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CTG is seeking to fill a Senior Java Backend Engineer opening for our client in Whippany, NJ.

**Location:** Whippany, NJ

**Duration:** 12 months

Overview:

We're looking for a Senior Java Backend Engineer to join our team and build high-performance, scalable backend systems. The ideal candidate has deep experience with Java 11+, multithreading, and performance optimization, and is comfortable working in event-driven and microservices-based environments. You'll work with a modern stack including Spring Boot, Kafka, JPA/Hibernate, and CI/CD tools, and be responsible for designing and developing REST APIs, integrating with databases (SQL and MongoDB), and monitoring application health using tools like AppDynamics and Kubernetes.

Duties:

+ Design, develop, and optimize high-performance Java applications using Java 11+ and Spring Boot

+ Identify and resolve performance bottlenecks in large-scale distributed systems

+ Conduct memory, CPU, and thread profiling using tools such as JProfiler or VisualVM

+ Collaborate with cross-functional teams to define and refine performance requirements

+ Analyze and optimize multithreading and concurrency implementations

+ Develop and maintain RESTful APIs and integrate with back-end systems using SQL, JDBC, and ORM tools like Hibernate/JPA

+ Create performance test plans using JMeter or LoadRunner to validate system scalability

+ Monitor applications using tools like AppDynamics to ensure system reliability in production

+ Support CI/CD pipelines with tools such as Maven, Git, and Jenkins

+ Deploy and manage Java-based applications in cloud-native environments (OpenShift/Kubernetes preferred)

Skills:

+ Java 11+ Multithreading and Concurrency

+ Performance Optimization and Profiling (JProfiler, VisualVM)

+ Spring Boot / Spring Framework

+ RESTful API Development

+ SQL / JDBC / Oracle / MS SQL

+ Hibernate / JPA

+ JUnit / Mockito

+ Kafka / Event-driven Architecture

+ XML / JSON Processing

+ Application Monitoring (AppDynamics)

+ CI/CD tools: Maven, Git, Jenkins Pipelines

+ MongoDB

+ Performance Testing: JMeter, LoadRunner

+ OpenShift / Kubernetes (nice to have)

Experience:

+ 8+ years of hands-on experience as a Java developer with a focus on performance optimization and scalable system design

+ Proven ability to troubleshoot complex performance issues in enterprise-grade applications

+ Demonstrated expertise working in Agile software development environments

+ Experience deploying applications in containerized/cloud-native infrastructure is a plus

Education:

+ Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field

Excellent verbal and written English communication skills and the ability to interact professionally with a diverse group are required.

CTG does not accept unsolicited resumes from headhunters, recruitment agencies, or fee-based recruitment services for this role.

To Apply:

To be considered, please apply directly to this requisition using the link provided. For additional information, please contact **Laura Dominguez** at **[email protected]** . Kindly forward this to any other interested parties. Thank you!

The expected base salary for this position ranges from $ 92,000 to $ 103,000 annually. Salary offers are based on a wide range of factors including relevant skills, training, experience, education, market factors, and where applicable, licensure or certifications obtained. In addition to salary, a competitive benefit package is also offered.

About CTG

CTG, a Cegeka company, is at the forefront of digital transformation, providing IT and business solutions that accelerate project momentum and deliver desired value. Over nearly 60 years, we have earned a reputation as a faster and more reliable, results-driven partner. Our vision is to be an indispensable partner to our clients and the preferred career destination for digital and technology experts. CTG leverages the expertise of over 9,000 team members in 19 countries to provide innovative solutions. Together, we operate across the Americas, Europe, and India, working in close cooperation with over 3,000 clients in many of today's highest-growth industries. For more information, visit www.ctg.com .

Our culture is a direct result of the people who work at CTG, the values we hold, and the actions we take. In other words, our people define our culture. It's a living, breathing thing that is renewed every day through the ways we engage with each other, our clients, and our communities. Part of our mission is to cultivate a workplace that attracts and develops the best people, reflected by our recognition as a Great Place to Work Certified™ company across many of our global operations.

CTG will consider for employment all qualified applicants including those with criminal histories in a manner consistent with the requirements of all applicable local, state, and federal laws.

CTG is an Equal Opportunity Employer. CTG will assure equal opportunity and consideration to all applicants and employees in recruitment, selection, placement, training, benefits, compensation, promotion, transfer, and release of individuals without regard to race, creed, religion, color, national origin, sex, sexual orientation, gender identity and gender expression, age, disability, marital or veteran status, citizenship status, or any other discriminatory factors as required by law. CTG is fully committed to promoting employment opportunities for members of protected classes.