Office Manager and Executive Assistant (m/f/d), Part-Time (20h/week)

PFASuiki is developing advanced electrochemical oxidation technology to completely destroy PFAS ("forever chemicals") directly at the source. We operate in a high-growth, regulation-driven market where our customers are increasingly under pressure to find solutions for persistent pollutants. If you are looking for diverse business challenges and enjoy a hands-on approach, you have come to the right place!

We are looking for a highly organized, tech-savvy, and hands-on professional to join PFASuiki on a part-time basis (20 hours/week). Reporting directly to the CEO, you will be the backbone of our Oberhaching office, supporting the leadership team and ensuring smooth daily operations. This is an on-site role in Oberhaching, though the exact distribution of your days and hours can be arranged flexibly. Your daily tasks will involve executive support, preparatory accounting, preparing investor presentations, maintaining business reports, and practical office management duties like ensuring there is always milk in the fridge.

Your Responsibilities

• Office Management and IT Tools: Manage the day-to-day office operations in Oberhaching, including ordering office supplies, milk, and snacks. Manage and administrate our internal software tools.
• Executive Assistance and Travel: Manage travel arrangements, expenses, and logistics for the executive team. Organize and prepare materials for board meetings, investor presentations, and client visits.
• Finance and Accounting Support: Handle preparatory accounting tasks, including uploading and processing invoices, managing expense reports, organizing financial documentation, and coordinating with our external tax advisor.
• Data and Reporting: Assist with tracking business and operational metrics by updating and maintaining existing management reports and dashboards.
• HR Support: Assist with HR activities and back-office support, including the onboarding of new team members.
• General Administration: Maintain confidential company contracts and coordinate internal communication to promote a seamless team workflow.

Your Profile

• Experience: At least 3 years of proven experience as an Administrative Assistant, Executive Assistant, or in a similar Office Management role.
• Languages: Excellent written and spoken German and English.
• Tech-Savvy: Strong proficiency in Microsoft Office Suite and/or Google Workspace, with a knack for learning new software systems quickly.
• Finance Basics: A solid foundational understanding of accounting processes and financial documentation.
• Working Style: You are a proactive problem solver who anticipates needs before they escalate. You possess outstanding organizational skills with the ability to juggle multiple tasks and prioritize effectively.

Nice-to-Haves

• Previous experience working in a fast-paced tech startup or consulting environment.
• Experience with business operations tools, including HR, finance, benefits and other SaaS platforms (e.g. Factorial, Agicap, Probonio).
• Experience coordinating complex, international travel.
• Familiarity with accounting software, ideally DATEV.
• Experience with CRM systems and project management tools.
• Strong customer focus and excellent interpersonal skills.

What We Offer

• A mission-driven environment tackling one of the world’s most urgent environmental challenges.
• Flexibility in structuring your 20-hour workweek on-site.
• Competitive compensation, transport allowance, lunch subsidies and team events.

Join our mission! If you are a passionate Office Manager and Executive Assistant with the drive to make "forever chemicals" a problem of the past, we want to hear from you.