Job#: 3029075 Job Description: We are hiring Developer-Java/J2EE Specialist!Role: Developer-Java/J2EE Specialist
Supporting: Large Financial Services Client
Location: McLean, VA (Onsite)
Assignment Type: Contract Only
Duration: 6 MonthsRole Overview:Are you a seasoned Java developer who thrives in backend architecture, enjoys tackling complex data challenges, and is excited by the practical use of AI in modern software development? This is an opportunity to step into a senior-level role where your technical depth, judgment, and adaptability will truly matter.
You'll work across multiple initiatives, contributing to the design, development, and evolution of high-performance applications while helping modernize and future-proof systems.
Key Responsibilities:- Design, build, and maintain robust backend services using Java (8+) and modern frameworks.
- Develop and consume RESTful APIs, ensuring scalability, security, and performance.
- Apply deep expertise in multithreading, concurrency, collections, generics, lambdas, and I/O to solve real-world challenges.
- Work closely with relational databases to design schemas, model data, and write advanced SQL for analysis and troubleshooting.
- Participate in R&D efforts involving AI, including rapid prototyping, prompt engineering, tool/model evaluation, and integrating AI-assisted capabilities into applications or workflows.
- Contribute across the full software development lifecycle, from design and development through testing, deployment, and support.
- Collaborate with cross-functional teams and clearly communicate technical concepts to both technical and non-technical audiences.
- Adapt quickly to new projects, tools, and environments as priorities evolve.
Qualifications: - 7-10 years of professional software development experience; Bachelor's degree in Computer Science or related field (or equivalent experience)
- Strong backend development experience using Java (8+), with deep expertise in multithreading, concurrency, collections, generics, lambdas, and I/O
- Proven experience building and consuming RESTful APIs using Spring / Spring Boot and related frameworks
- Strong understanding of Spring Framework, Dependency Injection, and enterprise application design
- Proficiency with Maven or Gradle, and testing frameworks such as JUnit, Mockito, and FitNesse
- Advanced skills working with relational databases (e.g., MS SQL), including data modeling and complex SQL querying
- Experience handling XML and JSON data formats
- Hands-on knowledge of Docker, CI/CD pipelines, and DevOps tools such as Jenkins, JIRA, and Git
- Experience across the full software development lifecycle
- Demonstrated ability to perform AI-driven R&D, including prompt engineering, rapid prototyping, tool/model evaluation, and integrating AI capabilities into applications or workflows
- Experience upgrading or migrating applications to Java 21 or other recent LTS versions (preferred)
- Python proficiency, particularly for AI/ML development or automation (preferred)
- Strong problem-solving, analytical, and communication skills; adaptable and able to work effectively across multiple projects
Compensation and Benefits: The pay rate for this position is between $65.00 and $89.00 per hour. Please note that the final rate may be contingent on experience and other factors.
This employer is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.
Apex uses a virtual recruiter as part of the application process. Click for more details.
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Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join 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 ClearlyRated's Best of Staffing in Talent Satisfaction in the United States and Great Place to Work in the United Kingdom and Mexico. Apex uses a virtual recruiter as part of the application process. Click for more details.
Apex Benefits Overview: 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. 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, 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. 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 Apex team member can provide.
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