Senior Multi-Cloud Infrastructure & Security Architect

Position:
Senior Multi-Cloud Infrastructure and Security Architect

Location:

New York, New York
Duration:
Contract
Job

Job Overview:
The Enterprise Email Security team is responsible for safeguarding the email communications of a complex global organization. The team excels in platform architecture, threat mitigation, incident response, compliance, and governance. However, the organization is undergoing a significant transformation, expanding from a legacy on‑premises environment to a robust, multi‑cloud ecosystem across leading global cloud service providers. The company is seeking a Senior Multi‑Cloud Infrastructure and Security Architect for a full-time contractor role.

This individual will serve as a technical leader, translating high‑level security requirements into practical, scalable cloud engineering solutions. The role is critical to ensuring the organization’s systems are robust, resilient, and highly available.

Responsibilities:

• Hybrid & Multi‑Cloud Architecture Design: Architect and implement secure, enterprise‑grade multi‑cloud infrastructure across AWS and Azure (Google Cloud Platform is a plus), ensuring alignment with benchmarks and corporate security policies. Adopt complex hybrid connectivity solutions to link on‑premise and cloud‑based systems. Establish scalable IAM hierarchies, cross‑account trust relationships, and organizational units across multiple cloud tenants.
• Infrastructure Resiliency & Disaster Recovery (DR): Architect high‑availability (HA) and disaster recovery topologies across disparate cloud providers to eliminate single points of failure. Develop, document, and test automated failover mechanisms for critical enterprise workloads to ensure zero‑downtime objectives.
• Infrastructure as Code (IaC) & Automation: Define, build, and maintain the IaC repository using automation platforms. Implement secure CI/CD deployment pipelines (Jenkins, Git Hub Actions) embedded with automated security guardrails and static analysis tools.
• Technical Advisory &
  
  Collaboration:
  
  Serve as the primary subject matter expert (SME) on cloud infrastructure for the core Cyber Security team, translating security objectives into concrete cloud configurations. Collaborate with traditional on‑prem network and sysadmin teams to systematically migrate or extend legacy workloads to the cloud without disrupting active operations.

Qualifications:

• Enterprise Scale: Minimum 8 years of experience managing, designing, and deploying IT infrastructure within a Fortune 500 or equivalent large‑scale enterprise.
• Multi‑Cloud Mastery: Deep, hands‑on production experience with at least two major cloud vendors (AWS and Azure are highly preferred). Expertise in their native networking, identity systems, and edge security controls.
• Networking: Strong foundational background in traditional on‑premises networking (firewalls, load balancers, VLANs, proxies) and how those concepts map directly to cloud‑native constructs (VPCs, VNets, Transit Gateways).
• Automation‑First Mindset: Advanced proficiency with automation toolsets.
• Pragmatic Security Knowledge: Thorough understanding of cloud security frameworks and modern identity protocols.
• Scripting & Systems Proficiency: Strong proficiency with Python programming, Shell scripting, and Unix/Linux operating systems.

Desired

Certifications:

• AWS Certified Solutions Architect – Professional / AWS Certified Security – Specialty
• Microsoft Certified:
  Azure Solutions Architect Expert / Azure Security Engineer Associate
• CCSP (Certified Cloud Security Professional) or equivalent infrastructure‑focused certifications

Preferred / Plus

Qualifications:

• Familiarity with Secure Email Gateway (SEG) products such as Proofpoint and Fortimail
• Familiarity with Exchange‑Online security products such as…