Lead Java Developer

Smart IT Frame LLC; Berkeley Heights (NJ); On-site; USD 110,000 - 150,000; Full time

Job summary

Smart IT Frame LLC in Berkeley Heights, NJ is seeking a highly skilled Java Backend Developer with DevOps expertise to design, build, and maintain scalable backend services.

You will bridge core application development and cloud infrastructure, owning deployment pipelines, containers, and monitoring to ensure reliability. The role emphasizes Java, Spring, microservices, and asynchronous messaging with Kafka or RabbitMQ.

Qualifications

• Proficiency in Java SE 11/17+ and the Spring ecosystem.
• Experience building high-performance microservices and RESTful APIs.
• Strong DevOps capabilities including CI/CD, containerization, and cloud monitoring.

Responsibilities

• Build microservices: design, develop, and maintain scalable APIs.
• Optimize databases with PostgreSQL/MySQL and migrations.
• Write clean, efficient, scalable Java code with proper patterns.
• Integrate systems using messaging: Kafka, RabbitMQ, or JMS.

Skills

Java Core

Spring ecosystem

Tools

Kafka

RabbitMQ

JMS

Docker

Kubernetes

PostgreSQL

MySQL

Job description

We are seeking a highly skilled Java Backend Developer with strong DevOps expertise to design, build, and maintain our high-performance, scalable backend services. In this role, you will bridge the gap between core application development and cloud infrastructure. You will not only write clean, efficient Java code but also own the deployment pipelines, containerization, and cloud environment monitoring to ensure maximum system reliability.

• Build Microservices: Design, develop, and maintain high-throughput, low-latency APIs and microservices using Java and Spring Boot.
• Optimize Databases: Write complex SQL queries, manage database migrations, and optimize schemas for PostgreSQL or MySQL.
• Write Clean Code: Apply robust object-oriented design patterns, multithreading, and concurrency handling.
• Integrate Systems: Implement asynchronous messaging solutions using Kafka, RabbitMQ, or JMS.

Required Technical Skills

• Java Core: Strong proficiency in Java (JDK 11 / 17 or higher) and the Spring ecosystem.