Senior Network Security Engineer

SimSpace Corporation

1d•$135,000 - $205,000

About The Position

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.

Requirements

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

Nice To Haves

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

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

Benefits

Base salary range: $135,000 - $205,000
Opportunity for bonuses tied to company performance and individual contributions
Comprehensive medical, dental, and vision benefits
Savings plans—coverage starts on day one!
Company-paid counseling, coaching, and resources for you and your family through Spring Health
401(k)-retirement savings plan featuring a company match
Unlimited vacation
Dedicated health & wellness days
Paid leave plans
Equity stock options at hire, with annual performance-based grants
$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
LinkedIn Learning membership
Monthly reimbursements for meaningful connections with teammates through our SocialSpace Community
Legal plan coverage
Pet insurance
Wellness reimbursements