preply - Senior Security Engineer - Platform
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Requirements
• Strong experience securing cloud and platform environments, especially AWS and Kubernetes, and the ability to extend that security approach into GCP • Hands-on experience driving and delivering technical security initiatives end-to-end in production environments • Strong understanding of the software development lifecycle, and comfort working with CI/CD and infrastructure as code • Practical experience improving identity and access security, with strong familiarity with Okta event monitoring and identity-focused detection patterns • Experience building or maturing security operations capability, especially turning SIEM inputs into reliable operational outcomes (triage, runbooks, tuning, and measurable improvement) • Experience improving logging coverage and signal quality, and building detections that are actionable rather than noisy (experience with Datadog SIEM is a plus) • Strong collaboration skills and the ability to influence decisions across SRE, Data, Engineering, and GRC • Business-oriented mindset and comfort making cost-benefit tradeoffs • Strong communication skills. Minimum C1 English level. • Willingness to participate in on-call rotations and partner effectively with SRE during incidents. • Terraform and infrastructure as code at scale • Jenkins hardening and CI/CD supply chain security controls • Cloudflare security controls (WAF, bot mitigation, edge protections) • Scripting or programming for automation and tooling • Incident response experience in cloud-native environments (AWS and Kubernetes)
Responsibilities
• Own platform security across AWS, Kubernetes, and GCP, with a strong focus on detection, alerting, and incident response readiness • Lead key platform security initiatives end-to-end, from problem definition through rollout and iteration • Act as a strong technical voice in defining how platform security is designed, implemented, and operated at Preply • Evolve our monitoring from “we have a SIEM” to a detection and response capability that is effective, trusted, and actionable • Work hands-on with our current tooling, including Datadog as our SIEM, Okta as our primary IdP, and a range of SaaS platforms • Drive cross-functional platform security initiatives from problem definition to production rollout, partnering with SRE, Data, Engineering, and GRC • Strengthen cloud and platform security across AWS and Kubernetes, with expanding scope in GCP, through practical guardrails, secure patterns, and automation • Improve the robustness of access to internal infrastructure, including identity, privileged access, and auditability • Improve security of Kubernetes deployments, including cluster and workload security, policy enforcement, and secure workload identity patterns • Mature detection and response capability using Datadog • Improve log coverage and data quality (cloud, Kubernetes, CI/CD, identity, and key SaaS) • Build and tune actionable detections with clear severity, ownership, and expected frequency • Reduce noise through correlation, deduplication, enrichment, and continuous tuning • Establish repeatable triage workflows and clear escalation paths, being part of the Security on-call rotations • Create investigation playbooks and runbooks so alerts can be handled consistently and quickly • Partner with Data teams to improve monitoring for suspicious activity and sensitive access patterns, with an emphasis on practical, high-signal alerting • Improve secrets management and reduce exposure risk across CI/CD and runtime • Build security automation that makes the secure path the easy path for engineers
Benefits
• An open, collaborative, dynamic and diverse culture; • A generous monthly allowance for lessons on Preply.com http://Preply.com, Learning & Development budget and time off for your self-development; • A competitive financial package with equity and leave allowance;
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