SENER is a private engineering and technology group founded in 1956 that operates globally across the Aerospace, Energy, Mobility, and Marine sectors. With a workforce of over 3,000 professionals, the company is renowned for its high-tech solutions, ranging from solar thermal plants and high-speed rail systems to complex satellite components and naval design.

Headquartered in Getxo (near Bilbao), SENER maintains a significant footprint in Spain with major operational centers in Madrid and Barcelona. For international professionals, the company offers a highly technical and multicultural environment where English is frequently used for global projects, making it an attractive destination for specialized engineers and tech experts looking to work on large-scale international infrastructure and defense contracts.

Founded in 1956 by Enrique de Sendagorta Aramburu as a marine engineering firm, SENER was the first Spanish engineering company to be established. It expanded into aerospace in the 1960s and has since grown into a diversified global technology group with a presence on five continents.

For international professionals

Offers opportunities in highly specialized fields such as Aerospace, Defense, and Renewable Energy.
Headquartered in the Basque Country (Getxo), offering a high quality of life and a unique cultural experience outside of the Madrid/Barcelona hubs.
Global project reach often requires English proficiency, facilitating integration for international engineering talent.
Strong focus on innovation and R&D, providing a stimulating environment for technical career growth.
Maintains a significant presence in Madrid (Vicálvaro) and Barcelona, providing flexibility in geographic location within Spain.

This job was published 9 months ago

Senior Back-End SW Developer

SENER

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

Job Description

At Sener, we are looking to incorporate a Senior Back-End SW Developer into our team at our work centers in Madrid (Tres Cantos) or Santander.

We are an engineering company pioneering the design of satellite technology and space exploration equipment. In Defense, we handle the design and production of equipment and systems, including unmanned ones. Our passion for precision has positioned us as trusted collaborators for major space agencies, government bodies, and companies.

What you will do:

Back-end SW development (implementation, verification, and documentation).
Application integration and commissioning. During the implementation phase, you will interact with the client.
Installation and management of different SW development platforms and environments.
Possibility to develop front-end applications.

What we expect from you:

Vocational Training and/or Degree specializing in SW, Computer Science, Telematics, or related fields relevant to the required knowledge.
At least two years of experience in the offered position.
Intermediate level of English.
Experience developing with object-oriented languages, preferably C#; with sockets, both TCP and UDP; developing multi-threaded applications and user interfaces based on Winforms/WPF.
Experience with relational databases, preferably PostgreSQL.
Ability to diagnose, detect, and correct errors.
Teamwork skills: communication, proactivity, and seeking solutions to achieve common goals.
Curiosity and interest in the architecture and development of high-tech systems.

Additionally, the following will be valued:

Having worked with scpi, xml, json.
Experience with the .NET platform, primarily with Web API.
Experience developing distributed applications.
Experience with code repositories using GIT, Gitflow methodology, and Git Submodules.
Knowledge of Design Patterns, Clean Architecture, and Microservices.
Knowledge of other programming languages.

What we offer:

These are some of the benefits you will enjoy at Sener:

Join a multidisciplinary and highly qualified team participating in technologically innovative projects on an international level.
Continue your professional development with us and access a wide range of training (technical training, soft skills, languages, etc.).
Take care of yourself with our physical and emotional well-being program: sports, workshops, medical service, physiotherapy, etc.
Optimize your salary with our flexible remuneration plan (meal cards, private health insurance, nursery vouchers...) and benefit from our life and accident insurance.
Make your way of working flexible! We offer flexible hours, a remote work policy, coworking spaces...
Discount portal for you and a specific onboarding plan for our international employees.
We promote equal opportunities, diversity, and inclusion for all people and are certified as a Family Responsible Entity (efr). Additionally, through the Sener Foundation, we collaborate in activities that encourage the pursuit of knowledge and contribute to the socially responsible development of engineering.

If you identify with this role, we look forward to meeting you... At Sener, we want to go as far as you want to go!

View original advert (Spanish)

En Sener deseamos incorporar en nuestro equipo a Desarrollador/a SW Back-End Alto Nivel en nuestro centro de trabajo de Madrid (Tres Cantos) o Santander.

Somos una compañía de ingeniería pionera en el diseño de tecnología satelital y equipos para la exploración espacial. En Defensa abordamos el diseño y producción de equipos y sistemas, incluidos los no tripulados. Nuestra pasión por la precisión nos ha llevado a situarnos como colaboradores de confianza de las principales agencias espaciales, organismos gubernamentales y empresas.

Qué harás:

Desarrollo de SW back-end (implementación, verificación y documentación).
Integración de aplicaciones y puesta en marcha. En la fase de implantación, interactuarás con el cliente.
Instalación y gestión de las diferentes plataformas y entornos de desarrollo SW.
Posibilidad de desarrollar aplicaciones front-end.

Qué esperamos de ti:

FP y/o Grado con especialidad en SW, Informática, telemática o relacionada con los conocimientos que se requieren.
Al menos dos años de experiencia en la posición ofertada.
Nivel medio de Inglés.
Experiencia desarrollando con lenguajes orientados a objetos, preferiblemente C#; con sockets, tanto TCP como UDP; desarrollando aplicaciones multihilo e interfaces de usuario basadas en Winforms/WPF.
Experiencia con base de datos de tipo relacional, preferiblemente PostgreSQL.
Capacidad para el diagnóstico, detección y corrección de errores.
Dotes para trabajar en equipo: comunicación, proactividad, búsqueda de soluciones para la consecución de objetivos comunes.
Curiosidad e interés hacia la arquitectura y desarrollo de sistemas de alto contenido tecnológico.

Además, se valorará:

Haber trabajado con scpi, xml, json.
Experiencia con la plataforma .NET, fundamentalmente con Web API.
Experiencia desarrollando aplicaciones distribuidas.
Experiencia con repositorios de código usando GIT, metodología Gitflow, Git Submodules.
Conocimientos sobre Patrones de Diseño (Design Patterns), Arquitecturas Limpias (Clean Architecture), Microservicios (Microservices).
Conocimientos en otros lenguajes de programación.

Qué te ofrecemos:

Estos son algunos de los beneficios de los que disfrutarás en Sener:

Intégrate en un equipo multidisciplinar y altamente cualificado participando en proyectos innovadores tecnológicamente a nivel internacional.
Continua tu desarrollo profesional con nosotros y accede a un amplio abanico formativo (formación técnica, en habilidades, idiomas...).
Cuídate con nuestro programa de bienestar físico y emocional: deportes, talleres, servicio médico, fisioterapia, etc.
Optimiza tu salario con nuestro plan retributivo flexible (tarjeta de comida, seguro médico privado, tickets guardería...) y cuenta con nuestro seguro de vida y accidentes.
¡Flexibiliza tu forma de trabajar! Disponemos de horario flexible, política de teletrabajo, espacios de coworking...
Portal de descuentos para ti y plan de acogida específico para nuestros empleados internacionales.
Promovemos la igualdad de oportunidades, diversidad e inclusión de todas las personas y estamos certificados como Entidad Familiarmente Responsable (efr). Además, desde la Fundación Sener colaboramos en actividades que fomentan la búsqueda del conocimiento y contribuyen al desarrollo socialmente responsable de la ingeniería.

Si te sientes identificado/a, te esperamos....¡En Sener queremos llegar tan lejos como quieras llegar tú!