Full Stack Java Expert

Intone Inc; Jersey City, Northern (NJ, KY); Hybrid; USD 124,000 - 193,000; Full time

Job summary

Intone Inc. in Jersey City, New Jersey seeks a senior Full Stack Java Expert for a 6+ month contract to contribute to enterprise-scale application development on both frontend and backend. You will design RESTful APIs, build microservices, and ensure secure coding standards while collaborating in Agile teams.

You will work with Core Java, Spring Boot, React or Angular, and modern CI/CD practices, delivering robust, scalable solutions with a focus on performance and quality.

Qualifications

• Minimum 8+ years of software development experience.
• 6+ years hands-on Core Java development with Java 8+ features.
• 4+ years UI/frontend experience using React.js and/or Angular.
• 4+ years backend services with Spring, Spring Boot, RESTful APIs, microservices.
• 3+ years integrating front-end with REST APIs and distributed services.
• 3+ years relational DBs and SQL; ORM like Hibernate/JPA.
• 3+ years Git, CI/CD, automated builds, unit testing, code-quality practices.
• Strong security, authentication/authorization, error handling, production support.

Responsibilities

• Develop and maintain full-stack enterprise applications using Core Java, Spring Boot, and modern frontend frameworks.
• Design and implement RESTful APIs and microservices for backend systems.
• Build responsive user interfaces using React.js and/or Angular with JavaScript/TypeScript, HTML5, and CSS3.
• Integrate frontend applications with distributed backend services and REST APIs.
• Manage relational databases, write optimized SQL queries, and work with ORM frameworks such as Hibernate/JPA.
• Implement and maintain CI/CD pipelines, automated builds, and unit testing practices.
• Perform performance optimization, debugging, and root-cause analysis on production systems.
• Apply security best practices including authentication, authorization, and secure coding standards.
• Collaborate with architecture, engineering, QA, and product teams in Agile/Scrum environments.
• Provide production support and contribute to continuous improvement of code quality.

Skills

Core Java

Spring Boot

React.js

Angular

RESTful APIs

Microservices

SQL

CI/CD

Git

JVM & Concurrency

Tools

Hibernate/JPA

Git

CI/CD Pipelines

Job description

We are seeking a Full Stack Java Expert for a contract position based in Jersey City, New Jersey. This role is expected to last 6+ months and offers the opportunity to contribute to enterprise-scale application development across both frontend and backend technologies.

Responsibilities

• Develop and maintain full-stack enterprise applications using Core Java, Spring Boot, and modern frontend frameworks
• Design and implement RESTful APIs and microservices for backend systems
• Build responsive user interfaces using React.js and/or Angular with JavaScript/TypeScript, HTML5, and CSS3
• Integrate frontend applications with distributed backend services and REST APIs
• Manage relational databases, write optimized SQL queries, and work with ORM frameworks such as Hibernate/JPA
• Implement and maintain CI/CD pipelines, automated builds, and unit testing practices
• Perform performance optimization, debugging, and root-cause analysis on production systems
• Apply security best practices including authentication, authorization, and secure coding standards
• Collaborate with architecture, engineering, QA, and product teams in Agile/Scrum environments
• Provide production support and contribute to continuous improvement of code quality

Qualifications

• Required
  • Minimum 8+ years of overall software application development experience
  • Minimum 6+ years of hands-on Core Java development experience, including Java 8+ features, collections, concurrency/multithreading, exception handling, JVM fundamentals, and object-oriented design
  • Minimum 4+ years of hands-on UI/front-end development experience using React.js and/or Angular with JavaScript/TypeScript, HTML5, and CSS3
  • Minimum 4+ years of experience developing enterprise backend services using Spring, Spring Boot, RESTful APIs, and microservices
  • Minimum 3+ years of experience integrating front-end applications with REST APIs and distributed backend services
  • Minimum 3+ years of experience with relational databases and SQL; experience with ORM frameworks such as Hibernate/JPA
  • Minimum 3+ years of experience with Git-based source control, CI/CD pipelines, automated builds, unit testing, and code-quality practices
  • Strong understanding of application security, authentication/authorization, secure coding practices, and production-grade error handling
  • Demonstrated experience with performance optimization, debugging, root-cause analysis, and production support for enterprise applications
  • Experience working in Agile/Scrum teams and collaborating across architecture, engineering, QA, and product functions