Mid Level Senior Network Security Engineer Jobs
Mid level senior network security engineer jobs go to engineers ready to own security projects end to end, mentor junior colleagues, and drive technical decisions with limited oversight. Openings are distributed across on-site, remote, and hybrid settings within Technology & Software, Insurance, and Investment & Asset Management, with employers like GEICO, Deloitte, and Collabera hiring at this level now.
Find JobsOverview
Showing 5 of 68+ Mid Level Senior Network Security Engineer jobs
Title: Network Security Engineer
Location: Chandler, AZ
Alternate Location: Charlotte, NC
Duration: 24 months
Work Engagement: W2
Work Schedule: 3 days in office/2 days remote
Benefits on offer for this contract position: Health Insurance, Life insurance, 401K and Voluntary Benefits
Summary:
We are seeking a Senior Information Security Engineer with a strong background in Network Security, Firewall Engineering, and Security Architecture to support a large enterprise environment. This role will focus on designing, implementing, and managing firewall policies, securing network communications, and ensuring adherence to enterprise security standards and least-privilege principles. The ideal candidate will be a hands-on security engineer with experience supporting both infrastructure and application-related network traffic, collaborating closely with Security Architecture, Infrastructure Engineering, and Principal Engineering teams to identify risks, drive remediation efforts, and strengthen the organization's security posture.
Responsibilities:
Design, implement, refine, and manage firewall rules and policies aligned with least-privilege access principles.
Review and analyze network traffic flows to ensure secure communication between applications, infrastructure, and external services.
Support infrastructure security initiatives and drive remediation of security findings, policy violations, and baseline compliance gaps.
Manage infrastructure security exceptions, risk assessments, and escalations.
Partner with Security Architecture, Infrastructure Engineering, and Principal Engineers to ensure alignment with enterprise security standards.
Evaluate and implement security controls that support confidentiality, integrity, and availability objectives.
Assist with application and infrastructure segmentation strategies to reduce security risk.
Conduct security reviews and provide recommendations based on industry best practices.
Research emerging threats, vulnerabilities, and technologies and recommend appropriate security measures.
Support risk management, threat identification, monitoring, incident response, access management, and business continuity initiatives.
Perform in-depth security analysis and troubleshooting to resolve complex network security issues.
Ensure compliance with corporate security policies, standards, and regulatory requirements.
Required Qualifications:
Applicants must be authorized to work for ANY employer in the U.S. This position is not eligible for visa sponsorship.
4+ years of Information Security Engineering experience.
Strong hands-on experience with Network Security Engineering.
Experience managing and configuring firewalls, firewall rules, security policies, and network segmentation controls.
Demonstrated experience applying least-privilege access principles.
Experience supporting and securing infrastructure environments, not solely application security.
Knowledge of security architecture concepts and application/infrastructure segmentation.
Ability to independently research, analyze, troubleshoot, and resolve security issues.
Strong analytical, problem-solving, and communication skills.
Experience collaborating with cross-functional technical teams.
Preferred Qualifications
Experience in financial services, banking, or other highly regulated environments.
Experience with enterprise-scale security architecture initiatives.
Exposure to risk management and security governance practices.
Familiarity with enterprise infrastructure technologies and hybrid environments.
Experience supporting large-scale firewall environments and complex network architectures.
Title: Network Security Engineer
Location: Chandler, AZ
Alternate Location: Charlotte, NC
Duration: 24 months
Work Engagement: W2
Work Schedule: 3 days in office/2 days remote
Benefits on offer for this contract position: Health Insurance, Life insurance, 401K and Voluntary Benefits
Summary:
We are seeking a Senior Information Security Engineer with a strong background in Network Security, Firewall Engineering, and Security Architecture to support a large enterprise environment. This role will focus on designing, implementing, and managing firewall policies, securing network communications, and ensuring adherence to enterprise security standards and least-privilege principles. The ideal candidate will be a hands-on security engineer with experience supporting both infrastructure and application-related network traffic, collaborating closely with Security Architecture, Infrastructure Engineering, and Principal Engineering teams to identify risks, drive remediation efforts, and strengthen the organization's security posture.
Responsibilities:
Design, implement, refine, and manage firewall rules and policies aligned with least-privilege access principles.
Review and analyze network traffic flows to ensure secure communication between applications, infrastructure, and external services.
Support infrastructure security initiatives and drive remediation of security findings, policy violations, and baseline compliance gaps.
Manage infrastructure security exceptions, risk assessments, and escalations.
Partner with Security Architecture, Infrastructure Engineering, and Principal Engineers to ensure alignment with enterprise security standards.
Evaluate and implement security controls that support confidentiality, integrity, and availability objectives.
Assist with application and infrastructure segmentation strategies to reduce security risk.
Conduct security reviews and provide recommendations based on industry best practices.
Research emerging threats, vulnerabilities, and technologies and recommend appropriate security measures.
Support risk management, threat identification, monitoring, incident response, access management, and business continuity initiatives.
Perform in-depth security analysis and troubleshooting to resolve complex network security issues.
Ensure compliance with corporate security policies, standards, and regulatory requirements.
Required Qualifications:
Applicants must be authorized to work for ANY employer in the U.S. This position is not eligible for visa sponsorship.
4+ years of Information Security Engineering experience.
Strong hands-on experience with Network Security Engineering.
Experience managing and configuring firewalls, firewall rules, security policies, and network segmentation controls.
Demonstrated experience applying least-privilege access principles.
Experience supporting and securing infrastructure environments, not solely application security.
Knowledge of security architecture concepts and application/infrastructure segmentation.
Ability to independently research, analyze, troubleshoot, and resolve security issues.
Strong analytical, problem-solving, and communication skills.
Experience collaborating with cross-functional technical teams.
Preferred Qualifications
Experience in financial services, banking, or other highly regulated environments.
Experience with enterprise-scale security architecture initiatives.
Exposure to risk management and security governance practices.
Familiarity with enterprise infrastructure technologies and hybrid environments.
Experience supporting large-scale firewall environments and complex network architectures.
See All 68 Mid Level Senior Network Security Engineer Jobs
Find roles that match your experience and apply in just a few clicks.
Find JobsMid Level Senior Network Security Engineer Job Market
Who's Hiring
- GEICO4
- Deloitte4
- Collabera3
- SAG-AFTRA FCU3S
- Blue Mantis2B
Top Industries Hiring
- Technology & Software13
- Insurance6
- Investment & Asset Management6
- Education5
- Banking & Financial Services5
Mid Level Senior Network Security Engineer Jobs: Frequently Asked Questions
How do I get a mid level senior network security engineer job?
Position your existing experience around ownership, not just task completion. Highlight projects where you led the technical direction, reduced risk, or improved security posture measurably. Certifications like CISSP, CEH, or Security+ strengthen your application, but concrete examples of firewall architecture, incident response, or zero-trust implementations carry more weight than credentials alone. Tailor each application to the specific threat landscape the employer faces.
Which companies hire mid level senior network security engineers?
Companies hiring mid level senior network security engineers right now include GEICO, Deloitte, and Collabera, based on current listings on Migrate Mate as of July 2026. Hiring at this level comes from a mix of enterprise technology firms, financial institutions, healthcare organizations, and government contractors that need engineers who can operate with real autonomy on complex security infrastructure.
Are there remote mid level senior network security engineer jobs?
Yes, though availability varies by employer and security clearance requirements. About 23% of mid level senior network security engineer openings are remote or hybrid as of July 2026, reflecting strong demand for distributed security talent. Roles involving classified systems or on-premises infrastructure tend to require on-site presence, while cloud security, SOC analyst, and consulting-adjacent positions are more likely to offer flexibility.
How do I move up to a mid level senior network security engineer role?
Progression into mid level typically comes from deepening a specialization, such as cloud security, penetration testing, or network architecture, and taking on projects with broader scope and less supervision over time. Building a record of identifying vulnerabilities, leading remediation efforts, and communicating risk clearly to stakeholders signals readiness. Earning a recognized certification and contributing to team-level decisions accelerates the move from executing tasks to owning outcomes.
Which industries hire the most mid level senior network security engineers?
Mid Level senior network security engineer roles concentrate in Technology & Software, Insurance, and Investment & Asset Management, based on current listings on Migrate Mate as of July 2026. These sectors drive hiring at this level because they manage high-value data, face significant regulatory requirements, and operate infrastructure complex enough to require engineers who can work independently on security design and incident response.