Core Java Developer / Lead

Job Description:
Location | N/A, California,Georgia,New York
Duration | Long Term
About the Role

* We are seeking a skilled Core Java Developer to design, develop, test, and maintain high-performance, scalable, and reliable Java applications.
* The ideal candidate will have a strong foundation in core Java concepts, object-oriented programming, multithreading, data structures, design patterns, and enterprise application development.
* The successful candidate will collaborate with architects, developers, QA engineers, DevOps teams, product managers, and business stakeholders to deliver high-quality software solutions.

Key Responsibilities

* Design, develop, and maintain applications using Core Java .
* Write clean, efficient, reusable, and maintainable code.
* Apply object-oriented programming principles and software design patterns.
* Develop multithreaded, concurrent, and high-performance applications.
* Work with Java collections, exception handling, generics, streams, and lambda expressions.
* Build and consume RESTful web services and APIs.
* Develop modular and scalable application components.
* Implement business logic, validation, error handling, and transaction management.
* Work with relational and NoSQL databases.
* Write efficient SQL queries and optimize database interactions.
* Perform unit, integration, functional, and regression testing.
* Troubleshoot application issues, memory leaks, performance bottlenecks, and production defects.
* Participate in code reviews and ensure adherence to coding standards.
* Collaborate with cross-functional teams to understand requirements and deliver solutions.
* Contribute to technical design documents and implementation plans.
* Integrate applications with CI/CD pipelines.
* Support application deployment, monitoring, and production issue resolution.
* Participate in Agile ceremonies, sprint planning, daily stand-ups, reviews, and retrospectives.
* Stay current with Java releases, development practices, tools, and industry trends.

Required Qualifications

* Bachelors degree in Computer Science, Engineering, Information Technology, or a related field.
* 10+ years of experience in Java software development.
* Strong knowledge of Core Java , including:
* Object-oriented programming
* Collections framework
* Exception handling
* Generics
* Multithreading and concurrency
* Java I/O and NIO
* Streams and lambda expressions
* Java memory management
* Garbage collection
* Experience with Java 8 or later.
* Strong understanding of data structures, algorithms, and design patterns.
* Experience developing RESTful APIs and backend services.
* Knowledge of relational databases such as Oracle, SQL Server, MySQL, or PostgreSQL.
* Experience with SQL, JDBC, and ORM concepts.
* Familiarity with Maven or Gradle.
* Experience with Git or other version-control systems.
* Understanding of unit testing using JUnit, Mockito, or equivalent tools.
* Familiarity with Agile/Scrum development methodologies.
* Strong analytical, debugging, communication, and problem-solving skills.

Preferred Qualifications

* Experience with Java 11, 17, 21, or later.
* Experience with Spring, Spring Boot, Spring MVC, Spring Data, or Spring Security.
* Knowledge of microservices architecture.
* Experience with messaging technologies such as Kafka, RabbitMQ, JMS, or ActiveMQ.
* Familiarity with Docker and Kubernetes.
* Experience with cloud platforms such as AWS, Azure, or Google Cloud.
* Knowledge of CI/CD tools such as Jenkins, GitHub Actions, GitLab CI, or Azure DevOps.
* Experience with NoSQL databases such as MongoDB, Redis, Cassandra, or DynamoDB.
* Familiarity with distributed systems, caching, and event-driven architecture.
* Experience with application monitoring and observability tools.
* Knowledge of secure coding practices and application security.
* Experience with performance testing and profiling tools.
* Familiarity with Linux/Unix environments and shell scripting.

Technical Skills

Core Java

* Java SE
* Object-oriented programming
* Collections and generics
* Multithreading and concurrency
* Streams and lambda expressions
* Exception handling
* Java I/O and NIO
* JVM architecture
* Memory management and garbage collection
* Serialization and reflection
* Data structures and algorithms

Backend Development

* RESTful APIs
* and JSON
* JDBC
* Spring and Spring Boot
* Microservices
* Authentication and authorization
* Transaction management
* Service integration

Flexible work from home options available.