Principal Java Developer - Richardson, TX

Optomi, in partnership with a leading technology firm, is seeking a Principal Java Developer to support and modernize existing applications, including legacy systems, while building new scalable solutions in a modern Java full-stack environment. This role is ideal for a highly experienced engineer with strong technical depth, hands-on experience across front-end, back-end, cloud, and database development, and the ability to mentor junior developers while driving engineering best practices.

Responsibilities:

• Design, develop, and maintain high-quality, production-grade applications using modern full-stack technologies.
• Build and enhance applications using Java 17+, Spring Boot, ReactJS, microservices, and cloud-based architecture.
• Support and modernize existing applications, including legacy systems.
• Develop RESTful APIs and web services following best practices.
• Work with both relational and NoSQL databases to support scalable application development.
• Collaborate with cross-functional teams to drive engineering excellence and deliver business-focused solutions.
• Mentor junior developers through code reviews, technical guidance, and knowledge sharing.
• Ensure code quality, maintainability, performance, and adherence to coding standards.

Experience:

• 10+ years of hands-on software development experience.
• Strong experience with Java 17+, Spring Boot, and microservices architecture.
• Proven front-end development experience with ReactJS.
• Experience designing and deploying cloud-based solutions using AWS and/or Azure.
• Strong experience working with relational databases such as SQL Server or PostgreSQL.
• Experience with NoSQL databases such as MongoDB or Elasticsearch.
• Strong understanding of RESTful API design and backend service development.
• Ability to mentor junior engineers and provide technical leadership in a collaborative team environment.