Full-Time

Lead Exchange Engineer

Enterprise Messaging

Posted on 6/3/2025

Harmonia

Harmonia

201-500 employees

Federal IT services and cybersecurity solutions

No salary listed

No H1B Sponsorship

Washington, DC, USA

In Person

US Citizenship, US Top Secret Clearance Required

Category
IT & Security (1)
Required Skills
TCP/IP
PowerShell
Requirements
  • Bachelor’s in Computer Science, Information Technology, or related field — or equivalent practical experience.
  • 10+ years of Windows Server administration and 4+ years of administering Active Directory in production.
  • Strong grasp of networking fundamentals (TCP/IP, DNS, DHCP, routing) and certificate/TLS management.
  • Proven PowerShell for administration/automation
  • Excellent written and verbal communication.
  • Ability to work 100% onsite in Washington, DC; U.S. citizen.
Responsibilities
  • Own Windows Server/AD services (GPO, DNS/DHCP, OU design, patching, monitoring) across production enclaves.
  • Automate at scale with PowerShell; document runbooks and change procedures; participate in change windows/on-call.
  • Troubleshoot complex infrastructure issues end-to-end (networking/TLS/certs/identity).
  • Contribute to Exchange 2016/2019 operations (DAG health checks, CU planning, hybrid touchpoints) in partnership with a messaging SME.
Desired Qualifications
  • Top Secret with SCI (active or crossover-eligible).
  • Microsoft Exchange 2016/2019 exposure: performance monitoring, CU/patch participation, upgrade planning, and advanced troubleshooting (mail flow, client connectivity, database/index health).
  • Hybrid/M365 touchpoints: HCW, OAuth/Modern Auth, MRS/MRSProxy, and EOP/Defender hygiene.
  • Experience with load balancers (F5/NetScaler), PKI/certificate lifecycle, and enterprise monitoring (SCOM/M365 health sets).
  • Azure background; Microsoft Azure certifications (e.g., AZ-104/AZ-305) preferred.
  • Prior work in federal or classified environments (STIG/RMF/NIST).

Harmonia Holdings Group provides IT solutions for U.S. government agencies. They tailor services such as software development, data analytics, and cybersecurity to help federal operations run more efficiently within tighter budgets. Their offerings combine software and services delivered under government contracts, using emerging technologies to meet agencies’ needs. Harmonia differentiates itself by focusing specifically on the federal market, building customized solutions through close agency collaboration, and by its commitment to social impact, including donating millions and supporting veteran employment initiatives. The company’s goal is to improve the efficiency and effectiveness of federal operations while contributing to communities and helping veterans transition into civilian life.

Company Size

201-500

Company Stage

Growth Equity (Venture Capital)

Total Funding

N/A

Headquarters

Blacksburg, Virginia

Founded

2006

Simplify Jobs

Simplify's Take

What believers are saying

  • Madison Dearborn investment accelerates growth with Damon Griggs as CEO.
  • Active USAspending.gov contracts ensure steady federal revenue streams.
  • New executives like Rod Fontecilla boost AI innovation capabilities.

What critics are saying

  • Damon Griggs' team causes talent attrition in 3-6 months.
  • Booz Allen Hamilton erodes AI/ML contracts in 12-24 months.
  • FY2027 budget cuts slash DevSecOps revenue by 20-30%.

What makes Harmonia unique

  • Harmonia deploys Agile and DevSecOps for federal AI/ML and cybersecurity modernization.
  • 94% employee approval exceeds U.S. average, aiding veteran talent attraction.
  • R3 Corda partnership enhances secure hybrid blockchain for federal banking.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

401(k) Company Match

Flexible Work Hours

Paid Holidays

Unlimited Paid Time Off

Paid Parental Leave

Gym Membership

Professional Development Budget

Company News

Harmonia Holdings Group, LLC
Aug 20th, 2025
Kirstin Shelton Joins Harmonia as Chief Human Resources Officer

McLean, VA, August 20, 2025 - Harmonia Holdings Group, LLC (Harmonia), a provider of innovative technology solutions to the U.S. Federal Government, today announced that Kirstin Shelton has joined the company as Chief Human Resources Officer (CHRO).

Harmonia Holdings Group, LLC
Feb 26th, 2025
Dawn Halfaker and Sudhakar Kesavan Join Harmonia Board of Directors

Harmonia Holdings Group, LLC (Harmonia), a provider of innovative technology solutions to the U.S. Federal Government, today announced the addition of Dawn Halfaker and Sudhakar Kesavan to their Board of Directors.

Homeland Security Today
Oct 9th, 2024
Rod Fontecilla Joins Harmonia Holdings Group as Chief Innovation and AI Officer

Rod Fontecilla joins Harmonia Holdings Group as Chief Innovation and AI Officer.

Business Wire
Sep 11th, 2024
Madison Dearborn Partners Completes Strategic Investment in Harmonia Holdings Group; Industry Veteran Damon Griggs joins Harmonia as CEO and Chairman

Harmonia Holdings Group, LLC (“Harmonia” or the “Company”), a provider of innovative technology solutions to the U.S. Federal Government, today announ

ExecutiveBiz
Sep 10th, 2024
Madison Dearborn Partners Announces Strategic Growth Investment in Harmonia

Madison Dearborn Partners has completed a strategic investment in Harmonia Holdings, a technology solutions provider to federal agencies and commercial clients.

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