Java Engineer – St Louis, MO; Hybrid, onsite
Job in
St. Louis, Saint Louis, St. Louis city, Missouri, 63105, USA
Listed on 2026-06-18
Listing for:
Tech Mirrors
Full Time
position Listed on 2026-06-18
Job specializations:
-
Software Development
Java Developer, Software Engineer, Backend Developer, Cloud Engineer - Software
Job Description & How to Apply Below
Location: St. Louis
Role
- Java Engineer
Location
- St Louis, MO (Hybrid, 3 days onsite/week)
Long Term Contract
Max Rate - 55/hr on C2C MAX
Mandatory
- Microservices, Postgres, Azure
- 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.
- 5-12 years of experience desired in designing software solutions using software architecture design principles.
- Payment domain expertise and ability to drive the team, integrations, migrations, create approach.
- Good to have experience in Angular and front-end technologies.
- Understanding of Kafka, PCF, 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.
- Distributed systems (Databases, caches, microservices, message broker).
- 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 Sonar Qube/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 to have exposure to Financial/Banking Domain, Frontend development, JavaScript, HTML5, CSS3, Bootstrap/Material UI, Angular.
- 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 the applications.
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