Finance & Administrative Manager

Finance & Administrative Manager

Location:

Düsseldorf (Hybrid) Employment Type:

Part-Time (15–25 hours per week) Start Date:

As soon as possible

About Us

We are a

defense technology startup based in Berlin , building the

next generation defense layer against aerial threats . Our team develops mission-critical systems that combine hardware, software, and sensing to operate reliably in complex real-world environments.

As an early-stage company, we work in

stealth mode

and place a strong emphasis on engineering rigor, ownership, and clean operational structures.

Role Overview

We are seeking a

Finance & Administrative Manager (Part-Time)

to take ownership of our

bookkeeping, financial administration, and selected executive and HR-related administrative processes .

This is a

high-trust role

working directly with the founders and external tax advisors. You will ensure that our financial processes are structured, compliant, transparent, and scalable as the company grows.

The position requires a

high level of precision, discretion, and reliability , with a strong focus on clean documentation, process stability, and financial clarity.

Key Responsibilities

Preparatory bookkeeping (accounts payable and receivable) Invoice creation, invoice review, and payment processing Expense management and travel reimbursement coordination Digital document and receipt management Coordination with external tax advisors and payroll providers Preparation of monthly financial overviews and reporting summaries Maintenance and continuous improvement of internal financial processes Administrative support for the founders (e.g., scheduling, travel coordination, document preparation) HR-related administrative support (contract administration, personnel documentation, payroll coordination)

Required Qualifications

Completed commercial training or comparable qualification Several years of experience in

bookkeeping, finance, or back-office roles Experience with

DATEV or comparable accounting software Strong understanding of financial documentation standards and administrative processes High level of accuracy, reliability, and discretion Structured, independent, and solution-oriented working style Fluency in German; English proficiency is a plus

Preferred Qualifications

Experience working in a

growing company or technology environment Familiarity with HR administration and payroll coordination Experience setting up or improving internal financial processes Basic understanding of compliance and documentation requirements in regulated industries

What We Offer

Competitive salary

(pro-rated for part-time) Hybrid work model Dynamic and flexible work schedule Extreme growth opportunity

in a fast-scaling startup

Who You Are

Diligent and precise:

You work with a high degree of accuracy and care, especially when handling financial data Reliable and trustworthy:

You understand the sensitivity of financial and personnel information and handle it with discretion Structured and organized:

You create clarity through clean documentation and well-maintained processes Financially disciplined:

You value transparency, compliance, and traceability in all financial matters Proactive and responsible:

You anticipate administrative needs and ensure deadlines are met without constant oversight Calm and dependable:

You bring stability and order to a growing organization