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About the Role

Sigma Defense is seeking an Azure Network Engineer with deep Microsoft Azure expertise to own complex connectivity problems involving multiple networks, security boundaries, routing paths, firewalls, and cloud environments. The ideal candidate will design secure solutions that provide required connectivity without unnecessarily expanding the network attack surface.

Responsibilities

Design, implement, configure, and maintain network infrastructure within Microsoft Azure.
Serve as a technical subject-matter resource for Azure networking, routing, connectivity, and firewall technologies.
Design and manage Azure Virtual Networks (VNets), subnets, route tables, User Defined Routes (UDRs), Network Security Groups (NSGs), and Application Security Groups (ASGs).
Configure, maintain, and troubleshoot Azure Firewall, Palo Alto Firewall, and associated firewall policies and rule collections.
Develop and maintain firewall rules governing traffic between applications, networks, environments, and security boundaries.
Design secure network segmentation strategies to control east-west and north-south traffic.
Engineer secure connectivity between multiple Azure environments, subscriptions, VNets, and external networks.
Configure and support VNet peering, hub-and-spoke architectures, VPN connectivity, private endpoints, Private Link, and other Azure connectivity technologies.
Support hybrid connectivity using ExpressRoute and site-to-site VPNs.
Design routing solutions involving firewalls, network virtual appliances, shared services, and multiple security boundaries.
Troubleshoot network connectivity, routing, DNS, firewall, latency, and application communication issues.
Analyze network flows and firewall logs to identify connectivity problems and potential security issues.
Implement network controls supporting Zero Trust architectures and micro-segmentation.
Support automation of Azure network infrastructure using Infrastructure as Code technologies.
Collaborate with cloud architects, infrastructure developers, cybersecurity engineers, application teams, and system administrators.

Requirements

5+ Years of relevant experience.
Professional experience designing, implementing, and supporting Microsoft Azure networking environments.
Strong understanding of TCP/IP, routing, subnetting, DNS, NAT, VPNs, firewalls, and network segmentation.
Hands-on experience configuring and troubleshooting Azure Firewall and Palo Alto Firewall.
Experience designing and managing Azure VNets, subnets, NSGs, route tables, and User Defined Routes.
Experience implementing connectivity between multiple Azure VNets and environments.
Experience troubleshooting complex network-routing and firewall issues.
Understanding of hub-and-spoke network architectures and centralized network-security models.
Experience with Azure Private Link and Private Endpoints.
Understanding of hybrid cloud connectivity and integration between Azure and external networks.
Ability to analyze network traffic, logs, and flow information to diagnose connectivity and security issues.
Experience designing or supporting Azure Government environments.
Experience supporting cloud infrastructure within a Department of Defense (DoD) or other highly regulated environment.
Advanced experience with Azure Firewall Premium and Azure Firewall Policy.
Experience with Azure Virtual WAN (vWAN), ExpressRoute, and Azure VPN Gateway.
Experience with third-party Network Virtual Appliances and next-generation firewall technologies within Azure.
Experience with Palo Alto Networks, Fortinet, Cisco, or similar enterprise firewall platforms.
Experience implementing Zero Trust network architectures and micro-segmentation.
Experience with Azure Network Watcher, Azure Monitor, Log Analytics, Azure DNS, and Private DNS Zones.
Experience automating Azure networking through Terraform, Bicep, PowerShell, Azure CLI, or other IaC technologies.
Familiarity with DoD cybersecurity requirements, RMF, NIST SP 800-53, and STIGs.
Must be a U.S. citizen.
Candidate must possess or have the ability to obtain an active TS/SCI security clearance.
Clearance may be sponsored for the right candidate.

Skills

Microsoft Azure
Azure Firewall
Palo Alto Firewall
TCP/IP
Routing
Subnetting
DNS
NAT
VPNs
Firewalls
Network Segmentation
Azure VNets
Azure NSGs
Azure Route Tables
Azure User Defined Routes
Azure Private Link
Azure Private Endpoints
Hub-and-spoke network architectures
Centralized network-security models
Hybrid cloud connectivity
Azure Government
Azure Firewall Premium
Azure Firewall Policy
Azure Virtual WAN (vWAN)
ExpressRoute
Azure VPN Gateway
Network Virtual Appliances
Next-generation firewall technologies
Palo Alto Networks
Fortinet
Cisco
Zero Trust network architectures
Micro-segmentation
Azure Network Watcher
Azure Monitor
Log Analytics
Azure DNS
Private DNS Zones
Terraform
Bicep
PowerShell
Azure CLI
Infrastructure as Code (IaC)
DoD cybersecurity requirements
RMF
NIST SP 800-53
STIGs

Location

Remote

Work Type

Full-time

Experience Level

5+ Years of relevant experience

Education Level

Bachelor's degree from an accredited college or university in a Network Engineering or related field of study.

Salary/Compensations

$110,000 - $153,000 annually

Benefits

Dental and Vision Insurance
Medical Insurance to Include HSA, FSA, and DFSA Plans
Life and AD&D coverage
Employee Assistance Program (EAP)
401(k) Plan with Company Matching Contributions
160 Hours of Paid Time Off (PTO)
12 (Floating) Holidays
Educational Assistance
Highly Competitive Salary

About the Company

Sigma Defense Systems is an Equal Opportunity Employer.

Equal Opportunity

Equal Opportunity Employer/Veterans/Disabled: Sigma Defense Systems is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.