Senior Cyber Security Engineer Remote

A security MSSP focused on protecting organizations from sophisticated email attacks like phishing, business email compromise, and account takeovers, is on the hunt for a visionary Senior Cyber Security Engineer to help build the next generation of security capabilities s full-time, remote position in the USA is a senior individual contributor (IC)-level role that perfectly blends deep technical security expertise with strong engineering fundamentals.

You’ll be instrumental in building integrations between infrastructure and security tooling, automating crucial security workflows, and partnering with cloud and platform engineering teams to harden the cloud environment.

As a technical lead, you’ll own the architecture and development of systems that enhance both preventative guardrails and detective capabilities, all while ensuring security is a proactive partner to stakeholders. You’ll also mentor junior engineers, act as a vital technical liaison across teams, and contribute directly to keeping our client’s platforms and customers secure. This is the ideal role for engineers who are intellectually curious and highly motivated to bridge the gap between security principles and practical engineering execution.

You’re an intellectually curious, solution-focused engineer with a strong security mindset who thrives in fast-paced environments. You are:

• A technical leader who can architect scalable security solutions while maintaining engineering velocity.
• Someone who thinks like an attacker but builds like a defender
  , possessing a deep understanding of both offensive and defensive security principles.
• A collaborative engineer who can seamlessly translate complex security requirements into actionable engineering tasks.
• A dedicated mentor who genuinely enjoys teaching security best practices and automation techniques to junior engineers, fostering their growth and expertise.

As a Senior Cyber Security Engineer, your responsibilities will involve a strategic blend of security architecture, hands‑on automation, incident response, and continuous improvement, all focused on strengthening cloud security within a dynamic environment.

• Lead Threat Modeling and Security Design Discussions: You’ll take the lead in threat modeling and security design discussions with platform teams. This involves proactively identifying potential threats and vulnerabilities in new and existing systems, and meticulously translating these risks into actionable engineering tasks and secure architectural designs. Your input ensures security is embedded from the earliest stages of development.
• Build Scalable Preventative Controls via Infrastructure-as-Code (IaC): You will collaborate extensively with Platform, Infrastructure, and Dev Ops teams to build scalable preventative controls primarily leveraging Infrastructure-as-Code (IaC). This includes using Terraform as a primary tool, with experience in Cloud Formation also being welcome. Your work will ensure security guardrails are automatically enforced, preventing misconfigurations and vulnerabilities at scale.
• Evaluate and Uplift Security Tooling: You’ll be responsible for meticulously evaluating and uplifting existing security tooling across both commercial and cloud-native capabilities. Your focus will be on enhancing their scale, efficiency, and precision
  , ensuring that the security team has the most effective and performant tools to detect, prevent, and respond to threats across a large, dynamic environment.
• Mentor and Support Junior Engineers: You will play a crucial role in mentoring and supporting junior engineers by sharing your deep expertise in automation best practices, secure architecture principles, and tooling integrations. Your guidance will foster their professional development and contribute to the overall strength and capability of the engineering teams.
• Design and Deploy Automation Workflows for Incident Response: You will architect, design, and deploy advanced automation workflows to significantly enhance incident response capabilities. This involves…