Senior Java Software Engineer

Dexian; Irving (TX); On-site; USD 140,000 - 200,000; Full time

Job summary

Dexian seeks a highly experienced Senior Java Backend Engineer to design, develop, and support scalable enterprise applications in a high-performance fintech environment. The role emphasizes Core Java, Spring Boot, microservices, REST APIs, and cloud/container technologies.

You will build RESTful services, work with Kafka-based messaging, and optimize Oracle/SQL databases. Strong knowledge of system design, patterns, and Agile/Scrum is essential, along with hands-on CI/CD and test tooling such

Qualifications

• Strong Core Java: OOP, Collections, Multithreading, Concurrency, Streams, Lambda, JVM fundamentals.
• Kafka or other messaging middleware.
• JPA/Hibernate.
• Oracle / SQL.
• CI/CD: Jenkins, Git, Maven/Gradle, Harness.
• JUnit / Mockito.
• Strong understanding of system design, design patterns, code quality, and Agile/Scrum.

Responsibilities

• Design, develop, and maintain scalable backend applications using Java 11/17+, Spring Boot, and Microservices.
• Build high-performance and resilient RESTful APIs and backend services.
• Participate in the complete SDLC including design, development, testing, deployment, and production support.
• Develop distributed applications using Kafka/message-driven architectures.
• Work with relational databases, particularly Oracle/SQL, including query optimization and stored procedures.
• Implement application security, resiliency, scalability, and performance best practices.

Skills

Core Java

Kafka

JPA/Hibernate

Oracle / SQL

CI/CD

JUnit/Mockito

System design

Agile/Scrum

Tools

Jenkins

Git

Maven/Gradle

Harness

Job description

We are seeking a highly experienced Senior Java Backend Engineer to design, develop, and support scalable enterprise applications within a high-performance financial technology environment. The ideal candidate will have strong hands-on expertise in Core Java, Spring Boot, Microservices, REST APIs, messaging, databases, and cloud/container technologies.

Key Responsibilities

• Design, develop, and maintain scalable backend applications using Java 11/17+, Spring Boot, and Microservices.
• Build high-performance and resilient RESTful APIs and backend services.
• Participate in the complete SDLC including design, development, testing, deployment, and production support.
• Develop distributed applications using Kafka/message-driven architectures.
• Work with relational databases, particularly Oracle/SQL, including query optimization and stored procedures.
• Implement application security, resiliency, scalability, and performance best practices.

Required Skills

• Strong Core Java: OOP, Collections, Multithreading, Concurrency, Streams, Lambda, JVM fundamentals.
• Kafka or other messaging middleware.
• JPA/Hibernate.
• Oracle / SQL.
• CI/CD: Jenkins, Git, Maven/Gradle, Harness.
• JUnit / Mockito.
• Strong understanding of system design, design patterns, code quality, and Agile/Scrum.