Senior Cloud Security Engineer: Tooling & IaC Lead

RELX INC; Alexandria (VA); Remote; USD 79,000 - 158,000; Full time

Benefits offered by this job

Country-specific benefits

Job summary

RELX INC in the United States seeks a Senior Security Engineer to design, build, and operate security tooling at scale across cloud environments. You will own architecture decisions for platforms, guide junior engineers through reviews, and act as a trusted technical voice with Incident Response, Threat Engineering, and GRC.

This role demands deep hands-on cloud security experience, ownership beyond delivery, and shaping how the team builds and operates security tooling.

Qualifications

• Significant hands-on experience in security engineering or a related field, including designing and operating cloud-native security platforms at production scale.
• Demonstrated ownership of security architecture in AWS (or OCI/Aliyun), including multi-account environments and cross-region/CN considerations.
• Advanced proficiency with Terraform and Infrastructure as Code practices, with experience setting standards and patterns for a team.
• Experience designing and maintaining CI/CD pipelines (e.g. GitHub Actions) for reliability and security.
• Broad, hands-on experience across security tool categories: SIEM, EDR, DLP, PAM, WAF, SOAR, and vulnerability management,
• Proven track record mentoring engineers and leading technical design decisions within a team.
• Advanced scripting and software development skills (e.g. Python), including experience building and operating production services (APIs, cronjobs) on Kubernetes/EKS.
• Practical experience with AI-assisted engineering tools (e.g. GitHub Copilot, Claude Code, Spec-driven development) and sound judgment on where they add the most value.
• Experience with Agile and/or DevOps frameworks, including driving improvements to team process and delivery practices.

Responsibilities

• Leading the design, architecture, and delivery of security platforms and services.
• Owning and evolve Infrastructure as Code standards (Terraform) and CI/CD practices (GitHub Actions) across the team, ensuring reliable, secure, and repeatable deployments.
• Providing technical leadership and mentorship to junior and mid-level engineers, including design review, code review, and guidance on secure engineering practices.
• Driving integration, tuning, and lifecycle management of core security tooling.
• Partnering with Incident Response, Threat Engineering, and GRC to translate emerging threats, incidents, and compliance requirements into engineering solutions and roadmap priorities.
• Championing adoption of AI-assisted engineering practices (e.g. Claude Code, GitHub Copilot) to improve team velocity, code quality, and test coverage.
• Leading troubleshooting and root-cause analysis for security tooling incidents, and drive resilience improvements through capacity planning, disaster recovery planning, and runbook development.
• Representing SENG in architecture reviews and cross-functional technical forums, advocating for secure-by-design and secure-by-default practices.
• Delivering production-ready systems on time and within budget, and hold the team accountable to engineering and security standards.

Skills

Security architecture

AWS multi-account

Terraform IaC

CI/CD pipelines

Python scripting

Kubernetes / EKS

AI-assisted tooling

Agile/DevOps

Mentoring engineers

Threat/IR collaboration

Tools

Terraform

GitHub Actions

Kubernetes

GitHub Copilot

Claude Code

Job description

RELX INC in the United States seeks a Senior Security Engineer to design, build, and operate security tooling at scale across cloud environments. You will own architecture decisions for platforms, guide junior engineers through reviews, and act as a trusted technical voice with Incident Response, Threat Engineering, and GRC.

This role demands deep hands-on cloud security experience, ownership beyond delivery, and shaping how the team builds and operates security tooling.