Marlex is a prominent Spanish human resources and recruitment firm specializing in temporary staffing, permanent placement, and HR consultancy. With over 25 years of experience, the company operates a network of more than 60 offices across Spain, serving diverse sectors including industrial, logistics, and administrative services.

Headquartered in Catalonia, Marlex has a deep-rooted presence in the Spanish labor market, particularly in the Mediterranean and northern regions. For international professionals, Marlex serves as a gateway to the Spanish job market, frequently recruiting for roles requiring multilingual skills in logistics, export, and back-office operations.

Founded in 1996 in Vic (Barcelona), Marlex began as a local staffing agency and has grown into one of the top HR firms in Spain. It has expanded its service portfolio to include executive search and specialized consulting.

For international professionals

Operates more than 60 physical offices throughout Spain, providing local support in various regions.
Specializes in a wide range of sectors, from industrial and logistics to specialized administrative and financial roles.
Frequently recruits for positions requiring language skills beyond Spanish, such as English or French, for international trade roles.
Offers both temporary and permanent contract opportunities, which can be a starting point for professionals entering the Spanish market.

Software Engineer

Marlex Staffing

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

Job Description

At MARLEX, we are looking for a Software Engineer (EGSE / Test Means)

📍 Tres Cantos (Madrid)

Salary: €38,000 - €42,000

Would you like to work on cutting-edge space projects? We are looking for a Software Engineer to participate in the development of innovative solutions for the electrical verification and testing of space instruments and subsystems.

What will your mission be?

You will be part of an international multidisciplinary team within the test equipment software area (EGSE):

Development and validation of test software (C++, scripts, libraries, drivers, and tools)
Validation of test benches in collaboration with hardware teams
Execution and monitoring of equipment tests in the laboratory or clean room
Application of quality standards and internal processes
Analysis and development based on technical and functional specifications
Preparation of technical documentation and participation in reviews
Participation in international R&D projects
Occasional travel within the EU (0 to 5 times per year)

Requirements

Degree in Telecommunications, Electrical, Aerospace Engineering, Physics, or similar
~3 years of experience in object-oriented C++ development (primarily in a Windows environment)
~2 years working with communication buses and protocols (MIL-STD-1553B, ECSS, SpaceWire, HSSL are valued)
~2 years in automated testing with instrumentation (GPIB, VISA, USB, I2C, SPI, CAN, RS232, RS422)
Experience in software validation, technical reviews, and client relations
Languages: Spanish and professional English

Valued/Desired:

Knowledge of system engineering, firmware, HDL/LabVIEW FPGA
Multithreading, analog/digital data acquisition
Sensors, actuators, telemetry, and telecommands
Python, Git, STL

Languages and technologies

Python
STL / Modern C++
Multithreaded programming

Instrumentation and communications

GPIB
VISA
USB
I2C
SPI
CAN Bus
RS232 / RS422

Specific protocols

MIL-STD-1553B
ECSS
SpaceWire
HSSL

Complementary technical areas

Firmware
HDL / HSL
LabVIEW FPGA
Data acquisition
Actuator and sensor control

View original advert (Spanish)

Desde MARLEX buscamos un Ingeniero/a de Software (EGSE / Test Means)

📍 Tres Cantos (Madrid)

Salario: 38.000€ - 42.000€

¿Te gustaría trabajar en proyectos espaciales de vanguardia? Buscamos Ingeniero/a de Software para participar en el desarrollo de soluciones innovadoras para la verificación y ensayo eléctrico de instrumentos y subsistemas espaciales.

¿Cuál será tu misión?

Formarás parte de un equipo multidisciplinar internacional dentro del área de software de medios de ensayo (EGSE):

Desarrollo y validación de software de test (C++, scripts, librerías, drivers y herramientas)
Validación de bancos de ensayo en colaboración con equipos de hardware
Ejecución y seguimiento de ensayos de equipos en laboratorio o sala limpia
Aplicación de estándares de calidad y procesos internos
Análisis y desarrollo a partir de especificaciones técnicas y funcionales
Elaboración de documentación técnica y participación en revisiones
Participación en proyectos internacionales de I+D
Viajes ocasionales dentro de la UE (de 0 a 5 al año)

Requisitos

Grado en Ingeniería de Telecomunicaciones, Eléctrica, Aeroespacial, Física o similar
~3 años de experiencia en desarrollo C++ orientado a objetos (principalmente en entorno Windows)
~2 años trabajando con buses y protocolos de comunicación (valorable MIL-STD-1553B, ECSS, SpaceWire, HSSL)
~2 años en testing automatizado con instrumentación (GPIB, VISA, USB, I2C, SPI, CAN, RS232, RS422)
Experiencia en validación de software, revisiones técnicas y trato con clientes
Idiomas: castellano e inglés profesional

Valorable: