Software Expert (Defense) - Relocation to Spain

¡At Oesia Group, we are growing! We would like to count on you for our next job offer:

We are looking fora Software Expert to join an important Project located in Madrid, Spain in On site job modality.

What are we looking for?

• An/a Software Manager, with at least 10 years of experience.
• Availability to relocate to Spain .
• Work Schedule: M-T: 9H // F: 5,5H

Requirements:

• A degree in Computer Science, Telecommunications or equivalent.
• Over 10 years’ experience in software development in critical environments (preferably embedded).
• Experience leading software development teams from a technical perspective in complex environments.
• Solid experience in software architecture and systems design.
• Experience in development under formal standards and models in critical systems, such as: PECAL 2210 (or equivalent) DO-178B/C
• Experience in managing the full software life cycle (V-Model).
• Technical leadership skills: decision-making, managing uncertainty and results-oriented approach.
• Architectural vision and ability to understand the system at an end-to-end level (with a focus on software).

Nice To Have

• Experience in development in C/C++ and/or other languages in critical environments.
• Experience in embedded systems and RTOS.
• Knowledge of secure software architectures (cybersecurity, hardening, isolation, etc.).
• Experience in lifecycle technical reviews (PDR, CDR, TRR, QR, etc.).
• Experience in requirements management tools (DOORS, Visure) and software traceability.

What will your responsibilities be? As Software Expert , you will be the key figure in defining and developing the system’s software architecture, ensuring its robustness, maintainability and regulatory compliance throughout its entire lifecycle.

You will lead software development for high-security critical systems , in an environment where code quality, traceability and reliability are paramount.

• Provide technical leadership to the software development team.
• Define and evolve the system’s software architecture.
• Make key design decisions (frameworks, partitioning, communications, RTOS, etc.).
• Ensure software quality: design, coding, testing and documentation.
• Coordinate the development, integration and validation of the software with other disciplines (HW, systems, V&V).
• Manage the complete software lifecycle (requirements → design → implementation → verification → certification).
• Ensure compliance with standards and regulations applicable to critical software.
• Participate in technical reviews and audits (PDR, CDR, TRR, etc.).
• Act as the technical point of contact for software matters with clients and assessors.
• Lead the resolution of complex technical problems at the software level.
• Ensure the traceability and consistency of the software with system requirements.
• Promote good development practices (clean code, testing, automation, CI/CD).

What we offer you?

• Work in a multinational company recognized as one of the best companies to work for in 2025, according to Actualidad Económica and Forbes .
• Stable and innovative technological projects for leading national and international clients.
• Career plan: we offer an attractive professional career based on experience and personal potential within a continuously evolving company with solid growth.
• Free access to various training platforms, providing you with a wide multidisciplinary catalog.
• Flexible compensation.
• An equal, diverse company with great Corporate Social Responsibility.
• A positive, healthy, and cooperative work environment. Teamwork is the cornerstone of the company's project successes.

Have you heard of us? With over 3.800 professionals in 20 corporate offices across Spain, Brussels, Latin America, and Asia, it generates quality employment and helps people grow in technical careers.

Grupo Oesía is a Spanish multinational company dedicated to dual-use digital and industrial engineering, developing and implementing projects worldwide.

At Grupo Oesía we believe in diversity and equal opportunities as drivers of innovation, and in inclusion as the foundation for growth. We foster an environment where everyone, without any distinction, can develop their talent and contribute to building a better future.

Inster–Grupo Oesía specializes in the development of dual-use technology for terrestrial, naval, aerial, and space satellite communications; mobility applications in both military and civilian environments; and high-capacity wireless access for telecommunications operators.