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 (GCP 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.

• 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.

• 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

• Familiarity with Secure Email Gateway (SEG) products such as Proofpoint and Fortimail
• Familiarity with Exchange-Online security products such as Sublime Security and Abnormal Email Security
• Experience with large-scale email broadcast or bulk messaging platforms
• Exposure to compliance frameworks, audits, and regulatory examinations
• Experience integrating email platforms with monitoring, logging, and AIOps tooling
• Prior experience mentoring senior or mid-level engineers

• Ability to work independently on complex, ambiguous problems
• Strong analytical and troubleshooting skills
• Excellent written and verbal communication skills
• Self-driven learner with curiosity for modern tooling and AI-assisted development
• Collaborative mindset with the ability to influence across teams and functions

• Work on mission-critical, globally distributed email security platforms
• Solve complex…