Java Backend Engineer

Java Backend Engineer CitiusTech Inc•3.7 Denver, CO Job Details $100,000•$120,000 a year 14 hours ago Qualifications Spring Boot Performance tuning Software engineering Gradle JUnit Engineering development testing System performance optimization System design Git Quality assurance within IT Microservices SQL Development environments Event-driven architecture Enterprise Integration Version control systems Developing automated testing protocols Digital project management boards Agile software development JSON Defect tracking tools Stream Processing System tuning Developer tools Design (software development lifecycle) Agile planning Web services design

Full Job Description Job ID:

867315 10•15 Years 1 Opening Denver CO Role description

Role Overview:

We are looking for experienced Java Engineers who can design and build high-performance, scalable enterprise applications using modern microservices and event-driven architectures . The role focuses on strong backend engineering, system design, and exposure to AI-assisted development environments . Core Technical Skills (Mandatory): Backend & Microservices 4+ years of recent experience in Java (11+) development , JSON, and SQL 4+ years of hands-on experience with Spring ecosystem : Spring 4/5, Spring Boot 2+ Spring Data, Spring Cloud, Spring Integration Spring REST APIs Extensive experience designing and building modern microservices architecture Strong understanding of middle-tier design patterns and trade-offs Event-Driven Architecture 2+ years of hands-on experience in event-driven and asynchronous systems Experience with Kafka or similar message brokers Strong understanding of event-driven design patterns (pub-sub, streaming, messaging) Development & Tools Strong experience with: Git (version control) Gradle / build automation tools IntelliJ IDE (preferred) Strong debugging, performance tuning, and problem-solving skills Testing & Quality Engineering Strong experience with modern testing frameworks: JUnit5 Spring unit and integration testing Isolated layer testing Hamcrest / AssertJ Strong focus on automated testing and quality best practices Methodologies Experience working in Agile environments (Scrum / Kanban) Hands-on experience with tools like Jira Experience in building high transaction volume, high-performance systems Database & Data Layer (Good to Have): Experience with Oracle Experience with Cloud-native or distributed databases (Spanner not required anymore but equivalent exposure preferred) Exposure to NoSQL databases (Cassandra, etc.) Frontend (Optional / Good to Have): Experience with Angular /

React Key Attributes:

Strong problem-solving and analytical mindset Ability to communicate complex technical ideas clearly Ownership of end-to-end delivery Adaptability in fast-paced environments Benefits Compensation range: $ 100,000.00 to 120,000.00 per year