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Core Java Jobs (NOW HIRING)

Keylent Inc

Core Java Developer

Manhattan, NY · On-site

Keylent Inc is seeking a Core Java Developer with extensive experience in Java development. The role involves leading a team of developers and working within an Agile Scrum environment to deliver ...

Deegit Inc

Core Java

Mountain View, CA · On-site

Core Java Location: Mountain View, CA Duration: 6+ months • At least 4 years in Java development • Experience to create new application from scratch • Experience in implementing RESTful API • ...

Keylent Inc

Core Java Developer

Manhattan, NY · On-site

Keylent Inc is seeking a Core Java Developer with extensive experience in Java development. The role involves leading a team of developers and working within an Agile Scrum environment to deliver ...

Jobsbridge

Core Java Developer

Sunnyvale, CA

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Skills: Core Java Spring framework Unix Oracle PL/SQL Multithreading File ...

Syntricate Technologies

Core java Developer

Tampa, FL · On-site

Syntricate Technologies is seeking a Core Java Developer. The role involves solid Java experience, particularly in backend development, and requires strong skills in Core Java and Spring Framework.

Jobsbridge

Core Java Developer

San Francisco, CA

Company Description Intelliswift Software, Inc - 8-10 years hands-on experience in Java project - Very strong in Core Java, J2EE - Proven experience in Java Web Services, Spring, Hibernate - Must ...

Sonsoft Inc

Core Java

Atlanta, GA · On-site

At least 6 years of experience in Core Java, System Analysis and Application Development * At least 5 years of experience in J2EE concepts,MVC architecture,advanced Java programming/ systems design.

Info Way Solutions

Core Java Developer

Austin, TX · On-site

Info Way Solutions is seeking a Core Java Developer for an onsite position in Austin, TX. The role focuses on developing applications using Core Java and related technologies. Qualifications

Stellar IT Group

Core Java Developer

Saint Louis, MO · On-site

Core Java Developer Location: Remote Duration: 6+ Months Contract Role Overview We are seeking experienced Senior Core Java Developers to join our team and contribute to building secure, scalable ...

krg technology inc

Core Java Developer

San Jose, CA · On-site

Role: Core Java Developer (Java BE) Location: San Jose CA Customer: CISCO Type: FTE * CORE JAVA * Garbage Collections * Multi Treading * Expectation handling * Spring Frame work * Restful

ClifyX

Core Java Developer

Sunnyvale, CA · On-site

The role involves Core Java J2EE development, working with Java frameworks, and hands-on experience with services and databases. Responsibilities : • Core Java J2EE development experience. • ...

Info-Ways

Core Java

New York, NY · On-site

Core Java Location: NJ/NYC Duration: Fulltime BGV will be done for the selected candidates. Looking for Java Lead with the following skills- RX Java exp o Asynchronous event based programming[Must] o ...

Sonsoft Inc

Core Java

New York, NY

Note: candidate need to strong on Core Java with hands/ Hands on Java is must. * 7+ years experience as a technical analyst in financial industry * Functional understanding of retail banking and/or ...

AlgoBrain Inc

Core Java Developer

Atlanta, GA · Remote

Core Java Developer Location : Remote Exp: 9+ years Visa : GC and USC Core java, Java8 Spring Boot, Spring JPA Collections, Multi-threading SQ Drop email to salman@ridgeitsolutions .com Additional ...

Sonsoft Inc

Core Java

New York, NY

Note: candidate need to strong on Core Java with hands/ Hands on Java is must. * 7+ years experience as a technical analyst in financial industry * Functional understanding of retail banking and/or ...

AlgoBrain Inc

Core Java Developer

Atlanta, GA · On-site +1

Core Java Developer Location : Remote Exp: 9+ years Visa : GC and USC Core java, Java8 Spring Boot, Spring JPA Collections, Multi-threading SQ Drop email to salman@ridgeitsolutions .com ...

Sonsoft Inc

Core Java

Atlanta, GA · On-site

At least 6 years of experience in Core Java, System Analysis and Application Development * At least 5 years of experience in J2EE concepts,MVC architecture,advanced Java programming/ systems design.

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How much do core java jobs pay per hour?

As of Sep 11, 2026, the average hourly pay for core java in the United States is $59.92, according to ZipRecruiter salary data. Most workers in this role earn between $50.48 and $67.31 per hour, depending on experience, location, and employer.

What is a Core Java developer?

Core Java developers are software professionals who specialize in building applications using the fundamental features and libraries of the Java programming language. They focus on core concepts such as object-oriented programming, data structures, multithreading, exception handling, and the Java API. Core Java is the foundation for other Java technologies like Java EE, and developers in this role often create desktop, server-side, or foundational components of larger systems. Their expertise is critical in ensuring robust, scalable, and maintainable Java applications.

What skills and qualifications are needed to thrive as a Core Java developer?

To thrive as a Core Java Developer, you need strong proficiency in Java programming, object-oriented principles, data structures, and a relevant degree in computer science or a related field. Familiarity with tools such as Eclipse or IntelliJ IDEA, version control systems like Git, and frameworks like Spring is typically required, along with certifications such as Oracle Certified Professional Java Programmer (OCPJP) being advantageous. Excellent problem-solving abilities, attention to detail, and effective communication skills help set standout developers apart. These skills ensure robust, maintainable code and efficient collaboration within software development teams.

What challenges do Core Java developers face when working on large-scale enterprise applications?

Core Java developers working on large-scale enterprise applications often encounter challenges such as managing complex codebases, ensuring thread safety in concurrent environments, and optimizing application performance. They may also need to integrate with legacy systems and maintain code readability for long-term support. Collaborating effectively with cross-functional teams, including QA, DevOps, and business analysts, is essential to meet project goals and maintain high software quality.

What is the difference between Core Java vs Java Developer?

AspectCore JavaJava Developer
FocusFundamental Java programming, core APIs, basic application developmentBuilding, testing, and maintaining Java applications, including web and enterprise solutions
SkillsJava syntax, OOP principles, basic APIsCore Java, frameworks (Spring, Hibernate), web technologies
Work EnvironmentLearning and understanding Java fundamentalsDeveloping full applications, debugging, deployment

Core Java refers to the fundamental Java programming language and its core APIs, essential for understanding Java basics. Java Developer, on the other hand, applies these fundamentals to develop complete applications, often using frameworks and additional tools. While Core Java is foundational, Java Developers build on this knowledge to create real-world software solutions.

Are Core Java jobs still in demand?

Core Java jobs remain in demand across various industries such as finance, healthcare, and technology, especially for roles involving backend development, Android app development, and enterprise applications. Proficiency in Java, along with knowledge of frameworks like Spring and tools such as Maven, enhances employability in this field.

Can I get a job with Core Java?

Core Java is a fundamental skill for many software development roles, especially in backend and enterprise applications. Proficiency in Java programming, understanding of object-oriented principles, and familiarity with development tools like IDEs and version control are essential for securing such jobs.

What jobs can I get with Core Java?

Core Java skills are essential for roles such as Java Developer, Software Engineer, Backend Developer, and Application Programmer. These positions typically involve developing, maintaining, and testing Java-based applications, often requiring knowledge of frameworks like Spring or Hibernate and familiarity with object-oriented programming concepts.
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CORE Java jobs near you
Infographic showing various Core Java job openings in the United States as of September 2026, with employment types broken down into 1% Internship, 1% As Needed, 82% Full Time, 14% Part Time, and 2% Contract. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution, with an average salary of $124,638 per year, or $59.9 per hour.

Core Java Developer

Manhattan, NY • On-site

Keylent Inc
Internet and IT • 11 - 50 employees
Learn more about Keylent Incexternal

Full-time

Re-posted 24 days ago

Job description

Job Summary:
Keylent Inc is seeking a Core Java Developer with extensive experience in Java development. The role involves leading a team of developers and working within an Agile Scrum environment to deliver high-quality software solutions.
Responsibilities:
• 8+ years hands-on Java Development
• 5+ year leading team of 5+ developers
• 3+ year work experience in Agile Scrum team
• Core Java
• Very strong hands on in Core Java
• Good in Java design patterns
• Experience in consuming and producing Java web services (both SOAP and RESTFul).
• Good to have Microservices
• Strong Multithreading skills, Data Structures, Concurrency
• Experience in Spring components like AOP, Integration, MVC (good to have: Boot)
• Experience in SQL/PL-SQL
• Worked in Agile Scrum
• Experience in JIRA and Splunk
• Excellent in Analytical and troubleshooting techniques
• Excellent Communications
• APPS GENERIC SKILLS - JAVA AND J2EE TECHNOLOGIES-J2EE
Qualifications:
Required:
• 8+ years hands-on Java Development
• 5+ year leading team of 5+ developers
• 3+ year work experience in Agile Scrum team
• Core Java
• Very strong hands on in Core Java
• Good in Java design patterns
• Experience in consuming and producing Java web services (both SOAP and RESTFul)
• Strong Multithreading skills, Data Structures, Concurrency
• Experience in Spring components like AOP, Integration, MVC
• Experience in SQL/PL-SQL
• Worked in Agile Scrum
• Experience in JIRA and Splunk
• Excellent in Analytical and troubleshooting techniques
• Excellent Communications
• APPS GENERIC SKILLS - JAVA AND J2EE TECHNOLOGIES-J2EE
Preferred:
• Good to have Microservices
• Good to have: Boot
Company:
Keylent provides Software Development Services in the Cloud, Analytics and Digital Transformation space. Founded in 2010, the company is headquartered in Wilmington, USA, with a team of 201-500 employees. The company is currently Growth Stage.
Keylent logo

About Keylent

Sourced by ZipRecruiter

Keylent Inc, based in Wilmington, DE, US, operates in the dynamic IT services and solutions industry. Their official platform, keylent.com, further details their robust suite of services which primarily comprise software consulting, quality assurance, project management, and business intelligence. Keylent Inc has been an integral part of the industry since its inception, serving diverse clients with their specialized, innovative IT solutions. This customer-centric firm is founded on the core values of reliability, integrity, and zealous innovation. Their mission is to empower businesses in navigating the complex technological landscape with ease, efficiency, and confidence. Notably, Keylent Inc has been recognized for its commitment to exceptional service delivery and the profound impact of its solutions in facilitating business growth.

Industry

Internet and it

Company size

11 - 50 Employees

Headquarters location

Wilmington, DE, US

Year founded

2010

Social media

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