Infrastructure & Network Security Engineer

Revenue3 is seeking a Senior Infrastructure & Network Security Engineer to help design, build, and maintain highly secure enterprise-grade infrastructure and communication systems. The role involves architecting secure connectivity solutions and ensuring compliance with modern security standards while optimizing network performance and reliability.

Responsibilities:

• Design and implement secure, scalable network architectures across cloud and on-premises environments
• Build and maintain high-performance infrastructure supporting global operations
• Develop secure communication solutions across distributed systems and environments
• Evaluate and implement networking protocols, encryption technologies, and security controls
• Ensure seamless integration with existing infrastructure including firewalls, routers, and intrusion detection systems
• Implement and maintain strong authentication and authorization frameworks, including MFA and certificate-based access control
• Design and deploy secure communication channels using modern encryption standards
• Establish and enforce access control policies and security best practices
• Support Zero Trust security initiatives and network segmentation strategies
• Participate in security reviews, threat modeling, and vulnerability assessments
• Monitor and optimize network performance, availability, and latency
• Implement load balancing, redundancy, and failover mechanisms
• Troubleshoot complex networking, infrastructure, and connectivity issues
• Improve system resiliency and operational efficiency through automation
• Support compliance initiatives aligned with frameworks such as ISO 27001, GDPR, HIPAA, or similar standards
• Conduct risk assessments and implement remediation plans
• Stay current on emerging cybersecurity threats and evolving best practices
• Deploy and manage monitoring, logging, and alerting solutions
• Maintain infrastructure through patch management, upgrades, and security updates
• Develop and improve incident response procedures and operational runbooks
• Collaborate with engineering, security, and DevOps teams to support business objectives

Requirements:

• 5+ years of experience in Network Engineering, Infrastructure Engineering, Security Engineering, or related fields
• Strong understanding of networking fundamentals including: Routing & Switching, DNS, TCP/IP, BGP, VPN technologies
• Hands-on experience administering Linux-based systems
• Experience with enterprise firewalls, IDS/IPS platforms, and security monitoring tools
• Experience working with SIEM solutions
• Strong knowledge of cloud platforms such as AWS, Azure, or Google Cloud
• Experience supporting hybrid cloud and on-premises environments
• Experience with scripting and automation using Python, Bash, or similar languages
• Strong troubleshooting and problem-solving skills
• Certifications such as CISSP, CCNP Security, CEH, or equivalent
• Experience with Zero Trust Architecture and Software Defined Perimeter (SDP) concepts
• Familiarity with CI/CD pipelines and deployment methodologies
• Experience with infrastructure automation and security hardening
• Background working within highly regulated or security-sensitive environments