Network Data & Netscaler Lead PO

WERE HIRING: NETWORK DATA & NETSCALER LEAD IN POLAND!

Excis is a global IT services leader driven by innovation collaboration and a commitment to delivering secure high-performance infrastructure solutions.

We are seeking a highly skilled and proactive Network Data & Netscaler Lead be responsible for the management and optimisation of enterprise network services including load balancing DNS network routing segmentation and network automation. This role ensures high availability scalability and performance of business-critical applications through technologies such as Citrix NetScaler (ADC) and Infoblox. You will also address operational challenges such as device lifecycle management firmware upgrades and integration of new network services while supporting the transition toward cloud-managed networking and the adoption of Software-Defined Networking (SDN) principles.

Join us for a rewarding career in a supportive growth-oriented environment where people and performance go hand in hand.

• Client presence in 190 countries
  
• 6000 engineers globally
  
• 200 enterprise clients
  

We foster an open friendly and collaborative culture where individual achievements contribute to overall team success. From solving complex security challenges to celebrating milestones we put our people first.

Key Responsibilities:

• Provide L3 support for network transport routing DNS load balancing NAC and network automation incidents.
  
• Monitor network infrastructure components: routers switches DNS/DHCP/IPAM load balancers (Citrix NetScaler) routing policies segmentation boundaries.
  
• Execute routine network maintenance such as firmware updates configuration adjustments device health checks and routing optimization.
  
• Support onboarding and configuration of network devices following network engineering standards and architecture patterns.
  
• Troubleshoot connectivity routing segmentation DNS resolution and application delivery issues.
  
• Manage and optimize NetScaler ADC platforms.
  
• Manage and improve Infoblox DDI including zone design DHCP scopes IPAM hygiene and largescale scripted changes.
  
• Support network capacity planning SRE practices and performance optimization activities.
  
• Participate in network lifecycle work: device refresh firmware upgrades cloud connectivity expansion SDWAN/SDN adoption.
  
• Maintain network asset inventories topology documentation routing diagrams and runbooks.
  
• Participate in DR rehearsals for network failover including synthetic monitoring validation.
  
• Improve operational processes by identifying network bottlenecks recurring issues and proposing automation.
  
• Work with application teams cloud teams and vendors to resolve cross-domain network and loadbalancing issues.
  
• Ensure network compliance: change management audit requirements stable configuration baselines.
  
• Maintain expert-level knowledge of routing protocols network segmentation models ADC traffic flows and DNS architecture.
  
• Participate in team knowledge sharing operational reviews and capability building.
  
• Escalate high-impact network outages or routing issues per the escalation matrix.
  
• Lead the L2 Network Data analysts and organize an On-Call rota for this area.
  

Required Skills & Qualifications:

• Advanced load balancing and application delivery expertise with Citrix NetScaler/ADC (L4L7 SSL offload GSLB HA).
  
• Strong DNS/DHCP/IPAM (Infoblox DDI): zone architecture DHCP management IP address automation split-horizon DNS.
  
• Deep understanding of routing protocols (OSPF BGP EIGRP) network segmentation ACL design.
  
• Certificate lifecycle management for network devices and ADC bindings (TLS cipher suites HSTS).
  
• Experience with network automation (Python Ansible Infoblox APIs NetScaler automation).
  
• Strong skills in network performance troubleshooting packet analysis (Wireshark) TCP/IP deep diagnostics.
  
• Knowledge of network capacity planning dependency mapping and SRE approaches.
  
• Firmware and platform upgrade experience: automated validation same-day rollback structured deployment.
  
• DR and continuity planning for network failover loadbalancer failover DNS/GSLB resilience.
  
• Monitoring & SIEM integration for network telemetry ADC logs DNS query logging.
  
• Mentoring of L2 analysts in routing DNS load balancing and network troubleshooting.
  
• People management for the Network Data L2 analysts.
  

Why Join Us

At Excis your work has a direct impact. Youll be part of a dynamic and hands-on team where your technical expertise drives user satisfaction and operational success.

We offer:

• A collaborative and supportive work environment
  
• Opportunities for continuous learning and career growth
  
• Exposure to diverse technologies and global clients