Full Stack Developer (Java/Python) - Onsite

Genesis10 • Pennington, NJ

2d • Onsite

About The Position

Genesis10 is seeking a Full Stack Developer with expertise in Java and/or Python and event-driven architectures using Apache Kafka for a contract position with a Global Financial Institution in Pennington, NJ. This is a 12+ month contract opportunity. The role involves designing, developing, and maintaining scalable applications across frontend and backend layers to deliver high-quality, secure, and performant systems.

Requirements

• Bachelor's degree in Computer Science, Engineering, or related field
• 5+ years of experience in software development
• Strong experience in Java and/or Python backend development
• Strong experience in Apache Kafka / messaging systems
• Solid understanding of RESTful APIs
• Solid understanding of distributed systems & microservices architecture
• Experience with frontend frameworks (React, Angular, or similar)
• Proficiency with Git, version control
• Proficiency with relational and NoSQL databases (e.g., PostgreSQL, MongoDB)

Nice To Haves

• Familiarity with cloud platforms (AWS, Azure, or GCP)

Responsibilities

• Design, develop, and maintain end-to-end web applications (frontend + backend)
• Build scalable microservices and RESTful APIs using Java (Spring Boot) and/or Python (FastAPI, Flask, Django)
• Develop and maintain event-driven systems using Apache Kafka (producers, consumers, streams)
• Work with frontend technologies such as React, Angular, or Vue.js
• Ensure application performance, scalability, and reliability
• Implement CI/CD pipelines and support DevOps processes
• Collaborate with product owners, architects, and other developers
• Perform code reviews, testing (unit/integration), and debugging
• Ensure security best practices and compliance standards

Benefits

• 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)

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level