Top Tech Jobs & Startup Jobs in Chicago, IL

Designs, deploys, and manages information security systems (firewalls, IPS/IDS, SIEM, WAF, IAM). Performs vulnerability scanning, incident response, audits, protocol analysis, and security consulting. Develops BCP/DR plans, researches new technologies, and collaborates with legal, HR, and law enforcement on investigations.

Provide enterprise security architecture consulting: advise clients on security strategy, design and implement security solutions, perform risk and network security assessments, develop policies, review system deliverables, and lead senior client engagements and delivery oversight.

Designs, deploys, and maintains information security systems (firewalls, SIEM, IDS/IPS, WAF), performs audits, incident response, vulnerability management and penetration testing, develops access controls and BCP/DR plans, and advises stakeholders on security risks and remediation.

Lead design, implementation, and management of enterprise network security across global offices. Manage firewalls, routers, switches, patch and vulnerability remediation, SIEM/incident escalation, cloud security, and vendor interactions. Drive vulnerability assessments, CVE research, patch processes, documentation, and cross-team remediation efforts to protect systems and applications.

Provide Windows workstation and server LAN administration, PC hardware/software support, ticket-based troubleshooting and documentation, basic Mac support, network configuration assistance, and occasional travel to remote sites to ensure high customer satisfaction.

Design, develop, test, document, and maintain .NET web applications in a team environment. Mentor junior developers, assist project planning and timelines, evaluate emerging technologies, and manage/assign work via a ticket tracking system.

Design, develop, implement, test, deploy and support Java web and client-server applications using JSF/Spring. Collaborate with business analysts and teams, produce technical design and unit tests, perform code reviews, create DB2 stored procedures, document solutions, and follow SDLC best practices.

Design, develop, deploy and support TIBCO-based EAI/ESB solutions. Perform requirements analysis, create mappings, test and debug components, support UAT and production, lead teams, coordinate onsite-offshore stakeholders, and provide production support and documentation.

Analyze and optimize hotel telecommunications systems, provide 24x7 escalation and after-hours support, manage telecom vendors, and support provisioning and implementation of Avaya/Mitel phone systems. Lead project management for new hotel openings, system transitions and switch replacements, and ensure corporate telecom standards and global customer support.

Serve as senior business analyst for Finance and ERP initiatives: gather and document requirements, define reporting, map as-is/to-be processes, support SDLC delivery, run small projects, act as SME across finance, supply chain and distribution functions, and use ITIL practices to manage incidents and improvements.