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Backend Engineer Java Jobs in West Islip, NY (NOW HIRING)

Opexpert

Senior Software Engineer - Java Backend

Greenwich, CT · On-site

$140K - $184K/yr

... 2. Back end: Core Java. Data model and transport layers. Multithreaded/high throughput. XML. 3. Work on one of the core brokerage processes that deals with user authentication to access trading ...

Staffingine LLC

Java Backend Developer

New York, NY · On-site

$55.25 - $71.75/hr

Java Backend Developer Job Location: New York City, NY Job Type: Contract * Design Code and test changes to the UST Algo * Enhance integration of UST Algo with additional broker markets Fenics and ...

Staffingine LLC

Java Back End Developer

New York, NY · On-site

$55.25 - $71.75/hr

Java Back End Developer Job Location: New York City, NY. Job Type: Contract * Must Have Java 8 Spring boot Microservices REST API angular44 JavascriptES56 up CSS HTML Bootstrap Oracle DB and SQL Git ...

Arq

Senior Software Engineer (Java)

New York, NY · Hybrid

$136K - $180K/yr

What we're looking for As a Backend Engineer, you'll design, develop, and maintain scalable, secure ... Our technology stack is based predominantly on Java 25 on the backend with Postgres database * We ...

Slang AI

Sr Backend Engineer

New York, NY · On-site

$185K - $215K/yr

Our backend is written in Kotlin, but prior Kotlin experience is not required; strong fundamentals ... Experience with Kotlin, Java, or another JVM language, and familiarity with functional programming ...

US Mobile

Senior Backend Engineer

New York, NY · On-site

$140K - $180K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

We're looking for an exceptional backend engineer and hands-on architect to help us scale and ... Develop and maintain RESTful APIs using Java (Spring Boot or related web frameworks) or Python ...

Jobsbridge

Java Back End Developer

New York, NY

$55.25 - $71.75/hr

Qualifications Java Back End Developer,J2EE, JSP, Servlets, JSTL,Struts framework,Web and J2EE . Additional Information Multiple Openings for GC/Citizen

Sunbit

Sr. Backend Engineer

New York, NY · On-site +1

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Description JOB TITLE: Sr. Backend Engineer LOCATION: Jersey City (Hybrid, 3 days/ week) REPORTS TO ... Experience in Kotlin, Java, or Scala with hands-on experience. * Experience in the Spring Framework.

US Mobile

Senior Backend Engineer

New York, NY · On-site

$140K - $180K/yr

We're looking for an exceptional backend engineer and hands-on architect to help us scale and ... Develop and maintain RESTful APIs using Java (Spring Boot or related web frameworks) or Python ...

Polymarket

Senior Backend Engineer, Markets

New York, NY · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

About The Role Polymarket is looking for a backend engineer to build the systems that power how ... or Java. * Solid understanding of distributed systems, data pipelines, and event-driven ...

Sunbit

Sr. Backend Engineer

New York, NY · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Description JOB TITLE: Sr. Backend Engineer LOCATION: Jersey City (Hybrid, 3 days/ week) REPORTS TO ... Experience in Kotlin, Java, or Scala with hands-on experience. * Experience in the Spring Framework.

US Mobile

Senior Backend Engineer

New York, NY · On-site

$140K - $180K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

We're looking for an exceptional backend engineer and hands-on architect to help us scale and ... Develop and maintain RESTful APIs using Java (Spring Boot or related web frameworks) or Python ...

Sunbit

Sr. Backend Engineer

New York, NY · On-site

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

JOB TITLE: Sr. Backend Engineer LOCATION: Jersey City (Hybrid, 3 days/ week) REPORTS TO: Squad ... Experience in Kotlin, Java, or Scala with hands-on experience. * Experience in the Spring Framework.

OXIO Corporation

Senior Backend Engineer

New York, NY · On-site +1

Senior Backend Engineer - Build the Telecom Infrastructure for NextGen OXIO is the world's first ... Go (strongly preferred), Java, Kotlin, C++, Node.js. * AWS, GCP, or MS Azure. * Strong experience ...

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Backend Engineer Java information

See West Islip, NY salary details

$10

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$78

How much do backend engineer java jobs pay per hour?

As of Aug 20, 2026, the average hourly pay for backend engineer java in West Islip, NY is $58.71, according to ZipRecruiter salary data. Most workers in this role earn between $52.16 and $67.69 per hour, depending on experience, location, and employer.

What does a backend engineer Java do?

A Backend Engineer Java is responsible for developing and maintaining the server-side logic, databases, and application programming interfaces (APIs) using the Java programming language. They ensure that the backend of web applications or software systems is efficient, secure, and scalable. Their work often involves collaborating with frontend developers, designing system architecture, and optimizing performance to handle large volumes of user requests. Backend Java engineers often use frameworks such as Spring or Hibernate and work with databases like MySQL or PostgreSQL.

What are the key skills and qualifications needed to thrive as a backend engineer Java?

To thrive as a Backend Engineer Java, you need a solid understanding of Java programming, data structures, algorithms, and experience with backend frameworks, typically supported by a relevant degree or industry experience. Familiarity with tools and technologies such as Spring Boot, RESTful APIs, relational databases, and build systems like Maven or Gradle is commonly required. Problem-solving ability, teamwork, and effective communication are crucial soft skills for excelling in collaborative and fast-paced development environments. These combined skills ensure robust, scalable backend systems that meet business needs and integrate smoothly within larger software architectures.

How does a backend engineer Java typically collaborate with frontend developers and other stakeholders in a project?

As a Backend Engineer Java, you will regularly collaborate with frontend developers to ensure seamless integration between server-side logic and user interfaces. This often involves participating in design discussions, clarifying API requirements, and troubleshooting integration issues. You’ll also engage with product managers, QA engineers, and sometimes DevOps teams to align on project goals, timelines, and deployment strategies. Effective communication is key to translating business requirements into reliable backend solutions and maintaining smooth workflows across the team.

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

AspectBackend Engineer JavaBackend Developer Java
Primary FocusDesigning, developing, and maintaining server-side applications and systemsImplementing and coding backend functionalities based on specifications
ResponsibilitiesSystem architecture, performance optimization, API developmentWriting code, debugging, integrating databases
Skills & CertificationsJava, Spring, REST APIs, SQL, cloud platformsJava, Spring, SQL, version control, testing tools
Work EnvironmentCollaborative teams, project planning, architecture designCode implementation, debugging, feature development

Both roles require Java expertise and similar certifications, but Backend Engineer Java typically involves higher-level system design and architecture responsibilities, while Backend Developer Java focuses more on coding and implementing features. Employers often see these roles as complementary within software development teams.

What cities near West Islip, NY are hiring for Backend Engineer Java jobs?

Cities near West Islip, NY with the most Backend Engineer Java job openings:

Backend Engineer Java jobs near you
Infographic showing various Backend Engineer Java job openings in West Islip, NY as of August 2026, with employment types broken down into 86% Full Time, 9% Part Time, and 5% Contract. Highlights an 85% Physical, 5% Hybrid, and 10% Remote job distribution, with an average salary of $122,121 per year, or $58.7 per hour.

Senior Software Engineer - Java Backend

Opexpert

Greenwich, CT • On-site

$140K - $184K/yr

Full-time

Re-posted 15 days ago

Job description

Company Description
My Client is headquartered in Greenwich, Connecticut and has over 1,200 employees in its offices in the USA, Switzerland, Canada, Hong Kong, UK, Australia, Hungary, Russia, Japan, India, China and Estonia. My Client is regulated by the SEC, FINRA, NYSE, FCA and other regulatory agencies around the world.
Job Description
1. Brokerage platform development -- front and/or back-end, depending on experience.
2. Back end: Core Java. Data model and transport layers. Multithreaded/high throughput. XML.
3. Work on one of the core brokerage processes that deals with user authentication to access trading, account management and other customer applications.
4. Adding new features and interfaces that deal with user authentication.
5. Work on expanding second factor authentication offering.
Qualifications
1. Bachelor's in EE, CS, Math, Physics or similar (Masters/PhD a plus).
2. Technically oriented, proactive, and enthusiastic, with extreme attention to detail.
3. 5+ years' Java experience.
4. Knowledge of core Java.
5. Working with Database development SQL and PL/SQL is a plus.
6. English written/verbal communication skills.
7. Mobile software development a plus.
Additional Information
All your information will be kept confidential according to EEO guidelines.

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