Senior Security Engineer – Infrastructure & Cloud Security (Networking, AWS, Python) - Phaxis : Job Details

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This range is provided by Phaxis. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

$80.00/hr - $90.00/hr

The hourly rate is $80 to $90 per hour

We are seeking a highly skilled Senior Security Engineer with a strong generalist background to lead and support a range of infrastructure and application security initiatives. This role requires hands-on experience across multiple domains, including cloud security, data protection, systems hardening, and especially core network security.

This is a senior-level role suited for a well-rounded engineer who thrives in dynamic environments, where breadth of knowledge, adaptability, and practical implementation matter more than hyper-specialization. You'll be part of a nimble security team driving key initiatives across the organization.

Responsibilities include:

• Lead and contribute to projects across network security, web and application security, data security, and endpoint/system hardening
• Design, implement, and maintain secure infrastructure, particularly in AWS environments
• Develop internal security tools and automation using Python to enhance visibility, controls, and response
• Implement and assess networking controls such as segmentation, firewall rules, VPNs, proxies, DNS filtering, and traffic inspection
• Perform deep technical reviews of network architectures, cloud security configurations, and system-level controls
• Partner with DevOps and infrastructure teams to improve security in CI/CD workflows, cloud infrastructure, and internal tooling
• Support vulnerability management, configuration management, and log analysis at the network and infrastructure layers
• Help shape and mature security standards and practices across the engineering organization

Requirements:

• 8–12 years of experience in security engineering, infrastructure security, network engineering with a strong security focus
• Solid programming or scripting experience with Python for automation and tooling
• Deep experience securing AWS environments and services (IAM, networking, KMS, CloudTrail, GuardDuty, etc.)
• Strong understanding of core networking concepts and protocols (TCP/IP, routing, switching, DNS, DHCP, firewalls, NAT, VPNs, etc.)
• Experience with network security tooling and techniques such as IDS/IPS, packet analysis, network segmentation, and zero trust networking
• Experience implementing or reviewing infrastructure-as-code (Terraform preferred)
• Comfort operating in a smaller, fast-moving environment where engineers handle end-to-end execution and cross-functional work
• Clear communication skills and ability to work across teams to implement practical, scalable solutions

Nice to have:

• Familiarity with securing containerized environments (EKS, Docker, Kubernetes)
• Understanding of modern endpoint security platforms and mobile device management
• Experience working with log aggregation and SIEM tools
• Exposure to compliance frameworks or regulatory environments (e.g., SOC 2, ISO 27001)

Seniority level

• Seniority levelDirector

Employment type

• Employment typeFull-time

Job function

• Job functionInformation Technology

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