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Subject Matter Expert

Job in Washington, District of Columbia, 20022, USA
Listing for: 6AM City, LLC
Full Time position
Listed on 2026-06-22
Job specializations:
  • Software Development
    Software Engineer, Full Stack Developer, Java Developer, Backend Developer
Salary/Wage Range or Industry Benchmark: 125000 - 150000 USD Yearly USD 125000.00 150000.00 YEAR
Job Description & How to Apply Below

Job Description

Harmonia Holdings Group, LLC is an award-winning minority and female owned 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.

We have an exciting opportunity for a Subject Matter Expert with the following skills and abilities to join our team:

  • Deep knowledge of the full life cycle Software development involving analysis, design (System/OO), modeling, development, deployment, testing, documentation, implementation & maintenance of application software in Micro Services-based & Web-based Distributed n-tier architectures.
  • Coding of business components, with cutting edge technologies like Java, NodeJS, Bootstrap, Vue, Spring Data and Hibernate.
  • Working knowledge of Web Services and its components such as WSDL, SOAP and REST.
  • Develop and design Microservices in Java using Spring Boot and Agile methodology.
  • Extensively worked with Rest Web Services using Spring Boot along with Postman, Insomnia, Open API, and Swagger for creating API documentation.
  • Experience in using Object Relational Mapping tools such as Hibernate.
  • Experience in RDBMS Design, Oracle, SQL, PostgreSQL commands.
  • Motivated and focused team player with strong problem solving and analytical skills. Generate new ideas and quickly learn new technologies to get the job done.
  • Configure Jenkins Pipelines via Docker and helm charts for Kubernetes management.
  • Rich knowledge of Web and client server technologies including Java, J2EE, Struts, Hibernate, Spring, JSP, XML, Design Patterns, Angular, Junit, Spring Boot, Rest, Microservices, AWS, GCP.
  • Produce studies, analysis, and white papers, as directed by Leadership, which are typically assigned to identify potential improvements and problem or issue resolution. The output of this activity shall be a written deliverable that addresses the problem area and recommends solutions and estimates for the LOE needed for execution.
  • Participate in tiger teams as needed to address critical and/or complex problems.
  • Use Agile Development Methods involving multiple scrum teams and with constant collaboration with stakeholders for continuous improvement at every stage utilizing continuous integration and continuous delivery approaches utilizing Dev Sec Ops  methodology.
  • Work with company leadership to define project objectives, processes, policies, procedures, and rules.
  • Informing stakeholders regarding project goals and expected deliverables.
  • Fact‑checking professionals on the project to ensure data and information accuracy.

Minimum Requirements:

  • Must be U.S. Citizen
  • Must be able to obtain public trust clearance
  • Must have a BA/BS at minimum
  • 15+ years of experience

Benefits include:

  • Traditional and HSA-eligible medical insurance plans with wellness incentives for employees and family
  • 100% employer-paid dental and vision insurance options
  • 100% employer-sponsored STD, LTD, and life insurance
  • Veterans Cohort
  • Gym membership reimbursement
  • 401(k) matching
  • Dollar-for-dollar 501(c)(3) donation matching
  • Flexible schedules and teleworking options
  • Paid holidays and flexible paid time off
  • Adoption expense reimbursement
  • Paid parental leave
  • Professional development and career growth opportunities and paid training days
  • Employer-sponsored Employee Assistance Program for employee and family
  • Team and company-wide events, recognition, and appreciation— and so much more!

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 veterans. To 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

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