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A

Java Developer

ApTask
🌏 Worldwide
Remote
Senior
1 day ago
  • Java
  • J2EE
  • JVM
  • Object Oriented Programming
  • OOP
  • REST API
  • NoSQL
  • SQL
  • CI/CD
  • Devops
  • Spring Boot
  • Oracle
  • PostgreSQL
  • MySQL
  • JUnit
  • Mockito
  • Git
  • Maven
  • Gradle
  • Microservices
  • RabbitMQ
  • Docker
  • Kubernetes
  • AWS
  • Azure
  • GCP
  • Redis
  • Tomcat
  • WebLogic
  • JBOSS
1 day ago
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Job Summary

We are seeking an experiencedSenior Core Java Developer with10+ years of hands-on software development experience to design, develop, enhance, and maintain high-performance enterprise applications. The ideal candidate will have strong expertise inCore Java, Java/J2EE, multithreading, concurrency, collections, JVM, design patterns, and object-oriented programming.
The candidate will work closely with architects, product managers, QA engineers, and other development teams to deliver scalable, reliable, and high-quality software solutions.

Key Responsibilities

  • Design, develop, test, and maintain enterprise applications usingCore Java.
  • Develop scalable and high-performance backend services and applications.
  • Apply strong knowledge ofObject-Oriented Programming (OOP), SOLID principles, and design patterns.
  • Work extensively withJava Collections, Exception Handling, Multithreading, Concurrency, Generics, Streams, and Lambda expressions.
  • Analyze application performance and troubleshoot complex production issues.
  • PerformJVM tuning, memory analysis, garbage collection analysis, and performance optimization.
  • Design and implement reusable, maintainable, and testable software components.
  • Develop and integrateRESTful APIs and web services.
  • Work with relational and NoSQL databases and optimize SQL queries when required.
  • Participate in application architecture and technical design discussions.
  • Conduct code reviews and provide technical guidance to junior and mid-level developers.
  • Collaborate with QA teams to develop unit, integration, and automated tests.
  • Identify technical risks and recommend appropriate solutions.
  • Troubleshoot defects and production issues and provide root-cause analysis.
  • Contribute to CI/CD, automated build, deployment, and DevOps processes.
  • Ensure applications follow security, coding, performance, and development best practices.
  • Prepare technical documentation and contribute to engineering standards.

Required Skills

  • 10+ years of professional Java development experience
  • Strong expertise inCore Java
  • Strong understanding of:
    • Java Collections Framework
    • Multithreading & Concurrency
    • Exception Handling
    • Generics
    • Java Streams
    • Lambda Expressions
    • Java Memory Management
    • JVM Architecture
    • Garbage Collection
    • Serialization
  • Strong knowledge ofObject-Oriented Design and Design Patterns
  • Experience withJava 8+, preferably Java 11/17/21
  • Strong experience developingREST APIs / Web Services
  • Experience withSpring / Spring Boot
  • Strong SQL and relational database experience
  • Experience with databases such asOracle, PostgreSQL, MySQL, or SQL Server
  • Experience withJUnit, Mockito, or other testing frameworks
  • Experience withGit and source-control practices
  • Experience withMaven or Gradle
  • Understanding ofCI/CD pipelines and DevOps practices
  • Strong debugging and problem-solving skills

Preferred Skills

  • Experience withMicroservices architecture
  • Experience withKafka, RabbitMQ, or other messaging platforms
  • Experience withDocker and Kubernetes
  • Cloud experience withAWS, Azure, or GCP
  • Experience with distributed systems and high-volume applications
  • Knowledge of caching technologies such asRedis
  • Experience with application servers such asTomcat, WebLogic, or JBoss
  • Experience with performance monitoring and observability tools
  • Knowledge of secure coding practices and application security

Education

Bachelor’s or Master’s degree inComputer Science, Information Technology, Engineering, or a related field, or equivalent professional experience.

Key Technical Keywords

Core Java, Java, Java 8+, Java 11, Java 17, Java 21, J2EE, OOP, Collections, Multithreading, Concurrency, JVM, Garbage Collection, Memory Management, Design Patterns, SOLID, Spring, Spring Boot, REST API, Microservices, SQL, Oracle, PostgreSQL, MySQL, JUnit, Mockito, Maven, Gradle, Git, Docker, Kubernetes, Kafka, AWS, Azure, GCP, CI/CD.

About ApTask:
ApTask is a leading global provider of workforce solutions and talent acquisition services, dedicated to shaping the future of work. As an African American-owned and Veteran-owned company, ApTask offers a comprehensive suite of services, including staffing and recruitment solutions, managed services, IT consulting, and project management. With a focus on excellence, collaboration, and innovation, ApTask provides unparalleled opportunities for professional growth and development. As a member of the ApTask team, you will have the chance to connect businesses with top-tier professionals, optimize workforce performance, and drive success across diverse industries. Join us at ApTask and be part of our mission to empower organizations to thrive while fostering a diverse and inclusive work environment.

Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.

Candidate Data Collection Disclaimer:
At ApTask, we prioritize safeguarding your privacy. As part of our recruitment process, certain Personally Identifiable Information (PII) may be requested by our clients for verification and application purposes. Rest assured, we strictly adhere to confidentiality standards and comply with all relevant data protection laws. Please note that we only collect the necessary information as specified by each client and do not request sensitive details during the initial stages of recruitment.

If you have any concerns or queries about your personal information, please feel free to contact our compliance team atcompliance@aptask.com.

Applicant Consent:
By submitting your application, you agree to ApTask's (www.aptask.com)Terms of Use andPrivacy Policy, and provide your consent to receive SMS and voice call communications regarding employment opportunities that match your resume and qualifications. You understand that your personal information will be used solely for recruitment purposes and that you can withdraw your consent at any time by contacting us at 732-355-8000 or help@aptask.com. Message frequency may vary. Msg & data rates may apply.

Java Developer · ApTask

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