Senior Multi-Cloud Infrastructure & Security Architect

Position: Senior Multi-Cloud Infrastructure and Security Architect Location: New York, New York Duration: Contract Job ID: 179886Job 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, GitHub 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 - SpecialtyMicrosoft Certified: Azure Solutions Architect Expert / Azure Security Engineer AssociateCCSP (Certified Cloud Security Professional) or equivalent infrastructure-focused certificationsPreferred / Plus Qualifications:Familiarity with Secure Email Gateway (SEG) products such as Proofpoint and FortimailFamiliarity with Exchange-Online security products such as Sublime Security and Abnormal Email SecurityExperience with large-scale email broadcast or bulk messaging platformsExposure to compliance frameworks, audits, and regulatory examinationsExperience integrating email platforms with monitoring, logging, and AIOps toolingPrior experience mentoring senior or mid-level engineersKey Attributes:Ability to work independently on complex, ambiguous problemsStrong analytical and troubleshooting skillsExcellent written and verbal communication skillsSelf-driven learner with curiosity for modern tooling and AI-assisted developmentCollaborative mindset with the ability to influence across teams and functionsWhy Join Us:Work on mission-critical, globally distributed email security platformsSolve complex security and compliance challenges at enterprise scaleCollaborate with highly skilled engineers in a strong engineering cultureOpportunity to shape the long-term evolution of enterprise email security architectureAbout PTR Global: PTR Global is a leading provider of information technology and workforce solutions. PTR Global has become one of the largest providers in its industry, with over 5000 professionals providing services across the U.S. and Canada. For more information visit PTR Global, we understand the importance of your privacy and security. We NEVER ASK job applicants to:Pay any fee to be considered for, submitted to, or selected for any opportunity.Purchase any product, service, or gift cards from us or for us as part of an application, interview, or selection process.Provide sensitive financial information such as credit card numbers or banking information. Successfully placed or hired candidates would only be asked for banking details after accepting an offer from us during our official onboarding processes as part of payroll setup.Pay Range: $75- $80The specific compensation for this position will be determined by several factors, including the scope, complexity, and location of the role, as well as the cost of labor in the market; the skills, education, training, credentials, and experience of the candidate; and other conditions of employment. Our full-time consultants have access to benefits, including medical, dental, vision, and 401K contributions, as well as PTO, sick leave, and other benefits mandated by applicable state or localities where you reside or work.If you receive a suspicious message, email, or phone call claiming to be from PTR Global do not respond or click on any links. Instead, contact us directly at View phone number on click.appcast.io. To report any concerns, please email us at View email address on click.appcast.io the hiring process, we may use artificial intelligence (AI) tools to assist in evaluating information related to your application. These tools may help analyze job-related qualifications or assist recruiters in reviewing applications and interview responses. AI-generated information is one factor considered in our hiring process. Final employment decisions are made by qualified hiring personnel and are not based solely on AI-generated recommendations. #LI-HY1Type: ContractCategory: Engineering | EngineeringDate Posted: 2026-09-21