Support Office & Contract Administrator

Posting Start Date: 12 Jun 2026

Location: Darmstadt, DE

Company: Serco Plc

Job Introduction

Serco Services GmbH has established itself as a strong service provider in the German market, delivering high-quality engineering, technical, and management services across a variety of sectors. From its strategic position in Darmstadt, Serco supports critical operations for space, satellite, and technology projects, providing expertise in ground systems management, data processing, and mission logistics. Serco’s comprehensive service portfolio, backed by decades of experience, ensures operational excellence and efficiency, making it a trusted partner for both commercial and governmental clients in Germany. This strong foundation allows Serco Services GmbH to drive innovation and deliver value across the industry.

We’re looking for a Support Office & Contract Administration Assistant to reinforce the team in our Germany office.

Key Responsibilities

Reporting to the German Contract Director, the appointed candidate will undertake the following:

  • Contract administration: 
    • preparation of financial data for customers
    • processing 'Confirmations & Invoices' in customer's SAP system
    • preparation/consolidation and tracking of customer documents, such as financial reports, minutes of meetings, timesheet (etc.)
    • management / processing of timesheets
    • managing / coordinating customer RfOs
    • tracking and follow-up on governance requirements (i.e. leave booking, Serco Essentials training, training plan)
    • BERs, overtime request handling
  • Invoice preparation and handling:
    • preparation of sales invoices (using SOUT) and credit memos (in SAP)
    • sending sales invoices out to customers (email attachments or in customer system)
    • support RTR during month end un-billed revenue preparations
  • Bid support (populating job specs for recruitment etc.)
  • General support of the daily contract management activities in Germany
  • General office communication and company representation
  • Organisation and administration of the reception area and office, including office purchase management
  • Reception and care of our guests and customers
  • Purchase management including quality assessments, expense tracking and reporting and raising purchase orders for stationery and hardware’s
  • Ordering and administration of mobile phones
  • Administration of company cars
  • Handling and logging incoming and outgoing correspondence, e.g. post, invoices, delivery notes
  • Uploading documents to Docusign

Skills

The ideal candidate shall have the following experience and skills:

  • The position requires a proactive person with excellent organizational skills, a meticulous attention to detail, and a hands-on mentality.
  • As the position is working with the German management team, being a good team player is essential.
  • Good communication skills are essential.
  • Computer literacy and good MS Excel and Word (Microsoft 365) skills are required for the position.
  • Experience with SAP a plus, as well as a good general understanding of company finance/commercial activities.
  • Fluency in German and English is a prerequisite for the position.

Package Description

  • Hybrid working model for flexibility.
  • 30% discount on the Deutschland ticket for easy travel.
  • Subsidised Wellpass – access to 12,500+ fitness and wellness options across Germany.
  • Pension and health schemes.
  • Corporate Benefits discounts.
  • 30 days of holiday.