. Expect a real mix: deep dives into market and trading data alongside the hands-on work that keeps Finance running smoothly.

suena energy is a green tech startup specializing in algorithmic energy trading for energy storage systems and renewables.
Our vision: a world where clean energy is used reliably, economically, and intelligently - and where we actively accelerate the energy transition by enabling batteries and renewables to power our grids. With our AI-based optimization and trading software, we maximize the value and market participation of large-scale energy storage and renewable assets in short-term electricity and balancing markets - while minimizing risk for operators.

We’re a 60+ person team that’s fast-paced by nature, but the kind of place where people actually look out for each other. Following our successful Series A, we’re investing in expanding our team – and building out Finance so it can grow with the business.

• Analyze data and make sense of it – from market and trading data to finance figures, you help us understand what the numbers are telling us.
• Make sure our numbers are right – spot errors, question inconsistencies and help set up checks that catch them early.
• Build smart Excel solutions – that make everyday work easier and faster.
• Support day-to-day finance operations – invoices, billing, data maintenance and pre-coding in DATEV.
• Bring your own ideas – think along and suggest how things could work better.
• Support other projects in the team – depending on capacity, with insights into areas beyond Finance.

• Advanced Bachelor’s or Master’s student in business or economics – ideally with a focus on finance, accounting or a related field.
• You catch what doesn’t add up – when a number looks off, you dig in instead of passing it on.
• You enjoy the mix – a complex data analysis one day, cleaning up invoices the next, and you take both seriously.
• Confident in Excel – and you’d rather build a better process than repeat the same manual steps every month.
• First experience with DATEV – a plus, not a requirement.
• Fluent English – our working language. German is a plus, not a requirement.
• Based in or around Hamburg – especially during onboarding, you’ll be in the office more than once a week, so a short commute matters.

• People at the Core: Clear structures, democratic decisions, and a feedback culture where your voice counts.
• Shape the Future: Contribute to the energy transition by working on sustainable energy solutions in a growing market environment.
• Connecting & Co-Creating: Strategy off-sites and onsite weeks for real collaboration and shared ideas.
• Work Your Way: Home office and flexible hours – you know what works best for you and your team.
• Good Vibes: Yoga, shared lunches, after-work fun – we keep the energy up, even when it’s busy.
• Body & Mind: Urban Sports Club or Wellpass – your choice. Plus wellbeing check-ins and mental health support via nilo.health – your energy matters.
• New Office: 10th-floor office with rooftop terrace, canteen, great views, ergonomic desks, hardware of your choice, and a pet-friendly environment.
• Sustainable Extras: Subsidized Deutschlandticket, Job Bike, Givve Card and more – supporting your mobility and everyday life.

We look forward to receiving your application, earliest start is as soon as possible. If you have any questions, feel free to reach out — your contact is Katharina Adler (Interim Talent Partner).

You’ll hear back from us within 5 working days of your application. We value your time and want to make the process as transparent as possible. Once we receive your application, we’ll send you a confirmation email outlining the next steps and what you can expect from our interview process.

We can’t wait to meet you!

suena energy is an equal opportunity employer. We celebrate diversity and reject any form of discrimination. It is important to us to create an inclusive environment for all our team members. We want to particularly emphasize that our call for applicants is addressed to all genders. We welcome applications from people with disabilities.