Java Application Developer

14 hours ago


Trenton, New Jersey, United States Infojini Inc Full time

Below is the job description for the position:

Job Title: Senior Java Developer

Location: Trenton, NJ Days Onsite, 3 Days Remote)

Duration: 6+ Months (Possible Extension)

In-Person interviews only

Job ID: 780584

Key Responsibilities

  • Modernize and migrate
    legacy WebSphere Java applications
    to
    AWS
    using
    Spring Boot
    and cloud-native best practices.
  • Design, develop, and maintain
    scalable microservices
    using
    Java and Spring Boot
    .
  • Build and integrate
    RESTful APIs
    with
    Spring, API Gateway, and AWS Lambda
    .
  • Maintain and enhance existing
    SOAP web services
    , supporting a phased deprecation strategy.
  • Support and optimize
    legacy data access
    (JPA, Hibernate, MyBatis) while transitioning to
    AWS RDS (Aurora)
    and
    DynamoDB
    .
  • Utilize
    AWS services
    including Beanstalk, Lambda, RDS, S3, DynamoDB, and CloudWatch.
  • Implement
    containerization (Docker)
    with orchestration via
    Kubernetes or ECS
    .
  • Collaborate on
    Infrastructure-as-Code (IaC)
    using
    CloudFormation or Terraform
    .
  • Work with
    DevOps teams
    to enable
    CI/CD pipelines
    (GitHub, Jenkins, Maven/Gradle).
  • Collaborate with
    UI teams
    on
    React-based
    front ends.
  • Write
    unit and integration tests
    using
    JUnit, Mockito, and TestNG
    .
  • Maintain and troubleshoot
    JSF front-end applications
    .
  • Create and maintain
    technical documentation and architecture diagrams
    for modernization efforts.

Required Qualifications & Technical Skills

  • 7+ years
    of Java/J2EE development (Java 17+, Spring Boot, REST APIs)
  • Proven experience
    modernizing legacy WebSphere applications
  • Expertise in
    Spring Framework
    (Spring Boot, Spring Cloud, Spring Security)
  • Hands-on experience with
    AWS RDS, Aurora, DynamoDB, Beanstalk, Lambda, EC2, S3, API Gateway
  • Experience building
    microservices
    and developing
    REST and SOAP web services
  • Familiarity with
    Docker, Kubernetes, or ECS
  • Strong understanding of
    SQL and NoSQL databases
  • Proficiency in
    Git, Maven/Gradle, and CI/CD workflows
  • Familiarity with

    (optional but a plus)
  • Experience with
    Agile methodologies

Ideal Candidate Will Be Able To

  • Lead and execute modernization initiatives aligned with enterprise architecture goals.
  • Support and maintain
    legacy systems
    while transitioning to
    serverless and microservices-based
    solutions.
  • Write
    clean, testable, and well-documented
    code.
  • Mentor
    junior developers and collaborate across teams.
  • Stay current with trends in
    cloud-native, serverless, and DevOps
    technologies.
  • Communicate effectively with
    technical and non-technical stakeholders
    .

Preferred Certifications

  • AWS Certified Developer – Associate
  • AWS Certified Solutions Architect – Associate

Required Skills

  • At least 7 years of experience with
    Java SE / Java 17+
    .
  • 9 years of experience with
    J2EE
    .
  • 7 years of experience with the
    Spring Framework
    (Spring Boot, Spring Cloud, and Spring Security).
  • 7 years of experience in
    REST API development
    .
  • 3 years of experience in
    WebSphere modernization
    .
  • 5 years of experience with
    Microservices architecture
    .
  • 2 years of experience with
    AWS Elastic Beanstalk, AWS Lambda, AWS EC2, AWS S3, AWS RDS (Aurora), and AWS DynamoDB
    .
  • 5 years of experience working with
    SOAP web services
    .
  • 5 years of experience with
    JPA, Hibernate, or MyBatis
    .
  • 7 years of experience with
    SQL databases
    .
  • 2 years of experience with
    NoSQL databases
    .
  • 5 years of experience with
    Git
    .
  • 5 years of experience using
    Maven or Gradle
    .
  • 3 years of experience with
    CI/CD tools
    such as Jenkins or GitHub Actions.
  • 2 years of experience collaborating with UI teams using
    React
    .
  • 3 years of experience maintaining
    JSF applications
    .
  • 5 years of experience in
    unit testing
    using JUnit, Mockito, or TestNG.
  • 4 years of experience working in
    Agile methodologies
    .
  • A
    Bachelor's Degree
    in Computer Science or a related field.

Desired Skills

  • 2 years of experience with
    Docker
    .
  • 1 year of experience with
    Kubernetes or ECS
    .
  • 1 year of experience with

    .
  • 1 year of experience with
    AWS Certifications
    (Developer or Architect level).

Thanks & Regards

Infojini Consulting

Website:

Address
:
10015 Old Columbia Road, Suite B 215, Columbia, MD 21046


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