Senior Network Security Engineer

Job Description:

Job Title:             Senior Network Security Engineer

Location :            New York, NY (3-4 days/week onsite- Hybrid) (Only local candidates with a valid ID)

Type:                    Contract

Job Overview

about the role and our mission

The Enterprise Email Security team is responsible for safeguarding the email communications for a complex global organization. Although the current team excels in platform architecture, threat mitigation, incident response, compliance, and governance, we are planning a significant transformation of our infrastructure. This initiative involves expanding from a legacy on-premises environment to a robust, multi-cloud ecosystem across leading global cloud service providers.

While the organization possesses deep security expertise, there is a need for a highly skilled professional in cloud architecture and enterprise IT infrastructure to design and implement secure and resilient cloud solutions.

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.

Key Responsibilities

1. 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.

2. Infrastructure Resiliency & Disaster Recovery (DR)

• Architect high-availability (HA) and disaster recovery topologies across disparate cloud providers to eliminate single points of failure (e.g., active-active cross-cloud replication).
• Develop, document, and test automated failover mechanisms for critical enterprise workloads to ensure zero-downtime objectives.

3. Infrastructure as Code (IaC) & Automation

• Define, build, and maintain the the IaC repository using automation platforms.
• Implement secure CI/CD deployment pipelines (Jenkins,  GitHub Actions) embedded with automated security guardrails and static analysis tools.

4. 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.

Required Skills & Experience

• Enterprise Scale: Minimum 8+ years of experience managing, architecture-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). You know their native networking, identity systems, and edge security controls inside out.
• 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: While you don't need to be a penetration tester, you must thoroughly understand cloud security frameworks and modern identity protocols.
• Scripting & Systems Proficiency: Strong proficiency with Python programming, Shell scripting, and Unix/Linux operating systems.

 

Desired Certifications

(While your hands-on experience matters most, we highly value the following credentials)

• 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 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

Key Attributes

• 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

Why Join Us

• Work on mission‑critical, globally distributed email security platforms
• Solve complex security and compliance challenges at enterprise scale
• Collaborate with highly skilled engineers in a strong engineering culture
• Opportunity to shape the long‑term evolution of enterprise email security architecture