Java Developer

Keen Technology Solutions LLC; Pasadena (CA); On-site; USD 120,000 - 160,000; Full time

Job summary

Keen Technology Solutions LLC is seeking a skilled Java developer to design and implement RESTful services, microservices, and batch processing solutions. The role requires strong Java 8–17+ capabilities, Spring Boot mastery, and experience with Spring Data JPA, DI/AOP, and modern IDEs.

You should be comfortable with Git, Gradle, SQL/NoSQL databases, and testing approaches (unit/integration/TDD). Familiarity with Agile and Waterfall methodologies, along with strong communication and

Qualifications

• Proficiency in Java 8–17+ with lambda expressions, streams, Optional APIs for clean, null-safe code.
• Strong Spring Boot experience for RESTful APIs, microservices, DI, AOP, Bean lifecycle management.
• Familiar with microservices architecture and best practices.
• Experience with batch processing frameworks and tools.
• Experience in Agile development environments.
• Understanding of Waterfall methodology and its application in software development.
• Proficiency with Git and Gradle; Azure DevOps optional.
• Experience using Eclipse/IntelliJ/VS Code; GitHub Copilot integrations.
• Knowledge of SQL and NoSQL databases.
• Experience with unit, integration testing and TDD.
• Strong communication and problem-solving skills.

Skills

Java proficiency

Communication skills

Problem solving

Agile methodology

Waterfall methodology

Tools

Spring Boot

Spring Web

Spring Data JPA

Git

Gradle

Azure DevOps

Eclipse

IntelliJ

VS Code

GitHub Copilot

Job description

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Requirements

• Proficiency in Java: Strong knowledge of the Java programming language, with hands‑on experience in core Java 8–17+ features including lambda expressions, stream API, Optional API etc. for writing cleaner, null‑safe code.
• Deep experience with Spring Boot for building RESTful APIs, microservices, and enterprise applications including DI, AOP, and Bean lifecycle management. Hands‑on experience with Spring Web, Spring Data JPA, and writing custom queries.
• Microservices Architecture: Familiarity with microservices architecture and best practices.
• Batch Processing: Understanding and experience with batch processing frameworks and tools.
• Agile Methodology: Experience working in Agile development environments.
• Waterfall Methodology: Understanding of Waterfall methodology and its application in software development.
• Build and Deploy environment: Proficiency with Git and Gradle. Azure DevOps optional.
• Development Environment: Expertise on Eclipse/IntelliJ/VS Code. Strong experience with GitHub Copilot using Claude or other LLMs.
• Database Knowledge: Familiarity with SQL and NoSQL databases.
• Testing: Experience with unit testing, integration testing, and test‑driven development (TDD).
• Communication Skills: Strong verbal and written communication skills.
• Problem‑Solving Skills: Excellent analytical and problem‑solving abilities.