Green Card Senior Network Security Engineer Jobs
Senior Network Security Engineer roles qualify for EB-2 and EB-3 green card sponsorship through the PERM labor certification process, which requires employers to document recruitment efforts before filing an I-140 immigrant petition. Network security's designation as a specialty occupation under DOL guidelines strengthens PERM filings, and demand across defense contractors, financial institutions, and cloud infrastructure teams keeps sponsorship active year-round.
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Get Access To All JobsINTRODUCTION
SimSpace serves as an AI Proving Ground where organizations can confidently train, test, and outmaneuver adversaries in any environment. Trusted by allied governments, militaries, enterprises, and research institutions worldwide, SimSpace enables adaptive, AI-ready defenses that stay ahead of evolving threats. Founded in 2015 by experts from U.S. Cyber Command and MIT Lincoln Laboratory, the platform unifies training, testing, and validation in a realistic, live-fire simulation—helping teams evaluate security investments, optimize performance, and compress cyber readiness cycles from months to days.
Why join SimSpace?
We are an organization that is focused on building our culture and mindfully enhancing our atmosphere every day which is why we have collaborated on an integral value system. Our governing philosophy of being Human Centered is deeply embedded within our value system. We apply this philosophy to every one of our internal team members, external clients, and their customers.
How Do We Work?
We believe that people are at the center of everything we do. SimSpace fosters a culture of continuous learning, curiosity, and professional growth. That belief shows up in action: in-house training, internal and external learning platforms, cyber conferences, industry events, and dedicated time for skill development. Our people are empowered to shape their careers - and it shows. Year over year, SimSpace consistently outperforms industry benchmarks in internal mobility, promotions, and total rewards growth.
Who Thrives Here?
We are a team of innovators, protectors, and problem-solvers. We believe diversity of thought and experience fuels better solutions, and we’re committed to building teams that reflect the communities we serve. Whether you’re remote or office-based, you’ll collaborate with talented colleagues across departments and time zones, united by the mission to create a safer digital world.
We invite you to apply today!
The Senior Network Security Engineer position is a senior technology practitioner responsible for the collaborative design, implementation, monitoring, maintenance, and security of enterprise network infrastructure and security platforms across SimSpace corporate offices and data centers across the United States and Europe. This individual will serve as a senior technical resource and subject matter expert for both network and security infrastructure, helping lead operational support, architecture, modernization, and incident response efforts. The role combines traditional network engineering responsibilities with expanded ownership of network security operations, secure access technologies, firewall management, web application protection, and vulnerability management. The successful candidate will possess deep technical expertise in enterprise networking and security technologies, strong analytical and troubleshooting skills, and the ability to lead initiatives and mentor junior engineers. Effective collaboration with infrastructure, cloud, security, and business stakeholders is critical to success in this role.
What You Will Do (Responsibilities)
- Act as the subject matter expert for SimSpace network and network security infrastructure
- Design, implement, support, and secure enterprise network infrastructure and software-defined networking solutions
- Configure and maintain complex VMware environments leveraging NSX-T, DVS, and software-defined networking technologies
- Contribute to the design and implementation of resilient, secure, and scalable network architectures
- Configure and troubleshoot virtual networking, VLANs, VRFs, traffic forwarding, and hybrid cloud connectivity
- Troubleshoot all levels of network connectivity issues including, but not limited to, network outages, switch failures, network performance, network interface card (NIC), cabling, TCP/IP configuration, etc.
- Manage and optimize secure web access technologies including content filtering, secure web proxy, SSL inspection, DLP, and zero-trust remote access platforms
- Administer next-generation firewall infrastructure, including firewall policies, ACLs, NAT, IPS/IDS, VPNs, routing, segmentation, and high-availability configurations
- Manage web application firewall (WAF) and edge security technologies, including rulesets, custom protections, bot mitigation, and application-layer threat prevention
- Perform troubleshooting of complex network and security incidents, including outages, performance issues, routing failures, VPN issues, and security events
- Assist in vulnerability management activities for network and security infrastructure, including performing web application vulnerability assessments using DAST tools, coordinating remediation efforts, and validating corrective actions
- Monitor network and security infrastructure performance and execute corrective actions as needed
- Support centralized logging, security monitoring, alerting, and threat analysis activities across network and security platforms
- Assess existing network and security technologies to identify opportunities for modernization, improved security posture, and operational efficiency
- Maintain documentation, standards, and operational procedures for network and security infrastructure
- Provide technical leadership, mentorship, and guidance to junior engineers and operational staff
- Participate in maintenance activities, infrastructure upgrades, and business-driven technology projects
What You Will Bring (Requirements And Bonus Skills)
- 8+ years of network engineering experience
- 5+ years of hands-on network security or security infrastructure experience
- Strong understanding of enterprise networking concepts, protocols, and infrastructure design
- Strong knowledge of routing, switching, TCP/IP, DNS, VPNs, network segmentation, and secure remote access technologies
- Experience managing next-generation firewalls, secure web gateways, WAFs, and zero-trust security platforms
- Strong hands-on experience with firewall policy management, NAT, IPS/IDS, VPN technologies, and routing protocols including BGP
- Strong understanding of web certificates, PKI, TLS/SSL encryption, certificate lifecycle management, and troubleshooting certificate-related connectivity or inspection issues
- Experience with LAN/WAN design including IP allocations, segmentation, VLAN implementation, and hybrid cloud networking
- Proficiency with packet captures, traffic analysis, and network troubleshooting methodologies
- Experience with centralized logging, SIEM, security monitoring, alerting, and log analysis platforms to support threat detection and incident investigation
- Familiarity with vulnerability management and security assessment tools
- Experience with monitoring and observability platforms
- Ability to lead technical implementations, infrastructure upgrades, and operational initiatives
- Ability to quickly learn and adapt to new technologies and platforms
- Strong written and verbal communication skills
Preferred Qualifications
- Industry certifications such as CISSP, CCNP Security, GIAC, or equivalent
- Experience supporting cloud networking and cloud security platforms
- Experience supporting compliance frameworks such as SOC 2, ISO 27001, or CMMC
- Understanding of how to leverage AI and automation technologies to improve security operations, operational efficiency, threat analysis, and workflow optimization
COMPENSATION
- Base salary range: $135,000 - $205,000 reflecting our confidence in your expertise and impact, with the opportunity for bonuses tied to company performance and individual contributions.
Health & Wellness
Comprehensive medical, dental, and vision benefits, plus savings plans—coverage starts on day one!
Mental Health Support
Access to company-paid counseling, coaching, and resources for you and your family through Spring Health.
Financial Well-Being
Plan for your future with a 401(k)-retirement savings plan featuring a company match.
Flexible Time Off
Take the time you need with unlimited vacation and dedicated health & wellness days. SimSpace provides flexible solutions to meet the diverse work-life needs of team members.
Parental Leave
Paid leave plans to support you and your loved ones during life’s most important moments.
Ownership Opportunities
Equity stock options at hire, with annual performance-based grants—become an invested stakeholder in our shared success.
Referral Rewards
Earn $1,500–$3,500 for every qualified hire through our employee referral program.
Peloton Interactive Wellness Program
Full- and partial-subsidized membership plans and equipment discounts to help you reach your personalized fitness goals.
Continuous Learning
Access a LinkedIn Learning membership to prioritize your personal and professional development.
Social Connections
Monthly reimbursements for meaningful connections with teammates through our SocialSpace Community.
Extra Perks
Legal plan coverage, pet insurance, wellness reimbursements, and more to simplify life’s details.
Join SimSpace and enjoy benefits that enhance your career, health, and happiness!
SimSpace Is An Equal Opportunity Employer
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.
SimSpace is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws. We are committed to providing an inclusive and welcoming environment for all members of our staff, clients, volunteers, subcontractors, vendors, and clients.
Research shows that women and people from underrepresented groups only apply to jobs if they meet all of the qualifications. However, no one ever meets 100% of the qualifications. SimSpace encourages you to break that statistic and to apply. We look forward to your application!
We also consider qualified applicants regardless of criminal histories, in accordance with applicable law. We are committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or accommodation due to a disability, please contact careers@simspace.com.
SimSpace does not accept unsolicited resumes from employment agencies.
Actual compensation for the position is based on a variety of factors, including, but not limited to affordability, skills, qualifications and experience, and may vary from the range.
INTRODUCTION
SimSpace serves as an AI Proving Ground where organizations can confidently train, test, and outmaneuver adversaries in any environment. Trusted by allied governments, militaries, enterprises, and research institutions worldwide, SimSpace enables adaptive, AI-ready defenses that stay ahead of evolving threats. Founded in 2015 by experts from U.S. Cyber Command and MIT Lincoln Laboratory, the platform unifies training, testing, and validation in a realistic, live-fire simulation—helping teams evaluate security investments, optimize performance, and compress cyber readiness cycles from months to days.
Why join SimSpace?
We are an organization that is focused on building our culture and mindfully enhancing our atmosphere every day which is why we have collaborated on an integral value system. Our governing philosophy of being Human Centered is deeply embedded within our value system. We apply this philosophy to every one of our internal team members, external clients, and their customers.
How Do We Work?
We believe that people are at the center of everything we do. SimSpace fosters a culture of continuous learning, curiosity, and professional growth. That belief shows up in action: in-house training, internal and external learning platforms, cyber conferences, industry events, and dedicated time for skill development. Our people are empowered to shape their careers - and it shows. Year over year, SimSpace consistently outperforms industry benchmarks in internal mobility, promotions, and total rewards growth.
Who Thrives Here?
We are a team of innovators, protectors, and problem-solvers. We believe diversity of thought and experience fuels better solutions, and we’re committed to building teams that reflect the communities we serve. Whether you’re remote or office-based, you’ll collaborate with talented colleagues across departments and time zones, united by the mission to create a safer digital world.
We invite you to apply today!
The Senior Network Security Engineer position is a senior technology practitioner responsible for the collaborative design, implementation, monitoring, maintenance, and security of enterprise network infrastructure and security platforms across SimSpace corporate offices and data centers across the United States and Europe. This individual will serve as a senior technical resource and subject matter expert for both network and security infrastructure, helping lead operational support, architecture, modernization, and incident response efforts. The role combines traditional network engineering responsibilities with expanded ownership of network security operations, secure access technologies, firewall management, web application protection, and vulnerability management. The successful candidate will possess deep technical expertise in enterprise networking and security technologies, strong analytical and troubleshooting skills, and the ability to lead initiatives and mentor junior engineers. Effective collaboration with infrastructure, cloud, security, and business stakeholders is critical to success in this role.
What You Will Do (Responsibilities)
- Act as the subject matter expert for SimSpace network and network security infrastructure
- Design, implement, support, and secure enterprise network infrastructure and software-defined networking solutions
- Configure and maintain complex VMware environments leveraging NSX-T, DVS, and software-defined networking technologies
- Contribute to the design and implementation of resilient, secure, and scalable network architectures
- Configure and troubleshoot virtual networking, VLANs, VRFs, traffic forwarding, and hybrid cloud connectivity
- Troubleshoot all levels of network connectivity issues including, but not limited to, network outages, switch failures, network performance, network interface card (NIC), cabling, TCP/IP configuration, etc.
- Manage and optimize secure web access technologies including content filtering, secure web proxy, SSL inspection, DLP, and zero-trust remote access platforms
- Administer next-generation firewall infrastructure, including firewall policies, ACLs, NAT, IPS/IDS, VPNs, routing, segmentation, and high-availability configurations
- Manage web application firewall (WAF) and edge security technologies, including rulesets, custom protections, bot mitigation, and application-layer threat prevention
- Perform troubleshooting of complex network and security incidents, including outages, performance issues, routing failures, VPN issues, and security events
- Assist in vulnerability management activities for network and security infrastructure, including performing web application vulnerability assessments using DAST tools, coordinating remediation efforts, and validating corrective actions
- Monitor network and security infrastructure performance and execute corrective actions as needed
- Support centralized logging, security monitoring, alerting, and threat analysis activities across network and security platforms
- Assess existing network and security technologies to identify opportunities for modernization, improved security posture, and operational efficiency
- Maintain documentation, standards, and operational procedures for network and security infrastructure
- Provide technical leadership, mentorship, and guidance to junior engineers and operational staff
- Participate in maintenance activities, infrastructure upgrades, and business-driven technology projects
What You Will Bring (Requirements And Bonus Skills)
- 8+ years of network engineering experience
- 5+ years of hands-on network security or security infrastructure experience
- Strong understanding of enterprise networking concepts, protocols, and infrastructure design
- Strong knowledge of routing, switching, TCP/IP, DNS, VPNs, network segmentation, and secure remote access technologies
- Experience managing next-generation firewalls, secure web gateways, WAFs, and zero-trust security platforms
- Strong hands-on experience with firewall policy management, NAT, IPS/IDS, VPN technologies, and routing protocols including BGP
- Strong understanding of web certificates, PKI, TLS/SSL encryption, certificate lifecycle management, and troubleshooting certificate-related connectivity or inspection issues
- Experience with LAN/WAN design including IP allocations, segmentation, VLAN implementation, and hybrid cloud networking
- Proficiency with packet captures, traffic analysis, and network troubleshooting methodologies
- Experience with centralized logging, SIEM, security monitoring, alerting, and log analysis platforms to support threat detection and incident investigation
- Familiarity with vulnerability management and security assessment tools
- Experience with monitoring and observability platforms
- Ability to lead technical implementations, infrastructure upgrades, and operational initiatives
- Ability to quickly learn and adapt to new technologies and platforms
- Strong written and verbal communication skills
Preferred Qualifications
- Industry certifications such as CISSP, CCNP Security, GIAC, or equivalent
- Experience supporting cloud networking and cloud security platforms
- Experience supporting compliance frameworks such as SOC 2, ISO 27001, or CMMC
- Understanding of how to leverage AI and automation technologies to improve security operations, operational efficiency, threat analysis, and workflow optimization
COMPENSATION
- Base salary range: $135,000 - $205,000 reflecting our confidence in your expertise and impact, with the opportunity for bonuses tied to company performance and individual contributions.
Health & Wellness
Comprehensive medical, dental, and vision benefits, plus savings plans—coverage starts on day one!
Mental Health Support
Access to company-paid counseling, coaching, and resources for you and your family through Spring Health.
Financial Well-Being
Plan for your future with a 401(k)-retirement savings plan featuring a company match.
Flexible Time Off
Take the time you need with unlimited vacation and dedicated health & wellness days. SimSpace provides flexible solutions to meet the diverse work-life needs of team members.
Parental Leave
Paid leave plans to support you and your loved ones during life’s most important moments.
Ownership Opportunities
Equity stock options at hire, with annual performance-based grants—become an invested stakeholder in our shared success.
Referral Rewards
Earn $1,500–$3,500 for every qualified hire through our employee referral program.
Peloton Interactive Wellness Program
Full- and partial-subsidized membership plans and equipment discounts to help you reach your personalized fitness goals.
Continuous Learning
Access a LinkedIn Learning membership to prioritize your personal and professional development.
Social Connections
Monthly reimbursements for meaningful connections with teammates through our SocialSpace Community.
Extra Perks
Legal plan coverage, pet insurance, wellness reimbursements, and more to simplify life’s details.
Join SimSpace and enjoy benefits that enhance your career, health, and happiness!
SimSpace Is An Equal Opportunity Employer
In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.
SimSpace is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, pregnancy, genetic information, disability, status as a protected veteran, or any other protected category under applicable federal, state, and local laws. We are committed to providing an inclusive and welcoming environment for all members of our staff, clients, volunteers, subcontractors, vendors, and clients.
Research shows that women and people from underrepresented groups only apply to jobs if they meet all of the qualifications. However, no one ever meets 100% of the qualifications. SimSpace encourages you to break that statistic and to apply. We look forward to your application!
We also consider qualified applicants regardless of criminal histories, in accordance with applicable law. We are committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or accommodation due to a disability, please contact careers@simspace.com.
SimSpace does not accept unsolicited resumes from employment agencies.
Actual compensation for the position is based on a variety of factors, including, but not limited to affordability, skills, qualifications and experience, and may vary from the range.
See all 61+ Green Card Senior Network Security Engineer Jobs
Sign up for free to unlock all listings, filter by visa type, and get alerts for new Green Card Senior Network Security Engineer Jobs.
Get Access To All JobsTips for Finding Green Card Sponsorship as a Senior Network Security Engineer
Document Your Network Security Certifications Early
PERM labor certification requires your employer to define minimum job requirements before recruitment begins. Certifications like CISSP, CCIE Security, or CEH that appear in your offer letter must match what was advertised, so align your credential documentation to the posted role before PERM is filed.
Target Employers With Active PERM Filing History
Defense contractors, large financial institutions, and cloud infrastructure firms file PERM applications for network security roles regularly. Search DOL PERM disclosure data to confirm an employer has sponsored similar positions, not just software engineering or general IT roles, before investing time in their process.
Verify Whether EB-2 or EB-3 Fits Your Background
EB-2 requires a master's degree or a bachelor's plus five years of progressive experience in network security. EB-3 covers candidates with a bachelor's degree. Your country of birth affects which category gives you a shorter wait, so confirm your priority date outlook with USCIS's Visa Bulletin before accepting an offer.
Use Migrate Mate to Find Sponsoring Employers
Filtering job listings for employers with verified green card sponsorship history saves significant time in a field where many postings omit immigration details. Migrate Mate surfaces Senior Network Security Engineer roles from employers with active PERM and I-140 filing records, so you're applying to positions where sponsorship is already established practice.
Clarify the PERM Job Description Before Signing
PERM locks in the job duties and minimum requirements used during DOL recruitment. If your daily responsibilities differ materially from the certified description, your I-140 petition risks denial. Review the draft PERM application with your employer's immigration counsel before the recruitment period closes.
Account for PERM Audit Risk in Security-Sensitive Roles
DOL audits PERM applications at elevated rates for roles requiring security clearances or classified network access, because mandatory qualifications can appear to restrict the labor market. Employers filing for these positions should expect additional documentation requests, which can extend the PERM timeline by six months or more.
Green Card Senior Network Security Engineer: Frequently Asked Questions
Do Senior Network Security Engineer roles qualify for both EB-2 and EB-3 green card sponsorship?
Yes. EB-2 applies when the role requires a master's degree or a bachelor's degree plus at least five years of progressive specialized experience in network security. EB-3 covers roles requiring a bachelor's degree. Your employer's attorneys determine which category fits the position's minimum requirements, and your country of birth affects which category produces the shorter wait time given current Visa Bulletin priority dates.
How does PERM green card sponsorship differ from H-1B sponsorship for this role?
H-1B visa is a temporary work visa subject to an annual lottery cap, while PERM leads to permanent residency with no annual lottery. PERM requires your employer to complete a formal DOL recruitment process proving no qualified U.S. workers are available, followed by an I-140 immigrant petition filed with USCIS. The total timeline from PERM filing to green card approval typically runs two to four years for most countries, though India and China face longer backlogs.
Where can I find Senior Network Security Engineer jobs where employers are already open to green card sponsorship?
Migrate Mate filters roles specifically by verified PERM and I-140 filing history, so you can identify employers who have sponsored network security positions before rather than guessing from a generic job posting. This is particularly useful in network security, where many postings list clearance requirements or proprietary tool experience that narrows the applicant pool and makes it harder to infer sponsorship willingness from the listing alone.
Can a security clearance requirement affect my PERM application as a foreign national?
Yes, and this is one of the more consequential issues in this field. PERM requires employers to certify that no qualified U.S. workers were available, but if the role requires a clearance that foreign nationals cannot hold, DOL may flag the application for audit or deny it. Employers sometimes structure job descriptions to separate clearance requirements from minimum qualifications, but this approach requires careful legal review before filing.
What happens to my green card process if I change employers mid-filing?
If you change employers before your I-140 is approved, the PERM and I-140 filings are typically abandoned and the new employer must restart the process. If your I-140 has been approved for more than 180 days, portability rules under AC21 may allow you to transfer the priority date and continue the process with a new sponsor in a same or similar occupational classification, which network security roles can often satisfy.