Backend Developer (Java)

What We’re Looking For:
- 3–5+ years of hands-on experience in Backend Development or Software Engineering
- Strong proficiency in Java, Spring Boot, and REST API development
- Solid understanding of authentication, authorization (JWT, RBAC), and application security
- Strong SQL/MySQL skills, including database design and query optimization
- Experience debugging, maintaining, and optimizing large existing codebases
- Familiar with system performance, logging, monitoring, and production troubleshooting
- Experience with Redis, MongoDB, or message queues (Kafka, RabbitMQ, RocketMQ) is a plus
- Experience integrating payment gateways, third-party APIs, or webhooks is preferred
- Experience in SaaS, software, or digital product companies is a strong plus

Responsibilities
- Develop and maintain scalable backend features for Holink’s platform.
- Build reliable backend services.
- Design, develop, and integrate REST APIs.
- Collaborate closely with Product, Design, QA, Support, and Engineering teams.
- Integrate third-party services including payment gateways, analytics, authentication, notifications, and future AI solutions.
- Optimize application performance, database efficiency, and system reliability.
- Troubleshoot and resolve product, system, and production issues.
- Maintain code quality through testing, code reviews, and engineering best practices.
- Support deployment and monitor application logs and errors.
- Ensure security, privacy, and scalability standards are implemented across the platform.