QUENTIN RÜHL

IT Security Engineer

I am an engineer in IT Security freshly graduated, currently working at Deloitte Luxembourg.
Curious by nature, I am always eager to learn about new technologies and basically anything that catches my interest.
Feel free to send me a message!

About Me

Profile picture
  • Name: Quentin Rühl
  • Date of birth: 27 September 1994
  • Address: Luxembourg
  • Nationality: French
  • Phone: +352 621 799 394
  • Email: quentin.ruhl27@gmail.com

Objective

I came to computer science when I discovered it in engineering school, I felt that this was the right path for me to follow. This is actually something that is able to quench my curiosity and thirst of learning, as it is an ever-changing environment. There are always new technologies and challenges that arise and need to be tamed. I decided to specialize in CyberSecurity because it cannot be dissociated of the IT world, no matter what you are doing, and thus offering the versatility that I am looking for. The perfect work environment for me is one that can offer me the ability to use all my skills, both technical and human to solve the critical challenges that nowadays society raises. Moreover, I am always willing to move around the world and be able to discover new cultures and mindsets !

What I Do ?

Thanks to my experiences, my skills are mainly focused towards System and Network administration, on infrastructures that vary a lot, whether this is in size or in the technologies that I have used. However, my education and personal projects allow me to also have significant skills in programming and scripting as well as, of course, IT Security that I love to put at the service of everything I do.

  • System & Network Administration
  • Infrastructure
  • Security Systems (Firewalls, SIEM...)
  • Security Standards & Good practices
Send me a message Download my cv

Skills

Servers & Appliances

Firewall

Checkpoint, Fortinet

SIEM

Qradar, Graylog

Windows Server

Hyper-V, AD, ADFS

Linux

CentOS/RHEL, Ubuntu

Nginx

VPN

Pulse Secure, F5, OpenVPN

Monitoring

Centreon,Eyes of Network

Cloud Technologies

Amazon Web Services
Azure

Programming & Scripting

Python
Powershell
Shell
Django
Java
Angular

Languages

Mother Tongue
C2

Bulats: 97/100

B1
A1

Experience

  • Since Oct 2018

    Security Engineer

    Deloitte, Luxembourg City, Luxembourg

    Deloitte Luxembourg has welcomed me for my first job that was not an internship. As a part of the Infrastructure and Solutions team, there is actually a dual focus that needs to be done. The first part is to maintain the integrity of the systems, prevent any outage that could have an impact on the continuity of business, as well as ensuring the highest level of security for every component in the infrastructure. The second part aims at staying on the technological cutting edge when it comes to our systems, coming up with new solutions to improve the quality of the infrastructure in itself and the services delivered by IT. It is so far the longest and most fruitful experience I have had the chance to carry out. In a company such as Deloitte, where the ecosystem is extremely diverse and high quality results are expected, adaptability and reactivity are key to succeed and bring the best work out of yourself.

    What I do:
    • Day to day administration of the security infrastructure: Firewall, Proxy, Reverse Proxy, VPN, SIEM...
    • Day to day system administration of hundreds of servers with various OS
    • Provide an "infrastructure point of view" to ongoing projects with many different teams
    • Continuous technological intelligence to improve the services provided by our team
    Deloitte Luxembourg
  • Feb - Aug 2018

    CyberSecurity Engineer

    SmartBuild Asia, Singapore

    SmartBuild Asia was a start-up based in Singapore that provided tech solutions and data science to the construction industry. It has now merged with BCI Media Group. I joined the company as my end of studies internship. My mission was to enhance the overall security of the company, from network to application. I needed to understand the whole infrastructure of the company, as well as the processes that were in place. The ecosystem of the company was based on Amazon Web Services as a main brick, with many applications that gravited around it. Thanks to my knowledge of the language, I also had to play a part in the development of Python scripts that were the core business of SmartBuild Asia. I had the freedom to explore any solution that would suit my task. It allowed me to have a deeper understanding of many key topics in today's IT world, from ISO27001 to Amazon Web Services. Although I learned a lot of things on the technical side, this experience has also deeply improved my autonomy and my "high level" vision of a company and its relation to IT.

    What I did:
    • Managed the Information Security of the whole company on AWS as well as on premises
    • Secured the network with technical implementations: Cisco Meraki Firewall, Backup policies and scripts, JumpCloud Directory...
    • Setup of an ISMS compliant with the ISO 27001 Standard
    • Developed Python scripts to recover the phone number, fax, email address and logo on any website
    SmartBuild Asia
  • May - Aug 2017

    Network and Security Intern

    Ferco International, Reding, France

    I integrated the Systems and Network team of this factory for 3 months as my second year internship. The line of work of the company being the manufacture of windows and doors hardware, IT was not a selling product, but rather support and infrastructure. I keep this internship as my first step in the IT professional world. It was an enlightening experience that allowed me to enhance quickly and strongly my skills, both in programming and networking. Moreover, the team being fairly small at the time, swiftness and polyvalence were key values to ensure quality work and continuity in the production.

    What I did:
    • Day to day system administration of hundreds of servers on VMWare clusters and Cisco network devices
    • Developed a tool in Java to centralize the administration of Cisco network devices
    • Developed a script in Python locating any device in the factory with its IP address
    • Overviewed and took part to a security audit aiming to assess the resilience of the network against penetration
    Ferco International
  • Jan - May 2016

    "Turn your smartphone into a colorimeter"

    Grenoble INP - Phelma, Grenoble, France

    In the second semester of first year in Phelma, all students have to team up and choose a project (within 70) and conduct it. We wanted to do something that was computer science related, so we chose to develop an Android application, exactly coding a Colorimeter application. The goal was to deduce the concentration of a solution out of a picture and some user inputs. None of the member of the team knew how to code in Java at the time so we had to learn it and code the colorimeter afterwards. It was a really interesting and motivating thing to do and we all learned a lot during this project: GUI design, Image processing, Java, Project management...

    What I did:
    • Learned to code in Java with OpenClassRooms and used the libraries inherent to a mobile application
    • Personnaly dealt with the image processing part by analyzing the pixels of the picture in a delimited zone, calculating the mean values and discarding areas that were not relevant
    • Presented our result in a fair besides other students and their own projects
    Grenoble INP - Phelma

Education

  • 2017-2018

    Master of Science in CyberSecurity

    Grenoble INP - Ensimag, Grenoble, France

    Double degree taught with Université Grenoble Alpes, in English. There I learned about numerous aspects of CyberSecurity: Cryptography, Physical, Network, Software. This diversity enables the student to have a good overview of what is at stake when it comes to security.

    SmartBuild Asia
  • 2016-2018

    Master of Engineering in Internet, Telecommunications and Software Devices

    Grenoble INP - Ensimag, Grenoble, France

    Specialization taught with Grenoble INP - Phelma. I learned about programming, system and networks administration, security and physics applied to computer science.

    SmartBuild Asia
  • 2015 - 2016

    Bachelor's Degree in Physics, Electronics and Telecommunications

    Grenoble INP - Phelma, Grenoble, France

    I entered Phelma after prep school as my first choice of engineeering school. I learned about electronics, computer science and signal processing as part of my specialization, and about materials, quantum physics and mathematics as part of the common core.

    Ferco International
  • 2012 - 2015

    CPGE - "Classes préparatoires aux Grandes Écoles" in Physics & Chemistry

    Lycée Henri Poincaré, Nancy, France

    "Prepa", as we call it in France, is an intensive training preparing for competitive entrance examination in engineering school. I did it with a specialization in Physics and Chemistry but we learn also Mathematics, English and Literature.

    Lycée Henri Poincaré