Citrix/NetScaler Network Engineer

About Capgemini

Capgemini is a global business and technology transformation partner, helping organizations to accelerate their dual transition to a digital and sustainable world, while creating tangible impact for enterprises and society. It is a responsible and diverse group of 340,000 team members in more than 50 countries. With its strong over 55-year heritage, Capgemini is trusted by its clients to unlock the value of technology to address the entire breadth of their business needs. It delivers end-to-end services and solutions leveraging strengths from strategy and design to engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data, combined with its deep industry expertise and partner ecosystem. The Group reported 2024 global revenues of €22.1 billion.

Job Description:

We're looking for a passionate and experienced Level 3 Citrix NetScaler Engineer to join our vibrant team! You will lead the resolution of complex technical issues, drive service improvements, support infrastructure modernization initiatives, and collaborate with cross-functional teams to maintain business-critical services across on-premises and cloud environments.

Responsibilities:

Serve as the final escalation point for complex Citrix ADC (NetScaler) and load balancing incidents.

Troubleshoot advanced application delivery, authentication, gateway access, and connectivity issues.

Conduct root cause analysis (RCA) for major incidents and implement preventive actions.

Provide on-call support for critical incidents and service restoration activities.

Administer and maintain Citrix ADC (VPX, MPX, and SDX) platforms.

Configure and manage load balancing virtual servers, service groups, monitors, content switching, SSL offloading, and Citrix Gateway services.

Perform firmware upgrades, platform lifecycle management, and security hardening activities.

Design and optimize load balancing solutions to enhance application performance, resilience, and availability.

Manage SSL certificate lifecycle, authentication integrations, and high-availability configurations.

Collaborate with Network, Security, Cloud, Infrastructure, Application, and Vendor teams to support business and operational objectives.

Drive automation, capacity planning, service improvements, and operational excellence initiatives.

Produce and maintain technical documentation, implementation procedures, and operational standards.

Experience & Qualification:

Bachelor's degree in Computer Science, Information Technology, Computer Engineering, Telecommunications, or a related field.

Minimum 7+ years of experience in Citrix Infrastructure, Application Delivery, and Load Balancing technologies.

Fluency in written and spoken English.

Proven experience supporting and administering enterprise-scale Citrix ADC (NetScaler) environments.

Strong expertise in Citrix ADC VPX, MPX, SDX, Citrix Gateway, and Load Balancing services.

Deep knowledge of SSL/TLS, authentication mechanisms, LDAP integration, network security, and high-availability architectures.

Hands-on experience with firmware upgrades, disaster recovery, performance optimization, and capacity planning.

Solid understanding of TCP/IP, DNS, HTTP/HTTPS, application delivery, and networking fundamentals.

Experience working within complex enterprise environments and collaborating with multiple technology teams.

Demonstrated problem-solving, troubleshooting, and root cause analysis skills.

Experience with automation and scripting tools such as PowerShell, Python, or Ansible is highly desirable.

Relevant certifications such as Citrix Certified Associate (CCA), Citrix Certified Professional (CCP), or equivalent are preferred.

Excellent communication, stakeholder management, and documentation skills.

Strong analytical mindset with the ability to perform under pressure in mission-critical environments.