
Definition, Specification and Testing Lead (Hybrid)
Job Description
In Defence and security, armed forces, governments and global organizations entrust Thales with helping them achieve and maintain security, tactical superiority and strategic independence in the face of any type of threat. In an increasingly unpredictable world, governments rely on our expertise to protect their citizens and make the world safer, from designing smart sensors and connecting soldiers on the digital battlefield to delivering solutions that protect states, cities and critical infrastructures.
In Spain, Thales Sistemas is specialized in Command and Control systems, Tactical Communications and Modeling and Simulation addressing solutions in the domain of Defense and Security. Thales is the Spanish leader in tactical Land CIS (Communication and Information Systems) covering all the product life cycle (design, development, production, ILS). Based in Leganés, Thales Sistemas employs a highly specialized workforce of more than 100 people, most of them engineers that participate in the following activities:
- Communications and Information Systems (CIS) to support Command function and Decision Making
- Embedded electronics for military aircraft
- Tactical Communications
- Radio Navigation Aids for air traffic
As Definition and IVV Lead, you will have assigned the following main tasks:
- Lead generation of system requirements from customer needs and use cases to allow the proper definition of the products to be developed by the company, including functional and nonfunctional requirements.
- Design and build system architectures based on requirements
- Be in continuous contact with stakeholders and customers
- Prepare technical documentation, demos and training materials
- Participate in integration and acceptance tests
- Specify requirements and coordinate the requirements organization structure with the System Architecture of the products to allow a clarity conception of the definition
- Define and generate the test procedures for the proper verification and validation of the system requirements used to define the products
- Coordinate with customers and commercial team to obtain the basics of the product requirements
- Coordinate with the development teams that will develop the product to clarify the exact scope after the execution of the verification and validation.
- Prepare and review technical documentation (architecture designs, interfaces, integration plans, validation protocols) ensuring traceability and compliance and configuration management.
Education:
- Bachelor’s or master’s degree in engineering, Electronics, Telecommunications, Industrial Engineering or related fields.
- You must have fluent English and Spanish level (C1)
Experience level:
- Minimum of 4 years’ experience in the generation of specifications, execution of validation and direct customer relations.
Competences:
Technical/functional skills:
- Knowledge of user requirements tools as DOORS
- Knowledge of System Architecture tools as Enterprise Architect
- Excellent technical writing skills to express with precision and clarity customer requirements
- Understand the different development methodologies, waterfall and SCRUM.
- Experience in requirements specification, system documentation, and coordination with engineering teams.
- Experience in planning and managing integration and validation testing in lab environments and in field.
- Relevant certifications related to engineering processes
Other (advantage):
- Experience in Defence and Security Projects.
- Experience/Knowledge in defense product definition.
- SCRUM certification
Behavioral skills:
- Technical leadership and results-oriented mindset.
- Cross-functional vision, proactivity, and continuous learning capability.
- Effective communication.
- Problem-solving skills and incident management expertise.
- Ability to work in international and multicultural environments.
- Availability to travel and to represent the company when needed.
You must take into account that you should have (or you should be able to get) the Personal Security Clearance to be able to work on National, NATO or EU defense projects.
What do we offer?
- Flexible working hours.
- Shorter working days on Fridays and during summer.
- Remote-friendly - 2/3 days a week working from home.
- Restaurant allowance and social benefits (health insurance, kindergarten).
Thales is a company committed to equal opportunities between women and men, and for this reason, we work to raise awareness and disseminate information on the subject both internally and externally.
At Thales we provide CAREERS and not only jobs. With Thales employing 80,000 employees in 68 countries our mobility policy enables thousands of employees each year to develop their careers at home and abroad, in their existing areas of expertise or by branching out into new fields. Together we believe that embracing flexibility is a smarter way of working. Great journeys start here, apply now!Optimize Your Resume for This Job
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Job Details
- Category
- Business & Finance
- Employment Type
- Full Time
- Location
- Madrid
- Posted
- Feb 25, 2026, 07:00 PM
- Listed
- Feb 26, 2026, 03:19 PM
About Thales Alenia Space
Part of the growing space industry ecosystem pushing humanity toward interplanetary exploration.
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