Full Stack Software Engineer

Apex Systems; Tucson (AZ); Hybrid; USD 120,000 - 160,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401K with match

ESPP

Job summary

Everforth Apex Systems seeks a Full-Stack Developer with 5–10 years of Java and ReactJS experience to design, develop, and maintain secure, scalable web applications for mission-critical systems.

The role requires DoD Secret security clearance as a condition of employment, with location options in Andover or Tucson (Hybrid – at least one onsite per week). 6‑month contract with potential extension.

Qualifications

• 5–10 years of full‑stack development experience with Java (Spring Boot) and ReactJS.
• Strong OOP, RESTful API design, and secure web app development.
• Proficiency with JavaScript/HTML/CSS and modern frameworks (Redux, Next.js).
• Experience with relational databases (MySQL, PostgreSQL, Oracle).
• Familiarity with Git, CI/CD tools, and Agile practices.
• U.S. Citizenship is required for access to defense systems.

Responsibilities

• Develop, test, and maintain full‑stack apps using Java (Spring Boot) and ReactJS.
• Design RESTful APIs and ensure secure, efficient frontend-backend communication.
• Collaborate with UI/UX designers, systems engineers, and DBAs to implement robust solutions.
• Participate in code reviews, integration testing, and deployment pipelines.
• Write clean, maintainable code adhering to security and coding standards.
• Troubleshoot issues across the stack to ensure reliability and performance.
• Assist in migrating legacy apps to modern architectures when needed.

Skills

Java

ReactJS

Spring Boot

REST APIs

JavaScript

HTML5

CSS3

Git

CI/CD

Agile

Redux

Next.js

Security

Tools

Docker

Kubernetes

CI/CD tooling

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.

Benefits

• Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection.
• We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure.
• Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.
• In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA.
• Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach.
• You can access a full list of our benefits, programs, support teams and resources within our 'Welcome Packet' as well, which an Everforth Apex team member can provide.

Equal Opportunity & Diversity Statement

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.

Accommodation for Disability

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.

Transparency

UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.