Java Full-Stack Developer - with Android Mobile Application DevelopmentCrystal Equation • Ridgefield Park, NJ

Java Full-Stack Developer - with Android Mobile Application Development

Crystal Equation • Ridgefield Park, NJ

2 days ago

Job type

Full-time

Job description

Java Full-Stack Developer - with Android Mobile Application Development

Summary :

This role primarily focuses on Java-based Full-Stack application development , while also requiring the ability to support, maintain, and modify existing Android Mobile Applications .

The ideal candidate is a senior Java Full-Stack developer who can understand Android mobile application codebases and perform basic modification, build, and deployment tasks to ensure service continuity and operational stability.

Key Responsibilities :

Primary Responsibilities – Java Full-Stack Development

Lead and perform Java Full-Stack application development as the primary responsibility
Design, develop, and enhance backend services using Java, Spring / Spring Boot
Implement and maintain frontend components using HTML, CSS, JavaScript and modern frameworks
Support existing Java-based services and develop future enhancements based on business requirements

Secondary Responsibilities – Android Mobile App Support

Provide operational support and maintenance for existing Android Mobile Applications

Understand Android application architecture and source code

Perform minor code changes, bug fixes, build, and deployment for Android applications

Support incident handling and troubleshooting related to Android mobile services

Operations & Service Stability

Provide application-level operational support for both Java and Android systems

Participate in incident response, root cause analysis, and corrective actions

Ensure system stability, service continuity, and reduced operational risk

Knowledge Continuity & Collaboration

Maintain technical documentation and support knowledge transfer

Collaborate with cross-functional teams to ensure smooth operations and enhancement delivery

Required Qualifications :

Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience)

9+ years of professional experience in Java Full-Stack application development

Strong expertise in : Java, Spring / Spring Boot Web technologies (HTML, CSS, JavaScript, React / Angular or equivalent) RESTful API design and database integration

Experience in application operations, maintenance, and incident support

Android Experience Requirements (Support-Oriented)

Ability to understand existing Android Mobile App source code

Experience or capability to : Modify existing Android code (Kotlin and / or Java) Build and package Android applications Perform deployment and operational support tasks

Senior-level Android development experience is NOT required

Junior-level Android skills are acceptable , as long as the candidate can independently support maintenance, build, and deployment

Preferred Qualifications :

Experience supporting enterprise-scale or production-critical systems

Familiarity with DevOps practices, CI / CD pipelines, and monitoring tools

Experience working in cloud or hybrid infrastructure environments

Background in both development-focused and operations-focused roles

Key Competencies :

Strong ownership mindset for application stability and service continuity

Effective problem-solving and incident response skills

Clear communication with technical and non-technical stakeholders

Ability to prioritize Java Full-Stack development while handling Android support needs

Pay range is $50 - $55 per hour with full benefits available, including paid time off, medical / dental / vision / life insurance, 401K, parental leave, and more. Our compensation reflects the cost of labor across several US geographic markets. Pay is based on several factors including market location and may vary depending on job-related knowledge, skills, and experience.

THE PROMISES WE MAKE :

At Crystal Equation, we empower people and advance technology initiatives by building trust. Your recruiter will prep you for the interview, obtain feedback, guide you through any necessary paperwork and provide everything you need for a successful start. We will serve to empower you along the way and provide the path for your professional journey.

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Java Fullstack Developer • Ridgefield Park, NJ

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