Office & Management Support

H2site
H2site

Customer Service

Loiu, Bizkaia, Spain

Posted on Sep 30, 2026

Office & Management Support

Location: Loiu

Introduction

About H2SITE:

H2SITE is a technological company that uses advanced membrane reactor technology to solve the hydrogen transport problem by converting hydrogen carriers with well-known supply chains and separating hydrogen gas blends into fuel cell purity hydrogen.

Founded in 2020 in Bilbao, Spain, it emerged as a spin-off from two renowned research and development centers in collaboration with ENGIE New Ventures as its first industrial investor: TECNALIA, the largest private research center in Southern Europe specializing in membranes and material sciences among other fields, and the Eindhoven University of Technology (TUe), a reference in process intensification. Headquartered in Loiu, the company employs over 60 team members in its unique membrane production facilities located in Loiu, Spain.

We have built a membrane factory that is unique in the world, where we manufacture our units that provide solutions for the hydrogen transport problem. For our development we rely on the local industrial ecosystem and top-level international investors.

We have developed a technology of membrane reactors for the separation and production of hydrogen in situ from different feedstocks, such as ammonia, methanol, formic acid, syngas from waste…

Offer

Mission:

As an Office & Management Support, you will be responsible for ensuring the proper functioning of the company’s office. Among his/her responsibilities is the management of maintenance, suppliers, material and other administrative tasks, ensuring the optimal internal functioning of the office.

Features

Functions:

1. Office Operations & Protocol Development: Establishing, implementing, and maintaining office procedures and efficiency standards to ensure a high-level professional environment.

2. Facility & Maintenance Oversight: Coordinating cleaning services (Clyma), gardening, and laundry; managing repairs, and ensuring general order in offices, plant, and common areas.

3. Internal Policy Compliance: Ensuring adherence to company regulations and fostering a positive workplace culture through organized internal communications.

4. Events coordination: Organize and co-ordinate employee events, business meetings, executive meetings and management meetings. Including meeting room bookings, catering, supplies, offsite meeting facilities & equipment and hotel accommodation.

5. Visitor & Access Management: Serving as the primary point of contact for guests and subcontractors, managing registrations via Odoo, and overseeing meeting room logistics.

6. Support: Be responsible for providing comprehensive administrative support to the Management team.

7. Strategic Procurement & Supply Chain: Managing the full lifecycle of purchase orders (PO), inventory control for office/pantry supplies, and corporate apparel (package distribution, and general mailroom operations).

8. Health, Safety & Environment (HSE): Enforcing H&S protocols within the office and factory, and driving workplace improvements to enhance employee safety and comfort.

Professional Experience

What you´ll need to Succeed:

Professional training:

BA or Degree in Public relations and advertising/ Psychology / Business

Admin. / Law / Labor Rel./ or similar.

Professional Experience:

2+ years in similar positions.

Good Excel skills

What we offer

What we Offer:

Participate in a deep tech company: Join a pioneering initiative dedicated to combating climate change and making a real difference in the world through hydrogen.

Culture of innovation: Work in an environment that fosters creativity and innovation, where your ideas and solutions are valued and implemented.

Collaborative and supportive team: Be part of a diverse, talented and welcoming team that values your contribution and encourages growth.

Flexibility and autonomy: Enjoy a flexible work schedule (intensive workday in summer) with the option to telecommute, allowing you to balance your professional and personal life.

Opportunities for professional growth and development: Access to continuous training programs, workshops and resources for professional development, ensuring your constant growth.

Coverflex Card: Includes allowances for meal tickets, transportation and more, giving you the flexibility to manage your daily expenses.

Access to language learning: Get free access to a platform designed to help you improve and master new languages at your own pace.

Location: Loiu