DMZ Engineer

Job ID: 112573
Location: Dallas, Texas  [Remote]
Category: Infrastructure
Employment Type: Contract
Date Added: 05/12/2026
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Role Summary
A senior DMZ Engineer is responsible for designing, implementing, and supporting secure network environments supporting DMZ services such as Internet Hosting, Cloud Integration, Business-to-Business (B2B), Outbound Internet Access, and Remote Access. This role involves collaboration with various lines of business and B2B clients to develop detailed low-level network designs and deliver comprehensive solutions. The engineer will leverage expertise in cloud environments, virtualization, and Software-Defined Networking (SDN) to ensure reliable, secure, and scalable network infrastructures.

Responsibilities

  • Develop and customize DMZ network designs aligned with client-specific requirements and existing IT infrastructures.
  • Conduct thorough testing of network solutions to verify stability, security, and performance before deployment.
  • Prepare detailed documentation, including standard operating procedures, to facilitate client understanding and future operations.
  • Troubleshoot and resolve technical issues during implementation phases, ensuring minimal downtime and enhanced system reliability.
  • Collaborate closely with project managers and cross-functional teams to deliver projects on time and within budget.
  • Monitor post-implementation network performance, applying necessary adjustments and providing ongoing support and optimization.
  • Integrate network solutions with public cloud providers such as MS Azure and AWS, ensuring seamless hybrid connectivity.
  • Implement network virtualization and SDN technologies to optimize network agility and scalability.
  • Configure and manage routing and switching devices, including Cisco, Nexus, and Arista platforms, with proficiency in relevant protocols like BGP, OSPF, Multicast, and VPNs.
  • Develop and utilize automation scripts, utilizing scripting languages and Python for streamlined network management.

Qualifications

  • Bachelor’s degree in engineering, computer science, or related technical field, with relevant technical training.
  • Minimum of 7-10 years of professional experience in network engineering within complex environments.
  • Proven experience Designing DMZ and perimeter network environments.
  • Strong familiarity with cloud integration, especially with MS Azure and AWS platforms, including SaaS connectivity such as M365.
  • In-depth knowledge of network virtualization, SDN, and related technologies.
  • Expertise with routing and switching hardware from Cisco, Nexus, and Arista, including TCP/IP protocols, BGP, OSPF, IPSEC, ISAKMP, and QoS.
  • Hands-on scripting experience, preferably in Python or similar languages, for automation and network management.
  • Good decision-making skills, organized, detail-oriented, and capable of managing high-paced projects.
  • Excellent written and verbal communication skills, with the ability to influence stakeholders at all levels.
  • Willingness to work flexible hours, including weekends, as needed for migration activities.
  • Must be legally authorized to work in the United States.

Publishing Pay Range: $48.00 – $50.00 Hourly
This is a fully remote role and can be performed from an approved location.

About GDH:
At GDH, we believe in the power of people and the importance of caring. Our culture statement, “We care about people,” isn’t just a tagline – it’s the core of everything we do. GDH is a premier staffing and talent solutions company dedicated to helping businesses find the best talent and assisting job seekers in finding their dream jobs.

Who We Are:
GDH, founded in 2001, has grown into a leader in providing staffing solutions across various industries. We specialize in IT across several sectors, connecting top talent with leading enterprises. As a Best of Staffing firm recognized for excellence in client, employee, talent, and women’s services, we pride ourselves on our commitment to quality and service.

GDH Benefits

GDH offers a range of employee benefits that are designed to promote well-being and help maintain a healthy work-life balance. These comprehensive benefits cover various aspects of an employee’s life and aim to enhance their overall experience with the company. Our health benefits include three medical insurance options with access to KISx Card, Zero Card, and HealthJoy concierge services. Other plan offerings include dental, vision, life, disability, supplemental insurance, and pet insurance plans. Enjoy additional perks like holiday pay, 401(k) plan, direct deposit, an employee referral program, work-life balance benefits, a Wellbeats membership, a discounted gym membership program, and more!  For more detailed information on benefits, please go to GDH’s website under the tab for candidates.

GDH provides equal employment opportunities (EEO) to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, gender, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, ancestry, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable federal, state, and local laws. Applicants with disabilities who require an accommodation or assistance in applying and/or for interviewing, please contact our HR Department.

Please visit our notice of collection for California applicants.

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