(Junior) Customer Success Manager (f/m/x)

Hamburg Hybrid (50/50) | 45.000 – 55.000 € p.a. (Full-time) | German C1

Do you want customers to feel well taken care of — and be the person who makes that happen? Join suena energy as (Junior) Customer Success Manager (f/m/x). Customer Success is what keeps our customers close and confident — the foundation for partnerships that last and grow — and the single channel that routes every request internally, so the rest of the team stays focused instead of being pulled in every direction.

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 50+ 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 Customer Success is next: over the past months, Lars built the function from scratch, and now we're adding a junior and a regular CS to turn it into a real team.

We're filling two seats — one junior, one regular. The main difference is how much you already bring:

• Junior: early in your career — we care most about how you work (organized, curious, reliable) and your drive to grow into the customer and technical side.
• Regular: you've worked with customers before and can own accounts, run QBRs, and read technical data confidently from early on.

Either way, what counts:

• You can read the numbers and make them make sense – you understand a performance dashboard and explain it to a customer in plain language.
• Calm, warm, and real – our customers are engineers and asset operators; they trust substance, not a sales show.
• Organized and reliable – you keep track of what's open and don't let things slip.
• Up for building, not just running – you see an unfinished CS function as a plus, not a problem.
• A genuine team player – you pull the same rope with Sales and Ops.
• German at C1 or native level, plus solid English (B2) – most customer communication runs in German; English is our internal working language.
• Energy background? A plus, not a requirement – excitement for the industry and a fast ramp-up matter more.

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 Kathi (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.