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On-site in Castellón de la Plana·Full-time·Added yesterday (last checked 12 Nov)
Our summary
- Contract
- Full-time
- Spanish
- Expected (ad in Spanish)


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Not a refusal, but not a yes. Worth asking in your first message.
This job advert was originally written in Spanish.
The role
We are a global company, a leader in the development of regenerative infrastructure that generates a positive impact on society. Our workforce, made up of more than 65,000 professionals and present in more than 40 countries across five continents, contributes to our mission of designing a better planet. We are looking for people who want to make a difference, promote sustainable development, and find solutions to the greatest global challenges, including climate change, overpopulation, and water scarcity. Join us in the search for solutions to achieve a sustainable future.
ACCIONA, in its water business, needs to incorporate an Operations Assistant into its IDAM Oropesa, Castellón contract
What you'll do
In direct contact with the Control Operator and, failing that, with the plant management, you will have the following duties and responsibilities:
- Comply with and adhere to the facility's hygiene and sanitary standards, as well as occupational risk prevention policies.
- Ensure compliance with all safety regulations necessary for the tasks to be performed, as well as the mandatory use of required PPE.
- Take readings, fill in and interpret O&M data records, as well as fill in and report daily work reports.
- Collect samples for analysis and parametric measurements in the field or in the laboratory as appropriate.
- Carry out the assigned facility operation tasks.
- Understand the process and act in the face of possible variations regarding normal operation.
- Understand and control the functioning of SCADA (control system).
- Control the operation of the entire facility and supervise the functioning of the plant equipment.
- Assist maintenance personnel when necessary.
- Perform specific maintenance tasks as entrusted to you.
- Carry out minor repairs.
- Perform cleaning and conservation tasks for the facility.
- Sanding and painting tasks
Minimum requirements
No experience required
Intermediate Vocational Training
Work in rotating shifts and under collective agreement conditions
Ability to work in a team
Ability to organize work efficiently.
Will be valued
Experience in the water treatment sector (desalination and purification).
Knowledge of the functioning of mechanical equipment in desalination plants and their most frequent breakdowns, particularly regarding pumps.
Electromechanical and/or electrical knowledge or training.
Experience in work with pipes or conduits and, in particular, in repairs with GRP.
Hiring process
Apply
HR contact · With HR team
Online tests
Online test
The online tests begin: language, reasoning and behavioural.
Competency interview
With HR team
If you pass the tests, HR will contact you to carry out a competency-based interview.
Interview panel
With a panel of key people
If you meet the competencies required for the role, a panel of interviews begins with various key people, who make the final decision by consensus.
Offer · With HR team
- Our HR professionals will support you at every stage of the process and, if they consider that you are not the most suitable candidate for that particular role, will let you know at any point.
- Candidates may be interviewed not only by HR managers but also by department managers and/or team members.
- To apply, you must first register in the database by completing your profile in the Job offers section.
About ACCIONA
ACCIONA is a global leader in sustainable infrastructure, renewable energy, and water management. The company designs and builds roads, bridges, railways, and buildings, develops and operates wind, solar, and hydroelectric plants, and provides water treatment and desalination services. With operations in over 40 countries and a workforce of more than 40,000 employees, ACCIONA is committed to contributing to the fight against climate change through its 'Plan for Sustainable Development 2025'.
- Industry
- Infrastructure and Energy
- Founded
- 1997
- Employees
- 40,000
- Headquarters
- Madrid, Spain
- In Spain
- Madrid, Barcelona, Valencia and 2 more
Good to know if you are moving
- ACCIONA is headquartered in Madrid, Spain, and has a strong presence across the country, with offices and project sites in various regions.
- The company offers numerous internship opportunities (becas) in Spain, which can be a great entry point for international students and recent graduates.
- ACCIONA operates in over 40 countries, providing opportunities for international mobility and career growth.
- The company is committed to sustainability and innovation, making it an attractive employer for professionals interested in green technologies and infrastructure.
- Spanish language skills are often required for roles in Spain, but international projects may offer opportunities for English-speaking professionals.
In their own words
Additional information
We are a company that values diversity as a source of talent and, for this reason, we work to promote an inclusive environment in which respect, belonging, and commitment are fostered so that all people can participate with equal opportunities. We invite all people to apply, regardless of origin, circumstances, background, or condition. ACCIONA has received the Top Employer certification for 2021, 2022, 2023, 2024, and 2025, which recognizes the Company as one of the best places to work in Spain.
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