COMSA Corporación is a leading Spanish group in the infrastructure and engineering sector with over 130 years of history. The company specializes in large-scale construction, railway infrastructure, industrial engineering, and environmental services, operating as one of the most significant unlisted players in the Spanish market with a global presence spanning more than 20 countries.

Headquartered in Barcelona, COMSA maintains a robust network of offices and projects throughout Spain, including major hubs in Madrid. For international professionals, the company offers opportunities in high-tech engineering and project management, often involving cross-border collaboration and a focus on innovation and sustainability in complex infrastructure developments.

Founded in 1891 in Reus, COMSA began as a railway construction specialist. Over the century, it expanded into general construction and industrial engineering, merging with EMTE in 2009 to consolidate its position as a global infrastructure leader.

Medium Voltage Technicians – Transformation Centers and Transformers

COMSA Corporación

This job was originally posted in Spanish and automatically translated to English. You'll most likely need Spanish to apply.

Job Description

🚆 There are projects that are built.

And others that leave a mark.

At COMSA Corporación, we have been part of projects that transform reality for more than 135 years: infrastructure, engineering, and services that are present in people's daily lives.

We are more than 6,000 professionals united by the same way of doing things:

with quality, commitment, and a vision for the future.

But what truly defines us goes beyond that...

👉 how we work

👉 how we collaborate

👉 and with whom we do it

Behind every project are people who get involved, who provide judgment, and who know that details make the difference.

That is our way of moving forward. If it matches yours, we would be delighted to meet you.

What are we looking for?

We want to add to the team MEDIUM VOLTAGE TECHNICIANS - TRANSFORMATION CENTERS AND TRANSFORMERS, whose mission will be to execute medium voltage works in private customer installations, guaranteeing safety, technical quality, and regulatory compliance, with a special focus on the replacement and commissioning of transformation centers and transformers.

What will you do in your day-to-day?

Perform the dismantling, replacement, assembly, and commissioning of medium voltage transformers.
Execute preventive and corrective maintenance work in private customer installations and transformation centers.
Perform electrical tests, verifications, and maneuvers, ensuring compliance with safety procedures and current regulations.
Coordinate on-site actions with customers, suppliers, and internal teams, preparing the corresponding technical documentation.

You are the ideal person if you bring....

Education related to CFGS / CFGM in Electricity
Driver's license.
Availability to travel

What will you find at COMSA?

🧩 A close-knit team, where knowledge is shared and learning happens every day

📈 Continuous training and real growth opportunities

💼 Competitive compensation and a flexible compensation plan

⏰ Work-life balance measures

Shall we take the next step?

👉 We want to get to know you. Apply and let's start building together.

At COMSA Corporación, we promote diverse, inclusive, and equitable environments, where talent is valued without barriers or labels. We commit to equal opportunities, encourage the participation of women in areas with lower representation, and guarantee objective and fair selection processes.

View original advert (Spanish)

🚆 Hay proyectos que se construyen.

Y otros que dejan huella.

En COMSA Corporación llevamos más de 135 años formando parte de proyectos que transforman la realidad: infraestructuras, ingeniería y servicios que están presentes en el día a día de las personas.

Somos más de 6.000 profesionales unidos por una misma forma de hacer las cosas:

con calidad, compromiso y visión de futuro.

Pero lo que realmente nos define va más allá...

👉 cómo trabajamos

👉 cómo colaboramos

👉 y con quién lo hacemos

Detrás de cada proyecto hay personas que se implican, que aportan criterio y que saben que los detalles marcan la diferencia.

Esa es nuestra forma de avanzar. Si encaja con la tuya, estaremos encantados de conocerte.

¿Qué buscamos?

Queremos sumar al equipo OFICIALES DE MEDIA TENSIÓN - CENTROS DE TRANSFORMACIÓN Y TRANSFORMADORES cuya misión será Ejecutar trabajos de media tensión en instalaciones de clientes particulares, garantizando la seguridad, la calidad técnica y el cumplimiento normativo, con especial foco en la sustitución y puesta en servicio de centros de transformación y transformadores.

¿Qué harás en tu día a día?

Realizar el desmontaje, sustitución, montaje y puesta en marcha de transformadores de media tensión.
Ejecutar trabajos de mantenimiento preventivo y correctivo en instalaciones y centros de transformación de clientes particulares.
Realizar pruebas, verificaciones y maniobras eléctricas, asegurando el cumplimiento de los procedimientos de seguridad y la normativa vigente.
Coordinar las actuaciones en obra con clientes, proveedores y equipos internos, elaborando la documentación técnica correspondiente.

Eres la persona ideal si aportas....

Formación en relación a CFGS / CFGM en Electricidad
Carné de conducir.
Disponibilidad para viajar

¿Qué encontrarás en COMSA?

🧩 Un equipo cercano, donde se comparte conocimiento y se aprende cada día

📈 Formación continua y oportunidades reales de crecimiento

💼 Compensación competitiva y plan de compensación flexible

⏰ Medidas de conciliación

¿Damos el siguiente paso?

👉 Queremos conocerte. Inscríbete y empecemos a COMStruir juntos/as.

En COMSA Corporación promovemos entornos diversos, inclusivos y equitativos, donde el talento se valora sin barreras ni etiquetas. Apostamos por la igualdad de oportunidades, fomentamos la participación de mujeres en ámbitos con menor representación y garantizamos procesos de selección objetivos y justos.