Calance · 11 hours ago
Infrastructure Lead
United States
Contract
Remote
Senior LevelCalance is seeking a DNS Engineer who will serve as a senior level subject matter expert in DNS. The role involves designing, implementing, and optimizing DNS configurations while ensuring the stability, performance, and security of DNS services.
SoftwareInformation Technology
Hiring Manager
Shashi Parashar
Responsibilities
Create a “Current Design” document of the enterprise DNS IT infrastructure
Highlighting all DNS flows and zone forwarding
Identify every Recursive Server and Authoritative Server, noting where DNS servers exist within the Green and Yellow zone of the network
Leveraging the Current Design Document identify all gaps and opportunities to improve the design and create a gap analysis design document, highlighting all opportunities for improvement for both functionality and security
Create and provide a new enterprise DNS design document that contains all enhancements that address gaps and inefficiencies, focusing primarily on improving the security posture of the DNS infrastructure
Perform peer level reviews with both internal network engineering and security architects
Obtain approval from Security on the new design
Break the new design into a phased approach (each DC will be a separate phase)
Build the new DNS environment in each phase for each DC including testing and validation as well as monitoring and alerting
Complete new build documentation for as build design
Train personnel to maintain the new environment
Create new disaster recovery documents and procedures
Perform disaster recovery testing
Maintain and operate the new design, fixing and addressing any config changes that need to be applied to adjust to new findings
Qualification
Required
Senior level SME in DNS-ideally from a service provider environment
Senior level Linux Administration
DNS Configuration
Bind
Python Scripting & Automation
Ability to perform an end to end assessment and audit of the DNS environment
Post audit deliver an architectural report and provide recommendations and challenge current design
Create a 'Current Design' document of the enterprise DNS IT infrastructure
Highlighting all DNS flows and zone forwarding
Identify every Recursive Server and Authoritative Server, noting where DNS servers exist within the Green and Yellow zone of the network
Leveraging the Current Design Document identify all gaps and opportunities to improve the design and create a gap analysis design document, highlighting all opportunities for improvement for both functionality and security
Create and provide a new enterprise DNS design document that contains all enhancements that address gaps and inefficiencies, focusing primarily on improving the security posture of the DNS infrastructure
Perform peer level reviews with both internal network engineering and security architects
Obtain approval from Security on the new design
Break the new design into a phased approach (each DC will be a separate phase)
Build the new DNS environment in each phase for each DC including testing and validation as well as monitoring and alerting
Complete new build documentation for as build design
Train personnel to maintain the new environment
Create new disaster recovery documents and procedures
Perform disaster recovery testing
Maintain and operate the new design, fixing and addressing any config changes that need to be applied to adjust to new findings
Bind 9.X experience (NAMED configuration experience)
DNS administration experience with an industry leading IPAM (Diamond IP, Infoblox, etc.)
Linux (RHEL 8/9) experience
OS Kernel modifications
OS Access Control Hardening experience
Security policy enforcements (Net groups, power broker, etc.)
Syslog configuration
Python scripting experience
Ansible automation platform experience
DNS monitoring experience (leveraging BIND stats info)
Company
Calance
A CMMI Level 5 certified company offering IT services and solutions such as cloud, IT staffing, web & mobile development, and more.
Founded in 2004
501-1000 employees
H1B Sponsorship
Calance has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
2023 (1)
2020 (2)
Funding
Current Stage
Late StageLeadership Team
Bill Darden
Chief Financial Officer
A
Amit Govil
Chairman
Recent News
2025-04-16
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