Add your latest resume to match with open positions.

5 results for Network Security Engineer in Naperville, IL

Network Engineer

Schaumburg, IL
onsite
Temporary / Contract
71.25 - 82.5 USD / Hourly
We are looking for an experienced Network Engineer to support enterprise networking and security initiatives in Schaumburg, Illinois. This Long-term Contract position focuses on designing, administering, and optimizing secure network environments across firewall, wireless, and cloud-managed platforms. The role requires a hands-on, detail-oriented individual who can strengthen connectivity, improve visibility, and help deliver infrastructure changes with minimal disruption. Responsibilities: • Administer and enhance network security platforms using Fortinet solutions, including firewall, endpoint access, and analytics tools. • Manage Aruba-based switching, wireless, and centralized management environments to maintain reliable campus and branch connectivity. • Plan and execute secure connectivity updates, including IPsec-related changes, pilot deployments, and production implementations. • Integrate network and security systems with identity services such as Active Directory and Entra ID to support controlled access. • Oversee certificate usage and lifecycle processes to help maintain trusted authentication across network services. • Monitor logs, generate operational reporting, and troubleshoot issues spanning firewalls, routing, wireless, and security infrastructure. • Create and maintain technical documentation, including standard procedures, operational runbooks, and knowledge transfer materials. • Collaborate with technical teams to support cloud-managed networking and security platforms while improving performance and resilience.
2026-05-08T00:00:00Z

IT Security Engineer – Zscaler Specialist

Chicago, IL
onsite
Temporary / Contract
63.65 - 73.7 USD / Hourly
We are looking for an experienced IT Security Engineer – Zscaler Specialist to support and strengthen enterprise cloud security operations in Chicago, IL. This Long-term Contract position focuses on administering and enhancing Zscaler-based security services while helping maintain a reliable, scalable, and well-governed security environment. The role will partner with cross-functional teams to evaluate requirements, resolve technical issues, and improve secure access, web protection, and data safeguarding capabilities. Responsibilities:• Administer and optimize Zscaler security platforms to support secure, high-performing access across cloud and enterprise environments.• Investigate configuration issues, analyze service behavior, and implement corrective actions to maintain stable security operations.• Collaborate with infrastructure, network, and application teams to align security controls with business needs and technical requirements.• Support secure web access, zero trust connectivity, firewall policy coordination, and data protection initiatives across the environment.• Conduct reviews of existing processes and technical documentation to identify gaps, recommend improvements, and strengthen operational consistency.• Translate business and security needs into clear technical requirements, user stories, and actionable implementation plans in Agile delivery settings.• Participate in troubleshooting efforts, root cause analysis, and service improvement activities to reduce risk and enhance platform performance.• Assist with documentation updates, control validation, and ongoing analysis related to security changes, policies, and operational procedures.
2026-05-08T00:00:00Z

Telecom Unified Communications Engineer

Chicago, IL
onsite
Permanent / Full Time
105000 - 115000 USD / Yearly
We are looking for a Telecom Unified Communications Engineer to support and enhance enterprise communication systems in Chicago, Illinois. This role focuses on maintaining reliable voice and collaboration services, improving platform performance, and partnering with internal teams and external providers to resolve complex telecom issues. The ideal candidate will bring hands-on experience with unified communications technologies and a proactive approach to modernization, service stability, and end-user support. Responsibilities: • Partner with carriers and service vendors to investigate outages, troubleshoot service disruptions, and drive issues through to resolution. • Execute software updates, firmware changes, and platform enhancements while following established change control standards. • Lead the planning and delivery of communication system upgrades, replacement efforts, and migration projects that strengthen long-term platform reliability. • Monitor system health, conduct validation testing, and tune performance to maintain a high-quality user experience across voice and collaboration services. • Manage and resolve user-submitted support tickets related to telecom tools, voice services, and unified communications platforms. • Develop and maintain backup and recovery procedures to protect critical communication components and support business continuity. • Evaluate new telecom products and services through technical review, testing, implementation support, and detailed documentation. • Install, configure, maintain, and monitor telecom hardware and software, including solutions that connect voice and data services with business applications. • Administer collaboration and communication platforms such as Webex, Calabrio, Cisco Unity, Cisco Emergency Responder, RedSky, and 2Ring. • Participate in an after-hours on-call rotation to provide escalated support for critical incidents and assist with additional infrastructure-related tasks as needed.
2026-05-08T00:00:00Z

Firmware Engineer

Chicago, IL
onsite
Temporary to Hire
43.5385 - 50.08 USD / Hourly
We are looking for a skilled Firmware Engineer to join our team in Chicago, Illinois, on a contract with the potential for a long-term position. In this role, you will contribute to the development, testing, and maintenance of embedded firmware for advanced control systems. This opportunity is ideal for a proactive engineer who thrives in an agile and collaborative environment, with the possibility to transition into a long-term role. Responsibilities: • Design and develop embedded firmware using C++ for control systems in industrial environments. • Test, debug, and maintain firmware to ensure optimal performance and reliability. • Collaborate with engineering teams to implement new features and enhance existing functionality. • Work independently to navigate and improve large, established codebases. • Utilize version control systems, such as Git, to manage code changes effectively. • Contribute to platform modernization and extend firmware capabilities for next-generation systems. • Troubleshoot complex issues and provide innovative solutions to improve system efficiency. • Interact with internal stakeholders, including product owners, to align development efforts with business goals. • Support both legacy and newer firmware platforms, depending on team assignment.
2026-04-15T00:00:00Z

MAC/JAMF Engineer

Downers Grove, IL
remote
Temporary / Contract
55.4135 - 64.163 USD / Hourly
We are looking for an experienced macOS expert with extensive knowledge of JAMF and enterprise identity frameworks to join our team on a contract basis. In this role, you will lead efforts to troubleshoot and resolve critical issues in macOS device enrollment, identity management, and migration workflows. This position is based in Downers Grove, Illinois, and offers an opportunity to work on high-impact projects in a fast-paced environment. Responsibilities:• Diagnose and resolve macOS migration failures from Jamf to Intune, ensuring seamless device enrollment.• Address issues related to enrollment notifications and reassignment workflows for macOS devices.• Repair and optimize enrollment profiles, device tokens, and Apple–Intune handshake processes.• Analyze and fix identity enforcement failures on macOS devices integrated with Intune.• Ensure proper synchronization between Entra ID credentials and Okta integration at login.• Develop compliant identity workflows that align with enterprise security standards and policies.• Provide technical expertise and guidance to engineering teams working with Intune, Jamf, and identity platforms.• Collaborate with Microsoft and Apple Enterprise Support to escalate and resolve complex technical challenges.• Create detailed documentation of migration steps, troubleshooting processes, and best practices.• Architect solutions to prevent conflicts between Apple-required local accounts and Zero Trust models.
2026-04-28T00:00:00Z