Cyber Security Specialist


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:
Cyber Security Specialist 

As a Cyber Security Specialist, you will ensure systems are in place to provide a secure environment. Use industry knowledge to not only suggest best practices but to also put them in place. Expected to have a solid foundation in managing information security policies and a hands-on role that requires a high degree of technical security expertise in ensuring security policies and controls.


  • Ensure the integrity, security, and resiliency of critical operations
  • Provide support and engineering for web and email proxies, SIEM, vulnerability management, cloud environments, IDS / IPS and firewall reviews
  • Identify and analyze potential threat activity targeting client networks via monitoring systems, alerts, vulnerabilities, SIEM tools and network traffic.
  • Harden the configuration of devices and networks utilizing best practice with minimal interruption.
  • Conduct security event monitoring, advanced analytics and response activities
  • Respond to and resolve or escalate security and networking incidents.
  • Interact with stakeholders and possess the ability to influence direction, articulate risks and sell secure solutions
  • Generate best practices for the technology or tool.
  • Take initiative to determine how a system should work and make improvements of its usage.
  • Develop and maintain documentation for security systems and procedures.


Required Skills:

  • Bachelor’s degree.
  • 5+ years in IT and security for an enterprise-level organization.
  • IT security certifications (CISSP, GIAC, CEH or similar)
  • Advanced to expert-level knowledge and understanding of enterprise security best practices, security engineering and integration as required.

Job Type: Fulltime 
Job Location: Chicago (onsite – Chicagoland based applicants only) 

Job Category: Technology
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.