An employee stands in front of the glass building of Uniper's headquarters in Düsseldorf.

Werkstudent/​-In After Sales & Customer Service (w/​m/​d)

Calendarimmediately

ClockPart-time, Hybrid, Fixed-term

GlobeDüsseldorf

Werkstudent/-In After Sales & Customer Service (w/m/d)

Location: Düsseldorf, North Rhine-Westphalia, Germany

Unser "After Sales"-Team in Düsseldorf sucht DICH!

Wir sind Uniper

Als internationales Energieunternehmen setzt sich Uniper dafür ein, die Energie-Evolution aktiv voranzutreiben und die Versorgungssicherheit von heute und morgen zu gewährleisten. Wir sind davon überzeugt, unsere Ziele sowie nachhaltige Veränderungen nur mithilfe der individuellen Perspektiven, Denkweisen, Kompetenzen und Erfahrungen zu erreichen, die jeder einzelne Mitarbeitende im Team mitbringt. So können wir voneinander lernen und uns gemeinsam weiterentwickeln, um messbare Ziele zu erreichen. Vielfalt und Inklusion werden bei Uniper großgeschrieben und als integraler Bestandteil der Unternehmenskultur aktiv gelebt. Chancengleichheit und ein Arbeitsumfeld, in dem sich alle gleichermaßen wertgeschätzt und respektiert fühlen, sind für uns zentrale Faktoren für Innovation, Kreativität und um die Potenziale der Mitarbeitenden bestmöglich zu fördern. Ob an den operativen Standorten von Uniper, im Büro oder Homeoffice – unabhängig vom Arbeitsplatz ist unser Team über das gemeinsam entwickelte Verständnis unserer Unternehmenskultur, den „Uniper Way“, stets miteinander verbunden. Begleite auch Du uns auf dem Weg in eine dekarbonisierte Energiezukunft. Energy evolution starts with U!

Deine Aufgaben

  • Du unterstützt unser After-Sales-Team im operativen Tagesgeschäft und hilfst bei der Bearbeitung von Kundenanfragen sowie bei vertragsbezogenen Themen, z. B. Vertragsänderungen, Verlängerungen oder Produktanpassungen.
  • Du hast Freude am Kundenkontakt und unterstützt den First-Level-Support für Uniper Digital. Dabei beantwortest Du Fragen zur Plattform, zu Verträgen und digitalen Produkten und hilfst bei der Klärung technischer Probleme.
  • Du hilfst uns dabei, After-Sales-Prozesse einfacher, digitaler und effizienter zu gestalten. Gemeinsam analysieren wir bestehende Abläufe und entwickeln konkrete Verbesserungen und Automatisierungsmöglichkeiten.
  • Du übernimmst eigenständige Arbeitspakete und kleinere Projekte, z. B. Datenanalysen, Stammdatenabgleiche, Datenbereinigungen oder Prozessverbesserungen.
  • Du pflegst und erweiterst unsere Wissensdatenbank und FAQ-Inhalte und hilfst damit, Wissen für Kunden und interne Ansprechpartner leichter zugänglich zu machen.
  • Du wirkst an Projekten und kontinuierlichen Verbesserungsinitiativen im After Sales mit und bekommst die Möglichkeit, eigene Ideen einzubringen und umzusetzen.

Dein Profil

  • Du studierst aktuell Wirtschaftswissenschaften, Wirtschaftsingenieurwesen, Betriebswirtschaft, Ingenieurwissenschaften oder einen vergleichbaren Studiengang und hast Interesse an der Energiebranche.
  • Du denkst kundenorientiert und hast Freude daran, Lösungen zu finden, die für Kunden funktionieren und gleichzeitig unsere internen Anforderungen berücksichtigen.
  • Du arbeitest strukturiert und lösungsorientiert: Du kannst Probleme verstehen, Ursachen analysieren und pragmatische Lösungen entwickeln.
  • Du bist zuverlässig und eigenständig und behältst auch dann den Überblick, wenn mehrere Themen gleichzeitig anstehen oder sich Prioritäten verändern.
  • Du hast ein gutes Verständnis für Prozesse und Daten und arbeitest sorgfältig und strukturiert. Idealerweise hast Du bereits erste Erfahrungen mit Excel, Power BI oder vergleichbaren Werkzeugen.
  • Du hast Interesse an Digitalisierung, Automatisierung und neuen Technologien und möchtest verstehen, wie sich Geschäftsprozesse durch digitale Lösungen verbessern lassen.
  • Du bist neugierig und lernbereit und findest Dich schnell in neue Produkte, Systeme und Arbeitsweisen ein.
  • Du verfügst über gute Deutsch- und Englischkenntnisse in Wort und Schrift.

Job ID:

89598

Location:

Düsseldorf, Germany

Type of contract:

Fixed-term

Working model:

Part-time, Hybrid, undefined

Start date:

immediately

Application deadline:

04/11/2026

Do you have any questions?

If you have any questions, please feel free to contact us by e-mail and we will get back to you:

career@uniper.energy

Top Employer Germany 2026

What makes Uniper stand out as an employer

  • Training

    Further education

    With a mix of digital and analog learning formats and topic-specific communities, we promote your personal and profossional development and lifelong learning.

  • Award

    Coachings and Mentoring

    Experienced specialists and managers are happy to support you in strengthening your skills and advancing your career development.

  • Bubble

    Open feedback culture

    Performance discussions, 360-degree feedback and employee surveys will help you and the company move forward, strengthen our collaboration and give you room to contribute your ideas.

  • Health

    Health care

    Safety and well-being are our top priorities. That's why we offer you regular free preventive medical checkups as well as a variety of learning impulses on occupational safety, health and well-being, and support programs.

  • Ball

    Sport and Fitness

    With our online exercise courses, sponsorship of your participation costs in central sports events and a large sports community, we offer you a healthy working environment.

  • Canteen

    Healthy nutrition

    You can enjoy a wide range of healthy and balanced meals in our canteen. In addition, you can participate in nutrition programs.

  • Fonds

    Insurance and coverage

    We take care of you and offer you a wide range of coverage beyond the legal requirements with our company pension plan, accident insurance, company health insurance and continued salary payments in the event of illness.

  • Money

    Financial benefits

    We pay capital-forming benefits and offer you a wide range of financial benefits through our corporate benefits program

  • Smiley

    Work Life Balance

    We support you in balancing your private and professional life through flexible working time models, job sharing, sabbaticals and extensive offers in the area of child care and nursing.

  • Car

    Free parking spaces

    We provide you with free parking spaces.

  • Bicycle

    Job bike leasing

    We offer you the option of leasing a bicycle through deferred compensation with financial benefits.

The benefits may vary slightly depending on location and role. You can find a complete overview of the benefits here:Benefits
About Uniper
Diversity
FlexWork

Transforming energy security through expertise and commitment

Uniper is a European energy company with a global reach that makes a decisive contribution to security of supply and energy transformation.  We work in very diverse teams and offer our employees as much flexibility as is possible.

Equity, mutual appreciation and respect are the core of our corporate culture. At our company you will have the opportunity to shape new technologies, work on solutions for a modern and future-oriented energy supply and actively design change processes.

360_tour.webp

Düsseldorf

Virtual tour of our offices in Düsseldorf

With our virtual reality tour, you can experience Uniper from a completely new perspective. Our Düsseldorf offices can be viewed in detail without being on site. You can also get to know your colleagues and the working environment virtually. A highlight of the tour is built right into the beginning: a video from a bird's eye view impressively shows how attractive our location in the Medienhafen is.

Düsseldorf_Standort_1.webp

Düsseldorf

Uniper has been based at our headquarters in Düsseldorf's Media Harbour since 2019. Our central office consists of the two buildings Caprocorn and Float, which are connected by a walkway to form a single unit.

Düsseldorf_Standort_2.webp

Düsseldorf

Uniper has been based at our headquarters in Düsseldorf's Media Harbour since 2019. Our central office consists of the two buildings Caprocorn and Float, which are connected by a walkway to form a single unit.

Düsseldorf_Standort_3.webp

Düsseldorf

Uniper has been based at our headquarters in Düsseldorf's Media Harbour since 2019. Our central office consists of the two buildings Caprocorn and Float, which are connected by a walkway to form a single unit.

Düsseldorf_Büro_1.webp

Düsseldorf

On the office floors, the modern furnished meeting areas and lounges are located in the centre of each floor and our colleagues work separately from the passage areas, each with window fronts. All workstations have modern equipment and height-adjustable desks.

Düsseldorf_Büro_2.webp

Düsseldorf

On the office floors, the modern furnished meeting areas and lounges are located in the centre of each floor and our colleagues work separately from the passage areas, each with window fronts. All workstations have modern equipment and height-adjustable desks.

Düsseldorf_Büro_3.webp

Düsseldorf

On the office floors, the modern furnished meeting areas and lounges are located in the centre of each floor and our colleagues work separately from the passage areas, each with window fronts. All workstations have modern equipment and height-adjustable desks.

Düsseldorf_Café_1.webp

Düsseldorf

We offer many services at the location that positively support everyday working life. These include an IT walk-in centre, a fitness studio, an underground car park with free parking spaces for cars and an extra garage for bicycles, including showers. For a balanced diet, there is a canteen as well as a café and a deli with fruit and healthy snacks, which are also open to the public.

Düsseldorf_Café_2.webp

Düsseldorf

We offer many services at the location that positively support everyday working life. These include an IT walk-in centre, a fitness studio, an underground car park with free parking spaces for cars and an extra garage for bicycles, including showers. For a balanced diet, there is a canteen as well as a café and a deli with fruit and healthy snacks, which are also open to the public.

Düsseldorf_Café_3.webp

Düsseldorf

We offer many services at the location that positively support everyday working life. These include an IT walk-in centre, a fitness studio, an underground car park with free parking spaces for cars and an extra garage for bicycles, including showers. For a balanced diet, there is a canteen as well as a café and a deli with fruit and healthy snacks, which are also open to the public.

Application process

Step 1 - Online application

Step 1

Online application

Have you found a suitable job posting? Then you can apply online right here. The application process is very simple and only takes a few minutes. Once we have received your application successfully, you will receive confirmation by e-mail immediately afterwards.

Your questions. Our answers.

Do you have any questions?

Do you have any questions?

Our recruiting team will be happy to assist you via email. Please submit your application exclusively through our online portal – unfortunately, we cannot consider applications sent by email. As long as the position is listed on our careers page, we look forward to your interest and application!

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Werkstudent/-In After Sales & Customer Service (w/m/d)