Experience: Java 17+, Spring Boot, Microservices, Kafka, AWS
Job Description & Details
"The demand for robust, cloud\u2011native backend systems is soaring as companies shift to microservice architectures. As a Java Backend Developer, you\u2019ll be at the heart of building scalable services that power modern applications. This role offers a hybrid setup in Fort Lee, NJ, perfect for professionals who thrive in both collaborative office environments and focused remote work.\n\n# Job Summary\nWe are seeking a skilled Java Backend Developer to design, develop, and maintain high\u2011performance microservices using Java 17+, Spring Boot, and AWS. The role involves creating RESTful APIs, integrating Kafka streams, and working with both SQL and NoSQL databases while adhering to security standards such as OAuth.\n\n# Top 3 Critical Skills Table\n| Skill | Why it's critical | Mastery Level |\n|-------|-------------------|--------------|\n| Java 17+ | Core language for building reliable, high\u2011throughput services | Senior |\n| Spring Boot | Enables rapid microservice development and easy integration with cloud services | Senior |\n| Microservices Architecture | Provides scalability and resilience required for modern applications | Senior |\n\n# Interview Preparation\n1. **Explain how you would design a microservice that processes real\u2011time events from Kafka.**\n *What the interviewer is looking for:* Understanding of Kafka consumer groups, idempotency, fault tolerance, and integration with Spring Boot.\n2. **How do you secure REST APIs using OAuth 2.0?**\n *What the interviewer is looking for:* Knowledge of token validation, scopes, and Spring Security configuration.\n3. **What are the differences between SQL and NoSQL databases, and when would you choose each in a microservice context?**\n *What the interviewer is looking for:* Ability to weigh consistency vs. scalability, schema flexibility, and query patterns.\n4. **Describe a performance bottleneck you encountered in a Java application and how you resolved it.**\n *What the interviewer is looking for:* Profiling tools, GC tuning, concurrency handling, and code optimization techniques.\n5. **Walk through the steps to containerize a Spring Boot microservice and deploy it on AWS.**\n *What the interviewer is looking for:* Dockerfile creation, ECS/EKS concepts, CI/CD pipelines, and environment configuration.\n\n# Resume Optimization\n- Java 17+\n- Spring Boot\n- Microservices\n- REST APIs\n- Kafka\n- SQL\n- NoSQL\n- AWS\n- OAuth 2.0\n- Hybrid work environment\n\n# Application Strategy\nWhen reaching out to the recruiter, send a concise email that starts with a friendly greeting, attaches your updated resume, and clearly highlights your top relevant skills. Make sure to mention related skills you possess, such as Java 17+, Spring Boot, and Kafka, and reference any projects where you built or maintained microservices on AWS. Tailor your message to show how your experience aligns with the responsibilities listed in the job description.\n\n# Career Roadmap\n| Current Role | Typical Experience | Core Focus | Next Position |\n|--------------|-------------------|------------|---------------|\n| Java Backend Developer | 2\u20114 years Java, Spring Boot, microservices | Building and maintaining services | Senior Java Backend Developer |\n| Senior Java Backend Developer | 5\u20117 years, leading feature delivery | Architecture design, performance tuning | Lead Backend Engineer |\n| Lead Backend Engineer | 8\u201110 years, cross\u2011team coordination | Strategy, scalability, mentorship | Engineering Manager |\n| Engineering Manager | 10+ years, people & project leadership | Organizational impact, product vision | Director of Engineering |\n"