Principal Security Engineer
Principal Security Engineer
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Job Description
We are seeking an experienced and strategic Principal Security Engineer to lead the design implementation and oversight of enterprise-class network and cloud security across our global infrastructure. This role blends deep technical expertise with strategic leadership and focuses on securing our on-premises data centers public cloud platforms and enterprise network edge using best-in-class tools like Palo Alto and Cisco.
This is a hands-on leadership role that influences global security architecture mentors engineers and collaborates with cross-functional teams to protect our digital assets at scale.
Key Responsibilities
Security Architecture & Engineering
- Lead the design and evolution of security controls across hybrid cloud and on-prem environments.
- Architect and implement network segmentation next-gen firewall policies and zero-trust access models.
- Define secure connectivity strategies across WAN remote access data centers and cloud networks.
Technology Ownership
- Serve as SME for Palo Alto Networks firewalls Prisma Access and Panorama.
- Lead security configuration lifecycle management and policy enforcement on Cisco security platforms (ASA ISE Firepower Umbrella).
- Harden security for multi-cloud platforms (AWS Azure GCP) including IAM VPCs firewalls and API security.
Operations & Response
- Lead threat detection and response for network and infrastructure incidents.
- Collaborate with SOC GRC and infrastructure teams to close security gaps and maintain compliance.
- Continuously improve security monitoring alerting and forensics capabilities.
Security Automation & Tooling
- Integrate security into CI/CD pipelines and infrastructure provisioning via Terraform Ansible or Python.
- Automate security posture checks and drift detection in public cloud and data center environments.
- Work with vulnerability management platforms and integrate findings into remediation workflows.
Governance Risk & Compliance
- Define security baselines and configuration standards for networking and infrastructure teams.
- Ensure compliance with frameworks such as ISO 27001 NIST CIS and industry-specific requirements.
- Participate in audits risk assessments and security reviews for new technologies and vendors.
Required Qualifications
- 10 years of experience in infrastructure or network security with 3 years in a principal or lead role.
- Deep expertise in Palo Alto Networks products and Cisco security platforms.
- Strong understanding of cloud security architecture and native security tools in AWS Azure and/or GCP.
- Experience securing on-premise and hybrid data centers including virtualization and SDN technologies.
- Proven experience designing and enforcing enterprise security policies across global networks.
- Solid knowledge of routing/switching protocols (BGP OSPF) VPNs DNS security and NAC.
- Familiarity with SIEM NDR and EDR tools for detection and response.
- Scripting/automation proficiency (Python Bash PowerShell or IaC tools).
Preferred Qualifications
- Certifications such as PCNSE CISSP CCNP Security AWS/Azure Security Specialty.
- Experience with identity federation (SAML OAuth) secrets management and PKI.
- Background in segmentation frameworks (e.g. SCADA/ICS OT security) or data loss prevention (DLP).
- Experience in DevSecOps or cloud-native security tooling.
We are an equal-opportunity employer and do not discriminate because of race color religion sex national origin ancestry marital status veteran status age disability sexual orientation or gender identity or expression or any other legally protected category. InterSystems is an E-Verify Employer in the United States.
About InterSystems
InterSystems a creative data technology provider delivers a unified foundation for next-generation applications for healthcare finance manufacturing and supply chain customers in more than 80 countries. Our data platforms solve interoperability speed and scalability problems for large organizations around the globe to unlock the power of data and allow people to perceive data in imaginative ways. Established in 1978 InterSystems is committed to excellence through its 247 support for customers and partners around the world. Privately held and headquartered in Boston Massachusetts InterSystems has 38 offices in 28 countries worldwide. For more information please visit.
Required Experience:
Staff IC
Employment Type
Full Time
