Senior Linux and Windows Engineer

Posted Date 4 months ago(1/26/2024 10:59 AM)
Job ID
System Engineering

About DMI

DMI is a leading global provider of digital services working at the intersection of public and private sectors. With broad capabilities across IT managed services, cybersecurity, cloud migration and application development, DMI provides on-site and remote support to clients within governments, healthcare, financial services, transportation, manufacturing, and other critical infrastructure sectors. DMI has grown to over 2,100+ employees globally and has been continually recognized as a Top Workplace in both regional and national categories.

About the Opportunity

DMI, LLC is seeking a Senior Linux and Windows Engineer.  As a Senior Linux Engineer at DMI, your role is to provide and manage a wide range of activities, including the architecture, planning, implementation, design, capacity management, and operational support for the Linux Virtual and Physical infrastructure for an on-premises application support contract for a government customer.


Duties and Responsibilities:

  • Primary responsibilities will include overseeing and executing system-based projects, writing scripts to automate manual processes, creating system documentation & diagrams. Provide system administration and configuration of specialized mission applications and software
  • Daily tasks: Monitor, Maintain and troubleshoot issues with Linux and Windows based Operating System
  • At least 50% advanced experience in Linux and 50% experience in Windows
  • Experience in troubleshooting Apache, IIS, IP Tables, Linux and Windows Firewalls, 
  • Experience in troubleshooting Network related issues such as service reachability or connectivity
  • Experience in certificates and GPO
  • Participates in Change Board, and Technical Review meetings 
  • Implements Change Requests based off customer request 
  • Manage a clustered environment of an on-premise system
  • Collaborate with Operations Systems Support, Network Infrastructure, Security Infrastructure, Project teams, IT, Operations, and Product teams. Activities include but are not limited to Change, Incident, Problem, and Risk Management.
  • Own and drive the resolution of highly complex issues during regular business hours and off-hour escalations or maintenance activities
  • Proactively monitoring system performance and capacity planning
  • Managing, coordinating, and implementing software upgrades, patches, hotfixes on servers, workstations, and network hardware
  • Creating and modifying scripts or applications to perform tasks





  • BS degree or equivalent experience.
  • 5+ yrs. of advanced experience as a Linux and Windows Engineer
  • Strong Windows Servers, SSL, GPO, scripting experience required.
  • Demonstrable expert level of Linux administration. 
  • In-depth knowledge of RedHat Linux.
  • In-depth knowledge and expertise in Linux systems preferably Centos / Redhat
  • Demonstrable experience deploying custom and COTS solutions in an enterprise environment. 
  • Hands-on experience with MySQL and/or MariaDB
  • Strong communication and collaboration skills
  • Ability to work independently and as part of a team
  • Willingness to learn and adapt to new technologies and processes. 
  • Good oral and written communication skills
  • Role requires proficiency in:
    • Windows Server based OS troubleshooting, configuration, maintenance, and vulnerability remediation techniques
    • Apache/NodeJS/Nginx/IIS
    • Salt
    • Ordering, replacing, expiring, and troubleshooting of SSL certifications
    • Ansible/Jenkins
    • Understanding of DNS, TCP/IP, load balancing, and network concepts
    • Scripting in PowerShell, Bash, or compatible languages
  • Role requires familiarity with:
    • NSX
    • Load Balancing Technologies
    • This position provides 24x7 coverage with weekly on call rotation.
    • Must have the ability to obtain and maintain a Public Trust Clearance.


    • Min Citizenship Status Required: U.S. Citizenship


    • Physical Requirements: No Physical requirement needed for this position.

    • Location: Remote (prefer ET/CT zones) 

Working at DMI

DMI is a diverse, prosperous, and rewarding place to work. Being part of the DMI family means we care about your wellbeing. We offer a variety of perks and benefits that help meet various interests and needs, while still having the opportunity to work directly with several of our award-winning, Fortune 1000 clients. The following categories make up your DMI wellbeing:

  • Convenience/Concierge - Virtual visits through health insurance, pet insurance, commuter benefits, discount tickets for movies, travel, and many other items to provide convenience.
  • Development – Annual performance management, continuing education, and tuition assistance, internal job opportunities along with career enrichment and advancement to help each employee with their professional and personal development.
  • Financial – Generous 401k matches both pre-tax and post-tax (ROTH) contributions along with financial wellness education, EAP, Life Insurance and Disability help provide financial stability for each DMI employee.
  • Recognition – Great achievements do not go unnoticed by DMI through Annual Awards ceremony, service anniversaries, peer-to-peer acknowledgment, employee referral bonuses.
  • Wellness – Healthcare benefits, Wellness programs, Flu Shots, Biometric screenings, and several other wellness options.

Employees are valued for their talents and contributions. We all take pride in helping our customers achieve their goals, which in turn contributes to the overall success of the company. The company does and will take affirmative action to employ and advance in employment individuals with disabilities and protected veterans, and to treat qualified individuals without discrimination based on their physical or mental disability or veteran status. DMI is an Equal Opportunity Employer Minority/Female/Veterans/Disability. DMI maintains a drug-free workplace.




***************** No Agencies Please *****************


Applicants selected may be subject to a government security investigation and must meet eligibility requirements for access to classified information. US citizenship may be required for some positions.



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