Security Engineer

Job DetailsJob Location: Legal Address - Westbury, NY 11590Position Type: Full TimeEducation Level: 4 Year DegreeSalary Range: $90,000.00 - $130,000.00 Salary/yearTravel Percentage: NoneJob Category: Information TechnologySecurity Engineer

About ExpanseFT

ExpanseFT is a payment-processing company with a cloud-native platform and responsibilities under the Payment Card Industry Data Security Standard (PCI DSS). We run a hybrid environment spanning multiple cloud providers and an on-premises data center, and we operate a mature security program with an active incident-response capability, formal change control, and annual third-party assessment.

We're a small, senior, engineering-first team — you'll have significant scope and ownership from day one.

The Role

We're hiring our first dedicated Security Engineer. You'll report to the EVP, Platform & Technology (who currently covers this function) and you'll become the primary operator of our day-to-day security program.

Translation: this is a hands-on, queue-owning role, not a policy-writing or architecture-only role. You'll investigate alerts, tune detections, run vulnerability cycles, coordinate audits, execute access reviews, and own the evidence trail that keeps our compliance program defensible.

What You'll Do

Own the daily security operations queue — triage and investigate alerts and findings across our cloud SIEM, XDR, EDR, and cloud-security-posture tooling. Drive each to closure with documented evidence. Operate the vulnerability management lifecycle — quarterly external scans (ASV), internal authenticated scans, container and Lambda scanning, dependency alerts, and penetration-test follow-through. Track remediation against SLA. Administer endpoint protection across our endpoint fleet — agent deployment, policy tuning, detection quality, and threat response. Run the access-review program — periodic user, privileged, service-account, and third-party access reviews across our identity providers; terminated-user revocation verification; provisioning and deprovisioning execution. Lead incident response as the primary responder for security events — containment, forensics, communications, and post-incident review — with executive escalation where warranted. Own the PCI DSS evidence program — collect, label, and retain audit evidence for our annual QSA assessment. Be the QSA's primary operational point-of-contact during fieldwork. Contribute to detection engineering — write and tune SIEM analytics rules, improve signal-to-noise on high-volume detections, and propose automation improvements. Participate in on-call support for security alerts, including out-of-hours escalation. Deliver annual security-awareness training and support the quarterly personnel review process. Support physical security at our data center facility (visitor logs, device inspections, media destruction, rogue-wireless detection) on a periodic on-site basis.

Environment and Tooling

You will operate a full, modern hybrid security stack. Without naming specific vendor SKUs in this post:

Two major cloud platforms (AWS and Azure), multi-account and multi-subscription, with central logging and security-services aggregation Cloud SIEM and XDR, with a large analytics-rule catalog and KQL as the primary query language Endpoint Detection & Response (EDR) across the fleet; integration with the SIEM Cloud-native security services for threat detection, vulnerability management, and compliance posture Automated patch-management across Windows servers, cloud workloads, and container images An enterprise identity stack with conditional access, governance access reviews, and PIM Ticketing and evidence workflow built on Jira Cloud, with custom automation for recurring compliance tasks and bidirectional integrations with the security stack On-prem perimeter and segmentation with a next-gen firewall and segmented VLANs

You don't need hands-on experience with every single product — you do need to have operated a comparable stack at a comparable scale in a regulated environment.

Required Qualifications

4+ years in Security Operations (L2/L3), Security Engineering, or a closely related role, in a regulated environment (payments, finance, healthcare, or equivalent) Hands-on experience operating AWS security services (e.g., Security Hub, GuardDuty, Inspector, IAM) in a multi-account setup Hands-on experience with a cloud SIEM, including KQL (Kusto Query Language) or equivalent query fluency; comfortable writing and tuning analytics rules, not just consuming them Experience administering an EDR platform (SentinelOne, Defender for Endpoint, CrowdStrike, or equivalent) Demonstrable experience running a vulnerability management lifecycle under SLA — scan, triage, evidence, remediation tracking Working knowledge of PCI DSS v4.0 (requirements 5, 7, 8, 9, 10, 11, and 12 in particular), or substantively equivalent experience with SOC 2, ISO 27001, HITRUST, or NIST CSF Proficient in at least one scripting language for operations automation — Python, Bash, or PowerShell — plus comfort with jq, AWS CLI, and az CLI Strong written communication — you will be the voice of security in tickets, runbooks, and audit evidence a QSA reads a year later Able to work the queue independently, prioritize under SLA pressure, and escalate proactively

Nice to Have

One or more: CISSP, GIAC (GCIH, GCED, GMON, GCDA, GSEC), AWS Security Specialty, Azure Security Engineer Associate (AZ-500), CompTIA CySA+ Prior role as the evidence point-of-contact on a PCI DSS QSA engagement Experience with open-source cloud security assessment tooling (e.g., Prowler, Steampipe, CloudQuery, cfn-nag, checkov, tfsec, trivy) Experience reading or contributing to AWS CDK (TypeScript) or Terraform Experience with a next-gen firewall platform (Cisco FTD/FMC, Palo Alto, Fortinet, or equivalent) Experience on a formal on-call rotation (PagerDuty, Opsgenie, or equivalent)

What Success Looks Like

First 90 days: You own the daily and weekly security-operations queue independently, with evidence attached to every closed ticket. You've shadowed a full monthly cycle and proposed at least one improvement. First 6 months: You've executed a full quarterly cycle, led at least one incident-response tabletop, and become the primary operational voice of security in our engineering org. First year: You've run a complete annual cycle (external pentest coordination, policy review, risk assessment, training refresh) and been a named evidence owner in our annual external audit.

Compensation and Benefits

Base salary: [Range to be added before posting — mid-to-senior security-engineering market] On-call: Participation in the security on-call rotation (differential TBD) Training and certification budget — annual allocation for at least one major security certification plus a security conference each year Location and schedule — Remote but NY based. As-needed on-site visits to our data center on Long Island— either for scheduled physical-security duties (device inspections, visitor-log audits, media destruction oversight) or to respond to a security incident. These visits are event-driven, not a weekly or monthly commute. Benefits — per ExpanseFT standard package

Document Control

Version

Date

Author

Changes

1.0

2026-04-17

EVP, Platform & Technology

Initial external-facing job description derived from the internal JD (Security-Engineer-Job-Description-2026.md v1.0.1). Redacted all internal program identifiers (PEIT IDs, SECOPS Jira epic keys, automation rule names, filter IDs), internal resource names, workspace and subscription names, exact tool counts, interim-coverage language, and the QSA identity. Replaced internal doc cross-references with high-level narrative. Added EEO statement.

Qualifications