Application Support Engineer

Application Support Engineer

IN SHORT

Our team "Offer Management & Digital Channel" is responsible for the sales-related systems in which prospects become customers: CRM, customer portal, product configurator, and our in-house Sales Desk solution. Here, energy sales offers are created, contracts are concluded, and the supply process is initiated. We are looking for an Application Support Engineer (m/f/d) to help shape the future of our digital sales systems with us.

What Will You Do

• Operation and further development Ensure stable operation and further development of the customer portal and the Sales Desk in-house solution.
• Requirements Management & Implementation Capture requirements and implement technical solutions together with the business departments.
• Vendor Management Coordinate external service providers to ensure timely project delivery.
• Agile Work Implement projects in SCRUM and continuously optimize the systems.
• Incident and Service Management Handle inquiries and problems according to ITIL standards.
• Documentation Maintain system documentation in Confluence, Azure DevOps, and LeanIX.

• Degree in Computer Science, Business Informatics, or a comparable qualification
• At least three years of experience operating Java-based web applications with databases (ORACLE, MS SQL)
• Knowledge of cloud technologies, especially Azure, as well as basic knowledge in test management, change, incident, and problem management
• Experience with agile methods such as SCRUM or Kanban
• Analytical thinking, team spirit, and strong communication skills
• Good written and spoken German and English skills (minimum B2)

SEFE is an international energy company anchored in Europe, delivering energy solutions that ensure reliable and affordable supply. Our activities span the entire energy value chain – from origination and trading to sales, transport and storage. With decades of trading expertise and a growing LNG portfolio, SEFE is one of Europe’s leading suppliers to industrial customers, providing more than 200 TWh of gas and power each year. We supply over 50,000 clients, from small businesses to municipalities and multinational organisations. By investing in clean energies, we support our customers on their decarbonisation journey and contribute to the energy transition. SEFE employs over 2,000 people worldwide and is owned by the Federal Government of Germany.

Securing energy – now and for the future.

Our Benefits

We stand for an inclusive environment that fosters diversity and values the development of knowledge and skills. Regardless of position, we offer you a high degree of autonomy and a pleasant atmosphere that encourages innovation and participation. Additional benefits include:

• Flexible working hours with hybrid work options
• Attractive compensation package
• Appealing work environment in a central location
• Team-oriented culture with open feedback
• Company cafeteria offering healthy and diverse food choices
• Job ticket and bike leasing options
• Health and fitness programs
• Company pension scheme
• 30 vacation days plus additional special leave

Apply now

Job Title: Application Support Engineer

Job Country: Germany

Job Location: Kassel, Germany

Posting Start Date: 17/04/2026

Business Function: Information Technology

Contract Type: Permanent