C | C++ Developer (Distributed Systems)

Inetum2

Aveiro, Aveiro District, Portugal Hybrid permanent

Posted: February 3, 2026

Job Description

Inetum is a global leader in IT services, dedicated to providing innovative solutions to our clients. We are committed to fostering a dynamic, inclusive workplace that values diversity, where creativity and collaboration thrive. We operate in 19 countries with more than 28,000 employees worldwide.

If you are looking for a dynamic, innovative, and technology-driven company, Inetum is the place for you! Come be Inetum!

We are looking for a Software Engineer to join a team responsible for developing the control software for switches and routers integrated into our client OLT product line. In this role, you will contribute to the design and implementation of protocol control stacks across L2, L3, and MPLS technologies.

You will work primarily with C in a Linux environment, developing high‑performance, reliable, and scalable components for distributed systems used in next‑generation optical access networks.

Key Responsibilities

• Design and develop C-based software modules for switch/router control within OLT systems.
• Implement and maintain control stacks for L2/L3/MPLS protocols.
• Collaborate with cross-functional engineering teams to ensure seamless integration within distributed architectures.
• Troubleshoot, debug, and optimize system performance.
• Contribute to technical documentation and continuous improvement of development processes.

• Solid programming skills in C, demonstrated through 3+ years of experience in development and a strong academic background.
• Experience working in Linux environments.
• Understanding of distributed systems concepts.
• Knowledge of scripting using Bash.
• Background in networking, including switching and routing fundamentals.
• Experience with PON (Passive Optical Network) technologies.
• Knowledge of C++.

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