356 security systems engineer jobs at 215 companies in Fairfield, CT
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Senior Systems Engineer
Long Island City, New York, United States
OnsiteFull Time
5+ YOEBachelor's in EE/CE or similar, 5+ years relevant experience, ~25% domestic travel, experience with RF, networking, system design, Windows/Linux, and security; GSEC/SSCP/Security+ preferred.
Windows Server, Linux, Virtual machine servers, MPLS, T1, Fiber Optic, Microwave, Radio Coverage Analysis, Computer Aided Dispatch, Land Mobile Radio Systems, Interoperability Gateway, RF, RF antenna systems, Network Security
2mo
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Data Center Physical Security Systems Engineer
San Francisco or Seattle or Washington or New York City or United States
$205k-$335k/yr RemoteFull Time
15+ YOEDeep expertise in physical security systems and security engineering with 15+ years experience; experience designing and implementing access control, video, intrusion, and integrated monitoring across multi-site data centers; ~25% global travel.
2w
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Security Engineer
Bellevue or Menlo Park or Washington or New York City
$271k-$347k/yr OnsiteFull Time
15+ YOE15+ years managing security risk; experience with distributed systems, access control, encryption, intrusion detection, system design, threat modeling, engineered controls, and communicating technical risk to senior leadership.
1mo
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Platform Security Engineering, Operating Systems
San Francisco or New York City or Seattle
$320k-$405k/yr HybridFull Time
Deep Linux internals and kernel security knowledge, C and systems programming, eBPF experience, familiarity with SELinux/AppArmor/seccomp, track record fixing OS-level vulnerabilities; bachelor's degree or equivalent.
Linux, SELinux, AppArmor, Linux Security Modules, seccomp, eBPF, C, SEV, TDX, SGX, TPM, HSM
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Principal Security Engineer
San Francisco or Denver or New York City
$240k-$310k/yr OnsiteFull Time
10+ YOE10+ years security engineering experience; architecting secure systems, threat modeling, infra-as-code, and translating HIPAA/SOC2/PCI/HITRUST into engineering requirements; strong technical leadership and communication.
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Staff Engineer, Security
New York City or San Francisco or Seattle or United States
$220k-$240k/yr RemoteFull Time
Deep multi-domain security expertise (product, cloud, data, access governance, detection & response); recent hands-on engineering and system design experience; built security programs at scale; strong communication and ownership.
Gem
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Infrastructure & Security Engineer
New York City, New York, United States
$180k-$250k/yr OnsiteFull Time
6+ YOERequires 6+ years in cloud, infrastructure, or security engineering; expertise in application and cloud security, production systems, CI/CD, monitoring, observability, security tooling, and incident response.
AWS, GCP, CI/CD, SOC 2
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Senior Systems Engineer
New York or United States
OnsiteFull Time
5+ YOE5+ years supporting enterprise storage sales; strong knowledge of DAS/NAS/SAN, file systems, virtualization, high-performance networking, and enterprise security; excellent presentation and communication skills.
DAS, NAS, SAN, file systems, virtualization, high-performance networking, enterprise security, analytics, web frameworks
4d
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Software Engineer — Security
New York City or San Francisco
$220k-$300k/yr HybridFull Time
Requires Python, Go, or similar programming; cloud-native and containerized systems experience; Terraform and AWS architecture; IAM and network security expertise. Experience with security automation, incident response, threat modeling, and compliance frameworks is valued.
Python, Go, Infrastructure as Code (IaC), Cloud Security Posture Management (CSPM), AWS, Kubernetes, Identity and Access Management (IAM), Network Access Control Lists (NACLs), Virtual Private Cloud (VPC), AWS Key Management Service (KMS), Terraform, CI/CD, Amazon Machine Images (AMIs), Secrets Manager, HashiCorp Vault, NIST CSF, ISO 27001, SOC 2, CIS benchmarks, Secure Development Lifecycle (SDLC), Static Application Security Testing (SAST), Software Composition Analysis (SCA), Software Bill of Materials (SBOM), Security Information and Event Management (SIEM), Security Orchestration, Automation and Response (SOAR), GCP, Azure, Zero-trust, Data Loss Prevention (DLP)
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Senior Systems Engineer
New York City, New York, United States
$168k-$255k/yr HybridFull Time
10+ YOEEnterprise systems engineer with 10+ years supporting on‑prem and cloud infrastructure, vulnerability remediation, automation (PowerShell/Python), hybrid architecture, VMware, Windows Server, networking, security tooling, and technical leadership.
Microsoft Windows Server, Microsoft Active Directory, Microsoft Exchange, VMware, Citrix, NetScaler, AWS, Microsoft Azure, PowerShell, Python, AIOps, EDR/XDR, SIEM/SOAR, IAM, MFA, PAM, Microsoft 365, Microsoft Visio, Microsoft Project, Linux, UNIX, SAN, NAS
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Senior Systems Engineer
New York, New York, United States
$180k-$200k/yr OnsiteFull Time
5+ YOE5+ years Microsoft 365/enterprise systems engineering experience; hands-on M365 cross-tenant migrations; strong Entra ID/Azure AD and Power Platform administration; familiarity with email security (DMARC, SPF, DKIM) and ITSM processes.
M365, Microsoft 365, Exchange Online, SharePoint Online, Microsoft Teams, Entra ID, Azure AD, Power Platform, DMARC, SPF, DKIM, Windows Server
2w
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Senior Systems Engineer, Legal Systems
Livingston or New York City or Sunnyvale or San Francisco or Bellevue
$182k-$242k/yr OnsiteFull Time
5+ YOE5+ years supporting legal systems/CLM with Ironclad experience preferred; strong API/integration, workflow automation, analytics, security, and stakeholder communication skills.
Ironclad, Descartes, Brightflag, GenAI
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Principal Cyber Security Engineer, Strategy and Architecture
Carlsbad or Reston or Marlborough or Tempe or San Jose or New York City
$230k-$363k/yr HybridFull Time
10+ YOEBachelor's or Master's in a technical field, 10+ years in security/systems/network engineering, strong risk analysis and secure system design experience, hands-on with enterprise security tools, US citizenship, up to 20% travel.
firewalls, IDS/IPS, PKI, SIEM/SOAR, EDR/NDR, CSPM/CNAPP, zero-trust, NIST, ISO 27001, GDPR, CCPA
2w
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Senior Security Engineer – Digital Assets Platform - VP
New York City, New York, United States
$142k-$213k/yr HybridFull Time
7+ YOERequires 7–10 years of software engineering experience, production Java backend expertise, HSM integration, MPC or threshold signatures, applied cryptography, secure design, distributed systems, and security tooling.
Java, Hardware Security Modules (HSMs), PKCS#11, JCE, JCA, AES-GCM, RSA, ECC, ECDSA, EdDSA, HKDF, PBKDF2, PKI, X.509, OAuth 2.0, JWT, STRIDE, PASTA, SAST, DAST, CI/CD, MPC-CMP, tss-lib
5d
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Physical Security Engineer (US)
Houston or New York City or San Francisco or Seattle
$150k-$175k/yr OnsiteFull Time
8+ YOERequires 8+ years leading complex physical security or infrastructure programs, relevant bachelor's degree or equivalent experience, data center delivery expertise, cross-functional coordination, commissioning, and physical security systems knowledge.
1mo
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Physical Security Engineer, R&D
Austin or New York City or San Francisco or Seattle
$229k-$271k/yr OnsiteFull Time
Design and engineer physical security systems (access control, video, intrusion, perimeter); produce drawings, device schedules and specs; configure access control and VMS; perform site surveys, punch walks, and acceptance testing.
Lenel, Genetec, CAD, Revit
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Systems Engineer - Windows
Chicago or New York City or London
$150k-$250k/yr OnsiteFull Time
10+ YOE10+ years Microsoft-based engineering experience; Ansible, Terraform, PowerShell, Microsoft Graph API, Microsoft Azure, Intune, Autopilot, Entra ID, and Active Directory experience; strong automation, IaC/CaC, and security design skills.
Windows, Ansible, Terraform, PowerShell, Microsoft Graph API, Microsoft Azure, Microsoft Intune, Autopilot, Entra ID, Active Directory
1d
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Security Engineer , Ads Security
New York City or New York or New York
$159k-$213k/yr OnsiteFull Time
3+ YOEBachelor's degree in computer science or equivalent; 3+ years programming experience, 2+ years security code review and systems troubleshooting, plus security vulnerability knowledge.
Python, Ruby, Go, Swift, Java, .Net, C++, HTTP(S), DNS, TCP/IP, AWS, Amazon Web Services (AWS)
2w
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Senior Engineer, Applications Systems
Tampa or New York City
$134k-$200k/yr HybridFull Time
Bachelor's degree or equivalent experience; extensive Windows and Linux systems engineering experience; databases, Azure DevOps, cloud, Python, networking, security tools, enterprise applications, and global support experience.
Windows Server, Linux, RHEL, CentOS, Ubuntu, SQL Server, MongoDB, PostgreSQL, Azure DevOps, Azure, AWS, GCP, Python, Integration Builder, Boomi, TCP/IP, DNS, DHCP, VLANs, Akamai, CyberArk, CrowdStrike, ARM templates, Terraform, Docker, Kubernetes, Azure OpenAI, AWS AI/ML, Google AI
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Distributed Systems Engineer SMTS/LMTS
New York City or San Francisco
$149k-$224k/yr HybridFull Time
Design and deliver scalable, reliable, secure backend distributed systems within the Security ecosystem; hands-on engineering, cross-functional collaboration, and end-to-end ownership with an AI-first mindset.
Salesforce Core, Data Cloud, Tableau Next, ATF, Agentforce
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