Secure Communications Engineer - Alcobendas, Hybrid

Indra·Alcobendas, Spain

What they offer

  • Hybrid

    Office and home days — the ad has the split.

What they ask for

  • Have the right to work in Spain

    Indra doesn't mention sponsorship in the ad.

  • Speak native-level Spanish

    Listed as a requirement in the ad.

  • Be near Alcobendas for hybrid days

    No relocation package mentioned.

  • Have 2+ years of experience

    Mid-level role.

Pulled from the advert automatically — the full ad is what counts.

Added 3 days ago
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About the role

At Indra Group, we protect what matters most.

We lead the development of cutting-edge technological solutions that strengthen national and international security.

💻 Join our Secure Communications team!

We are looking for a Secure Communications Engineer to join strategic projects where critical communications and encryption solutions are designed, implemented, and validated. You will be part of a highly specialized team within the Defense area.

What you'll do

💡 What will you do?

• Analyze, design, and review secure communications configurations (TLS, VPN, IPsec, mTLS).

• Perform advanced network troubleshooting (tcpdump, Wireshark, routing, NAT, DNS, MTU...).

• Define and evaluate threat models: MITM, replay, spoofing, hijacking, etc.

• Manage the implementation of applied cryptography (AES-GCM, ChaCha20-Poly1305, RSA/ECDSA/Ed25519, ECDHE...).

• Administer and review certificates: renewal, revocation, OCSP/CRL, and trust chains.

• Prepare technical documentation: trust diagrams, security decisions, risks, and mitigations.

• Collaborate with network, systems, and development teams to ensure the correct integration of secure solutions.

• Identify poor practices and propose improvements based on technical audits.

What you'll get

💼 What we offer

Stability and Future 🏢✨: Long-term projects in the Defense sector, with more than 50,000 professionals at Indra.

Innovative Projects 🚀: You will work on cutting-edge solutions with national and international impact.

Close Environment 🤝: Direct communication, collaborative teams, and an open work atmosphere.

Autonomy and Flexibility ⏳: Real work-life balance within the hybrid model (40% on-site annually).

Personalized Career Plan 📈: Professional growth adapted to you.

Continuous Training 📚: Access to Open University and Udemy for Business (more than 6,000 courses).

Employee Benefits 🎁: Discounts at gyms, retail, restaurants, leisure...

Competitive Compensation 💰 and flexible benefit plans.

Hiring process

  • Profile review 🔍
  • First contact (5-10 min) 📞
  • Interview with Talent Acquisition 🤝
  • Technical interview with the team 🤝
  • Offer and welcome 🎉
  • Approximate process duration: 2 weeks.

Essential requirements

🎯 What are we looking for?

Don't worry if you don't meet 100% of the requirements.

Go ahead and apply! We want to meet you and see what you can bring 🚀

✅ Degree in Computer Engineering, Telecommunications, or related fields.

✅ Minimum 2 years of experience in secure communications and applied cryptography.

✅ Solid knowledge of network fundamentals: TCP/IP, basic routing, NAT, DNS, MTU.

✅ Experience with diagnostic tools (tcpdump/Wireshark).

✅ Knowledge of segmentation, firewalls, proxies, and load balancers.

✅ Strong practical and theoretical command of symmetric/asymmetric cryptography and hashing.

✅ Experience with TLS 1.2/1.3, mTLS, IPsec (conceptual), VPNs (WireGuard / OpenVPN).

✅ Certificate management and knowledge of PKI and key lifecycle.

✅ Ability to explain cryptographic risks clearly and understandably.

✅ Availability to work in a hybrid model, 40% on-site in Alcobendas.

Additional information

Our commitment is to promote work environments where people are treated with respect and dignity, fostering the professional development of staff and ensuring equal opportunities in their selection, training, and promotion, offering a work environment free of any discrimination based on gender, age, disability, sexual orientation, gender identity or expression, religion, ethnicity, marital status, or any other personal or social circumstance.

¡INDRA is a Top Employer 2025 certified company! Join a company certified as one of the best employers in Spain, thanks to our comprehensive HR management and the conditions we offer our professionals.

You'll most likely need Spanish to apply.This job was automatically translated to English, .

About the company

Indra

Indra

IT and Defense

View company profile
Spanish company
57000 employees