Core Java Developer

Genesis10 is currently seeking a Senior Java Full Stack Developer for a contract position with a Global Financial Institution located in Pennington, NJ. This is a 12+ month contract opportunity.
This role focuses on designing and implementing scalable, high-performance backend systems within an enterprise environment. The ideal candidate will architect and build event-driven systems using Java, Spring Boot, and Kafka, with a strong focus on microservices architecture, system reliability, and maintainability. The position involves providing technical leadership and mentorship to development teams while collaborating with product managers and architects to deliver robust solutions.
Responsibilities:

• Design and implement scalable, high-performance backend systems using Java and Spring Boot
• Architect and build event-driven systems using Kafka
• Design microservices architecture and ensure system scalability, reliability, and maintainability
• Lead technical solution design and architecture discussions
• Develop robust APIs and backend services for enterprise applications
• Optimize database interactions and schema design using Oracle
• Provide technical leadership and mentorship to development teams
• Ensure coding standards, design patterns, and best practices are followed
• Collaborate with product managers, architects, and stakeholders to translate requirements into technical solutions
• Conduct code reviews, performance tuning, and system optimization
• Troubleshoot complex production issues and implement long-term fixes

Requirements:

• 10 years of experience in backend development with Java
• Strong expertise in Spring Boot and microservices architecture
• Hands-on experience with Apache Kafka for building event-driven systems
• Strong experience with Oracle databases, including performance tuning and query optimization
• Deep understanding of distributed systems and system design
• Experience designing high-availability, scalable enterprise systems
• Strong knowledge of REST APIs, messaging systems, and asynchronous processing
• Experience with system architecture, design patterns, and software engineering best practices
• Excellent problem-solving and debugging skills
• Strong communication and technical leadership skills

Desired skills:

• Experience with cloud platforms (AWS / Azure / Google Cloud Platform)
• Knowledge of Docker and Kubernetes
• Experience with CI/CD pipelines and DevOps practices
• Experience working in large-scale enterprise or fintech systems

Pay range: $55.06 - $63.06 per hour
Only candidates available and ready to work directly as Genesis10 employees will be considered for this position.
If you have the described qualifications and are interested in this exciting opportunity, please apply!
Ranked a Top Staffing Firm in the U.S. by Staffing Industry Analysts for six consecutive years, Genesis10 puts thousands of consultants and employees to work across the United States every year in contract, contract-for-hire, and permanent placement roles. With more than 300 active clients, Genesis10 provides access to many of the Fortune 100 firms and a variety of mid-market organizations across the full spectrum of industry verticals.
For contract roles, Genesis10 offers the benefits listed below. If this is a perm-placement opportunity, our recruiter can talk you through the unique benefits offered for that particular client. Benefits of Working with Genesis10:

• Access to hundreds of clients, most who have been working with Genesis10 for 5-20+ years.
• The opportunity to have a career-home in Genesis10; many of our consultants have been working exclusively with Genesis10 for years.
• Access to an experienced, caring recruiting team (more than 7 years of experience, on average.)
• Behavioral Health Platform
• Medical, Dental, Vision
• Health Savings Account
• Voluntary Hospital Indemnity (Critical Illness & Accident)
• Voluntary Term Life Insurance
• 401K
• Sick Pay (for applicable states/municipalities)
• Commuter Benefits (Dallas, NYC, SF, and Illinois)

For multiple years running, Genesis10 has been recognized as a Top Staffing Firm in the U.S., as a Best Company for Work-Life Balance, as a Best Company for Career Growth, for Diversity, and for Leadership, amongst others. To learn more and to view all our available career opportunities, please visit us at our website.
Genesis10 is an Equal Opportunity Employer. Candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.