Network Security Engineer

About Capgemini

Capgemini is an AI-powered global business and technology transformation partner, delivering tangible business value. We imagine the future of organizations and make it real with AI, technology and people. With our strong heritage of nearly 60 years, we are a responsible and diverse group of over 420,000 team members in more than 50 countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2025 global revenues of €22.5 billion.

Job Summary

We are seeking a highly motivated and technically skilled Network Security Engineer to support, maintain, troubleshoot, and optimize enterprise security infrastructure. The ideal candidate will possess strong networking fundamentals and hands-on experience with Cisco security technologies, security operations, access control, and perimeter security solutions. The role requires excellent troubleshooting abilities, customer-facing communication skills, and the capability to manage multiple technical engagements simultaneously.

Key Responsibilities

• Design, implement, support, and troubleshoot enterprise network security solutions.
• Manage and maintain Cisco security platforms including firewalls, identity services, and remote access technologies.
• Analyze, diagnose, and resolve complex network and security incidents.
• Configure and support Network Address Translation (NAT), VPNs, zoning, and security policies.
• Monitor and optimize network security performance, availability, and reliability.
• Support high-availability and failover configurations for critical security infrastructure.
• Implement and maintain identity and access management controls.
• Collaborate with cross-functional teams to integrate security solutions into enterprise environments.
• Provide technical guidance, documentation, and knowledge transfer to customers and internal teams.
• Participate in incident management, root cause analysis, and continuous improvement initiatives.
• Deliver technical presentations and communicate effectively with stakeholders at various levels.

Required Skills & Qualifications

• Strong understanding of networking fundamentals including - LAN Switching, Routing, TCP/IP networking concepts
• Hands-on experience in any Cisco Security technologies, including - Cisco ASA, Cisco Firepower Threat Defense (FTD), Cisco Firepower Management Center (FMC), Cisco Identity Services Engine (ISE), Cisco Email Security Appliance (ESA), Cisco Web Security Appliance (WSA), Cisco AnyConnect
• Strong knowledge of: NAT (Network Address Translation), Security zoning, VPN technologies (Site-to-Site and Remote Access), Identity and Access Management concepts
• Solid understanding of perimeter security architecture and design principles.
• Excellent troubleshooting and analytical skills.
• Exceptional written, verbal, and presentation communication skills.

Experience Level

• 3–7+ years of experience in Network Security, Security Operations, or Security Support roles with hands-on exposure to Cisco security technologies.
• Solid understanding of perimeter security architecture and design principles.
• Excellent troubleshooting and analytical skills.
• Exceptional written, verbal, and presentation communication skills.

Let's talk about what's in it for you!

Passionate people are Capgemini's Ace of Spades - join us to discover a career that will challenge, support and inspire you. Working at Capgemini you'll find the rewards are more than just financial. You will work alongside some very smart and inspiring people on exciting projects and you will also enjoy incredible benefits. We offer flexible work practices and 40 hours of self-development every year with a huge selection of learning opportunities to choose from.

As Architects of Positive Futures, Capgemini actively supports the community in 3 ways:

Diversity and Inclusion - we believe diversity of thought fuels excellence and innovation, which is why we positively encourage applications from suitably qualified candidates regardless of their gender identity, ethnicity, sexual orientation, religion, ability, intersex status or age. To support our commitment to diversity and inclusion, we celebrate special events and days of significance that are important to our employees such as Diwali, Bastille Day, Pride, IDAHOBIT, IWD and International day of people with Disabilities. Our Employee Resource Groups Women@Capgemini and OutFront support the grassroots passion of employees to drive our diversity agenda and effect change.

Digital inclusion - at Capgemini we are using our skills to drive social impact initiatives focusing on helping society address the impact of the digital and automation revolution. We also provide employees with opportunities to give back to the community through charity projects and volunteer days.

Environmental Sustainability - Capgemini joined the CDP's (Carbon Disclosure Project) prestigious A list for its commitment to the Net-Zero economy. We are focusing on helping our clients transform towards more sustainable business models and committing to reduce our own carbon emissions (GHG) by 20% per employee by2020.

Recognised by Ethisphere as one of the World's Most Ethical Companies for the last 8 years in a row, ethics and values are at the heart of Capgemini's corporate culture and business. Embedded in our DNA, our seven values - Honesty, Boldness, Trust, Team Spirit, Freedom, Fun and Modesty - have remained the same since company inception in 1967. To see how we bring these values to life, click here to listen to some of our employee's stories.

Come join us, bring your whole self to work, create new possibilities for you, your customers and your community and help us to be Architects of Positive Futures.