TNPS System Architect Trainee

In an increasingly connected world, the pandemic has highlighted just how essential telecom networks are to keeping society running. The Network Infrastructure group is at the heart of a revolution to connectivity, pushing the boundaries to deliver more and faster network capacity to people worldwide through our ambition, innovation, and technical expertise

Join Optical Networks division, where innovation meets scale in the AI-driven data center era. With the recent acquisition of Infinera, we’ve united two industry leaders to create an optical networking powerhouse—combining cutting-edge technology with proven leadership to redefine the future of connectivity.

Nokia provides leading DWDM transmission systems. A key component of the optical transport system business infrastructure is a planning tool, which accurately models the physics of optical transmission and optimizes the equipment of a DWDM system to implement customer traffic demands on the given fiber infrastructure with minimum cost.

We are looking for passionate Engineers who will become the future domain experts in Optical networking.

• Position: Internship
• Duration: 12 months
• Start date: January, 2026
• Location: Hybrid in Carnaxide, Portugal
• Education Recommendations: Currently a candidate finishing their BSc or MSc degree in Computer Science or Electrical Engineering
• Contribute to the definition and specification of the planning tool functions based on PLM input and internal and external customer requests. This includes defining use cases, network topologies on which the planning tool operates, user interfaces, m2m interfaces, and planning tool algorithms like optimization algorithms, equipment selection rules etc.
• Understand the specifics of Nokia line systems and tailor the planning tool functions and algorithms to new revisions of line systems and new line system features.
• Work with R&D in Agile teams to implement the line system functions and deliver a product to internal and external customers

You Have:

• Master’s Degree in an engineering discipline (computer science or electrical engineering with focus on fiber optics or optical physics)
• In-depth knowledge of optical communication systems and high capacity coherent DWDM networks mandatory
• Understanding of linear and nonlinear physical impairments in fiber optical transmission systems.
• Hands on programming using JAVA, python, MATLAB, or other, e.g. to develop proof of concepts

It would be nice if you also had:

• Excellent communication and presentation skills and ability to work in a multi-disciplinary, multi-site and multi-national team environment.
• Self-directed and highly motivated.
• Hands-on experience in planning and optimization of optical DWDM networks is very desirable.
• Ability to think strategically and analytically.

Advancing connectivity to secure a brighter world.

Nokia is a global leader in connectivity for the AI era. With expertise across fixed, mobile and transport networks, powered by the innovation of Nokia Bell Labs, we’re advancing connectivity to secure a brighter world. 

Learn more about life at Nokia.



About the Business Group

A robust digital backbone is the unsung hero of modern life, underpinning everything from daily interactions to cloud computing and critical infrastructure. The Network Infrastructure team is passionate about pushing the boundaries of what's possible in networking, tackling the toughest challenges and delivering innovative solutions.

We deliver trusted, purpose-built IP, optical, fixed, and data center solutions that power the internet, drive the global economy, and support the mission-critical industries that keep the world running.

Our recruitment process
We act inclusively and respect the uniqueness of people. Our employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law. We are committed to a culture of inclusion built upon our core value of respect.
If you’re interested in this role but don’t meet every listed requirement, we still encourage you to apply. Unique backgrounds, perspectives, and experiences enrich our teams, and you may be just the right candidate for this or another opportunity.
The length of the recruitment process may vary depending on the specific role's requirements. We strive to ensure a smooth and inclusive experience for all candidates. Discover more about the recruitment process at Nokia.