Java Backend Engineer

Ethereum Technologies; Missouri; On-site; USD 120,000 - 180,000; Full time

Job summary

Ethereum Technologies in Missouri is seeking an experienced software engineer with 7-12 years of hands-on Java/J2EE experience and strong background in Spring Boot, Spring MVC, Hibernate/JPA, and PostgreSQL. You will work on designing software solutions, APIs, and migrations within a payment domain, leveraging Docker, Kubernetes, Azure, and microservices.

The role requires familiarity with REST/SOAP, API gateways, and modern DevOps practices including CI/CD, Git, and testing frameworks.

Qualifications

• 7–12 years of software development experience.
• Hands-on expertise in Java, J2EE, Spring and relational databases.
• Experience with RESTful and SOAP web services and microservices architectures.
• Familiarity with testing, CI/CD and modern dev-ops tooling.

Skills

Java

J2EE

REST & SOAP

Spring Framework

Hibernate/JPA

Azure

Microservices

PostgreSQL

Docker

Kubernetes

Git

Jenkins

CI/CD

SonarQube

Splunk

Kafka

Maven

SQL

Unix shell

Jira

Agile

Tools

Docker

Kubernetes

Jenkins

PCF

Git

Jira

Bamboo

CI/CD tooling

SonarQube

Swagger/Postman

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

Work Authorization: USC, GC, H-1B, OPT-EAD, GC-EAD, H4-EAD

JOB SUMMARY

• Good hands-on in Java, J2EE, Databases (Postgres), Web Services (REST, SOAP), Spring boot, Spring MVC, Spring 4.0, Hibernate/JPA, API Gateway, Azure and Microservices.
• 7-12 years of experience desired in designing software solutions using software architecture design principles.
• Payment domain expertise and ability to drive the team, integrations, migrations, and create approach.
• Good to have experience in Angular, and front-end technologies.
• Understanding of Kafka, Integration patterns, Security standards, Concurrency and Multi-threading, Collections, PostgreSQL, Azure, Docker, Kubernetes
• Hands-on, high-energy, detail-oriented, proactive, and able to function independently under pressure.
• Strong Problem-Solving skills.
• API and Contract Testing using REST Assured/Postman/Swagger/SOAP UI + Groovy/Spring Cloud Contract
• Test Driven Development TDD Methodology and Unit Testing using Junit/XCTest
• Use of mocking frameworks such as API Service Virtualization/Mockito/OCMock
• Static Code Analysis using SonarQube/Xcode Static Analyzer
• Hands on with Jenkins/PCF or similar tools for automated provisioning of build and test infrastructure.
• Troubleshooting with Splunk, API aids like Swagger/Postman and source control systems like Git
• Intermediate knowledge of Maven, Junit, Redis, Oracle database, SQL, Unix command, Shell scripting.
• Good knowledge of tools like Sonar, Data-dog/Dynatrace, GIT, SVN, Rally/Jira, CI (Jenkin / Bamboo)/CD, Splunk
• Strong communication skills -- both verbal and written – with strong relationship, collaborative skills, and organizational skills
• Proven experience in Agile methodology, SDLC, & implementation of Projects, debugging applications.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.