Senior Systems Engineer at Harmonia Holdings Group

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.DescriptionTitle: Senior Systems EngineerLocation: Washington DCTerms: Full-timeClearance: Top Secret with SCI eligibility - RequiredTravel: 10%About the roleWe are seeking a highly experienced and technically proficient Senior Systems Engineer to manage optimize and secure critical enterprise infrastructure at the Dept of State in Washington DC. The ideal candidate will be a hands-on expert in Windows Server Active Directory and virtualization technologies with a strong focus on automation and cloud adoption. This role requires deep technical troubleshooting skills and the ability to work in a secure on-site environment.What youll doOwn Windows Server/Active Directory (AD) Services (GPO DNS/DHCP OU design patching monitoring) across production enclaves ensuring high availability and optimal performance.Design implement and manage enterprise virtualization platforms primarily using VMware ESXi for maximum efficiency and resource utilization.Automate infrastructure deployment configuration and maintenance at scale using PowerShell and other scripting languages (e.g. Python) focusing on IaC (Infrastructure as Code) principles.Architect deploy and manage Public Key Infrastructure (PKI) solutions and oversee certificate/TLS lifecycle management across the enterprise.Perform complex end-to-end troubleshooting of infrastructure issues covering networking (TCP/IP routing load balancing) identity (Kerberos/LDAP) and application integration.Document runbooks standard operating procedures (SOPs) and change procedures; participate in scheduled change windows and on-call rotation.Contribute to cloud strategy and migration efforts by providing technical expertise for AWS and/or Azure platform integration.Ensure systems adhere to stringent security requirements (e.g. STIG/RMF/NIST) especially within federal or classified environments.Required QualificationsActive Top Secret with SCI(active or cross-over-eligible).Bachelors in computer science Information Technology or related field or equivalent practical experience.10 years Server administrationExpert-level proficiency in PowerShell for complex administration reporting and automation.Extensive experience with virtualization platforms (ESXi Hyper-V or KVM) including deployment maintenance and performance tuning.Experience with Active Directory in production environments.Preferred Qualifications (nice-to-have)Deep understanding of networking fundamentals (TCP/IP DNS DHCP routing protocols) and experience with load balancers (e.g. F5/NetScaler).Proven experience in designing and managing PKI and handling the entire certificate lifecycle.Excellent written and verbal communication skills with a proven ability to document complex systems.Background in AWS and/or Azure infrastructure services and best practices.Familiarity with security compliance frameworks and tools for federal/classified environments (STIG RMF NIST).Experience with enterprise monitoring solutions (e.g. SCOM Splunk health sets).Exposure to Microsoft 365 (M365) technologies including Hybrid/M365 touchpoints (e.g. Modern Auth EOP/Defender).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 VirginiaRecipient of Department of Labors HireVets Gold MedallionGreat Place to Work Certification for five years runningA Virginia Chamber of Commerce Fantastic 50 companyA Northern Virginia Technology Council Tech 100 companyInc. 5000 list of fastest growing companies for eleven yearsTwo-time SBA SBIR Tibbetts Award winnerVirginia Values Veterans (V3) CertificationWe 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 toTraditional and HSA- eligible medical insurance plans w/ Wellness Incentives for employees and family100% employer-paid dental and vision insurance options100% employer-sponsored STD LTD and life insuranceVeterans CohortGym membership reimbursement401(k) matchingDollar-for-dollar 501(c)(3) donation matchingFlexible-schedules and teleworking optionsPaid holidays and Flexible Paid Time OffAdoption Expense ReimbursementPaid Parental LeaveProfessional development and career growth opportunities and paid training daysEmployer-sponsored Employee Assistance Program for employee and familyTeam and company-wide events recognition and appreciation-- and so much more!Check out ourLinkedInFacebook andInstagramto find out a little more about who we are and if we are the right next step for your career! Harmonia is an Equal Opportunity Employer providing equal employment opportunity to all employees and applicants for employment without regard to race color religion national origin age gender gender identity sexual orientation disability or genetics.Harmonia does and will take affirmative action to employ and advance in employment individuals with disabilities and protected perform the above job successfully an individual must possess the knowledge skills and abilities listed; meet the education and work experience required; and must be able to perform each essential duty and responsibility satisfactorily. Other duties in addition to those listed may be assigned as necessary to meet business needs. Reasonable accommodation will be made to enable an applicant with a disability to successfully apply for and/or perform the essential duties of the job. If you are in need of an accommodation please contact.Required Experience:Senior IC Key Skills Feed,Apache Commons,Maintenance,Business Support,Clinical Employment Type : Full Time Experience: years Vacancy: 1