Job Details

Primary Skills

2 References (All the below are mandatory) 

 Client Name :

Name of the reference :

Designation :

LinkedIn ID :

Phone :

Official Email :

Job Reference #: 26-07316 (Senior Network Security Engineer).

Additional Job Information:
Title:  Network Security Engineer
JobDiva #: 26-07316
Company:SDI/Human Resources
pay Rate: $60-63/Hour C2C
Date Issued: 10/23/2026
Position Type: Contract to Hire
Location: Chicago, IL, United States

MOI: may be onsite/virtual depends on client, so need local consultant with active linkedin 

Description:

immediate assistance filling - 6-month contract to hire
Onsite- Monday - Friday; 8:00am - 5:00pm
10510 W. Zemke Road, Chicago, IL 60666
Background check - CDA/Airport

The Network Security Engineer manages the firewall and network infrastructure security, and topology design. They build and lead a team focused on maintaining, supporting, and improving a large-scale IT environment while delivering high availability and uptime. The scope includes multiple sites and separate divisions and various connections to external vendors, partners, and other organizations.

Focusing on optimal firewall and network infrastructure health, security, and operational efficiency, the Senior Network Security Engineer directs architects and engineers (CCIEs, CCNPs, etc.), technical managers, third-party vendors, etc. This group manages all devices in accordance with Agreement policies, establishes and enforces operational priorities and standards, ensures compliance with standards, supports problem resolution, and assists with prioritizing individual and special projects.

The Network Security Engineer helps the client manage, oversee, and refine policy to conform to the client's SLRs and SLAs. The Data Center Engineer manages and oversees all phases of IT projects, including the assignment of technical staff and support of all Change Management Policy requirements.

The Network Security Engineer leads a firewall and network infrastructure engineering team that designs, administers, plans, schedules, integrates, and troubleshoots all aspects of the security appliances, and special projects - working with engineers on network security. This position reports to the Project Executive.

Responsibilities

· Manage end-to-end lifecycle and delivery of various infrastructure technologies and day-to-day activities of the network team

· Schedules staff to support 16x5 on-site support

· Identify, track, and report statuses of risks and Incidents to the client

· Act as escalation point for Incidents/Problems/Known Errors and Knowledge Management as conducted within the ITIL framework

· Manage performance, capacity, and availability to meet SLRs/SLAs

· Collaborate with Data Center and Application owners to ensure redundancy, resiliency, and fail over capability

· Coordinate deployment of tools to monitor the IT infrastructure and related applications

· Develop project plans with expected budgets and completion dates for security appliance centric projects

· Oversee the preparation design, engineering, and security plans and schedules to support new and enhanced applications, architectures, and standards in evolving IT environment

· Ensure all new devices, and software provisioned are included in Configuration Management documentation

· Develop and document administrative procedures that satisfy the client's requirements and policies Approve (or submit for approval) network-related RFCs according to ITIL processes

· Participate in Change Advisory Board (CAB) meetings, including review and approval of planned changes and results of changes made

· Assist team members with technical tasks (design/planning, upgrades, maintenance, configuration, troubleshooting, IMACs, etc.) as appropriate

· Work with developers to design ServiceNow ITSM to support incident management, event management, workflows, reporting and CMDB

· Inventory and track assets, maintenance contracts and licensing

· Produce reporting on SLA adherence, incident management and network performance

· Maintains compliance with PCI, HIPAA, CJIS and other regulations

The Senior Network Security Engineer will manage a technical team with the following responsibilities:

· Manage all devices in accordance with the client's policies (including security oversight and change management policies)

· Document and maintain configuration files, IP addressing schemes, configurations, etc. and maintain the CMDB

· Ensure administration activities adhere to defined Change Management processes

· Limit outages and optimize utilization through proactive analysis of network data and reporting

· Respond to alerts

· Coordinate resolution of problems with external parties

· Responds to security alerts from security monitoring systems and the Security Operations Center

· Serve as the highest level of technical escalation for complex engineering issues.

· Mentor engineering staff through technical reviews, design workshops, and hands-on knowledge transfer.

· Lead proof-of-concept efforts and technical evaluations of network technologies and services.

· Maintain subject matter expertise across security appliance disciplines and industry best practices.

Technical Operations

· Perform advanced troubleshooting and root cause analysis of critical incidents.

· Provide hands-on support during major outages, cybersecurity incidents, and high-priority operational events.

· Participate in configuration reviews and oversee implementation of complex changes.

· Collaborate with engineering teams to resolve performance, capacity, and reliability issues.

Engineering & Implementation

· Design and implement security, and cloud connectivity solutions.

· Lead technical deployments, migrations, upgrades, and integration projects.

· Develop and maintain capacity planning, performance monitoring, and optimization strategies.

· Participate in configuration management and change control activities for enterprise environments.

Security Engineering

· Collaborate with client cybersecurity teams to implement and maintain secure architectures.

· Design and oversee deployment of segmentation, policies, VPN solutions, and secure remote access technologies.

· Ensure infrastructure complies with applicable security standards and regulatory requirements.

Requirements

· 4-year college degree in a related field and/or relevant professional experience

· 7 years of managing experience leading IT engineering teams and NOC in a 1000+ user environment

· 8 years of Technical Operations, Engineering & Implementation, and Security Engineering experience in a 1000+ user environment

· Considerable knowledge of Palo Alto Network and Fortinet systems operations and maintenance, including a good understanding of protocols and tools necessary for effective resolution of maintenance requests and tracking operational processes supporting Dell Compute, SAN, and NAS Technologies and Oracle, Windows, RedHat, Rubrik, Infoblox, and SolarWinds product lines.

· Knowledge of Cybersecurity operations and best practices

· Strong knowledge of ITIL concepts. ITIL certification is a plus.

· Strong interpersonal skills, communication, leadership ability, and teamwork

· Strong client-focus skills with ability to recognize client requirements, assist client in achieving their goals, manage client expectations and consistently achieve high client satisfaction

· Strong organizational and management skills; ability to efficiently manage a variety of multiple concurrent projects simultaneously

· Experience with designing an ITSM system to manage incidents, problems, workflows and to collect metrics required for reporting, preferably on ServiceNow

· Ability to explain complex problems in a simple and clear way and present network issues and changes to stakeholders and executive leadership

· Experience managing support/maintenance agreements and outside service providers

· Experience working with a Security Operations Center