Secure Software Engineer (Python & C++)

Job Title: Secure Software Engineer (Python & C++)

Location: Vigo, Spain

Industry: Defense / Advanced Technologies

Work Regime: Full-time & Hybrid

• Willingness to travel to Paris occasionally



We are currently seeking a Software Developer with over 3 years of experience in Python, C++, and Cybersecurity to join a major international defense initiative focused on developing cutting-edge technology solutions.

Responsibilities and Tasks:

• Develop and maintain software applications using Python and C++, with a strong foundation in secure communications:
• Integrity, authentication, and non-repudiation.
• Threat models: MITM, replay, spoofing, flooding, etc., and secure protocols: TLS, IPsec, DTLS, MACsec, etc.
• Applied cryptography: symmetric/asymmetric keys, X.509 certificates, hash functions, HMAC, etc.
• Key management: distribution, revocation, expiration (e.g., STANAG 4774/4778).
• Apply security principles throughout the entire software development lifecycle.
• Collaborate with multidisciplinary teams to deliver high-impact solutions in the defense sector.
• Ensure the developed software meets the highest standards of security and reliability.
• Work in agile environments and participate in code reviews.
  

Mandatory Requirements:

• 3+ years of experience with Python and C++.
• Experience in cybersecurity and secure software development practices (SDLC).
• Knowledge of frameworks such as Django or Flask for Python, and libraries/environments in C++.
• Proficiency in advanced cybersecurity techniques (authentication, authorization, encryption, etc.).
• High level of English (spoken and written).
• Ability to collaborate effectively in multidisciplinary and international teams.
• Preferably based in Northern Portugal to facilitate in-person collaboration.
• Willingness to travel to Paris to work with international teams and attend key meetings.

What we offer:

• Direct contract with our final client.
• Involvement in high-impact international defense projects.
• Hybrid working model with flexible hours.
• Opportunities for professional growth and continuous learning.
• Travel to Paris to interact with teams and attend important defense sector meetings.
• Additional benefits: health insurance, extra leave days, training programs, etc.