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Octagon Professionals Logo Octagon Professionals · Finance

Assistant Project Controller

United Kingdom, Harwell · Job Posted January 15, 2026
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Job Description

Octagon Professionals is looking for an Assistant Project Controller to support the Program Management Support Office in the Directorate of CSC at ECSAT, in Harwell. The service is based in ESTEC in Noordwijk, the NL and supports remotely the site of ECSAT in UK.

Job Responsibility

  • Timesheet Management: Support timesheet submission, approval, and reporting processes
  • Travel Reimbursement: Assist in processing and verifying travel expense claims
  • Procurement Support: Support the implementation of Purchase Orders, Contracts, and Procure-to-Pay business control processes
  • Service Level Agreements (SLAs): Provide assistance in monitoring and managing SLAs
  • Workforce Database Management: Maintain and update workforce-related databases
  • IT & Software Cost Monitoring: Support cost-checking activities for IT equipment and software purchases
  • Internal Cost Control: Assist in tracking internal costs and financial transactions
  • Audit & Quality Management: Contribute to internal audits and support quality management system audit preparations
  • Program Closure: Prepare documents and ensure compliance for the closure of various programs
  • User Support: Act as a focal point for resolving user issues related to ESA-p, ESA-star, and EROS systems
  • Cost Center Missions: Provide financial and administrative support for cost center activities
  • Dashboard & Reporting Support: Assist in the creation, maintenance, and user training for Power BI dashboards, ensuring technical support and data visualization

Requirements

  • A minimum education – Bachelor’s degree in business subjects
  • Minimum 4 years of relevant work experience
  • Proven experience in a Project Management Support Office (PMSO) environment
  • Experience in a project-oriented environment and supporting procurement processes
  • Proficiency in the use of MS Office Software, Power BI and Business Objects
  • High capacity to interact and communicate with international teams, technical and business domains
  • Service delivery orientation
  • Effective time management
  • Highly proficient in communication in English (written and oral)
  • Ability to act independently, as well as in a team
  • Forward thinking and proactive approach

Nice to have

  • Professional certifications in the management domain are an asset
  • Demonstrated experience in the space sector is an advantage

What we offer

  • Attractive remuneration package
  • Up to 30 vacation days & additional 12 public holidays based on the 40h working week
  • Pension contribution to a tailor-made pension scheme
  • Yearly subscription to the ESTEC gym facilities and a swimming pool
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