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Java Developer​/React

System One
Full TimemidHybrid
Arlington, Virginia, USPosted April 17, 2026

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JavaScriptJavaSQLHTMLCSSReactAngularAzureGitAgileScrumAPI

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Job Description

Job Title:

Full-Stack JAVA/REACT JS Developer

Contract to Hire

Minimum Clearance Required to Start:

Secret

Hybrid Work Model: 4 days a week on-site - 1 day remote - Arlington, VA

Compensation: $60/hr. to $80/hr. range commensurate with experience.

System One IT has a contract to hire opening for a JAVA/REACT JS Developer with Agile methodology experience to support a respected systems integrator at a federal end customer in Arlington, VA (Hybrid, 4 days a week on-site, 1 day remote).

You will serve as an Agile Scrum team member providing software development and maintenance for the delivery of releasable software in a continuous integration/continuous delivery environment. In addition, you will be responsible for activities associated with the delivery of software solutions associated with customer-defined systems and software projects by working in close collaboration with software developers/engineers and stakeholders within Agile processes.

+ Front-end:

JavaScript, Ajax, React

JS, or Angular; HTML, CSS

+ Back-end:

Java 2 Enterprise Environment (J2EE) with Servlet and JSP

+ Databases: MS SQL, Oracle

Responsibilities

+ Write code that is robust, secure, readable, tested, follows conventions, and is no more complex than necessary.

+ Stay up to date on recommended best practices in relevant frameworks and languages

+ Reason objectively with other engineers about the technical merit of individual solutions and prepare detailed specifications for programs

+ Responsible for program design, coding, testing, debugging, and documentation.

+ Formulate and develop detailed specifications, code, documentation, and related customer information required to complete program development and maintenance activities

+ Create and/or modify complex programs to meet user requirements. This includes testing programs and system changes, ensuring product quality and timeliness.

+ Confer with project manager and representatives of departments affected by the program to resolve questions of program intent, output requirements, input data acquisition, extent of automatic programming and coding use and modification, and inclusion of internal checks and controls

+ Design and develop client applications; meet with clients/functional SMEs to determine program requirements. Test and correct program errors by altering program steps and sequence

+ Analyze, review, and rewrite programs to increase operating efficiency or adapt to new requirements

+ Actively participate in sprint planning activities, artifact creation, development, testing, and demonstrations

+ Analyze project-related problems and create innovative solutions involving technology, methodology, tools, and solution components

+ Develop application change management tickets and develop deployment instructions

+ Assist with other program efforts (such as test automation, configuration management, etc.)

+ Exhibit strong debugging skillset utilizing all tools at the team's disposal

Qualifications

Required:

+ Current Active Secret Clearance

+ ?

Bachelor of Science degree in Engineering, Physics, Network Security, Information Systems, or Computer Science

+ 5 or more years' experience as a software developer

+ Proven experience as a Developer, with strong knowledge of a combination of the following technologies:

+ Front-end:

JavaScript, Ajax, React

JS, or Angular; HTML, CSS

+ Back-end:

Java 2 Enterprise Environment (J2EE) with Servlet and JSP

+ Databases: MS SQL, Oracle

+ Understanding of RESTful API design and development

+ Proficiency in version control systems (e.g., Git)

+ Strong problem-solving and debugging skills/ debug / trace code and resolve issues quickly (Debugging tools in Java IDEs and Browser developer tools)

+ Ability to follow established development processes and procedures, including sprint planning and code reviews

+

Experience with Dev Ops principles, Continuous Delivery pipelines, MS Azure Dev Ops pipelines, source control - ADO Git

+ Strong verbal/written communication skills and ability to work in a team environment and interface with customers

+

Experience with Microsoft Azure Dev Ops, Fortify scanner tool.

Desired:

+ Strong verbal/written communication skills and ability to work in a team environment and interface with customers

+

Experience with Microsoft Azure Dev Ops, Fortify scanner tool

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for…

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