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

Work arrangement
No