Java Developer

Apex Systems; Manassas (VA); On-site; USD 110,000 - 150,000; Full time

Benefits offered by this job

ESPP (Employee Stock Purchase Program)

401K with company match

HSA (Health Savings Account)

EAP with counseling sessions

Certification discounts

Job summary

Everforth Apex Systems is seeking a Java Developer with a mid-to-front-end stack to join our team in Manassas, VA. Candidates must be able to obtain and maintain a DoD Secret clearance as a condition of employment.

The role requires strong Java development, Linux/Unix experience, and ability to integrate, test, troubleshoot, and refactor complex systems. Desired skills include advanced Java threading, databases, middleware, UI frameworks, reactive programming, containers, and CI/CD

Qualifications

• Bachelor’s degree in CS or related STEM field
• ≥ 2 years of relevant experience
• Strong Linux/Unix development background
• Proven Java development experience with multithreading
• Ability to integrate, test, troubleshoot, and refactor software systems

Skills

Java development

Linux/Unix development

Multithreading

Software integration & testing

Refactoring

DoD clearance eligibility

Team collaboration

Education

B.S. in Computer Science or related STEM

Tools

MongoDB

PostgreSQL

gRPC

Artemis

JavaFX

Swing

RxJava

Kotlin Coroutines

Flow

JVisualVM

JConsole

JProfiler

Docker

Kubernetes

Bash scripting

Job description

Job#: 3051155

Job Description:

Java Developer(mid‑to‑front‑end stack)

Candidates must be able to obtain and/or maintain a Department of Defense Secret clearance as a condition and continuation of employment.

Basic qualifications

• B.S. in Computer Science, Software/Computer/Electrical Engineering, or a related STEM discipline
• ≥ 2 years of relevant experience
• Strong Linux/Unix development, integration, and troubleshooting background
• Proven Java development experience, including multithreading
• Ability to integrate, test, troubleshoot, and refactor software systems

Desired skills

• Advanced Java multithreading
• Database experience (MongoDB, PostgreSQL, or comparable)
• Inter‑process messaging middleware (gRPC, Artemis)
• UI frameworks: JavaFX / Swing
• Reactive programming (RxJava, Kotlin Coroutines, Flow)
• Performance‑tuning tools (JVisualVM, JConsole, JProfiler)
• Containerization/orchestration (Docker, Kubernetes, etc.)
• Agile full‑lifecycle development familiarity
• Bash scripting proficiency
• 3+ years combined experience in Linux, scripting/software development, and configuration management

• Everforth Apex Benefits Overview: 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.

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 [e-mail] 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.

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