At Genestack we are tackling the underlying computational and scientific challenges of bioinformatics in order to provide researchers with software tools that will streamline the discovery process and drive forward precision medicine, drug development, and bioinformatics research. We are looking for a detail-oriented and proactive Administrative Assistant to support our operations in Spain. In this role, you will manage administrative and HR-related tasks, ensuring smooth daily operations and compliance with Spanish labor laws. Your responsibilities will range from handling employee documentation and payroll support to coordinating business travel, benefits, and financial administration. The ideal candidate is organized, resourceful, and able to multitask in a dynamic international environment. In this role, you will: + Manage employee and company documentation in compliance with the UK and Spanish laws. + Maintain and manage the company's HR and other related systems. + Monitor and manage employee leave (e.g., sick leave, personal days) and maintain proper documentation. + Support the coordination of employee benefits, including health insurance programs. + Support payroll processing. + Organize employee activities such as team-building events, gatherings, and gifts to foster company culture. + Coordinate employee business travel arrangements. + Coordinate IT equipment procurement and allocation for employees. + Assist in financial administration, including invoice processing, reimbursement handling, and liaising with accounting teams. + Help with preparation for conferences and other business events attendance. + Assist with marketing activities like maintaining the company's website and Linkedin profile. We would like you to have: + Bachelor's degree in Business Administration, Finance, or a related field. + Proven experience (1+ years) in an administrative or HR-related role. + Knowledge of Spanish labor laws and regulations, especially regarding employee documentation and payroll. + Ability to manage digital employee records accurately. + Experience in financial administration, including invoice processing and expense tracking. + Strong communication skills, both written and verbal, in English and Spanish. + Ability to coordinate multiple stakeholders, including employees, vendors, and external partners. It would be nice for you to have: + Previous experience in multinational companies or working with distributed teams. + Experience with HRIS. + Experience with payroll software. We offer you: + international team of professionals; + fully paid sick leaves; + onboarding and domain training for newcomers; + flexible work schedule.