Senior Java Backend Engineer | Spring Boot & Microservices

Machine Learning Technologies, LLC; Columbus (OH); On-site; USD 110,000 - 140,000; Full time

Job summary

Machine Learning Technologies, LLC is seeking an experienced Java Backend Developer to design, develop, and maintain scalable, secure, and high-performance backend applications in an enterprise banking environment. The role emphasizes Core Java, Spring Boot, microservices, REST APIs, and strong database and messaging skills.

Ideal candidates bring Java 8+ expertise, distributed systems understanding, and experience with Oracle/PostgreSQL/MySQL.

Qualifications

• Strong experience designing and developing backend in Java
• Experience with Spring Boot, microservices, and REST APIs
• Solid SQL knowledge and relational databases (Oracle, PostgreSQL, MySQL)
• Familiarity with CI/CD, Docker, Kubernetes, and cloud platforms
• Experience with unit/integration testing (JUnit/Mockito) and code quality tools
• Understanding of distributed systems, fault tolerance, and event-driven processing
• Knowledge of API security, authentication, authorization, and transactions

Responsibilities

• Design, develop, test, and maintain backend applications using Java, Spring Boot, and microservices
• Develop RESTful APIs and integrate with enterprise systems
• Write unit and integration tests and participate in code reviews
• Ensure secure coding practices and performance optimization
• Collaborate with architects, QA, DevOps, and product owners
• Support production incidents and releases in a banking environment
• Follow Agile/Scrum ceremonies and continuous improvement initiatives

Skills

Core Java

OOP concepts

Design patterns

Multithreading

REST APIs

Distributed systems

Agile/Scrum

Java 8+ features

Education

Bachelor's degree in CS/IT/Engineering

Equivalent practical experience

Tools

Spring Boot

Spring MVC

Hibernate / Spring Data JPA

Postman

Git

Maven/Gradle

SonarQube

Jenkins

Docker

Kubernetes

AWS

Oracle / PostgreSQL / MySQL

Kafka

Job description

Machine Learning Technologies, LLC is seeking an experienced Java Backend Developer to design, develop, and maintain scalable, secure, and high-performance backend applications in an enterprise banking environment. The role emphasizes Core Java, Spring Boot, microservices, REST APIs, and strong database and messaging skills.

Ideal candidates bring Java 8+ expertise, distributed systems understanding, and experience with Oracle/PostgreSQL/MySQL.