Network Security Engineer

Blue Mantis

. Provide technical support for the design and deployment of Network Transformation and Network Operations .

Posted 10/8/2026full-timeRemote • United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in the deployment, configuration, and architectural design of networking technologies, with a strong focus on customer-facing roles. Proficient in troubleshooting network issues and implementing solutions while ensuring compliance with security policies and best practices.

Highest-signal resume keywords

CCNA CertificationFortinet NSE 6 and NSE 7Experience with Azure and AWSKnowledge of Cisco Firepower ServicesExperience with Aruba ClearPass and Aruba Switches

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network DesignNetwork ConfigurationTroubleshooting MethodologyEncryption TechnologiesIPSEC/SSLVPNMPLSBGPOSPFSTPVRF

Soft Skills

Analytical ThinkingDecision-MakingOrganizational SkillsVerbal CommunicationWritten Communication

Tools & Technologies

CiscoJuniperFortinetHPArubaCATOCisco ISEPalo Alto Security ServicesLoad BalancingDNS

Certifications & Qualifications

CCNAFortinet NSE 6Fortinet NSE 7

Industry Keywords

Network TransformationNetwork OperationsData Center DesignEnterprise NetworkingCustomer-Facing Experience

Tech Stack

Tools & technologies

AWSAzureCloudDNS

About the role

Key responsibilities & impact

Provide technical support for the design and deployment of Network Transformation and Network Operations
Assess and deploy relevant technology solutions according to customers’ business, security policy, and application requirements
Work directly with the Senior Network Engineer
Participate in daily network, firewall, and operational support
Troubleshoot network issues and failures using best practices and troubleshooting methodology
Assess situations, find solutions, and implement changes to correct or update network topologies
Provide technical analysis of operational issues and remediations during troubleshooting
Ensure documentation and procedures are followed and updated during active events
Report operational issues and remediations to management
Stay current on emerging technologies and products, attain certifications, and participate in industry events as appropriate
Work with stakeholders to lead problem solving, evolve the system roadmap, and make critical decisions
Provide clear communication and regular updates/reports to management

Requirements

What you’ll need

Minimum of 5 years’ experience in deployment, configuration, and architectural design of networking technologies; 3 years must be in customer-facing positions
Minimum of CCNA or comparable level of knowledge
Ability to work on call rotation as needed
B.S./B.A./M.S. degree or equivalent technical training
Fortinet NSE 6 and NSE 7
Knowledge of Azure and AWS
Experience with Aruba ClearPass, Aruba switches and wireless
Experience with Cisco Firepower Services and Palo Alto security services
Understanding of encryption and SSL/TLS technologies and best practices
Experience working for or with local government, service providers, and/or enterprise customers
Experience in large data center or enterprise/campus designs, architecture, deployment, and configuration with physical and virtual appliances
Familiarity with applications driving modern infrastructure design in private and public cloud
Experience with STP, Nexus vPC, IPSEC/SSLVPN, VRF, MPLS, OSPF, BGP, and multi-homed environments
Datacenter network services including security, load balancing, DNS, and related services at virtual and physical levels
Experience with Cisco, Juniper, Fortinet, HP, Aruba, and CATO products
Wireless networking technologies including Cisco ISE or Aruba ClearPass Policy Manager
IPS/IDS and other NGFW features and capabilities
Ability to write incident and problem record documentation
Strong analytical thinking, decision-making, and organizational skills
Excellent verbal and written communication skills; ability to influence others and build consensus