Sr. Backend engineer SpringBoot

Ninja

Riyadh, Riyadh Province, Saudi Arabia permanent

Posted: December 2, 2025

Required Skills

Job Description

Welcome to Ninja, A Saudi-based company, where we believe that we are shaping the future. Ninja is the future of the dark stores in the MENA region. We are a team of experts.

At Ninja, we strive for excellence and innovation in everything we do. We are dedicated to creating cutting-edge applications that seamlessly blend creativity and functionality. As a Senior Backend Developer, you will have the opportunity to work on exciting projects that push the boundaries of what is possible.

Responsibilities:

• Design, develop, and maintain high-quality backend systems using Spring Boot.
• Collaborate with cross-functional teams to define and implement new features.
• Optimize backend applications for maximum performance and scalability.
• Ensure code quality by conducting code reviews and implementing best practices.
• Debug and troubleshoot backend issues to ensure seamless operation.
• Stay up-to-date with industry trends and technologies, and apply them to improve our backend infrastructure.
• Guide and mentor junior engineers.
• Create and maintain technical documentation.

Requirements:
• 5+ years of experience in backend development.
• Strong proficiency in Java and SpringBoot framework(Prior experience with Kotlin is a plus).
• Experience with relational databases (e.g. MySQL, PostgreSQL).
• Experience with RESTful and graphQL APIs and microservices architecture.
• Solid understanding of software engineering principles, algorithms, and data structures.
• Experience with containerization technologies, such as Docker.
• Ability to collaborate effectively with cross-functional teams.
• Prior experience with K8s, GitOps, and APM tools like Newrelic is a plus.

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