Administration Assistant
Sonnedix · Madrid, Community of Madrid, Spain
- On site
- Full-time
- $55,000 / year
- Madrid, Community of Madrid, Spain
Job highlights
- Support employees and managers with administrative services.
- Facilitate new employee onboarding and integration processes.
- Manage office operations, including visitor and event coordination.
- Handle financial administration like invoices and expenses.
- Utilize tech platforms for efficient office management.
About the role
About the Role
Sonnedix is seeking a detail-oriented Administrative Assistant to provide high-quality administrative and office services to employees and managers. This role is crucial for onboarding new employees, including coordinating welcome kits, access provisions, and inductions. You will ensure new joiners have a clear understanding of the company, office procedures, internal tools, and workplace policies. As a daily point of contact, you will address administrative and office-related queries and support operational needs in collaboration with internal teams.
Key Responsibilities
The role contributes to efficient office operations through visitor and event coordination, invoice administration, and expense and purchasing management. This includes maintaining accurate documentation, supporting ESG traceability, managing internal platforms, and coordinating national and international logistics. You will work closely with IT and facilities to ensure office systems and services are supported and operational issues are resolved, while also assisting the Office Manager as needed.
Desirable Skills
- Organisation & prioritisation: Ability to manage multiple requests, deadlines, and stakeholders with a structured approach.
- Service mindset & communication: Professional, approachable, and responsive to employees, managers, visitors, and suppliers.
- Attention to detail & reliability: Accuracy in administrative work (invoices, documentation, follow-up) and end-to-end task ownership.
- Confidentiality & professionalism: Trusted handling of sensitive information and sound judgment.
- Operational & financial administration: Confidence with invoice processing, expense follow-up, purchase orders, and document traceability.
- Tech fluency: Comfortable using workplace platforms and learning new tools quickly (e.g., SharePoint, Smartsheet, SAP, expense and booking tools).
We use English as our business language; please submit your CV in English.
At Sonnedix, we are building a future-ready team with AI literacy, focusing on leveraging digital and AI tools to enhance efficiency, innovation, and productivity across all roles.
We encourage qualified candidates to apply even if they don't meet every single requirement. We value diverse skills, perspectives, and experiences.
About Us
Sonnedix is an international Renewable Energy Producer (REP) with over a decade of sustainable growth. We develop, build, and operate renewable energy projects for the long-term, aiming to provide green, affordable electricity and act as a responsible social citizen.
What We Offer
- Career development opportunities within a growing company.
- An inclusive, international working culture with a diverse team.
- Hybrid working, generous annual leave, and unpaid leave options.
- Family-friendly policies including generous paid parental leave.
- Ability to work from elsewhere for up to six weeks annually.
- Summer working hours.
- Comprehensive wellbeing support (Financial, Social, Mental & Physical).
- The Sonnedix Academy: extensive training and development opportunities.
- Dedicated learning paths for AI and digital tools.
- Fantastic office environments and social events.
- Employee-led One Team Network groups.
- Many other local benefits.
Key skills/competency
- Administrative Support
- Office Management
- Onboarding
- Invoice Processing
- Expense Management
- Document Management
- Logistics Coordination
- Tech Fluency
- Communication Skills
- Attention to Detail
Skills & topics
- Administrative Assistant
- Office Administration
- Onboarding
- Operations Support
- Receptionist
- Executive Assistant
- Facilities Management
- Document Control
- Event Coordination
- Customer Service
How to get hired
- Tailor your resume: Highlight administrative, organizational, and tech fluency skills relevant to the Administrative Assistant role at Sonnedix.
- Showcase your experience: Emphasize your ability to manage multiple tasks, attention to detail, and strong communication skills.
- Demonstrate tech proficiency: Mention your experience with workplace platforms like SharePoint, Smartsheet, or SAP.
- Prepare for interviews: Be ready to discuss your problem-solving approach and how you ensure confidentiality and professionalism.
Technical preparation
Behavioral questions
Frequently asked questions
- What are the key responsibilities for an Administrative Assistant at Sonnedix?
- The Administrative Assistant at Sonnedix is responsible for supporting employees and managers with administrative tasks, coordinating new employee onboarding, managing office operations, handling financial administration such as invoices and expenses, and coordinating logistics. They also work closely with IT and facilities to ensure smooth office operations.
- What kind of skills are desirable for the Administrative Assistant position at Sonnedix?
- Desirable skills include strong organization and prioritization, a service mindset with excellent communication, high attention to detail and reliability, professionalism and confidentiality, confidence in operational and financial administration, and tech fluency with workplace platforms.
- Does Sonnedix encourage applications from candidates who don't meet all qualifications for the Administrative Assistant role?
- Yes, Sonnedix encourages applications from candidates who are excited about the role but may not meet every single qualification. They value diverse skills, perspectives, and experiences.
- What is the work environment like at Sonnedix for an Administrative Assistant?
- Sonnedix offers an inclusive, international working culture with a diverse team. They provide a hybrid working model, opportunities for career development, and a commitment to wellbeing and work-life balance, including family-friendly policies and 'work from elsewhere' options.
- How does Sonnedix support the professional development of an Administrative Assistant?
- Sonnedix supports professional development through the Sonnedix Academy, offering a range of training, dedicated learning paths for AI and digital tools, mentorship, and opportunities for growth as the company expands.