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Network Senior Specialist
  • Warsaw
Network Senior Specialist
Warszawa, Warsaw, Masovian Voivodeship, Polska
ALTEN Polska
26. 9. 2025
Informacje o stanowisku

technologies-expected :


  • Citrix NetScaler
  • VMware
  • SSL/TLS

responsibilities :


  • Design and implement scalable load balancing solutions to support reliable application delivery.
  • Configure and troubleshoot Layer 4 and Layer 7 load balancing policies for efficient traffic management.
  • Install and configure Citrix NetScaler appliances or virtual instances, ensuring seamless integration into existing network architecture.
  • Set up and maintain high availability (HA) and failover mechanisms, including active-passive and load-sharing configurations.
  • Implement NetScaler Content Switching to optimize application routing and delivery.
  • Manage SSL/TLS certificates and integrate authentication mechanisms to ensure secure connections.
  • Monitor system performance using built-in tools and third-party applications (e.g., Wireshark, NetScalerConsole).
  • Identify and resolve complex issues related to configuration, connectivity, and performance.
  • Analyze logs and events to proactively manage system health and prevent downtime.
  • Develop and maintain comprehensive documentation and training materials for junior engineers and operations teams.

requirements-expected :


  • Minimum 5 years of experience in a similar position.
  • Hands-on expertise with Citrix NetScaler (CLI/NITRO API and GUI) – must have.
  • Deep understanding of TCP/IP, NAT, VLANs, firewalls, VPNs, and security policies.
  • Proven experience with Layer 4 and Layer 7 load balancing.
  • High availability and failover configuration skills.
  • Advanced NetScaler Content Switching capabilities.
  • SSL/TLS certificate management and authentication integration.
  • Proficiency with tools like Wireshark and NetScalerConsole.
  • Strong diagnostic skills for performance issues and system bottlenecks.
  • Experience with log analysis and event monitoring.
  • Experience with Palo Alto Networks, Check Point, VMware NSX-T, and Zscaler solutions.

offered :


  • A full-time contract with possibility to choose the form of employment (UoP/B2B)
  • Stable and long-term cooperation
  • A clearly defined career path and the possibility of development in four areas as: Project Manager, Business Manager, Technical Leader and a specialist in their field
  • Participation in company conferences, trainings, workshops, integration meetings, etc.
  • Certification and training opportunities
  • Opportunity to relocate and work in different ALTEN Polska branches

benefits :


  • sharing the costs of sports activities
  • private medical care
  • life insurance
  • dental care
  • retirement pension plan
  • baby layette
  • employee referral program
  • Medicover Benefits platform

  • Praca Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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