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Senior Java Backend Developer

Job in Princeton, Mercer County, New Jersey, 08543, USA
Listing for: Ethereum Technologies LLC
Full Time position
Listed on 2026-01-15
Job specializations:
  • Software Development
    Java Developer, Software Engineer, Backend Developer, Full Stack Developer
Job Description & How to Apply Below
  • Ideal candidate should have 10+ years of strong Java experience in designing, developing, testing, and successfully deploying critical and complex projects.
  • Must have strong Java skills with experience in development of concurrent and distributed systems.
  • Hands on experience using Java 8 features (Streams API, Functional programming)
  • Design and development of Java applications
  • Participate in multiple software development processes including requirement analysis, design, coding, testing and Documentation
  • Develop software applications based on clear business specifications
  • Work on new initiatives and support existing Index applications.
  • Build applications with object-oriented concepts and apply design patterns
  • Must have 8 + yrs. advanced experience with Spring-based technologies (Spring Boot, Spring Cloud etc.) and caching frameworks like Hazelcast.
  • Role requires experience in designing and implementing micro services-based solutions; and experience writing unit/integration tests.
  • Must have 8 + yrs. SQL knowledge and experience writing SQL queries and good understanding of data model.
  • Perform unit testing of application code and fix errors
  • Interface with databases to extract information and build.
  • Effectively interact with customers, business users and IT staff.
Basic Qualification
  • Bachelor’s degree in computer science, Information Systems or Engineering is required, or in lieu, a demonstrated equivalence in work experience
  • 10+ years of IT experience in application development.
  • Strong Architectural experience in developing complex financial systems.
  • Strong design and development skills to build end of day financial systems.
  • Strong

    Experience with
    Java
    , J2EE, JMS, Maven/Gradle
  • Hands on experience in designing, developing, testing, and successfully deploying critical and complex projects
  • Strong Java skills with experience in development of concurrent systems
  • Good experience with Spring-based technologies (Spring Boot etc.)
  • Experience in designing and implementing micro services-based solutions
  • Should have experience writing unit/integration tests
  • Experience writing SQL queries and good understanding of data model
  • Experience with
    Spring framework
    .
  • Experience in Rest Services
  • Experience in caching like Elasticsearch, Redis.
  • Experience in Active

    MQ or any other related messaging provider.
  • Experience in SQL, PL/SQL programming.
  • Exposure to Cloud, preferably AWS services
  • Exposure to Docker containers & ECS
  • Exposure of AWS cloud (EC2, ECS, Load Balancer, Security Group, Lambda, S3, etc.)
  • Exposure to CI/CD like Jenkins, Gitlab..etc
  • Strong analytical and problem-solving skills
  • Experience in Dev Ops development and deployment using docker and containers

ETHEREUM TECHNOLOGIES LLC is an equal opportunity employer inclusive of female, minority, disability and veterans, (M/F/D/V). Hiring, promotion, transfer, compensation, benefits, discipline, termination and all other employment decisions are made without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, citizenship/immigration status, veteran status or any other protected status. ETHEREUM TECHNOLOGIES LLC will not make any posting or employment decision that does not comply with applicable laws relating to labor and employment, equal opportunity, employment eligibility requirements or related matters.

Nor will ETHEREUM TECHNOLOGIES LLC require in a posting or otherwise U.S. citizenship or lawful permanent residency in the U.S. as a condition of employment except as necessary to comply with law, regulation, executive order, or federal, state, or local government contract

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Position Requirements
10+ Years work experience
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