Cyber Security Intern - Start date as of September 2026

Your future team

Deloitte provides a broad range of cyber security services to respond to a fast-paced and ever-changing environment. Our cyber security specialists have hands-on experience not only in assessing complex networks and systems, but also in designing and implementing information security governance and transformation programs. As a cyber-security trainee, you will work with our diverse teams of leading professionals to help design and implement solutions to some of today toughest cyber security challenges. You will have the opportunity to build skills across a variety of cyber risk domains and gain exposure to the challenges of a range of industry sectors.

The advantages of joining us

1. Career Growth, Your Way


2. Innovative Work That Matters


3. Purpose-Driven Work


4. Build Your Network

How you’ll contribute to our success

1. Help clients to address the underlying security challenges raised by the digital transformation journey (IoT, Mobile technologies, Cloud computing, etc.)


2. Participate in solution assessments across the solution lifecycle: concept, design, pre-deployment, post-deployment, end of life. This may involve testing inclusive of penetration testing in a non-prod environment (e.g.. device software stack penetration testing, software architecture and protocol design reviews, etc.)


3. Support our product development and eminence activities


4. Communicate business and technical risks at all levels of audience

Your skills

1. Master Degree in Computer Science, Information Systems, Information Security or other technology disciplines is recommended


2. Having a relevant work experience (e.g. internships, summer positions, school jobs, or first work experience) would be considered as an asset


3. Understanding of Linux or real time operating systems and Internet of Things (IoT) devices is required


4. Having programming skills (e.g. Python or C/C++) would be considered as an asset


5. Demonstrating problem solving and critical thinking skills


6. Be capable of working both independently and as part of a fast moving team


7. Fluent in English and French/or German

Interested? Please submit your resume in English

Get to know more about Deloitte on our LinkedIn page (#DeloitteLU), Instagram page, YouTube page or website.

With more than 2,600 employees and 98 nationalities, Deloitte Luxembourg is one of the Grand Duchy's largest, strongest and oldest professional services firms. For more than 75 years, our talented teams have been serving clients in various industries delivering high added-value offerings to national and international clients in audit and assurance, consulting, financial advisory, risk advisory, tax, and related services. Deloitte Luxembourg is part of the global Deloitte network.

Deloitte provides leading professional services to nearly 90% of the Fortune Global 500® and thousands of private companies. Our people deliver measurable and lasting results that help reinforce public trust in capital markets and enable clients to transform and thrive. Building on its 180+-year history, Deloitte spans more than 150 countries and territories. Learn how Deloitte’s over 470,000 people worldwide work together every day to make an impact that matters at www.deloitte.com.