Sr Systems Engineer - Citrix NetScaler | Remote

Senior Systems Engineer – Citrix NetScaler - Remote

Duration: Contract through February 2027 with potential for extension
Schedule: Monday–Friday, Eastern Time Business Hours

ARC Group has an immediate opportunity for aSenior Systems Engineer with deep expertise inCitrix NetScaler ADC and enterprise application delivery infrastructure. This position is with a highly respected healthcare organization and offers the opportunity to work on mission-critical infrastructure supporting enterprise web applications and cloud modernization initiatives.

This position is 100% remote!

This isnot a virtualization role. The team is responsible for enterprise load balancing, reverse proxy services, application delivery, and supporting cloud migration initiatives.

Please Note:

• Candidates must havepermanent U.S. work authorization.
• No C2C, third-party, or sponsorship opportunities are available for this position.

Position Summary

As a Senior Systems Engineer, you will be responsible for the design, administration, monitoring, troubleshooting, and optimization of enterprise application delivery infrastructure. You will serve as a technical leader supporting Citrix NetScaler ADC, Fortinet FortiProxy, Microsoft IIS, cloud migrations, and automation initiatives while ensuring high availability, security, and performance across the enterprise.

Key Responsibilities

• Administer and support enterpriseCitrix NetScaler ADC environments.
• Configure and troubleshootLayer 4 and Layer 7 load balancing.
• PerformPCAP analysis and advanced network troubleshooting.
• Manage enterprise reverse proxy infrastructure supporting public-facing applications.
• Lead hardware refreshes, migrations, and infrastructure modernization projects.
• SupportAWS cloud migration initiatives from an application delivery and load balancing perspective.
• AdministerFortinet FortiProxy or similar proxy technologies, including firmware upgrades and patch management.
• Support and maintainMicrosoft IIS web server environments.
• Manage SSL certificates and application security.
• Develop automation usingPowerShell and other scripting languages.
• Monitor system performance, troubleshoot complex issues, and implement proactive improvements.
• Collaborate with infrastructure, networking, security, and application teams.
• Participate in disaster recovery planning and 24x7 on-call support as needed.
• Ensure enterprise environments remain secure, compliant, and aligned with architectural standards.

Required Qualifications

• 7+ years administeringCitrix NetScaler ADC, including:
  • Layer 4/Layer 7 routing
  • PCAP analysis
  • Hardware refreshes
  • Infrastructure migrations
• 3+ years supporting cloud migrations or cloud transformation initiatives (AWS preferred).
• 3+ years administeringFortinet FortiProxy or similar proxy platforms, including firmware upgrades and patching.
• 3+ years managing SSL certificates.
• Experience supportingMicrosoft IIS web servers.
• Strong experience working in bothWindows and Linux environments.
• Experience supporting vulnerability management and audit remediation.
• Strong scripting experience usingPowerShell; Java, Python, or PHP experience is a plus.
• Experience implementing and supporting enterprise-scale application delivery infrastructure.
• Ability to participate in a 24x7 on-call rotation.
• Must be a U.S. Citizen or Green Card holder to qualify. 

Preferred Qualifications

• Healthcare or other large enterprise environment experience.
• AWS Application Load Balancer (ALB) or cloud-native load balancing experience.
• Experience with enterprise automation and infrastructure modernization initiatives.
• Excellent troubleshooting, communication, and technical leadership skills.

Why This Opportunity?

• Join one of the nation's leading healthcare organizations.
• Work on large-scale enterprise infrastructure supporting mission-critical applications.
• Be part of cloud transformation and modernization initiatives.
• Long-term contract with strong potential for extension.
• Hybrid work environment offering flexibility and collaboration.
• Opportunity to work alongside highly experienced infrastructure engineering teams.

Would you like to learn more?

For immediate consideration, please send your resume directly toD.A. Longhi atdlonghi@arcgonline.com or apply online while viewing all of our current openings.

ARC Group is a Forbes-recognized recruiting and executive search firm partnering with leading organizations nationwide to identify exceptional technology and professional talent.

ARC Group is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status, age, or any other protected characteristic. Accommodations are available throughout the recruitment process upon request.

Position is offered with no fee to the candidate.