10 Results for Systems Security Engineer Jobs in Naperville, IL

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Infrastructure & Security Engineer

Naperville, IL
onsite
Permanent / Full Time
120000 - 148000 USD / Yearly
Our client is seeking an experienced Infrastructure Security Engineer to support and secure a hybrid Microsoft environment spanning both on-premises and cloud platforms. This role is ideal for a hands-on professional with deep experience across traditional server and network infrastructure, along with responsibility for enterprise security tooling, threat monitoring, and ongoing security operations. The organization is currently in a hybrid state and actively transforming to a more cloud-centric environment, so this individual will play a key role in both day-to-day operational security and longer-term modernization efforts. Based on general knowledge. Key Responsibilities<ul><li>Manage and secure core infrastructure, including servers, networks, firewalls, switches, VPNs, and related systems in a hybrid on-premises and cloud environment. Based on general knowledge.</li><li>Administer, maintain, and optimize security tools such as endpoint protection, vulnerability management, SIEM, email security, identity and access management, and monitoring platforms. Based on general knowledge.</li><li>Monitor infrastructure and security events, investigate alerts, respond to incidents, and support remediation efforts. Based on general knowledge.</li><li>Partner with infrastructure and leadership teams to strengthen security controls across Microsoft technologies, including Active Directory, Azure, Microsoft 365, and related platforms. Based on general knowledge.</li><li>Support the company’s transition from traditional on-premises infrastructure to cloud-based solutions by helping design and implement secure architectures and best practices. Based on general knowledge.</li><li>Perform vulnerability assessments, patch management coordination, system hardening, and access reviews across servers, endpoints, and network devices. Based on general knowledge.</li><li>Develop and maintain security documentation, standards, procedures, and incident response processes. Based on general knowledge.</li><li>Assist with compliance, audit readiness, and security improvement initiatives. Based on general knowledge.</li><li>Collaborate with internal teams and third-party vendors to ensure reliable infrastructure performance and effective security coverage. Based on general knowledge.</li></ul>
2026-09-22T00:00:00Z

Network Engineer

Deer Park, IL
onsite
Permanent / Full Time
80000 - 100000 USD / Yearly
We are looking for a Network Engineer to support and enhance a secure, high-performing enterprise network environment in Deer Park, Illinois. This role focuses on maintaining core routing and firewall infrastructure, improving connectivity across the organization, and helping ensure reliable network operations. The ideal candidate brings strong hands-on experience with Cisco networking technologies and Palo Alto security platforms, along with a solid understanding of dynamic routing protocols. Responsibilities: • Manage, configure, and optimize Cisco routing infrastructure to maintain dependable and efficient network performance. • Administer Palo Alto and Cisco ASA firewall environments, including rule updates, security policy enforcement, and ongoing performance review. • Monitor network health, identify connectivity or performance issues, and resolve incidents to reduce downtime and service disruption. • Support Border Gateway Protocol (BGP) configuration and troubleshooting to sustain stable external and internal routing paths. • Implement network changes, upgrades, and improvements while following operational standards and security requirements. • Collaborate with technical teams to evaluate network needs, recommend solutions, and support infrastructure-related projects. • Maintain accurate documentation for network architecture, device configurations, and support procedures. • Participate in troubleshooting complex networking problems across routers, firewalls, and related infrastructure components.
2026-09-23T00:00:00Z

Network Engineer

Chicago, IL
onsite
Permanent / Full Time
110000 - 135000 USD / Yearly
We are looking for an experienced Network Engineer to support and enhance enterprise networking operations in Chicago, Illinois. This role focuses on building reliable, secure connectivity across on-premises and cloud-based environments while improving visibility, automation, and operational performance. The ideal candidate will be comfortable working in a fast-paced support setting and will bring strong technical depth across routing, firewalls, wireless infrastructure, and network monitoring. MUST HAVE SOLAR WINDS EXPERIENCE. Responsibilities:• Design and deploy scalable network solutions across campus, wireless, SD-WAN, and cloud environments to meet business and operational needs.• Maintain and troubleshoot complex multi-vendor infrastructure, resolving incidents and service requests within a high-volume, ticket-driven support model.• Strengthen network security by addressing vulnerabilities, coordinating remediation activities, and applying secure configuration standards across network platforms.• Administer and optimize routing, switching, and perimeter security technologies, including Cisco routers, Cisco ASA, and Palo Alto firewalls.• Configure and support dynamic routing protocols such as BGP to ensure resilient and efficient connectivity between internal and external networks.• Develop scripts and automation tools that streamline repetitive operational tasks, improve consistency, and reduce manual intervention.• Implement monitoring and observability capabilities that provide actionable insight into network health, performance, and service availability.• Partner with cross-functional teams to support infrastructure improvements, document technical designs, and advance network operational maturity.
2026-09-09T00:00:00Z

Software Engineering Manager

Chicago, IL
onsite
Permanent / Full Time
150000 - 200000 USD / Yearly
We are looking for a Software Engineering Manager to lead the planning, delivery, and ongoing support of business-critical applications for a legal organization in Chicago, Illinois. This role combines technical leadership with hands-on involvement, guiding application strategy, improving system quality, and partnering with stakeholders to identify practical technology solutions. The ideal candidate brings strong experience in software development, vendor collaboration, and application lifecycle management, along with the ability to translate operational needs into scalable systems. Responsibilities: • Lead the evaluation of business needs and technical requirements to determine the best approach for new or enhanced applications. • Oversee the design, development, testing, deployment, and support of web, intranet, and enterprise applications across all stages of the software lifecycle. • Partner with attorneys, managers, directors, and other stakeholders to recommend technology solutions that improve workflows and align with organizational goals. • Coordinate work delivered by internal teams, external vendors, and software providers to ensure projects meet quality, timing, and performance expectations. • Direct application implementation efforts, including quality assurance processes, issue resolution, and production readiness activities. • Establish and maintain sound data structures and integration approaches that support efficient information flow across enterprise systems. • Provide senior-level technical guidance to the development team, helping resolve complex design, coding, and integration challenges. • Maintain oversight of the technical direction and long-term roadmap for software products supporting practice and administrative functions. • Contribute directly to development and support work when needed to keep initiatives moving and address priority issues.
2026-09-09T00:00:00Z

Software Engineer

Chicago, IL
remote
Permanent / Full Time
135000 - 155000 USD / Yearly
We are seeking a Senior Software Engineer with deep experience in backend Java development and Android application engineering. This role will focus on designing, building, and maintaining scalable backend services while also contributing to Android mobile applications. The ideal candidate brings strong technical expertise, a collaborative mindset, and a passion for delivering reliable, high-quality software. Key Responsibilities<ul><li>Design, develop, test, and maintain backend services using Java and Spring Boot.</li><li>Build and enhance Android applications with a focus on performance, usability, and maintainability.</li><li>Collaborate with product, business, and engineering stakeholders to define technical requirements and deliver solutions.</li><li>Develop RESTful APIs and integrations that support mobile and web-based applications.</li><li>Write clean, efficient, and well-documented code following established coding standards.</li><li>Participate in architecture discussions, technical design reviews, and sprint planning sessions.</li><li>Perform code reviews and contribute to best practices for software quality, scalability, and security.</li><li>Troubleshoot and resolve application, database, and system performance issues.</li><li>Support deployment activities, testing efforts, and ongoing production maintenance.</li><li>Contribute to continuous improvement initiatives across development workflows, tooling, and engineering processes.</li></ul>
2026-09-22T00:00:00Z

SOC Engineer

Chicago, IL
onsite
Permanent / Full Time
95000 - 125000 USD / Yearly
We are seeking a Senior SOC Engineer to help monitor, detect, investigate, and respond to cybersecurity threats across enterprise environments. This role is responsible for strengthening security operations, improving detection capabilities, and supporting incident response efforts to protect systems, networks, and data. The ideal candidate brings deep experience in security operations, threat detection, incident investigation, and security tooling. This person is analytical, collaborative, and able to operate effectively in fast-paced environments where timely response and strong judgment are critical. Key Responsibilities<ul><li>Monitor security events, alerts, and incidents across networks, endpoints, cloud environments, and applications.</li><li>Investigate suspicious activity, triage alerts, and determine severity, impact, and appropriate response actions.</li><li>Lead or support incident response activities, including containment, eradication, recovery, and post-incident analysis.</li><li>Develop, tune, and maintain SIEM use cases, correlation rules, dashboards, and alerting logic.</li><li>Analyze logs and telemetry from multiple security tools to identify threats, anomalies, and indicators of compromise.</li><li>Collaborate with infrastructure, engineering, and IT teams to remediate vulnerabilities and strengthen security controls.</li><li>Conduct threat hunting activities to proactively identify malicious behavior or hidden risks.</li><li>Support the development and maintenance of SOC processes, playbooks, runbooks, and escalation procedures.</li><li>Mentor junior analysts and contribute to the maturity of security operations practices.</li><li>Recommend improvements to detection engineering, incident handling, and operational workflows.</li><li>Prepare incident reports, metrics, and executive-ready summaries for technical and non-technical stakeholders.</li><li>Stay current on emerging threats, attacker techniques, and cybersecurity best practices.</li></ul>
2026-09-22T00:00:00Z

Systems Administrator

Deer Park, IL
onsite
Permanent / Full Time
80000 - 100000 USD / Yearly
We are looking for a Systems Administrator to support and maintain core IT infrastructure in Deer Park, Illinois. This role focuses on ensuring reliable system performance, managing user access, and providing technical support across a Microsoft-based environment. The ideal candidate brings hands-on experience with server administration, desktop support, and virtualization technologies while working effectively in a fast-paced setting. Responsibilities: • Administer and maintain Active Directory services, including user accounts, group policies, and access controls. • Support and troubleshoot Microsoft Windows Server environments to ensure stability, security, and performance. • Provide technical assistance for Windows 10 endpoints, resolving hardware, software, and connectivity issues. • Manage and support Dell hardware platforms, coordinating maintenance and addressing infrastructure-related concerns. • Configure, monitor, and troubleshoot Citrix environments to maintain secure and efficient user access. • Perform routine system updates, patching, and preventative maintenance across servers and workstations. • Investigate system incidents and implement timely resolutions to minimize downtime and business disruption. • Document system configurations, support procedures, and recurring issues to improve operational consistency.
2026-09-23T00:00:00Z

Network/Systems Administrator

Chicago, IL
onsite
Temporary / Contract
42 - 55 USD / Hourly
We are looking for a Network/Systems Administrator to provide onsite support for core infrastructure operations in Chicago, Illinois. This Long-term Contract position focuses on keeping server, virtualization, storage, and network environments stable, secure, and well maintained while partnering with technical teams to resolve issues efficiently. The ideal candidate brings practical experience across VMware, Cisco networking, enterprise storage, and physical cabling, along with a dependable, hands-on approach to day-to-day infrastructure support. Responsibilities: • Manage virtual infrastructure by supporting VMware hosts, clusters, virtual machines, and associated platform components. • Track system health, investigate performance concerns, and carry out scheduled maintenance such as patching, upgrades, backups, and operational checks. • Provide administration for enterprise storage platforms, including monitoring utilization, addressing connectivity issues, and assisting with performance tuning. • Configure and troubleshoot Cisco network equipment, including switch ports, VLAN assignments, and general LAN connectivity. • Install and maintain copper and fiber cabling by tracing lines, labeling connections, organizing runs, and resolving physical network issues. • Perform hardware deployment tasks such as rack installation, equipment replacement, and upkeep of server rooms or network closets. • Diagnose infrastructure problems affecting servers, storage, network services, and user connectivity, escalating complex issues when needed. • Keep technical records current by updating diagrams, asset inventories, procedural documentation, and change history. • Follow established security standards, operational procedures, and change-control practices while coordinating with infrastructure, security, application, and support teams.
2026-10-01T00:00:00Z

Sr. Software Engineer

Chicago, IL
remote
Permanent / Full Time
225000 - 300000 USD / Yearly
We are looking for a Senior Software Engineer to create modern software solutions that connect data, systems, and business workflows into effective digital products. This role is based in Chicago, Illinois, and offers the opportunity to work closely with engineers, product leaders, and client stakeholders to deliver dependable, user-centered platforms. The ideal candidate enjoys building new capabilities from the ground up, solving unfamiliar technical challenges, and improving systems through thoughtful engineering practices. Responsibilities: • Build and release full-stack software products, including backend services, APIs, user interfaces, dashboards, and data-driven features that support operational decision-making. • Connect external and internal platforms by developing integrations, data flows, and synchronization processes across business and analytical systems. • Create automated workflows that streamline coordination between users, software applications, and operational processes. • Collaborate with product and engineering partners to define technical approaches, strengthen delivery methods, and improve long-term solution quality. • Engage directly with users and client stakeholders to gather requirements, validate concepts, and refine functionality based on practical feedback. • Monitor live applications, troubleshoot issues across the technology stack, and enhance system stability and performance in production environments. • Produce technical documentation, architectural guidance, and transition materials that enable client teams to support and expand delivered solutions. • Establish reusable development patterns, deployment methods, and engineering assets that improve efficiency across future engagements.
2026-09-09T00:00:00Z

Process & Systems Analyst

Chicago, IL
onsite
Permanent / Full Time
90000 - 120000 USD / Yearly
The salary range for this position is $90,000 - $120,000 plus bonus, and it comes with benefits, including medical, vision, dental, life, and disability insurance. To apply to this hybrid role please send your resume to [email protected]. Job Description:<ul><li>Lead structured Kaizen cycles focused on throughput, quality and risk reduction.</li><li>Apply relevant Process Management tools (e.g. Lean/Six Sigma tools such as VSM (Value Stream Mapping), SIPOC (Supplier, Input, Process, Output, Customer), 5 Whys, Ishikawa).</li><li>Perform process mining and time‑and‑motion analysis.</li><li>Identify root causes of rework, delays, documentation errors and funding bottlenecks.</li><li>Design and develop To‑Be processes including clear role definitions, handoffs, and service-level expectations. As minimum expected is inclusion of RACI (Responsible, Accountable, Consulted, Informed), SLAs and control points.</li><li>Analyze and document current (“as-is”) processes across all functions – e.g. origination, credit, operations, funding/treasury, and portfolio management.</li><li>Identify inefficiencies (benchmarking against other countries in the network, against the market), bottlenecks, error drivers, and compliance-related risks.</li><li>Support the creation and maintenance of standard operating procedures (SOPs), process maps, and work instructions.</li><li>Serve as the primary process interface between functions (e.g., IT, Risk, Operations, Finance).</li><li>Align process and system requirements with Group standards while ensuring local regulatory and operational needs are met.</li><li>Facilitate cross-functional workshops to align stakeholders on process changes, implementation steps, and responsibilities.</li><li>Translate business requirements into structured change requests for HQ IT teams, or external local providers.</li><li>Define functional requirements, expected outcomes, dependencies, acceptance criteria, and test scenarios.</li><li>Support prioritization of change requests and maintain transparency on timelines and delivery status.</li><li>Coordinate user acceptance testing (UAT) with local teams and document test results.</li><li>Ensure system enhancements support process design, reporting, compliance, and operational efficiency.</li><li>Monitor performance of external systems and service quality, maintaining communication and coordination with external providers (if such).</li><li>Translate gaps into OCR (Optical Character Recognition)/RPA (Robotic Process Automation) and workflow opportunities.</li><li>Build business cases with ROI and risk impact.</li><li>Define data quality rules and reporting requirements</li><li>Monitor and supervise process implementation across teams, ensuring adoption and operational consistency.</li><li>Track and manage implementation progress, risks, open issues, and mitigation actions.</li></ul>
2026-09-17T00:00:00Z

10 results for Systems Security Engineer in Naperville, IL