Role Overview
System One is hiring a mid-level Java React Developer. This is a contract hybrid role, based in Arlington. Part of System One's Frontend hiring. Full responsibilities, required qualifications, and the apply link are listed in the description below.
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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, ReactJS, 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, ReactJS, 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 DevOps principles, Continuous Delivery pipelines, MS Azure DevOps 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 DevOps, 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 DevOps, 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 employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.
Company DescriptionSystem One is a leading provider of specialized, highly technical services and solutions to critical infrastructure, technology, life sciences, and government sectors. We partner with large private and public organizations who trust us to execute their complex, mission-critical initiatives through our outsourced services and workforce solutions.
Frequently Asked Questions
How do I apply for the Java React Developer position at System One?
Use the Apply button above to submit your application directly to System One. Most applications take less than 5 minutes if your resume and contact details are ready, and you'll be routed to the employer's official application system to finish.
Is the Java React Developer role at System One remote or in-office?
This is a hybrid role based in Arlington. Expect a mix of in-office and remote days, with the specific cadence set by the hiring manager.
What does a Java React Developer at System One earn?
System One has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.
When was the Java React Developer role at System One posted?
This role was posted on April 14, 2026 (54 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.
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