Endpoint Security Engineer

Job Description

Job Type Full Time Workplace Type Remote in the areas of Morrisville NC or Falls Church VA Clearance TSSCI Must be a US Citizen Benefits Medical dental and vision coverage 401k matching generous PTO paid holidays professional training opportunities and even pet insurance to ensure your furry friends are cared for too Job Summary Castalia Systems is seeking an Endpoint Security Engineer to support our Intelligence Clients mission sets As an Endpoint Security Engineer you will design deploy and operationalize active behavior based endpoint detection and response EDRXDR capabilities across one of the largest private operational fleets in North America Protecting an enterprise comprising 600000 employees and 30000 physical sites you will maintain rigorous security posture across traditional end user computing EUC devices laptop desktop mobile devices \& retail terminals on premise physical \& virtual servers \& containerized workloads and dynamic multi cloud workloads AWS Azure GCP In this role you will balance proactive protection with business continuitypartnering directly with end users and application owners to tune policies and eliminate operational friction while providing tier 3tier 4 technical escalations to Security Operations Center SOC analysts and IT Operations staff during active investigations Roles and Responsibilities A qualified candidate will perform the following duties and responsibilities but are not limited to Fleet Wide Behavioral Defense \& Control Engineering Engineer deploy and maintain Next Gen Antivirus NGAV and Endpoint Detection \& Response EDRXDR agents eg CrowdStrike Falcon Microsoft Defender for Endpoint SentinelOne across hundreds of thousands of heterogeneous endpointsImplement active behavioral protections against zero day malware living off the land binaries LotLBs fileless execution and credential dumpingApplication Owner \& End User Engagement Business Impact Management Serve as the primary technical partner to application owners and business units establishing baseline behavior profiles to minimize false positives performance degradation or operational downtime across critical retail logistics and supply chain applicationsManage allowlisting exception workflows and phased ring deployments canarypilotproduction to ensure silent high efficacy protection without disrupting day to day warehouse or logistics operationsSOC \& IT Operations Event Investigation Support Act as endpoint security escalation lead for SOC analysts during high severity threat detection and response eventsAct as endpoint operations escalation lead for IT administrators during high impact event investigation and remediation effortsPerform advanced host forensics process tree reconstruction memory analysis and script based live remediation eg host isolation automated artifact collection registry rollbacksHybrid \& Multi Cloud Workload Protection Extend endpoint security standards across private data center virtualization layers VMwareNutanix and ephemeral multi cloud infrastructure EC2 Azure VMs Compute Engine containerized hostsControl Efficacy \& Continuous Validation Continuously measure and test security control efficacy using automated attack simulation BAS tools and Purple Team exercisesTrack and report on agent health tamper resistance telemetry pipeline integrity and coverage metrics aligned with enterprise asset management systemsRequired Qualifications A minimum of 7 years of progressive experience in technical cybersecurity engineering or infrastructure security rolesAt least 35 years directly engineering and administering enterprise grade EDRXDR platforms across 50000 endpoints in a distributed hybrid environmentDemonstrated track record supporting active SOC investigations and collaborating cross functionally with system owners in large scale enterprise environmentsBachelors degree in Computer Science Cybersecurity Information Systems or equivalent practical enterprise experienceEDRXDR Engineering Expert level proficiency administering enterprise scale endpoint platforms across Windows macOS Linux distributions and container runtime environmentsBehavioral Analysis \& Threat Hunting Deep mastery of process lineage behavioral IOAs Indicators of Attack Sysmon telemetry and detection authoring using query languages such as SQL KQL Kusto Query Language Splunk SPL or YARAHybrid Infrastructure \& OS Internals Deep understanding of WindowsLinux kernel architectures API hooking hypervisor isolation and multi cloud workload identity integrationsAutomation \& Scripting Strong programmingscripting abilities in PowerShell Python or Bash to orchestrate fleet wide remediations and automate policy compliance at scaleArtificial Intelligence \& Machine Learning Fluency applying appropriate AIML technologies and analytics platforms Splunk Databricks Elastic to streamline andor automate activities including but not limited to research developing documentation and supporting development of executive communications Fluency applying appropriate AIML technologies to automate security activities to improve timeliness or full automation of event response activitiesAbilities \& Core CompetenciesStakeholder Empathy \& Impact Analysis Proven ability to balance stringent security controls with business operational velocity ensuring minimal disruption to end user productivity and mission critical COTSproprietary softwareCrisis Leadership \& Composure Capable of methodically triaging active enterprise threats under pressure and articulating complex host based attacks to executive leadershipOperational Scale Management Mindset geared toward Infrastructure as Code and policy automation rather than manual device by device interventionPreferred Certifications GIAC Certified Enterprise Defender GCED GIAC Certified Incident Handler GCIH or GCFA Forensic AnalystCISSP Certified Information Systems Security ProfessionalPhysical RequirementsWork Environment Normal Office environmentTravel As needed Company Description Castalia Systems is a proven business partner providing mission critical solutions to the Federal Government We provide cutting edge solutions from Securing and Managing Data to Systems Engineering and Development Castalia Systems is a pioneer in Artificial Intelligence Design and Application With our vast knowledge of our customers needs and relevant technology our team is able to bring successful solutions to every mission We are one upping our competitors by providing premium IT solutions and platforms with cutting edge technology so its so evident when you compare us with anyone Disclaimer Castalia Systems is an equal employment opportunity and affirmative action employer and strives to comply with all applicable laws prohibiting discrimination based on race color creed sex sexual orientation age national origin or ancestry physical or mental disability veteran status marital status HIV positive status as well as any other category protected by federal state or local laws All such discrimination is unlawful and all persons involved in the operations of the company are prohibited from engaging in this type of conduct