Senior Security Engineer

7 hours ago

Chennai, Tamil Nadu, India Poshmark Full time ₹ 12,00,000 - ₹ 36,00,000 per year

Security team at Poshmark is responsible for securing our application platform, cloud infrastructure, and IT systems to protect Poshmark and its 60 million Community members. As a AWS and Infrastructure Security Engineer, you will collaborate with other security team members and other stakeholders to design and harden infrastructure, network and access implementing security best practices.

Responsibilities:

  • Design, implement and maintain secure AWS architecture aligned with industry standards, security best practices and CIS benchmarks.
  • Harden corporate IT and SaaS applications (Okta, CrowdStrike, Jamf, etc.) through security best practices and layered defense.
  • Develop and maintain cloud and infrastructure security reference architectures, and policies.
  • Continuously assess and manage vulnerabilities across cloud, infrastructure, and endpoint systems.
  • Conduct regular security gap analyses, security reviews, risk assessments, and drive remediation with system owners.
  • Integrate infrastructure security into CI/CD pipelines and change management processes.
  • Architect and enforce cloud and enterprise IAM controls with Okta and AWS IAM, focusing on least privilege, SSO, and federation.
  • Strengthen endpoint and server protection through configuration management and continuous monitoring.
  • Partner with Engineering, DevOps, SRE, IT, and Compliance teams to ensure security requirements are embedded throughout the infrastructure lifecycle.
  • Help with incident response activities across AWS and corporate environments including detection, investigation, containment, eradication, and recovery.
  • Mentor junior engineers and contribute to a culture of proactive, engineering-driven security.

Requirements:

  • 5+ years of professional experience in Security Engineering, with at least 3+ years focused on AWS Cloud Security or any other public cloud.
  • Demonstrated experience in Enterprise Security technologies (e.g., Okta, CrowdStrike, JAMF, SSO, and related tools).
  • Strong hands-on experience with AWS security services: IAM, WAF,Advanced Shield, GuardDuty, CloudTrail, Macie, Config, Organizations, and Network Firewall, DNS Firewall etc
  • Solid understanding of network security, segmentation, and zero-trust principles.
  • Familiarity with security frameworks and standards (CIS, NIST, ISO 27001, OWASP).
  • Excellent written and verbal communication skills. Ability to work cross-functionally and influence without authority.
  • Strong sense of ownership, accountability, and continuous improvement mindset.
  • Preferred Certifications: AWS Certified Security – Specialty, Certified Cloud Security Professional (CCSP) or similar.
  • Bonus: Experience building and deploying security controls and detection mechanisms as code using Terraform, Python, or similar automation frameworks.

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