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Design Engineer III – Internet Services DNS

Cox Communications

Atlanta, GA
Job Code:
Cox Communications
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Job Details

Company Cox Communications
Title: Design Engineer III – Internet Services DNS
JobID: 1714591
Category: Engineering
Industry: Cox Communications, Inc.
Job Type: Full-time


Cox Communications is searching for a Design Engineer III – Internet Services DNS who will be responsible for research of new technologies and solutions for forward-looking DNS design considerations as platforms evolve. Additionally, this role will assist with life-cycle support for the Production DNS infrastructure (i.e. validating new software upgrades, new security and DNS features, write implementation MOPs for operations staff). This role is expected to collaborate with boundary partners in other organizations (Application Development, Production Development, IT Operations, Networking Engineering, Security and others) to provide guidance for best practice solutions.

Primary Responsibilities and Essential Functions: 

  • Research and evaluation of new DNS features that will provide improved feature functionality and efficiencies to optimize the existing infrastructure.
  • Maintain DNS Engineering lab environments
  • Documentation of system designs, deployment procedures, and troubleshooting procedures.
  • Capacity planning and hardware sizing.
  • Enforcement of systems standards, policies and procedures in regards to hardware and operating system selection, configuration, and deployment.
  • Assist in research and documentation of application best practices for performance, security, and stability.
  • Ability to communicate effectively with business counterparts.




  • 5+ years’ work experience supporting DNS Infrastructure in either an Operations or Engineering role
  • Effective written and verbal interpersonal communication skills. Experienced at writing technical proposals and documentation.
  • Must be Self-Motivated and Results Oriented
  • Experience with Nominum DNS software would be a plus
  • 5 years Linux system administration or system architecture experience.
  • Strong experience with building Linux based servers in a lab environment.
  • Script development with bash or other scripting languages is a plus.
  • Understanding of TCP/IP Networking including OSI Model and basic UNIX system level network troubleshooting skills is a must.
  • Experience in general computing functions and IC properties (i.e. Ternary CAM, DRAM, SRAM, NVRAM, CPU multi-threading, interrupts, CPU efficiency)
  • Experienced well-rounded Telecommunications Engineer. Ability to understand Physical and Data-link layer media properties and implications as they relate to network architecture (i.e. fiber optics, PSTN, HFC, DOCSIS, PON, RF, etc.)
  • Experienced in data communications and networking principles; standards (e.g., ANSI, IETF, IEEE, MPLS&FRF, Nyquist Sampling Theorem, Shannon Information Theorem)
  • Knowledge of the mathematics/physics of data network phenomena relating to network performance: response time, throughput, and availability.
  • Background in lab testing methodology and requirements



  • Familiarity with VMWare/VCloud, IPv6, advanced networking/security, and/or load balancing is a plus
  • Bachelor’s Degree in Computer Science/Engineering is a plus
  • B.S. / M.S in Computer Science/Engineering

About Cox Communications


Cox Communications is a broadband communications and entertainment company, providing advanced digital video, Internet, telephone and home security and automation services over its own nationwide IP network. Cox Business is a facilities-based provider of voice, video and data solutions for commercial customers, and Cox Media is a full-service provider of national and local cable spot and digital media advertising. Cox is known for its pioneering efforts in broadband, voice and commercial services, industry-leading customer care and its outstanding workplaces. Cox Communications, a wholly owned subsidiary of Cox Enterprises, is available at and

Organization: Cox Communications, Inc.

Primary Location: US-GA-Atlanta-6305 Peachtree Dunwoody Rd

Employee Status: Regular

Job Level: Individual Contributor

Shift: Day Job

Travel: No

Schedule: Full-time

Unposting Date: Ongoing
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