Senior Network Security Engineer
GTN Technical Staffing
Job Description
Job Description
Senior Network Security Engineer
Location: Dallas, TX (Hybrid – Uptown)
Type: Direct Hire
• Base salary + performance bonus
• 100% company-paid benefits
Overview
This organization operates at the forefront of high-performance computing (HPC) and cloud infrastructure, building and scaling mission-critical platforms that support advanced research, AI/ML workloads, and large-scale data processing. Backed by strong leadership and investment, the company is focused on delivering next-generation infrastructure that accelerates innovation and eliminates friction across compute and data environments.
We are seeking a Senior Network Security Engineer to lead the design, implementation, and optimization of a hyperscale network security environment. This role combines deep technical expertise with leadership responsibilities, driving security architecture, incident response, and automation initiatives across a complex, high-availability infrastructure.
You will play a key role in securing distributed HPC and cloud environments, partnering closely with network engineering, platform, and DevOps teams to embed security into every layer of the stack.
Key Responsibilities
Security Architecture & Engineering
• Design and implement scalable network security architectures across on-prem and cloud environments
• Lead segmentation strategies, Zero Trust initiatives, and secure network design for HPC and distributed systems
• Manage and optimize firewalls, proxies, VPNs, and advanced threat protection platforms
Technical Leadership & Escalation
• Serve as a senior escalation point for complex security incidents and network threats
• Mentor junior and mid-level engineers, providing guidance on troubleshooting and architecture decisions
• Lead root cause analysis and drive corrective and preventative actions
Automation & Infrastructure as Code
• Develop and implement automation for security infrastructure provisioning and lifecycle management
• Build playbooks and frameworks using Python, Terraform, Ansible, and vendor APIs
• Drive adoption of automation tools such as AlgoSec, Tufin, Jenkins, and Git-based workflows
Security Operations & Risk Management
• Oversee vulnerability assessments, penetration testing coordination, and remediation efforts
• Develop and maintain security policies, threat models, and governance frameworks
• Partner with cross-functional teams to embed security best practices across infrastructure and application layers
Required Experience
• 8+ years of experience in network engineering and network security, including architectural responsibilities
• Proven experience designing and securing trusted, untrusted, and DMZ environments
• Strong expertise in TCP/IP, routing, switching, load balancing, and OSI model fundamentals
• Deep knowledge of network security technologies, including firewalls, VPNs, proxies, IPsec, MACsec, TLS/ DNS, NTP, and AAA
• Hands-on experience with leading security vendors such as Palo Alto, Fortinet, Check Point, and F5
• Experience implementing Zero Trust architectures and segmentation strategies
• Strong scripting/automation experience with Python, Terraform, or Ansible
• Experience securing cloud environments (AWS and/or Azure)
Preferred Experience
• Experience with EVPN/VXLAN-based data center architectures
• Background supporting hybrid or multi-cloud environments at scale
• Exposure to M&A integrations and network/security consolidation efforts
• Experience building or working with SOC environments or MSSPs
• Firewall policy automation and orchestration experience
• Relevant certifications such as CISSP, CCIE Security, GIAC (GSEC, GCIH, GXPN), or vendor-specific certifications
GTN is the leader in SOW management & technical staffing, leveraging innovation to drive next-generation recruiting to Fortune 200 companies.
Company Description
GTN is the leader in SOW management & technical staffing, leveraging innovation to drive next-generation recruiting to Fortune 200 companies.
- ...Sr Network Security EngineerGlobal Software Firm seeks a Sr Network Security Engineer.We're looking for an engineer with strong Palo Alto, F5, and WAF experience. Experience in threat hunting and pen testing would be a plus.This is a permanent direct hire opportunity....SeniorPermanent employmentRemote work
$65 - $70 per hour
...Senior Network Security Engineer / Intrusion SpecialistLocation: Addison, TX / Charlotte, NC / Denver, CO Work Arrangement: Fully Onsite Client Industry: Banking Duration: 12-18 Months Contract Schedule: Monday to FridayAbout the RoleWe are hiring a Senior Network Security...SeniorHourly payContract workTemporary workRemote work- Network Security EngineerNorthMark Compute & Cloud (NMC²) is backed by dedicated leadership and... ...shape the industries of tomorrow. Its engineers build critical infrastructure to eliminate... ...and cross-functional peers, the Senior Security Engineer drives meaningful improvements...SeniorTemporary workFlexible hours
$105.4k - $207.8k
Cisco Network Security Engineer/ Senior Consultant, Strategy, Growth, and TransformationDeloitte's Cyber business is passionate about making an impact with lasting change. Delivering our industry leading services requires fresh thinking and a creative approach. We collaborate...SeniorWork experience placementLocal area$115k - $160k
...people the confidence to reach further. Overview The Cyber Security Engineer supports the development and maintenance of a corporate-wide... ...security logs and events from diverse sources (cloud, network, endpoint) Create technically detailed reports on SIEM Status...Senior- ...eager to be part of an innovative company that’s on a journey to transform the world’s infrastructure. We are seeking a Senior Security Engineer working directly with Endeavour’s IT team and focusing on troubleshooting technical issues, providing solutions, enhancing...SeniorFull timePart timeLocal areaImmediate startRemote workFlexible hours
$145k - $175k
...Later bridges creativity and performance so campaigns don’t just look good—they deliver results. Learn more at later.com . Senior Security Engineer Remote, United States About this position: We're looking for a Senior Security Engineer to strengthen Later's company-wide...SeniorPermanent employmentLocal areaRemote work- ...future of anime! About The Role We are seeking a Senior Enterprise Security Engineer to help design, implement, and mature our enterprise... ...capabilities across endpoints, SaaS, cloud and corporate networks Develop and tune detections, alerts, and automated response...SeniorRemote workFlexible hours
$131k - $169k
...Senior Security Engineer Seeking a development & cloud focused Senior Security Engineer to join our expanding security team. The ideal candidate... ...We're looking for Security Engineers who are confident in network & security fundamentals, driven to grow, and excited by the...SeniorWork at officeWork from homeFlexible hoursDay shift$150k - $160k
...Job Description Job Description Job Title: Senior Cyber Security Engineer Pay: $150,000–$160,000 Location: Remote with 25% travel (... ...security architecture across identity, endpoint, email, network, cloud, and data workloads Lead technical security efforts...SeniorRemote work- ...monitoring and analyzing our organization's security infrastructure, detecting and responding... ...correlating logs, endpoint telemetry, network traffic, identity activity, and threat... ...internal technology teams—including Cloud Engineering, Network Security, IAM, DevOps, and...SeniorWork at office
$136k - $204k
Identity Security Engineer, Identity Platform (Ping)Equinix is the world's digital infrastructure company®, shortening the path to connectivity... ...) is a plusBroad knowledge of enterprise IT across cloud, network, systems, and identity infrastructureSecurity certifications...SeniorFull timeWork at office$105.4k - $207.8k
Position Summary Cyber Palo Alto Networks Security Engineer/ Senior Consultant, Strategy, Growth, and TransformationDeloitte’s Cyber business is passionate about making an impact with lasting change. Delivering our industry leading services requires fresh thinking...SeniorWork experience placementLocal areaRemote work- ...Basic Function HF Sinclair is seeking a Senior Data Security Engineer in Dallas, Texas. Serves as the technical authority responsible for defining and operationalizing the enterprise data security execution model. This role is accountable for translating data security...SeniorWork at office
- ...A technology consulting firm is seeking an experienced Network Engineer to enhance and maintain large-scale network projects in Dallas, Texas... ...recovery experience. This role requires skills in network security, RF tools, and strong documentation capabilities. Competitive...Senior
$102.17k
...across the country. Job Description Join the Trinnex Security Team as a Senior Cyber Security Analyst, where you will operate at the... ...resilient against evolving threats. You will work closely with engineering and development teams to safeguard systems that...SeniorWork experience placementH1b- ...Role - Senior AWS Cloud, DevOps & Security Engineer Contract Dallas, TX Role Summary The engineer will design, build, secure, automate... ...on AWS platform role covering cloud infrastructure, networking, security, automation, CI/CD, observability, managed...SeniorContract work
- ...solutions that meet the current and future needs or our airline, hotel and travel agency customers. Join our journey! Sr. Cyber Security Engineer We are seeking a Sr. Cyber Security Engineer to join our global Cybersecurity team, where innovation knows no borders. This...SeniorWork at officeLocal areaImmediate startFlexible hours
- ...Senior Network Security EngineerNorthMark Compute & Cloud (NMC²) is backed by dedicated leadership and investment, with a clear mission as it... ...enabling breakthroughs that shape the industries of tomorrow. Its engineers build critical infrastructure to eliminate friction in...Temporary workFlexible hours
- ...Network Security EngineerAmpcus Inc. is a certified global provider of a broad range of Technology and Business consulting services. We are in search of a highly motivated candidate to join our talented team. Responsibilities:This role is an SME working remotely to support...For subcontractorRemote work
- Network Security EngineerEFJohnson Technologies is a subsidiary of JVCKENWOOD Corporation, a leading provider of P25 communications solutions... ...Project 25 digital radio products.As a Network Security Engineer you'll design, implement, and enforce comprehensive network and...Remote work
- ...and Business consulting services. We are in search of a highly motivated candidate to join our talented Team. Job Title: Network Security Engineer. Location: Richardson, TX. Responsibilities: This role is an SME working remotely to support the customer and is viewed...For subcontractorRemote work
- ...Position Overview The Network Security Engineer role sits within the Information Technology Department and exists to keep the organization's WAN, LAN, voice, and cloud infrastructure running efficiently, reliably, and securely. While the role retains the full scope...Work at officeRemote workShift work
- ...ROBOTIC PROCESS AUTOMATION LLC is seeking a Workday Financials/PSA Senior Principal Consultant – Global AMS to lead onshore and coordinate with offshore teams, delivering Workday Financials configurations and reporting for a set of client engagements. You will apply AMS...Senior
- ...Job Description Job Description Job Title: Senior Security Engineer Duration : Full Time Location : Cleveland, OH, Pittsburgh, PA, or Dallas, TX. Work Mode : 5 Days Onsite Years Of Exp : 8+ Yrs Future duties and responsibilities Vulnerability Triage...SeniorFull timeImmediate start
- ...Intelligence• Infrastructure & Network Services• Risk Management &... ...Continuity & Disaster Recovery• Security & PrivacySpecialties•... ...for customers. The Security Engineer also plays a key role in the... ...TechnologyExperience level: Mid-Senior LevelIndustry: Staffing And RecruitingSeniorPermanent employmentContract workFor contractorsH1bRemote work
$112k - $209k
...same place.The global law firm of K&L Gates LLP is seeking a Senior Security Engineer to join the firm. The Senior Security Engineer develops,... ...technologies• Possess solid knowledge of enterprise networking, operating systems, network security, and hybrid cloud architectures...SeniorFull timeTemporary workWork experience placementLocal areaRemote work- ...for Cloud architecture and design keeping in consideration the security of the environment. It also covers secure deployment of SaaS... ...services for products from advanced medical devices, to highly engineered aviation systems, to next-generation hardware platform solutions...SeniorWork at officeNight shift
- Kforce has a client that is seeking a Network Security Engineer II in Irving, TX. Key Tasks: * Support and maintain network security technologies and controls across enterprise and cloud environments * Administer and monitor security solutions such as firewalls, intrusion...Temporary work
- ...Palo Alto Network Security Engineer Dallas, TX Onsite Must-Have Skills * Palo Alto Networks NGFW * PAN-OS * Firewall Configuration & Deployment * Security Policies * NAT Rules * QoS Policies * Routing & VPN * Firewall Monitoring & Optimization...Temporary work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Network Security Engineer. Be the first to apply!
- security engineer Dallas, TX
- sr information security engineer Dallas, TX
- information technology security engineer Dallas, TX
- senior cloud security engineer Dallas, TX
- cloud security engineer Dallas, TX
- senior application security engineer Dallas, TX
- application security engineer Dallas, TX
- aws cloud security engineer Dallas, TX
- network security engineer Dallas, TX
- physical security engineer Dallas, TX




