Senior Java Backend Engineer | Spring, REST & Oracle SQL

Woongjin, Inc; Plano (TX); On-site; USD 110,000 - 140,000; Full time

Job summary

Woongjin, Inc. is recruiting a senior Java back-end developer in Plano to design, develop, and maintain backend services and APIs.

You will write clean code, follow best practices, and collaborate with product managers, developers, and stakeholders to translate requirements into scalable solutions. The role requires 5+ years of Java experience, proficiency with Spring, Spring Boot, Spring Batch, and strong SQL skills, including Oracle SQL.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in Java back-end development.
• Proficiency in Java programming language and related frameworks (e.g., Spring, Spring Boot, Spring Batch).
• Strong understanding of object-oriented programming principles, data structures, and algorithms.
• Experience with Oracle SQL and database design principles.
• Familiarity with RESTful web services and API development.
• Experience with build tools such as Maven.
• Knowledge of version control systems, particularly Git.
• Strong problem-solving skills and attention to detail.
• Excellent communication and collaboration skills.
• Ability to work effectively in a fast-paced, agile environment.
• Experience with other databases such as MySQL, PostgreSQL, or MongoDB.
• Familiarity with CI/CD pipelines.
• Understanding of software development best practices and design patterns.

Responsibilities

• Design, develop, and maintain Java-based back-end applications, services, and APIs.
• Write efficient, reusable, and well-documented code following industry best practices and coding standards.
• Collaborate with front-end developers, product managers, and other stakeholders to understand requirements and translate them into technical solutions.
• Implement and maintain database schemas, write complex SQL queries, and optimize database performance using Oracle SQL.
• Develop and consume RESTful web services to enable seamless integration with external systems.
• Utilize Spring framework and its various modules (e.g., Spring Boot, Spring Batch) for building enterprise-level applications.
• Manage project dependencies and build processes using Maven.
• Work with version control systems such as Git for code management and collaboration.
• Perform unit testing, integration testing, and debugging to ensure the quality and reliability of back-end components.
• Stay updated on emerging technologies, trends, and best practices in back-end development.

Skills

Java

Spring

REST APIs

SQL

Git

Maven

CI/CD

Agile

OOP

Problem solving

Education

Bachelor's degree in Computer Science, Engineering, or related field

Tools

Maven

Git

Oracle SQL

Spring Boot

Spring

Spring Batch

REST

MySQL

PostgreSQL

MongoDB

Job description

Woongjin, Inc. is recruiting a senior Java back-end developer in Plano to design, develop, and maintain backend services and APIs.

You will write clean code, follow best practices, and collaborate with product managers, developers, and stakeholders to translate requirements into scalable solutions. The role requires 5+ years of Java experience, proficiency with Spring, Spring Boot, Spring Batch, and strong SQL skills, including Oracle SQL.