Senior Network and Security Engineer

On site

Full time

Your future team

Deloitte Luxembourg embraced Innovation as driver for success. Our Internal IT department plays a crucial role in assisting Deloitte’s employees, by creating the technological environment that enables access to vital information and succeed in their job. As part of the Infrastructure team, you will support multiple service lines and work on large scale projects. You will achieve success by using the most cutting-edge tools and emergent technologies. We are not scared of pioneering new solutions and we are proudly delivering results thanks to the knowledge we are constantly developing

Your advantages of being one of us

• Career Growth, Your Way
  Access top-notch training and career development, with a clear progression path to help you level up at your own pace.
• Global Impact, Local Connections
  Work on international projects and collaborate with diverse teams, all while making an impact locally.
• Inclusive, Flexible Culture
  Embrace a culture where your voice matters, with flexible hours to balance work and life seamlessly.
• Build Your Network
  Gain access to an exclusive alumni network and attend industry events to connect and grow your professional circle.

Your contribution to our success 

• Manage daily operational tasks (changes, incidents, troubleshooting) to keep the infrastructure stable and secure.
• Install, configure, and maintain security and network components (Firewalls, Proxies, SIEM, DC/campus switches) and related management tools.
• Provide third-level support and advanced troubleshooting for infrastructure and applications, while monitoring backups and redundancy strategies.
• Proactively safeguard system security and availability by verifying compliance with security policies and tracking KPIs and SLAs.
• Produce clear documentation (procedures, reports, technical guidelines) to support the effective management and evolution of the environment.

Your skills 

• BS/MS degree in Computer Science
• Minimum 3 years’ experience in a security and network administrator role
• Solid experience administering firewalls (Palo Alto, Check Point, Fortinet) and network equipment (Catalyst, Nexus, ACI)
• Fluent in French and English, with strong communication skills and a collaborative, problem‑solving mindset

• Good knowledge of Netskope Proxy, F5 Load Balancer and Nginx
• Good knowledge of Cisco ISE, Catalyst Center and ISR/ASR routers
• Strong sense of ownership, reliability and attention to detail
• Ability to work under pressure, prioritise tasks and adapt quickly to changing situations

Interested? Please submit your resume in English

Get to know more about Deloitte; 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 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.