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Senior Infrastructure Operations Engineer

Company Overview

Cloudmark is a trusted leader in intelligent threat protection against known and future attacks, safeguarding 12 percent of the world’s inboxes from wide-scale and targeted email threats. With more than a decade of experience protecting the world’s largest messaging environments, only Cloudmark combines global threat intelligence from a billion subscribers with local behavioral context tracking to deliver instant and predictive defense against data theft and security breaches that result in financial loss and damage to brand and reputation. Cloudmark protects more than 120 tier-one service providers and tens of thousands of enterprises, including, Verizon, Swisscom, Comcast, Cox and NTT.


The Senior Infrastructure Operations Engineer will be responsible for senior-level management and maintenance of the company's network and systems operations infrastructure. This position will be responsible for design, planning, implementation, automation and maintenance components as well as participating in the oversight and daily upkeep of the systems, networks, processes, security and documentation of its operations with an emphasis on Infrastructure as Code.


  • Provide leadership-level role in designing, deploying, and maintaining Cloudmark network and systems infrastructure
  • Interface with network service and colocation providers on deployment, maintenance and incident management
  • Contribute to the development of operational tools, procedures and documentation.
  • Provide on-call and scheduled after-hours support for production operations (once every few weeks, on rotation)


  • Expertise in configuring, deploying, and diagnosing an array of critical systems and network services (primarily Linux and Cisco)
  • Expertise in end-to-end systems availability (including network, OS and application layers)
  • Solid understanding of TCP/IP protocols and daemons (dns, http, pop/smtp, rsync, ssh)
  • Critical thinking and troubleshooting skills regardless of network/system/service issue, especially when participating in general on-call rotation
  • 5+ years in an ISP, SaaS or web service operations/engineering environment, contributing directly to production operations configuration and support
  • Keen awareness of criticality of production service administration
  • Experience working with ISP and Telecom carriers and an understanding of their typical SLA requirements, urgency
  • Experience working with remote colocation facilities as well as Cloud Infrastructure providers (AWS, Azure, Google Cloud, etc.)
  • Visio, LucidChart, OmniGraffle or similar procedural documentation production
  • Enthusiasm for creating and maintaining hybrid cloud environments

Education and Experience Required

  • 4-year college degree
  • Bash, perl and/or python scripting
  • Linux / Unix command line competence (grep, sed, etc.)
  • Strong grasp of infrastructure resources (CPU, RAM, storage, network, power, etc.)
  • Version control systems (Git, SVN, etc.)
  • Configuration management experience (Puppet, Chef, Ansible, etc.)
  • Cisco IOS (Switching, routing)

Desired Education and Experience

  • RHEL/CentOS Linux (5-7)
  • VMware stack (including vCenter, ESXi, networking, etc.)
  • Experience in security / regulatory compliance audits (SOX, PCI, SSAE / ISAE SOC, ISO, etc.)
  • Cisco ASA (Firewall, VPN, OSPF)
  • Brocade Vyatta (Point-to-point OpenVPN L3 and GRE L2 tunneling)
  • Brocade VDX (L2 and L3 switching plus fibre channel storage)
  • Load Balancing (A10, F5, etc.)
  • FortiGate (Firewall)

Cloudmark Privacy Policy – Human Resources Data

Cloudmark is an equal opportunity employer and considers qualified applicants for employment without regard to race, color, creed, religion, national origin, sex, sexual orientation, gender identity and expression, age, disability, or Vietnam era, or other eligible veteran status, or any other protected factor.

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