Senior Cybersecurity Engineer

finera. is a PCI DSS Level 1 payment-orchestration platform. We are seeking an experienced, proactive Senior Cybersecurity Engineer to strengthen the security team and protect our infrastructure across endpoint, email, network and web-facing payment platforms. The role combines senior security operations — incident ownership, detection engineering and L2/L3 escalation — with hands-on engineering and administration of the enterprise security stack (EDR, email security, DLP, SASE/VPN, WAF, DDoS). The successful candidate will also be the day-to-day technical owner of our managed out-of-hours detection & response service and will contribute to security governance, architecture and documentation under our PCI DSS programme. This is a senior individual-contributor role for someone who can own incidents end-to-end, raise the maturity and resilience of the function, and operate calmly in a fast-paced, compliance-driven environment.

Responsibilities

• Serve as the senior in-house L2/L3 escalation point during business hours and own incident response end-to-end: triage, containment, eradication, recovery, root-cause analysis and post-incident review.
• Act as technical owner of the co-sourced MDR / managed security service providing out-of-hours L1/L2 coverage — maintain the escalation matrix, validate handoffs and oversee service quality and SLAs across the 24/7 window.
• Operate, tune and harden the enterprise security stack (SIEM/XDR, EDR, email security, DLP, SASE/VPN, WAF, DDoS) and maintain detection content, correlation rules and incident-response playbooks.
• Drive the implementation and evidencing of PCI DSS technical controls (Requirements 1, 4, 5, 7, 8, 10, 11, 12) with the Cybersecurity Lead and QSA, including Cloudflare Layer 7 / WAF / DDoS architecture input.
• Review phishing and suspicious email, investigate malware and anomalous behaviour, handle senior security tickets, and support periodic access reviews and audits.
• Author and maintain SOPs, runbooks and incident reports; mentor operational staff and reduce single-point-of-failure risk.

Requirements

Required Qualifications

• 7+ years’ hands-on experience in cybersecurity / security operations / security engineering, including time in a senior or lead capacity.
• Demonstrated experience implementing and evidencing controls under PCI DSS (and/or ISO 27001, NIST CSF, CIS Benchmarks).
• Proven incident-response ownership across the full lifecycle, from triage to post-incident review.
• Experience working alongside or managing an MDR / managed SOC service, including escalation governance and SLA oversight.
• Degree in Computer Science, Information Security or a related field, or equivalent practical experience.

Required Skills & Competencies

• Deep, hands-on SIEM/XDR and EDR operation, tuning and detection engineering.