Sr Network Engineer (DNS Infrastructure Engineer)

Description

Under limited supervision, performs one or more of the following activities on the company's internal networks: configuration management, system administration, security administration, network administration, development system implementation, production system implementation. Responds to issues related to environment, hardware, system, and/or software and implements resolution across technology areas. Supports multiple systems simultaneously and provides leadership for large project efforts. Provides support or lead activities related to change management, outage management and/or project management.

Position Overview

We are seeking a Senior DNS Infrastructure Engineer to lead the design, operation, and evolution of enterprise DNS and DHCP services. This role is critical to ensuring the availability, security, and scalability of name resolution and IP address services across the organization’s global infrastructure.

The ideal candidate is a hands‑on technical expert with deep experience in ISC BIND and ISC Kea, capable of serving as a subject matter authority while partnering closely with network, security, and platform teams.

Key Responsibilities

DNS & DHCP Architecture

• Design, implement, and maintain highly available DNS and DHCP services supporting enterprise and mission‑critical workloads
• Architect scalable DNS solutions for multi‑datacenter and hybrid environments
• Serve as the technical lead for DNS/DHCP design decisions and long‑term strategy

DNS Operations (ISC BIND)

• Deploy and operate ISC BIND in authoritative and/or recursive roles
• Manage complex zone architectures, delegation models, and views
• Configure and maintain primary/secondary DNS servers and secure zone transfers
• Lead DNSSEC design, implementation, key management, and rollover procedures
• Optimize DNS performance, reliability, and query handling at scale

DHCP Operations (ISC Kea)

• Deploy and operate ISC Kea DHCP (IPv4 and IPv6)
• Design and manage subnet architecture, address pools, reservations, and options
• Implement and support DHCP high availability and lease persistence
• Integrate DHCP with DNS using secure dynamic updates (DDNS)
• Utilize database backends (e.g., PostgreSQL or MySQL) for lease management

Security & Reliability

• Implement DNS and DHCP security best practices, including:
• DNSSEC
• TSIG‑secured dynamic DNS updates
• Access controls and rate limiting
• Identify and mitigate DNS‑based threats and abuse
• Design and test disaster recovery and failover strategies
• Participate in incident response and root‑cause analysis

Automation & Engineering Excellence

• Develop automation for DNS/DHCP deployment and configuration
• Enforce configuration standards using version control and change management
• Partner with automation teams to integrate DNS into Infrastructure‑as‑Code workflows
• Improve operational efficiency through tooling and process enhancements

Monitoring & Performance

• Implement monitoring, alerting, and logging for DNS/DHCP services
• Analyze trends in query volume, latency, and availability
• Perform capacity planning and scalability assessments

Leadership & Collaboration

• Act as the DNS/DHCP subject matter expert across the organization
• Mentor junior engineers and review technical designs
• Collaborate with network, security, cloud, and application teams
• Provide technical input for audits, compliance reviews, and architectural planning

Preferred Qualifications

• Experience with Anycast DNS deployments
• Hybrid or multi‑cloud DNS integration experience
• Familiarity with IPAM solutions (e.g., Micetro, NetBox or similar)
• Experience migrating from appliance‑based DNS/DHCP platforms
• Scripting experience (Bash, Python, or similar)
• Experience supporting regulated or high‑availability environments

Core Competencies

• Technical leadership and ownership mindset
• Strong analytical and problem‑solving skills
• Clear written and verbal communication
• Ability to explain complex technical concepts to non‑technical audiences
• Calm and effective under operational pressure

Minimum Education

Bachelor's degree in IT-related engineering, computer science or information systems or related field.

Minimum Experience

Five (5) years work experience in engineering or information technology environment. A related advanced degree may offset the related experience requirements.

Domicile Information:

The preferred locations for this position are Collierville, TN or Pittsburgh, PA.

This position is eligible for telecommuting and may be located anywhere within the United States excluding AK, HI and U.S. territories. Depending on your location, for employees who live within a 50-mile radius of a FedEx office location, you may be required to work at a FedEx Campus several times per week. 

Preferred Qualifications:  

Pay Transparency: This compensation range is provided as a reasonable estimate of the current starting salary range for this role across all potential locations. If this opportunity includes multiple job levels, the range is a reasonable estimate of the current starting salary for the lowest level to the current starting salary of the highest level. Actual starting pay would be determined by experience relative to the job, market level, pay at the location for this job and other job-related factors permitted by law. An employee may be eligible for additional pay, premiums, or bonus potential. The Company offers eligible employees health, vision and dental insurance, retirement, and tuition reimbursement.

Pay: 

Additional Details: Application Criteria: Upload current copy of Resume (Microsoft Word or PDF format only) and answer job screening questionnaire.

Pay Transparency:

The compensation listed reflects the pay range or rate of pay reasonably expected for this posted position at the posted location or locations.  If this opportunity includes multiple job levels, the pay information represents the ranges for each level in that job family. Actual pay is determined by several job-related factors permitted by law and relevant to the position, including, but not limited to, experience relative to the job, tenure, market level, pay at the location for this job, performance, schedule, and work assignment. In California, the compensation listed reflects the range or rate of pay reasonably expected for this posted position upon hire.

USA: $6,168.90/mo - $13,571.58/mo, CO: $6,168.90/mo - $13,006.09/mo, CA: $6,511.62/mo - $10,898.39/mo, NJ: $6,511.62/mo - $10,418.59/mo, OH & VT: $6,511.62/mo - $10,744.16/mo, MN: $6,511.62/mo - $12,440.61/mo, IL & NV: $6,511.62/mo - $13,006.09/mo, MD, NY & WA: $6,511.62/mo - $13,571.58/mo, MA: $6,854.33/mo - $13,571.58/mo, RI: $7,539.76/mo - $12,440.61/mo, CT: $7,539.76/mo - $13,006.09/mo, DC & HI: $7,882.48/mo - $13,006.09/mo, NYC: $7,882.48/mo - $13,571.58/mo

For details on our comprehensive benefits, click here.

Federal Express Corporation is an Equal Opportunity Employer including, Vets/Disability.

Reasonable accommodations are available for qualified individuals with disabilities throughout the application process. Applicants who require reasonable accommodations in the application or hiring process should contact recruitmentsupport@fedex.com.

Applicants have rights under Federal Employment Laws:

• Know Your Rights
• Pay Transparency
• Family and Medical Leave Act (FMLA)
• Employee Polygraph Protection Act

E-Verify Program Participant: Federal Express Corporation participates in the Department of Homeland Security U.S. Citizenship and Immigration Services’ E-Verify program (For U.S. applicants and employees only). Please click below to learn more about the E-Verify program:

• E-Verify Notice (bilingual)
• Right to Work Notice (English) / (Spanish)