Senior Java Software Engineer

Greenzone Solutions, Inc. Washington , DC 20001

Posted 4 days ago

GreenZone Solutions, Inc. is a fast-growing small business dedicated service provider to the Federal government. We work hard to promote the best interest of our clients, team, and community while delivering excellence through Data Management, Data Analytics , Agile Software Development, Cyber Security, and Management Consulting Services.

We are looking for a Senior Java Software Engineer. You will be responsible for the operational support, development, and implementation of applications using existing and emerging technology platforms. You will play a key role on collaborative project teams, be responsible for the design and development of mission critical, enterprise-scale business systems. This persons main responsibility is operational support.


  • Collaborates with the Production Support team to assist with ticket investigation and resolution
  • Identify/develop potential solutions and perform impact analysis to confirm priority and technical feasibility of solutions
  • Independently prepares level of effort estimates to develop and execute approved application changes in primary applications, prioritizes work assignments, and facilitates peer review of work products
  • Designs, codes, and tests software modifications to address changes or fixes for problem resolution as necessary
  • Coordinates and participates in system, integration, performance and acceptance testing
  • Maintains shared responsibility for updating configuration documentation and the related configuration management tool to track application changes
  • Interacts with clients and users as required during daily activities
  • Work as part of a team throughout the software development life-cycle
  • Collaborate with designers and analysts to implement enhancements or new applications
  • Develop code to meet user story acceptance criteria
  • Creates test transactions and runs unit tests
  • Debug, test, and fix errors
  • Conduct design and code review to ensure compliance with standards
  • Maintain records to document program development and revisions
  • Provide evening and weekend support for outages and deployments


  • Must be a U.S. Citizen with the ability to obtain and maintain a government clearance
  • Bachelors Degree in related field
  • 8+ years experience in application development using Java/JEE and related technologies (JBoss, Spring Framework, Weblogic)
  • Ability to independently investigate, troubleshoot, design, and develop solutions
  • Solid written and oral communication skills to interact with the business and technology teams
  • Experience in HTML, CSS, and JavaScript
  • Experience developing REST, SOAP, and JSON/XML
  • Experience with JUnit
  • Experience with build tools (Ant andor Maven)
  • Experience with code repositories (Subversion and/or Git)

Desired Skills:

  • 4+ years of experience in HTML, CSS, and JavaScript
  • 4+ years of experience developing REST, SOAP, and JSON/XML
  • 3+ years of experience with JUnit, Ant and/or Maven, Subversion and/or Git
  • Working knowledge of Agile/Scrum development

Location: Washington, DC (Due to COVID-19, on-site client work has been suspended until further notice)


At GreenZone, we are dedicated to obtaining and maintaining the highest level of employee satisfaction by offering a competitive benefits package that includes medical, dental and vision, short and long term disability, retirement plan and company match, a generous annual leave plan, and a commitment to providing a work/life balance for all employees.

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Senior Java Software Engineer

Greenzone Solutions, Inc.