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Fullstack Developer Java Jobs in New York (NOW HIRING)

Apex Informatics

Fullstack Java Developer

New York, NY · On-site

$57.50 - $74/hr

Fullstack Java Developer Location: New York City, NY * Key Responsibilities * Design, develop, and maintain full stack applications using: * Java (Core + Spring Boot) * ReactJS (modern frontend ...

CYNET SYSTEMS

Fullstack Developer

New York, NY · On-site

$53 - $58/hr

Develop new components in Java and maintain/enhance existing components in Java/Angular/Python ... Mentor junior developers, providing guidance and knowledge sharing. * Develop and maintain ...

CYNET SYSTEMS

Fullstack Developer

Whippany, NJ · On-site

$65 - $70/hr

Strong proficiency in Java 8+/11+, Spring Boot, and Spring MVC. * Strong proficiency in React.js ... Experience with CI/CD tools such as Jenkins, Azure DevOps, or GitHub Actions. * Experience with ...

General Intuition

Fullstack Engineer

New York, NY · On-site

$180K - $275K/yr

What We're Looking For * 5+ years of fullstack engineering experience * Experience with React ... Bonus: Experience building and shipping your own products from 0 → 1; Java, C#, and C ...

Jobs for Humanity

Full Stack Java Developers

Woodbridge, NJ · On-site

$53 - $68.50/hr

Full Stack Java Developer-Manager Company: EY Location: Iselin, NJ Salary: Education: Less Than ... Prior fullstack software product development experience with a preferred understanding of DevOps ...

Capgemini

Java Fullstack Developer with AWS

New York, NY · On-site

$118K/yr

Strong Experience in building Java/Spring Boot microservices. * Experience in using AWS services ... engineering, all fueled by its market leading capabilities in AI, generative AI, cloud and data ...

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Fullstack Developer Java information

What are the roles and responsibilities of a fullstack developer Java?

A Fullstack Developer Java is responsible for designing, developing, and maintaining both the front-end and back-end components of web applications using Java and related technologies. Their duties include building user interfaces, developing server-side logic, integrating APIs, and managing databases. They often work with frameworks such as Spring Boot for back-end development and may use JavaScript frameworks like React or Angular for the front-end. Fullstack Java developers also ensure the application is secure, scalable, and meets client requirements. Collaboration with other team members, such as UI/UX designers and testers, is a key part of the role.

How does a fullstack developer Java balance front-end and back-end responsibilities within a team?

Fullstack Developer Java roles often require a flexible approach, as you may shift between front-end tasks like building user interfaces (using frameworks such as React or Angular) and back-end development (using Java, Spring Boot, etc.) based on project needs. Collaboration with UI/UX designers, DevOps engineers, and backend specialists is common, especially in agile environments where responsibilities can change sprint-to-sprint. It's important to communicate openly with team members to ensure seamless integration and to manage workload effectively. Being comfortable with both client-side and server-side technologies allows you to contribute across the stack and increases your value within the team.

What are the key skills and qualifications needed to thrive as a fullstack developer Java?

To thrive as a Fullstack Developer Java, you need strong proficiency in Java, JavaScript, HTML, CSS, and a solid understanding of both backend and frontend frameworks, typically supported by a degree in computer science or related field. Familiarity with tools like Spring Boot, React or Angular, REST APIs, version control systems like Git, and experience with databases such as MySQL or MongoDB are commonly required. Excellent problem-solving, teamwork, and communication skills help developers collaborate effectively and deliver robust solutions. These competencies ensure seamless end-to-end development, allowing for the creation of scalable, maintainable, and user-friendly web applications.

What is the difference between Fullstack Developer Java vs Backend Developer Java?

AspectFullstack Developer JavaBackend Developer Java
Primary FocusDeveloping both frontend and backend componentsDeveloping server-side logic and database integration
Required SkillsJava, HTML, CSS, JavaScript, frameworks like React or AngularJava, Spring, Hibernate, database management
Work EnvironmentCollaborates on full application stack, often in agile teamsFocuses on backend systems, APIs, and server-side architecture
CertificationsJava certifications, fullstack development coursesJava certifications, backend-specific courses

Fullstack Developer Java and Backend Developer Java share core Java skills and often work within similar industries. However, fullstack developers handle both frontend and backend tasks, while backend developers focus solely on server-side logic. Your choice depends on whether you prefer working across the entire application or specializing in backend systems.

What cities in New York are hiring for Fullstack Developer Java jobs?

Cities in New York with the most Fullstack Developer Java job openings:

Fullstack Developer Java jobs near you
Infographic showing various Fullstack Developer Java job openings in New York as of August 2026, with employment types broken down into 78% Full Time, 7% Part Time, 1% Temporary, and 14% Contract. Highlights an 80% Physical, 6% Hybrid, and 14% Remote job distribution.

Fullstack Java Developer

New York, NY • On-site

Apex Informatics
IT Services • 1 - 10 employees
Learn more about Apex Informaticsexternal

$57.50 - $74/hr

Other

This job post has expired today. Applications are no longer accepted.

Job description

Title: Fullstack Java Developer
Location: New York City, NY
Job Description:
  • Key Responsibilities
  • Design, develop, and maintain full stack applications using:
    • Java (Core + Spring Boot)
    • ReactJS (modern frontend development)
  • Build and enhance microservices-based architectures with a focus on:
    • Performance
    • Scalability
    • Low latency
  • Develop and implement Kafka-based streaming solutions for:
    • Real-time data ingestion
    • Event-driven data distribution
  • Contribute to the migration from SQL Server to Oracle Exadata, including:
    • Data model optimization
    • Query tuning and performance improvements
  • Optimize systems supporting real-time market data processing and distribution
  • Leverage in-memory caching technologies (Hazelcast or similar) to support low-latency data access
  • Develop and consume RESTful APIs
  • Partner with Front Office and Production Support teams to:
    • Troubleshoot critical issues
    • Ensure platform stability and uptime
  • Write and maintain unit and integration tests
  • Participate in architectural discussions around:
    • Messaging frameworks
    • Data caching strategies
    • Distributed systems design

•
  • Required Skills
  • Strong hands-on experience with:
    • Core Java
    • Spring Boot / Spring Framework (Data, MVC, etc.)
  • Proven experience with Apache Kafka for real-time streaming and event-driven architectures
  • Strong background in Microservices architecture and distributed systems design
  • Frontend development experience with:
    • ReactJS (preferred) or similar modern frameworks
  • Experience with relational databases and strong SQL skills
    • Exposure to Oracle / Exadata is highly preferred (or willingness to ramp quickly)
  • Experience with caching technologies (Hazelcast or similar)
  • Strong understanding of:
    • REST API design and development
    • High-performance, low-latency system design
  • Experience working in trading, capital markets, or market data environments

•
  • Nice to Have
  • Prior experience with Oracle Exadata migrations or optimization
  • Familiarity with:
    • DTCC, trade flows, or market data feeds
  • Experience with Drools or rules engines
  • Scripting experience (Python, Shell, or PowerShell)
  • Exposure to production support / incident management in trading environments
  • Knowledge of financial instruments:
    • Equities
    • Fixed Income
    • Derivatives

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