Senior Full Stack Developer

Job Locations US
Job ID 2023-2991
# of Openings


REI Systems provides reliable, effective, and innovative technology solutions that advance federal, state, local, and nonprofit missions. Our technologists and consultants are passionate about solving complex challenges that impact millions of lives. We take a Mindful Modernization approach in delivering our application modernization, grants management systems, government data analytics, and advisory services. Mindful Modernization is the REI Way of delivering mission impact by aligning our government customers’ strategic objectives to measurable outcomes through people, processes, and technology. Learn more at


Employees voted REI Systems a Washington Post Top Workplace in 2015, 2016, 2018, 2020, and 2021!


We are seeking Full- Stack Angular/Java Software Engineer to join our team. In this role, you will have the opportunity to work on modernization and technology transformation projects that have a direct impact on our defense programs. You will be part of an empowered agile team with the opportunity to innovate and learn continuously, working with best architects and technical leads.



  • Be an integral part of a scrum team participating in the full software development lifecycle including requirements, solution design, development, QA, and implementation.
  • Develop, modernize, and make enhancements to an existing application or new enterprise microservice application.
  • Must have strong knowledge on Spring, Spring Boot and Angular.
  • Must have good understanding on Hibernate ORM tool and PostgreSQL.
  • Be able to develop applications with Docker container and Kubernetes.
  • Strong understanding on database design, development, tune-up, and optimization.
  • Have a strong expertise and understanding of AWS Cloud Services.
  • Write automated unit test cases to support test driven development (TDD).
  • Support verification and validation of software by supporting Quality Assurance team.
  • Perform application and security code scans and support the remediation of scan findings.
  • Create new or maintain existing CI/CD pipelines.
  • Contribute to daily stand-up meetings and sprint retrospectives.
  • Other similar professional duties maybe assigned as needed.




  • Managing the complete software development process from conception to deployment
  • Excellent knowledge of back-end programming language such as Javax
  • Excellent knowledge on developing the applications with AngularJS
  • Excellent knowledge on front-end web programming languages such as HTML, CSS, JavaScript, with ability to render server-side and client-side content
  • Excellent knowledge required on MVC frameworks including Spring and Spring Boot 
  • Excellent knowledge on using ORM tool Hibernate for transaction management
  • Perform analysis, development, building and deployment of software developed
  • A demonstrated understanding of Service Oriented Architectures (SOA) including RESTful Service frameworks (Web API)
  • Familiarity with common programing design patterns and best practices
  • A demonstrated understanding of Service Oriented Architectures (SOA) including RESTful Service frameworks (Web API)
  • Working knowledge of testing frameworks like XUnit, NUnit, Jest, JMeter Selenium or Cypress
  • Experience with common version control tools such as Git
  • Familiarity with working in an Agile Scrum environment
  • Strong analytical skills and ability to learn quickly


Desired Qualifications


  • 6+ years of related experience.
  • Understanding of CI/CD tools like Jenkins, Sonar Qube, TFS etc.
  • Knowledge of section 508 compliance design principles
  • Experience in developing responsive websites and mobile apps
  • Experience using GitHub or other Git-based source control systems
  • Experience in one or more the following frameworks and tools: DI, Dapper, NuGet packages, logging (log4j)
  • Experience with gulp, webpack, or rollup is desirable 

Education: Bachelor's degree in a related field/ other field is a must


Clearance: US Citizen with the ability to obtain and maintain a Secret level clearance.


Location: This position can be done remotely.


Covid Accommodations Language:

The essential functions of this position require that the employee performing this role work on-site at REI’s Sterling location. Considering the ongoing COVID-19 pandemic, and as part of our continued efforts to maintain a safe workplace for employees, visitors, and customers, the individual holding the position must be fully vaccinated, as defined in CDC guidance, as a condition of continued employment. REI will consider requests to be excused from this policy whenever necessary to comply with legal requirements and will consider any requests for reasonable accommodations due to a disability, religion, or other exemptions on an individual basis in accordance with applicable legal requirements. Employees and applicants requesting accommodations should request the accommodation in writing and should explain in detail the reasons why they are seeking an accommodation. REI will request additional information or documentation it deems necessary to inform its decision on an employee’s or applicant’s accommodation request.


EEO Statement: REI Systems is an Equal Opportunity Employer






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