Location: Wilmington (DE), Columbus (OH), New Jersey, Charlotte (NC), Phoenix (AZ), Atlanta (GA), Maryland, Dallas (TX), NYC, NY/Jersey City, NJ/Alpharetta, GA
Job Type: Long-term contract
Salary: Competitive
Duration: Long-term
Experience: 7+ years Java, Spring Boot, Kafka, Microservices
Job Description & Details
"The demand for high\u2011performance, event\u2011driven backend systems has never been higher, especially as businesses shift to microservice architectures. A senior Java developer role that focuses on Spring Boot, Kafka, and MongoDB offers a chance to shape scalable services at the core of modern applications. This contract position gives you the flexibility of a W2 arrangement while working with cutting\u2011edge technologies across multiple U.S. hubs.\n\n# Job Summary\nWe are seeking a seasoned Java engineer to design, build, and maintain scalable backend services. The role involves developing microservices, REST APIs, and event\u2011driven pipelines using Spring Boot, Kafka, and MongoDB, while ensuring high availability and performance in a cloud environment.\n\n# Top 3 Critical Skills Table\n| Skill | Why it's critical | Mastery Level |\n|-------|-------------------|--------------|\n| Java | Core language for all backend services and performance tuning. | Senior |\n| Spring Boot | Enables rapid development of microservices and simplifies configuration. | Senior |\n| Kafka | Powers the event\u2011driven architecture essential for real\u2011time data flow. | Senior |\n\n# Interview Preparation\n1. **Explain how you would design a microservice that processes high\u2011volume Kafka streams.**\n *What the interviewer is looking for:* Understanding of consumer groups, partitioning, fault tolerance, and back\u2011pressure handling.\n2. **Describe the steps to optimize MongoDB queries for a large dataset.**\n *What the interviewer is looking for:* Index strategy, query profiling, schema design considerations, and sharding basics.\n3. **How do you implement circuit\u2011breaker patterns in Spring Boot applications?**\n *What the interviewer is looking for:* Knowledge of resilience libraries (e.g., Resilience4j), fallback methods, and monitoring.\n4. **What are the trade\u2011offs between synchronous REST APIs and asynchronous event\u2011driven communication?**\n *What the interviewer is looking for:* Insight into latency, coupling, scalability, and error handling.\n5. **Walk through a CI/CD pipeline you set up for deploying Java microservices.**\n *What the interviewer is looking for:* Experience with containerization, automated testing, blue\u2011green or canary deployments, and tooling (Jenkins, GitHub Actions, etc.).\n\n# Resume Optimization\n- Java\n- Spring Boot\n- Kafka\n- Microservices\n- REST APIs\n- MongoDB\n- Cloud (AWS/Azure/GCP)\n- Event\u2011driven architecture\n- CI/CD pipelines\n- Performance optimization\n\n# Application Strategy\nWhen reaching out to the recruiter, send a concise email that starts with a friendly greeting, attach your updated resume, and clearly highlight your top skills that match the role. Make sure to mention related skills you possess, such as **Java**, **Spring Boot**, and **Kafka**, and reference specific projects where you built scalable microservices or optimized database performance.\n\n# Career Roadmap\n| Current Role | Typical Experience | Core Focus | Next Position |\n|--------------|--------------------|------------|---------------|\n| Sr. Java Developer | 7+ years in Java, Spring, Kafka | Designing and delivering high\u2011scale backend services | Lead Java Engineer |\n| Lead Java Engineer | 2\u20114 years leading teams, architecture | Technical leadership, system architecture | Software Architect |\n| Software Architect | 3\u20115 years architecting enterprise solutions | End\u2011to\u2011end system design, technology strategy | Director of Engineering |\n"