(Senior) Project and Subcontracting Buyer
This role manages the full procurement process for technical and installation projects. It offers a competitive salary and a hybrid working model. The position is based in Las Rozas, Spain.
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91,000+ live jobsRemote, Leganés·Full-time·Added 16 days ago (last checked 13 Oct)



The ad rules out sponsorship
The advert says visa sponsorship isn’t available for this role.
This job advert was originally written in Spanish.
Immediate start.
Permanent contract.
Full-time, with a schedule from 9:00 to 18:00 and schedule flexibility.
Remote work
Autonomy and responsibility over a key area of the company.
Possibility of actively participating in the improvement and professionalization of internal processes.
A dynamic environment in an exciting sector with different projects.
Competitive salary based on experience.
Adecco Foundation is collaborating with a major company in the sports events sector for its Inclusion Plan for people with Disabilities
We are looking to hire a person to take responsibility for the integral management of Human Resources and who, additionally, provides support in different administrative tasks of the company.
We are looking for an organized, rigorous, and decisive person with the ability to work autonomously and who is accustomed to working with a high volume of employees
Duties
- Fully manage the payroll cycle for employees.
- Process registrations, cancellations, and modifications in Social Security.
- Manage contracts, substitutions, leaves, vacations, medical leaves, and labor incidents.
- Manage selection, hiring, onboarding, and employee subrogation processes.
- Guarantee compliance with labor regulations and other applicable matters (LOPD, PRL..)
- Keep employee documentation and files up to date.
- Design and coordinate the company's training plans.
- Provide support to the management team in the invoicing of services.
- Perform monitoring and control of outstanding invoices.
- Prepare administrative documentation, certificates, reports, and necessary documentation for clients and potential clients.
- Lead the improvement and automation of internal HR and administration processes
Minimum of 3 years of experience performing these tasks in companies or agencies with a high volume of employees.
Deep knowledge of Spanish labor legislation.
Experience working with Administration tools and platforms such as Sistema RED, SILTRA, Contrat@, Certific@2 or others similar.
Demonstrable experience in the use of payroll management systems and software.
Good command of Excel.
Experience using AI tools such as ChatGPT, Claude, or Gemini in a professional environment.
We value
Experience in service companies with variable or dispersed workforces
geographically.
Experience managing personnel subrogations.
Experience in digitalization, automation, and improvement of administrative processes
People with disabilities: It will be necessary to hold an official Disability Certificate of 33% or higher issued by the competent public body.
1 interview
Adecco España is the Spanish subsidiary of The Adecco Group, the world's largest staffing and recruitment company. Headquartered in Zurich, Switzerland, Adecco operates in over 60 countries and provides workforce solutions across a wide range of industries, including logistics, manufacturing, automotive, healthcare, and technology. In Spain, Adecco is one of the leading employment agencies, connecting thousands of workers with temporary and permanent positions across the country, from warehouse and industrial roles to administrative and customer service positions.
Adecco's Spain presence is extensive, with offices in major cities such as Madrid, Barcelona, Valencia, and Bilbao, among others. The company is known for its strong focus on workforce flexibility and career development, offering training and upskilling opportunities. For international professionals, Adecco Spain provides a gateway to the Spanish job market, with many roles requiring multilingual skills, particularly in customer service and technical positions. The work culture is dynamic and fast-paced, with a strong emphasis on matching candidates to the right opportunities.