This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Security Analyst based in the United States. Join a fully remote security team dedicated to protecting sensitive payment data and maintaining the integrity of modern payment processing systems. As Senior Security Analyst, you will take ownership of day-to-day security operations and compliance activities across a payment gateway and switching environment, including a PCI DSS 4.0.1 cardholder data environment. You will monitor security events, manage identities and access, investigate incidents, and ensure recurring PCI DSS and SOC 2 controls are executed and documented effectively. Working closely with engineering, infrastructure, network, and compliance stakeholders, you will strengthen security controls and improve threat detection capabilities. This hands-on role offers significant autonomy, with responsibility for operational execution, incident escalation, audit readiness, and continuous improvement. You will play a critical part in safeguarding payment information while supporting the reliability and growth of essential financial technology services.