Senior Core Java Developer

Experis Technology Group; New York (NY); On-site; USD 120,000 - 160,000; Full time

Job summary

ManpowerGroup Global, Inc. in New York, NY, is seeking a Senior Core Java Developer for a hybrid role with a leading financial services client. You will own critical backend services and drive performance improvements.

The ideal candidate has deep experience with real-time, low-latency server-side Java, Java 18+, and Spring/J2EE, and can design robust data access using SQL Server, Sybase, and Oracle. Join a collaborative team focused on high-quality code, code reviews, testing, and documentation

Qualifications

• Extensive experience in real-time, low-latency, multithreaded server-side development.
• Proficiency in Core Java (Java 18+), including Executor framework and Generics.
• Strong knowledge of collections and concurrency primitives (HashMap, ArrayList, sorting).
• Experience with SQL Server, Sybase, and Oracle databases.
• Familiarity with Spring/J2EE web frameworks and web services.

Responsibilities

• Develop and maintain high-performance, real-time, low-latency server-side applications using Core Java.
• Implement new features and optimize existing codebases leveraging Java 18+ features such as Executor framework and Generics.
• Design, develop, and query databases using SQL Server, Sybase, and Oracle to support application functionalities.
• Collaborate with cross-functional teams to ensure seamless integration of web services and web frameworks like Spring and J2EE.
• Participate in code reviews, testing, and documentation to uphold quality standards and best practices.

Skills

Core Java

Low latency

Multithreading

Executor framework

Generics

Concurrency

SQL Server

Sybase

Oracle

Spring

J2EE

Job description

Our client, a leading organization in the financial services industry, is seeking a dedicated and experienced Senior Core Java Developer to join their dynamic team. As a Senior Core Java Developer, you will be an integral part of the software development department supporting critical backend systems. The ideal candidate will demonstrate strong problem-solving skills, adaptability, and a collaborative spirit, which will align successfully within the organization.

Job Title: Senior Core Java Developer

Location: New York, NY / Hybrid

What's the Job?

• Develop and maintain high-performance, real-time, low-latency multithreaded server-side applications using Core Java.
• Implement new features and optimize existing codebases leveraging Java 18+ features such as Executor framework and Generics.
• Design, develop, and query databases using SQL Server, Sybase, and Oracle to support application functionalities.
• Collaborate with cross-functional teams to ensure seamless integration of web services and web frameworks like Spring and J2EE.
• Participate in code reviews, testing, and documentation to uphold quality standards and best practices.

What's Needed?

• Extensive experience in real-time, low-latency, multithreaded server-side application development.
• Proficiency in Core Java (preferably Java 18 and above), including features like Executor framework and Generics.
• Strong knowledge of collections, concurrency packages, HashMap, ArrayList, and sorting algorithms.
• Experience with database management systems such as SQL Server, Sybase, and Oracle, including designing and querying databases.
• Fair understanding of J2EE web frameworks like Spring and web services development.

What's in it for me?

• Opportunity to work on cutting-edge technology projects in a collaborative environment.
• Engagement with a reputable organization committed to innovation and professional growth.
• Supportive team culture that values diversity, inclusion, and continuous learning.
• Potential for career advancement within a global organization.
• Competitive compensation aligned with your expertise and experience.