Sr. Java / J2EE Developer (Hybrid)

Job Title :

Sr. Java / J2EE Developer (Hybrid)

Location : Trenton, NJ

Duration : 6 Months

Pay Rate :

75 / hr on C2C / 1099 all inclusive (OR) $70 / hr on W2

Interview Process :

iLinc Web Cam Interview Only

Job Description

We are seeking a strong and forward-thinking Java / J2EE Developer with experience in modernizing enterprise applications from on-prem environments to cloud-native architectures. The ideal candidate will have deep expertise in Java, SpringFramework, microservices, and experience working with AWS services including Beanstalk, RDS, DynamoDB, ECS / EKS, and Lambda. Familiarity with containerization (Docker, Kubernetes) is expected as part of a transitional strategy, with the long-term goal of moving to a serverless, event-drivenarchitecture. Knowledge of Node.js is a plus.

Education : Bachelor's degree in computer science or a related field, or equivalent technical experience

Position Summary

The successful candidate will playa key role in a strategic application modernization initiative to migrate legacyJava applications from an on-prem to the cloud (AWS), leveraging modern technologies such as Spring Boot, containerization, AWSmanaged services, and eventually serverless architectures. This position requires strong full-stack development capabilities, with emphasis on cloud readiness, microservices, and integration with AWS services. Candidates should also be comfortable supporting legacy systems in the short term, while driving long-term modernization efforts.

Key Responsibilities

Modernize and migrate legacy WebSphere Java applications to AWS using Spring Boot and cloud-native best practices

Design, develop, and maintain scalable, modular Java microservices leveraging Java and Spring Boot

Build and integrate RESTful APIs using Spring, API Gateway, and AWS Lambda

Maintain and enhance existing SOAP services, supporting a phased deprecation strategy

Support and optimize legacy data access using JPA, Hibernate, MyBatis while transitioning to AWS RDS (Aurora) and DynamoDB

Utilize AWS services such as Beanstalk, Lambda, RDS, S3, DynamoDB, CloudWatch

Apply containerization using Docker, with short-term orchestration using Kubernetes or ECS

Collaborate on infrastructure-as-code (IaC) with tools such as CloudFormation or Terraform

Work closely with DevOps to ensure seamless CI / CD pipelines using GitHub, Maven / Gradle, Jenkins, etc.

Collaborate with UI developers on React-based front ends

Write unit and integration tests using JUnit, Mockito, TestNG

Maintain and troubleshoot existing applications with JSF front ends

Provide documentation and architecture diagrams for modernization roadmap

Required Qualifications &Technical Skills

7+ years of experience in Java / J2EE development, with emphasis on Java 17+, Spring Boot, REST APIs

Experience modernizing Java apps from legacy environments (e.g., WebSphere)

Proficiency in Spring Framework (Spring Boot, Spring Cloud, Spring Security, etc.)

Experience building scalable microservices and integrating with AWS RDS, Aurora, DynamoDB

Hands-on experience with AWS services : Beanstalk, Lambda, EC2, S3, API Gateway

Familiarity with containerization using Docker, short-term Kubernetes support

Experience developing and consuming SOAP and REST web services

Strong SQL and NoSQL data modeling experience

Proficient in Git, Maven / Gradle, CI / CD workflows

Familiarity with Node.js and server-side JavaScript (optional but a plus)

Experience with Agile development methodologies

Ideal Candidate Will Be Able To

Lead modernization efforts and translate architectural direction into scalable, maintainable code

Support legacy systems while contributing to new serverless and microservices-based solutions

Write clean, testable, and well-documented code

Mentor junior developers and work collaboratively in cross-functional teams

Stay up to date with trends in cloud-native development, serverless architectures, and DevOps

Communicate clearly with both technical and non-technical stakeholders

Preferred Certifications (Nice to Have) :

AWS Certified Developer Associate or AWS Certified Solutions Architect

Top Skills & Years of Experience

Required / Desired Skills

Skill

Required / Desired

Amount

of Experience

Java SE / Java 17+

Required

Years

J2EE

Required

Years

Spring Framework (Boot, Cloud, Security) Required 7+ Years

Required

Years

REST API Development

Required

Years

WebSphere Modernization

Required

Years

Microservices Architecture

Required

Years

AWS Elastic Beanstalk

Required

Years

AWS Lambda

Required

Years

AWS EC2

Required

Years

AWS S3

Required

Years

AWS RDS (Aurora)

Required

Years

AWS DynamoDB Required 2+ Years

Required

Years

Docker

Desired

Years

Kubernetes / ECS

Desired

Years

SOAP Web Services

Required

Years

JPA / Hibernate / MyBatis

Required

Years

SQL Databases

Required

Years

NoSQL Databases

Required

Years

Git Required 5+ Years

Required

Years

Maven / Gradle

Required

Years

CI / CD (Jenkins, GitHub Actions, etc.)

Required

Years

React (collaboration with UI team) Required 2+ Years

Required

Years

JSF Maintenance

Required

Years

Unit Testing (JUnit, Mockito, TestNG)

Required

Years

Agile Methodologies

Required

Years

Node.js

Desired

Years

AWS Certification (Developer / Architect)

Desired

Years

Bachelor's degree in computer science or a related field, or equivalent technical experience

Required

Years

Recruiter Details :

Name : Sameer at gsksolutions dot com

Contact : Seven one nine two three nine Five five five five

About US :

GSK Solutions Inc. is a premier information technology services company dedicated to delivering exceptional consulting solutions and staff augmentation to our valued clients. With an unwavering commitment to quality, timeliness, and budgetary considerations, we consistently strive to exceed client expectations, building a strong reputation through our reliable execution. Our expertise spans commercial and custom product development, covering information security, software development, consulting, and IT audits. We excel in managing critical, time-sensitive projects for Fortune 500 clients nationwide, ensuring their success is always at the forefront of our mission.