JAVA/REACT Developer

Apex Systems; Andover (MA); Hybrid; USD 110,000 - 150,000; Full time

Benefits offered by this job

Medical Insurance

401K with company match

ESPP

HSA

EAP

Employee discounts

Career coach

Job summary

Everforth Apex is seeking a seasoned Full-Stack Developer (5–10 years) to design, build, and maintain secure web applications using Java (Spring Boot) and ReactJS. You will develop RESTful APIs, collaborate with cross-functional teams, and uphold stringent security standards in a DoD-related environment.

Hybrid work arrangement with occasional travel may be required. U.S. Citizenship is mandatory for access to defense-related systems. Experience with CI/CD and container tech is a plus.

Qualifications

• 5–10 years of experience in full-stack development using Java (Spring Boot) and ReactJS.
• Strong understanding of object-oriented programming, RESTful API design, and secure web application development.
• Proficiency with JavaScript, HTML5, CSS3, and modern frameworks such as Redux or Next.js.
• Experience with relational databases (MySQL, PostgreSQL, or Oracle).
• Familiarity with Git, CI/CD tools, and Agile development practices.
• U.S. Citizenship (mandatory for access to defense-related systems).

Responsibilities

• Develop, test, and maintain full-stack applications using Java (Spring Boot) and ReactJS.
• Design RESTful APIs and ensure secure, efficient communication between front-end and back-end components.
• Collaborate with UI/UX designers, systems engineers, and database administrators to implement robust software solutions.
• Participate in code reviews, integration testing, and deployment pipelines.
• Write clean, maintainable code adhering to project-specific security and coding standards.
• Troubleshoot and resolve issues across the stack to ensure application reliability and performance.
• Support migration of legacy applications to modern web architectures where required.

Skills

Full-stack development

Java

ReactJS

REST API design

Secure web development

JavaScript

HTML5

CSS3

Git

CI/CD

Agile

Tools

Docker

Kubernetes

OAuth2

SAML

DevSecOps

Job description

Job#: 3047887

Job Description

• Candidates must be able to obtain and/or maintain a Department of Defense Secret Security Clearance as a condition and continuation of employment**

Location: Andover or Tucson (Hybrid — once a week onsite minimum)

Job Type: 6 month contract with potential to extend

Experience Level: 5–10 years

Position Summary

We are seeking a Full-Stack Developer with 5–10 years of professional experience in Java and ReactJS to support mission-critical software systems. The ideal candidate will design, develop, and maintain scalable web applications that integrate secure backend services with dynamic, responsive front-end interfaces. The role requires strong problem-solving skills, attention to detail, and the ability to collaborate effectively in a structured, security-conscious environment.

Key Responsibilities

• Develop, test, and maintain full-stack applications using Java (Spring Boot) and ReactJS.
• Design RESTful APIs and ensure secure, efficient communication between front-end and back-end components.
• Collaborate with UI/UX designers, systems engineers, and database administrators to implement robust software solutions.
• Participate in code reviews, integration testing, and deployment pipelines.
• Write clean, maintainable code adhering to project-specific security and coding standards.
• Troubleshoot and resolve issues across the stack to ensure application reliability and performance.
• Support migration of legacy applications to modern web architectures where required.

Required Qualifications

• 5–10 years of experience in full-stack development using Java (Spring Boot) and ReactJS.
• Strong understanding of object-oriented programming, RESTful API design, and secure web application development.
• Proficiency with JavaScript, HTML5, CSS3, and modern frameworks such as Redux or Next.js.
• Experience with relational databases (MySQL, PostgreSQL, or Oracle).
• Familiarity with Git, CI/CD tools, and Agile development practices.
• U.S. Citizenship (mandatory for access to defense-related systems).

Preferred Qualifications

• Experience in a DoD or aerospace/defense environment.
• Working knowledge of containerization and orchestration (Docker, Kubernetes).
• Familiarity with DevSecOps pipelines and secure coding practices.
• Experience integrating APIs with identity management systems (OAuth2, SAML, etc.).

Work Environment & Expectations

• May require working in secure facilities or with sensitive defense data systems.
• Flexibility to collaborate across time zones and travel occasionally for project needs.
• Adherence to project-specific documentation, cybersecurity, and compliance standards is mandatory.

About Everforth Apex

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico.

Benefits Overview

• medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection.
• ESPP (employee stock purchase program).
• 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure.
• HSA (Health Savings Account on the HDHP plan).
• SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions.
• corporate discount savings program and other discounts.
• professional development: on-demand training program, certification prep, a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, certification discounts and other perks to associations that include CompTIA and IIBA.
• dedicated customer service team for our Consultants that can address questions around benefits and other resources.
• certified Career Coach.

Equal Opportunity and Diversity

Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.