Network Security Manager

OneMain Financial • Evansville, IN

4d

About The Position

We are seeking a Network Security Manager to lead a team of engineers and contractors responsible for safeguarding the organization’s network and cloud environments. In this role, you'll manage daily operations, guide technical decision-making, cultivate team growth, and ensure the consistent and secure delivery of foundational network-security functions. The ideal candidate is a balanced thinker—technically fluent across modern network-security platforms and skilled in coaching, delegation, prioritization, and cross-team coordination. This is a hands-on leadership role where strategic clarity and operational excellence intersect.

Requirements

• Solid understanding of core networking concepts (routing, switching, TCP/IP, VPNs, DNS, DHCP).
• Proficiency in network-security technologies, including firewalls (on-prem and cloud-native), SASE frameworks, NAC platforms, and microsegmentation.
• Familiarity with cloud architectures and their associated security controls (AWS/Azure).
• Understanding of identity-centric security models and zero-trust architectures.
• Awareness of compliance frameworks and regulatory considerations (e.g., PCI-DSS, FFIEC, SOX).
• Strong leadership and team-building capabilities.
• Effective verbal and written communication, including the ability to translate technical impacts for non-technical audiences.
• Strong analytical and problem-solving skills with attention to detail in risk analysis.
• Skilled prioritization and project coordination across multiple concurrent initiatives.
• Ability to lead incident response activities and drive root-cause analysis.
• Competence in reviewing and validating complex network-security changes.
• Skill in stakeholder communication, negotiation, and expectation management.
• Balance strategic vision with daily operational needs.
• Mentor engineers with diverse skill levels.
• Understand unfamiliar technologies and evaluate their impact.
• Collaborate with cross-functional teams and drive consensus.
• Stay calm and decisive during incidents or high-pressure scenarios.
• Uphold high standards of documentation, process discipline, and operational rigor.
• Bachelor’s degree in Information Technology, Computer Science, Cybersecurity, or related field; equivalent professional experience considered.
• 5+ years in network or network-security engineering roles.
• 1–3 years of technical leadership experience (team lead, senior engineer, or manager).
• Experience managing or operating at least two of the following: firewalls, cloud security controls, SASE, microsegmentation, IPAM, NAC.

Nice To Haves

• Prior experience as a first-level people manager or technical team lead.
• Experience with automation tools (e.g., Ansible, Terraform), scripting, or infrastructure-as-code.
• Certifications such as CISSP, CCNP Security, PCNSE, or equivalent vendor credentials.
• Experience in regulated or high-security environments.

Responsibilities

• Leadership & People Management Manage, mentor, and develop a team of Network Security Engineers and contractors, fostering professional growth and technical depth.
• Delegate daily operational tasks, project work, and service requests based on skillset and priority.
• Conduct performance evaluations, provide coaching, and support career development plans.
• Establish team workflows, documentation standards, and operational best practices.
• Build a culture of accountability, continuous improvement, and technical curiosity.
• Operational Management & Execution Oversee daily operations of the network-security program, including firewall rule management, SASE policy administration, NAC enforcement, IPAM governance, and microsegmentation policies.
• Coordinate incident response for network–security–related events and collaborate with the Cybersecurity, Cloud, and Network Engineering teams.
• Review complex technical implementations for potential risk, impact, or unintended dependencies.
• Ensure changes follow enterprise change-management protocols and undergo proper risk evaluation.
• Maintain the reliable availability of core security platforms, monitor system health, and address operational issues.
• Support hands-on tasks during escalations, outages, or peak project workloads.
• Planning, Prioritization & Cross-Functional Collaboration Partner with architecture, cybersecurity, and infrastructure teams to align network-security strategy with enterprise objectives.
• Prioritize engineering tasks, projects, and backlog items in coordination with PMO or technology leadership.
• Participate in roadmap planning for network-security tooling, automation, and infrastructure modernization.
• Communicate project status, operational updates, and risks to leadership and stakeholders.
• Collaborate with cross-functional teams to evaluate new technologies and design secure network architectures.
• Technical Oversight & Governance Provide subject-matter guidance on firewall architectures, cloud network-security controls, segmentation, packet-flow behavior, and secure network design principles.
• Oversee SASE configuration and policy lifecycle, ensuring visibility, compliance, and performance optimization.
• Manage IPAM governance, including address plans, DHCP/DNS standards, and lifecycle management.
• Oversee NAC platforms, authentication policies, device-profiling logic, and onboarding workflows.
• Ensure microsegmentation policies are aligned with application tiers, risk levels, and least-privilege strategies.
• Validate that security controls meet compliance, audit, and regulatory requirements.
• Promote automation opportunities and reduce manual operational overhead.

Benefits

• Health and wellbeing options including medical, prescription, dental, vision, hearing, accident, hospital indemnity, and life insurances
• Up to 4% matching 401(k)
• Employee Stock Purchase Plan (10% share discount)
• Tuition reimbursement
• Paid time off (15 days’ vacation per year, plus 2 personal days, prorated based on start date)
• Paid sick leave as determined by state or local ordinance, prorated based on start date
• Paid holidays (7 days per year, based on start date)
• Paid volunteer time (3 days per year, prorated based on start date)

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 5,001-10,000 employees