Your mission
You will join Kreios Space’s Finance team, working closely with the Finance Manager to keep the company’s day-to-day financial and accounting operations running smoothly. You will support payments, accounting records, reconciliations and reporting, while helping maintain accurate and well-organised financial information as the company grows.
You will also support the financial management of publicly funded R&D; projects, including the tracking and justification of project costs and the preparation of supporting documentation.

Own day-to-day finance operations : Support invoice management, expenses, payments, bank reconciliations and accounting documentation.

Support closing and reporting : Work with the Finance Manager on reconciliations, cash monitoring, month-end activities and preparation of financial information.

Support public funding and R&D; projects : Track eligible costs, personnel expenses, invoices and supporting documentation for project reporting and audits.

Keep financial information accurate : Ensure records and supporting documents are complete,



traceable and properly maintained.

Work across the company : Coordinate with People, Procurement, Operations and technical teams to collect information and resolve discrepancies.

Improve how Finance works : Help implement and improve financial processes, controls and tools as Kreios scales.-

Your profile

Degree or vocational qualification in Finance, Accounting, Business Administration, Economics or a related field.

Around 2-3 years of experience in finance, accounting or financial administration.

Good understanding of basic accounting principles and day-to-day financial processes.

Experience with invoices, payments, bank reconciliations, expenses and accounting documentation.

Strong Excel skills and confidence working with financial data.

Good organisational skills, attention to detail and a proactive, resourceful mindset.

Comfortable working in both Spanish and English.

Able to ide

📌 Finance Administrator (Madrid)
🏢 Kreios Space
📍 Madrid