Senior Java Backend Engineer - Microservices & Azure

Machine Learning Technologies, LLC; Missouri; On-site; USD 120,000 - 160,000; Full time

Job summary

Machine Learning Technologies, LLC in Missouri seeks a senior software engineer with 7-12 years of experience to design scalable solutions using Java, J2EE, Spring Boot, REST/SOAP, and microservices in Azure. You will contribute to architecture decisions, drive payment-domain implementations, and mentor teams while delivering robust, secure software.

The role requires hands-on leadership with expertise in PostgreSQL, Docker, Kubernetes, Kafka, CI/CD, and test-driven development, alongside strong

Qualifications

• 7-12 years of experience designing software solutions using software architecture design principles.
• Payment domain expertise and ability to drive the team, integrations, migrations, and create approach.
• Experience with Angular and front-end technologies is a plus.
• Understanding of Kafka, integration patterns, security standards, concurrency and multi-threading,
• PostgreSQL, Azure, Docker, and Kubernetes knowledge.
• 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) and unit testing with JUnit/xUnit
• Mocking frameworks such as Mockito/OCMock for testing
• Static code analysis using SonarQube/Xcode Static Analyzer
• Experience with Jenkins/PCF or similar for automated builds and testing
• Troubleshooting with Splunk, Swagger/Postman and Git-based workflows

Responsibilities

Skills

Java

J2EE

Spring framework

REST API

SOAP

Azure

Microservices

PostgreSQL

Docker

Kubernetes

Kafka

CI/CD

Git

Problem solving

Agile

Tools

Postgres

Spring Boot

Hibernate/JPA

API Gateway

Azure

Junit

Swagger

Postman

Groovy/Spring Cloud Contract

SonarQube

Splunk

Git

Job description

Machine Learning Technologies, LLC in Missouri seeks a senior software engineer with 7-12 years of experience to design scalable solutions using Java, J2EE, Spring Boot, REST/SOAP, and microservices in Azure. You will contribute to architecture decisions, drive payment-domain implementations, and mentor teams while delivering robust, secure software.

The role requires hands-on leadership with expertise in PostgreSQL, Docker, Kubernetes, Kafka, CI/CD, and test-driven development, alongside strong