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Senior System Engineer

Harmonia
Washington, United Statesfull_timeVerifiedPosted 3 Jun 2025

About the role

Harmonia Holdings Group, LLC is an award-winning, rapidly growing federal government contractor committed to providing innovative, high-performing solutions to our government clients and focused on fostering a workplace that encourages growth, initiative, creativity, and employee satisfaction.  

Position: Senior System Engineer
Location: Washington, DC – Fully Onsite
Clearance: Top Secret with SCI

Harmonia is currently seeking a Senior System Engineer who understands a wide range of technologies and can provide technology modernization leadership at a major agency. This position offers the opportunity to contribute to the development of cutting-edge technology while partnering closely with the government to create solutions that support critical customer missions. The selected candidate will collaborate with cross-functional teams to deliver comprehensive, end-to-end mission system solutions.

TS/SCI security clearance is required at the time of hire. Applicants selected will be subject to a U.S. Government security investigation and must meet eligibility requirements for access to classified information. Due to the nature of work performed at client facilities, U.S. citizenship is required.

Duties and Responsibilities:

  • Performing systems analysis, evaluation, design, integration, documentation, and implementation of complex applications that require a thorough knowledge of administrative and technical skills.
  • Excellent communicator who can make recommendations on various technology stacks and execute on the recommendations.
  • Lead and participates in all phases of system development with emphasis on planning, analysis, evaluation, integration, testing and acceptance phases.
  • Designs and prepares technical reports and related documentation.
  • Prepares and delivers presentations and briefings as required.
  • Ability to deliver O&M and system enhancement support.
  • Integrate enterprise technologies and applications with other interconnected systems.
  • Provide escalation support to other system support personnel.
  • Develop and implement technology solutions.
  • Monitor system performance and troubleshoot issues.
  • Document configurations and procedures.
  • Stay up to date on the latest technologies.
  • Manage and maintain Microsoft Exchange environments (2016 or 2019), including performance management, regular patching, upgrade planning and execution, and advanced troubleshooting.

Qualifications:

  • Bachelor’s degree in computer science, Information Technology, or a related field.
  • 10 years of experience in Windows system administration.
  • At least four years of experience as a domain administrator.
  • Demonstrated experience with Microsoft Exchange Server 2016 or 2019, including:
    • Performance monitoring and optimization.
    • Applying patches and security updates.
    • Planning and executing Exchange upgrades.
    • Advanced troubleshooting of Exchange-related issues (mail flow, database corruption, client connectivity, etc.).
  • Strong understanding of networking principles and protocols.
  • Excellent problem-solving and analytical skills.
  • Ability to work independently and as part of a team.
  • Excellent communication and interpersonal skills.

Certification:

  • Azure Solutions Architect Expert certification


#LI
#CJ

 

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Here at Harmonia we are pleased to have been repeatedly recognized for our outstanding work culture, the innovative work we do, and the employees on our team who make a difference each day.  Some of these recognitions include:  

  • Recognized as a Top 20 "Best Place to Work in Virginia"
  • Recipient of Department of Labor's HireVets Gold Medallion
  • Great Place to Work Certification for five years running
  • A Virginia Chamber of Commerce Fantastic 50 company
  • A Northern Virginia Technology Council Tech 100 company 
  • Inc. 5000 list of fastest growing companies for eleven years
  • Two-time SBA SBIR Tibbett's Award winner
  • Virginia Values Veterans (V3) Certification

We recognize that every bit of our success is the result of our teams of hard-working, motivated, and innovative professionals who are proud to call themselves part of the Harmonia family!   In addition to competitive compensation, a family-focused culture, and a dynamic, productive work environment, we offer all full-time employees a variety of benefits including, but not limited to

  • Traditional and HSA- eligible medical insurance plans w/ Wellness Incentives for employees and family
  • 10

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