IT Internship - Fullstack Engineer: Modernizing Enterprise Frontends with React & .NET

Swisscom; Rotterdam; On-site; EUR 7,800 - 11,000; Full time

Benefits offered by this job

810 € gross Monthly Allowance

IT Equipment

Agile working environment and lean mgm

Flexible working time model

Training and personal development

International Environment

Holidays & time off

Job summary

Swisscom offers an IT internship in Rotterdam focused on modernizing enterprise frontends with React and .NET. You will join an international team across Switzerland, Rotterdam, and Riga, and contribute to real projects shaping digital transformation.

Expect hands-on work in frontend, backend, cloud or full-stack, in an agile environment using Scrum/SAFe for a 6-month program starting 1 February 2027. You’ll work with TypeScript, JavaScript, C#, .NET, and React, with exposure to CI/CD,

Qualifications

• Student in final year of HBO or university CS/informatics.
• Residence: Netherlands; willing to work in Rotterdam.
• Strong English; NUFFIC agreement required for non-EU interns.

Responsibilities

• Work in an agile team on frontend migrations using React/TypeScript and .NET Web APIs.
• Contribute to CI/CD pipelines and DevOps practices.
• Collaborate across international teams in Rotterdam, Switzerland, and Riga.

Skills

TypeScript

JavaScript

C#

.NET

React

Tools

Git

DB

UX/UI

AWS

Kafka

Job description

IT Internship - Modernizing Enterprise Frontends with React & .NET

Becoming an IT professional that you aspire to be

About the Internship

Swisscom is always keen on attracting and developing the best talents. As part of the leading telecom and tech company in Switzerland, you will work on real projects that have real impact. From day one, you will be part of an international team collaborating across Switzerland, Rotterdam, and Riga, contributing to innovative solutions in Swisscom’s digital transformation. This means working hands‑on in backend, cloud, or full‑stack development, applying your Computer Science skills to real technical challenges.

With colleagues from over 60 nationalities, diversity is not just something we value, it is how we work. We believe in open collaboration, ownership, and continuous learning. You will be encouraged to share ideas, take initiative, and grow within the environment. We respect each other, help each other out, and are not afraid to make mistakes. We make sure you can be the best version of yourself.

Our internship program startson 1st February 2027. In this 6 months internship you will work in agile teams using Scrum and SAFe, gaining hands‑on experience in a fast‑paced and supportive environment.

About the Internship Project:

Join our agile engineering team to reshape mission-critical platforms! You’ll research and drive high‑impact frontend migrations within a robust Modular Monolith architecture. Work hands‑on with modern React, TypeScript, and .NET Web APIs, leveraging CI/CD DevOps pipelines, Microservices integration, and enterprise Security standards. Ideal for an ambitious developer ready to solve real-world architectural challenges and make a lasting impact!

Must-haves:

• TypeScript
• JavaScript
• C#
• .NET
• React

Nice-to-haves:

• Git
• DB
• UX/UI
• AWS
• Kafka

Who are you?

• You are a student enrolled in the last year of your HBO or University program in the field of Computer Science, Informatica, or any other similar field.
• You live in the Netherlands.
• You are willing to contribute to an international team and you have an agile mindset.
• You are curious and responsible.
• You have a good level of English; any other language is a plus.
  Please note that for non-EU students, it is necessary to provide the NUFFIC Agreement for the 6-month internship from your university in order to be eligible.

Perks

• 810 € gross Monthly Allowance (Full time)
• IT Equipment
• Agile working environment and lean management instructor
• Flexible working time model
• Plenty of opportunities for training and personal development
• International Environment
• Holidays & time off