Network Engineer

Company: CrossRealms is a fast-growing Chicago-based IT Managed Services and solutions provider comprised of certified expert consultants, engineers, and business team members. We specialize in designing customized, enterprise-class solutions that are comprehensive, resilient, and scalable. Through our technology expertise and proven track record of transformative results for companies large and small, we aim to build long-term relationships and are committed to meeting and exceeding client needs. Our services and solutions are in use by a wide variety of industries, including legal, manufacturing, healthcare, and more.

Position Title:
Network Engineer

Chicago (onsite – Chicagoland based applicants only)


The Network Security Engineer will be responsible for the configuration, implementation and administration of Cisco Switching (IDF/MDF) and Palo Alto Firewalls (PA-200, PA-400, and PA-800 models).


  • Rack and stack switches and firewalls and perform basic configuration
  • Analyzes, troubleshoots, and corrects network problems remotely and on-site
  • Modifies and maintains network security policy.
  • Performs other related duties as may be required.


  • Minimum of 2 to 5 years directly related work experience in network, security administration\ engineering.
  • Prior hands-on professional experience must include Cisco Switches and Palo Alto Firewalls.
  • Strong analytical, reasoning, and organizational skills
  • Excellent verbal and written communications skills
  • Ability to establish and maintain effective work relationships with all levels of personnel both internally and externally; e.g. leadership, executives, clients, vendors, and agencies.
  • Ability to work in and constructively contribute to team work environment and meet stringent deadlines.
  • Ability to prioritize and handle multiple tasks simultaneously.
  • Attention to detail and follow through including the ability to document work.
  • Strong work ethics and infinite desire to learn and grow
  • Requires clearing a background check
Job Type: Full Time
Job Location: Chicago (onsite – Chicagoland based applicants only)

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Usama Houlia - CEO

Usama Houlila

President and Enterprise Architect
Usama Houlila is an Enterprise Architect with more than 20 years of professional experience providing technology solutions for organizations in industries including legal, public services, healthcare, finance, retail, hospitality, and manufacturing. Usama is well-versed in all phases of project delivery – from initiation to closeout. His ability to see the big picture is a product of his comprehensive knowledge of hardware, software, application, and systems engineering. Usama’s myriad interests include international affairs, nutrition and health, cooking, and music. He has played the flute since childhood and is an avid runner and bicyclist who recently added swimming and triathlons to the mix. He currently manages, designs, and deploys palo alto for legal, healthcare, and financial services.