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EFFULGENT

Senior Java Developer

On site

Irving, United states

Senior

Freelance

19-11-2025

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Skills

Communication Teamwork Java JavaScript SQL NoSQL MongoDB Cassandra PostgreSQL GitHub GitLab CI/CD DevOps Docker Monitoring Jenkins Test Performance Testing Kanban Scrum Agile methodologies Problem-solving Architecture Programming Databases git Azure react AWS Software Development api testing cloud platforms Postman Agile Junit Spring React.js GCP HTML5 Spring Boot Maven Gradle CI/CD Pipelines Kafka Prometheus Grafana Microservices GitHub Actions

Job Specifications

Job Title: Java Back End Developer

Location: Plano, TX Hybrid Day1 Onsite (Local Candidates Only - In-person Interview)

Duration: Long Term Contract

Strong Back End with React

MOI: Final round: Hacker rank test & Technical round.

Job Summary:

We are looking for a skilled and motivated Java Developer to join our technology team in Plano, TX. The ideal candidate will have hands-on experience in Java 17+, Spring Boot, Microservices, and front-end technologies (React.js), with strong database and API development expertise. This role requires strong problem-solving skills, collaboration across teams, and a solid understanding of Agile software development practices.

Key Responsibilities:

l Design, develop, and implement Java-based applications and RESTful microservices using Spring Boot (5 or higher).

l Collaborate with cross-functional teams to define, design, and deliver scalable enterprise solutions.

l Develop APIs and integrations between internal and external systems using modern frameworks and protocols.

l Work with React.js and JavaScript frameworks to create responsive and user-friendly front-end interfaces.

l Optimize application performance through code refactoring, caching strategies, and JVM tuning.

l Perform unit, integration, and system testing using JUnit, Mockito, Postman, and JMeter.

l Participate in Agile ceremonies – sprint planning, backlog grooming, daily stand-ups, and retrospectives.

l Collaborate with DevOps teams to support CI/CD pipelines using Jenkins, Maven, Git, and Docker.

l Work with SQL and NoSQL databases (PostgreSQL, Oracle, Couchbase, MongoDB, Cassandra) for data management and optimization.

l Troubleshoot production issues, perform root cause analysis (RCA), and implement sustainable fixes.

Required Skills & Experience:

l Professional experience in Java and open-source technologies.

l Strong programming experience with Java 17+, J2EE, and Spring Boot (5 or higher).

l Proficiency in Microservices Architecture, REST API development, and Reactive Programming (Reactor, WebFlux, or Vert.x).

l Experience with frontend development using React.js, JavaScript, HTML5, and CSS3.

l Hands-on experience with SQL and NoSQL databases such as PostgreSQL, Oracle, Cassandra, Couchbase, or MongoDB.

l Familiarity with message brokers (Kafka, RabbitMQ) and API testing tools (Postman).

l Strong experience with build tools (Maven/Gradle) and source control systems (GitHub, GitLab, Bitbucket).

l Working knowledge of containerization (Docker) and application servers (JBoss, Tomcat).

l Good understanding of Agile methodologies (Scrum/Kanban).

l Excellent communication and teamwork skills, with the ability to work onsite with stakeholders and technical teams.

Preferred Skills:

l Experience with CI/CD tools (Jenkins, ArgoCD, or GitHub Actions).

l Familiarity with cloud platforms (AWS, GCP, or Azure).

l Exposure to performance testing and monitoring tools (JMeter, Grafana, Prometheus).

l Experience in Reactive Programming and event-driven microservices.

About the Company

Effulgent Inc – Illuminating Innovation At Effulgent Inc., we provide forward-thinking solutions that empower businesses to thrive in a digital-first world. Our core services include: Technology Consulting: Strategic IT guidance to align your business with the latest innovations. Software Development: Custom-built software solutions tailored to meet your unique needs. Cloud Services: Scalable and secure cloud integration for enhanced agility and performance. Data & Analytics: Transform raw data into actionable insights to dr... Know more