Location: Madrid, MD, ES Professional Profile: Required Experience: More than 2 years of experience Work Model: Hybrid Senior C++ Developer (SIP, RTP, and VoIP) – Hybrid. **Indra Group, Tech for the future.** We drive impactful digital transformation through advanced technology, sector-specific expertise, and global talent. This is the challenge at INDRA GROUP—talent drives transformation. Therefore, we are seeking a C++ Developer with experience to participate in a strategic aerospace and defense sector project where technology is essential to ensuring security and innovation. About the team and its impact As a C++ Developer at INDRA GROUP, you will join a technical team specialized in developing software for critical systems. You will contribute to a high-impact project in the aerospace/defense domain, working with technologies such as C++, Python, and Linux, and collaborating with multidisciplinary teams to design robust, secure solutions aligned with industry standards. Join our team! You will become part of the team that powers change—transforming society and improving people’s lives. That is why we develop innovative solutions offering comprehensive proposals for architecture modernization and application management. We accelerate the evolution of key sectors and connect talent, technology, and business to generate real impact. At MINSAIT, we build a better future for everyone—a sustainable, secure, and connected future. Human-centered and challenging environment * Technical team of experts in developing complex systems. * Culture of innovation, continuous improvement, and collaboration. * Projects in strategic sectors such as defense, aerospace, and telecommunications. Work-life balance and flexibility * **Hybrid work model based in Torrejón de Ardoz, with 40% remote work.** * Flexible working hours adapted to your needs. * 32 working days of annual leave. * Intensive working schedule every Friday and during summer. ‍ Professional development * Personalized career plans. * Continuous training via platforms such as Udemy. * Networking opportunities with technical and HR teams. Competitive conditions * Indefinite-term contract and salary commensurate with your profile. * Life insurance and flexible compensation (meal card, childcare, transportation, private health insurance). Holistic wellbeing * Access to gym networks, medical check-ups, on-site physiotherapy, health workshops, and telemedicine. ✅ What we’re looking for in you * More than 2 years of C++ programming experience. * Advanced knowledge of C/C++. * Experience with version control systems (Git, Bitbucket). * Knowledge of Python, shell scripting, and bash. * Experience working in Linux environments. * **Experience in SIP, RTP, and VoIP protocols is highly desirable.** • Degree in Technical or Higher Engineering in Computer Science or Telecommunications. • Familiarity with tools such as DOORS, Change, and Jira. * Analytical ability, technical documentation skills, and incident resolution capability. * Proactivity, effective communication, and results orientation. **INDRA GROUP, technology for a more human future.** *Our commitment is to foster workplaces where individuals are treated with respect and dignity, supporting professional development of staff and guaranteeing equal opportunities in recruitment, training, and promotion—providing a work environment free from any discrimination based on gender, age, disability, sexual orientation, gender identity or expression, religion, ethnicity, marital status, or any other personal or social circumstance.*