Merchant Industry LLC · 1 day ago
Security Engineer III / Lead
Long Island, NY
Full-time
Onsite
Senior Level, Lead/Staff
$140K/yr - $140K/yr
5+ years expMerchant Industry LLC is a nationwide leader in credit card processing, serving over 20,000 merchants across diverse industries. They are seeking a highly skilled Security Engineer III / Lead to enhance their enterprise security capabilities by leading the deployment and optimization of security technologies and driving threat detection and response.
Credit CardsFinancial ServicesMobile Payments
Responsibilities
Lead administration and optimization of EDR across all endpoints and server ensuring proper deployment, configuration, and continuous monitoring
Manage and maintain DLP platforms, including policy tuning, coverage validation, incident review, and integration with SOC workflows
Oversee vulnerability scanning and risk reporting using Rapid7 InsightVM/InsightIDR, ensuring scan coverage, remediation tracking, and automation where possible
Implement and maintain hardened security baselines across all operating systems using Intune, Group Policy, CIS Benchmarks, and EDR configuration controls
Maintain complete visibility of endpoint and cloud security tool deployment (EDR, DLP, vulnerability scanning, logging agents), ensuring consistent coverage and compliance
Serve as a lead investigator for alerts from EDR, SIEM, Rapid7, DLP, WAF, and cloud-native security platforms
Conduct threat hunting, deep-dive log analysis, malware investigation, and IOC analysis across endpoints and AWS environments
Work closely with NOC, infrastructure, cloud engineering, and endpoint teams to drive rapid and effective response to incidents
Support secure deployment and configuration of AWS services, ensuring alignment with best practices, identity controls, encryption standards, and logging/monitoring (CloudTrail, CloudWatch, GuardDuty, IAM, VPC, KMS)
Partner with cloud and DevOps teams to embed security into CI/CD pipelines, IaC templates, and cloud architecture decisions
Assess cloud workloads for misconfigurations, excessive permissions, and exposure using Rapid7, AWS Config, and native cloud posture tools
Own lifecycle management of security tools, including patching, upgrades, feature enablement, and decommissioning
Monitor new vulnerabilities affecting security systems (EDR, DLP, SIEM, agents, cloud services) and coordinate remediation
Participate in tool evaluations, POCs, vendor assessments, and ongoing modernization efforts
Maintain operational security documentation: SOPs, configuration standards, runbooks, and exception logs
Participate in on-call rotation and provide occasional after-hours support during incidents or maintenance windows
Qualification
Required
Bachelor's degree in Computer Science, Information Security, or equivalent hands-on experience
5+ years of experience in security engineering, endpoint/cloud security, or detection engineering roles
Hands-on experience with EDR platforms, including configuration, policy tuning, deployment, and investigation
Strong experience with DLP technologies, including endpoint DLP, data classification, and incident tuning
Experience with Rapid7 (InsightVM, InsightIDR) including vulnerability scanning, dashboarding, and remediation workflows
SIEM experience (Splunk preferred)—from log onboarding to rule tuning and event analysis
AWS security experience, including IAM, VPC controls, CloudTrail, GuardDuty, CloudWatch, KMS, and S3 security
Strong knowledge of network/web protocols: TCP/IP, HTTP/S, DNS, SSH, IPSec, routing
Advanced experience with malware detection, endpoint forensics, and threat investigation
Proficiency analyzing packet captures and logs using tools such as Wireshark, tcpdump, Nmap, ZAP/Burp, Kali, Metasploit, Kismet, and other security toolkits
Deep understanding of attacker TTPs, detection engineering, and defensive countermeasures
Preferred
Cloud certifications (AWS Security Specialty, Solutions Architect, etc.) or security certifications (GIAC, CISSP, CCNA/CCNP Security, RHCSA/RHCE)
Experience with advanced malware technologies or reverse engineering is a plus
Benefits
Comprehensive health and dental benefits
Paid Time Off (PTO) & Holidays
401K with up to 4% employer match
Performance-based bonuses and incentives
Company
Merchant Industry LLC
Merchant Industry, established in 2007, is a leading nationwide credit card processing service provider.
201-500 employees
H1B Sponsorship
Merchant Industry LLC has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2022 (1)
Funding
Current Stage
Growth StageTotal Funding
unknown2025-09-29Acquired
Leadership Team
C
Chris Benabu
COO / Co-Founder
Leo Vartanov
Co-Founder & Executive Chairman
Recent News
Venture Capital Firms
2025-10-01
2025-07-09
Company data provided by crunchbase