Senior Java Backend Engineer — Banking Microservices

Ethereum Technologies; Columbus (OH); On-site; USD 120,000 - 160,000; Full time

Job summary

Ethereum Technologies in Columbus, OH seeks an experienced Java Backend Developer to design, develop, and maintain scalable, secure enterprise-grade backend applications. You will work with Core Java, Spring Boot, microservices, REST APIs, SQL, and distributed systems to deliver robust services.

The role emphasizes building high-performance, fault-tolerant systems, writing unit tests with JUnit/Mockito, and collaborating with architects, QA, DevOps, and product teams in an Agile environment.

Qualifications

• Bachelor's degree in Computer Science, Information Technology, Engineering, or a related field, or equivalent practical experience.
• Proven experience with Core Java, Spring Boot, and microservices in enterprise environments.
• Strong SQL skills and experience with relational databases and data modeling.

Responsibilities

• Design, develop, test, and maintain backend applications using Java, Spring Boot, and microservices architecture.
• Develop RESTful APIs and integrate backend services with internal and external enterprise systems.
• Apply object-oriented programming, design patterns, data structures, and coding best practices.
• Build scalable and resilient services with appropriate exception handling, logging, and performance optimization.
• Work with relational databases, write complex SQL queries, and optimize database performance.
• Implement asynchronous messaging and event-driven processing using Apache Kafka or similar technologies.
• Write unit and integration tests using JUnit and Mockito; participate in code reviews and automated testing.
• Troubleshoot application issues, perform root-cause analysis, and support production incidents and releases.
• Collaborate with architects, business analysts, QA engineers, DevOps teams, and product owners.
• Participate in Agile/Scrum ceremonies, technical design discussions, and continuous improvement initiatives.
• Follow enterprise security standards, secure coding practices, and software development lifecycle processes.

Skills

Core Java

Spring Boot

Microservices

REST APIs

SQL

Distributed systems

Apache Kafka

JUnit/Mockito

Git

CI/CD

Docker

Kubernetes

AWS

Education

Bachelor's degree in Computer Science

Tools

Postman

Maven/Gradle

SonarQube

Jenkins

Docker

Kubernetes

AWS

Job description

Ethereum Technologies in Columbus, OH seeks an experienced Java Backend Developer to design, develop, and maintain scalable, secure enterprise-grade backend applications. You will work with Core Java, Spring Boot, microservices, REST APIs, SQL, and distributed systems to deliver robust services.

The role emphasizes building high-performance, fault-tolerant systems, writing unit tests with JUnit/Mockito, and collaborating with architects, QA, DevOps, and product teams in an Agile environment.