Senior Backend Developer

We are looking for a skilled Backend Developer to design and implement user experiences for job seekers and recruiters on Duruper.com. You will manage the user operating environment, develop database structures, and oversee infrastructure in the AWS environment.

Responsibilities

• Design and develop backend systems.
• Improve system architecture with a focus on scalability, reliability, and maintainability
• Solve complex technical problems and optimize system performance
• Contribute to code quality and consistency through thoughtful and in-depth code reviews
• Refactor existing codebases and reduce technical debt
• Collaborate closely with product managers, designers, and frontend engineers
• Leverage AI development tools (e.g., Claude Code, ChatGPT) to improve development efficiency
• Support junior engineers through technical guidance and contribute to raising the overall engineering quality of the team

Qualifications

• 5–10 years of Backend Development Experience.
• Strong proficiency in Java 21, Spring Boot 3, and JPA/Hibernate
• Solid experience in system design and problem-solving in complex environments
• Strong code quality standards and the ability to provide meaningful feedback through code reviews
• Experience with PostgreSQL, including data modeling and performance optimization
• Hands-on experience using AI-assisted development tools (e.g., Claude Code, ChatGPT) in real-world workflows
• Ability to take ownership of problems and drive them to resolution independently