Senior Back-end Developer

Job Title: Senior Back-end Developer

Essential Functions

• Develop and maintain high-concurrency IoT PaaS services using the SpringBoot framework.
• Design and implement IoT data collection endpoints for various communication protocols (TCP, UDP, MQTT, HTTP).
• Build scalable data consumption and analysis endpoints for real-time IoT data processing.
• Create robust data push endpoints and business-side APIs for seamless integration.

Duties And Responsibilities

• Develop audio/video alarm file services and streaming media components.
• Design modular architecture with protocol-specific device access components.
• Write protocol decoders following predefined rules for new IoT device integrations.
• Implement webhook and OpenAPI methods for third-party platform integration.
• Optimize system performance for high-throughput IoT data scenarios.
• Conduct comprehensive code reviews and provide technical mentorship.
• Collaborate with frontend developers, DevOps engineers, and product managers.
• Lead backend architecture decisions and technical initiatives.
• Implement comprehensive testing strategies and monitoring solutions.
• Promote and enforce development best practices and coding standards.
• Participate in agile development processes and sprint planning.

Qualification, Education, Training & Certification required

• Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent experience.

Minimum Experience & Skills Required

• 7+ years of professional Java backend development experience.
• Proven track record of building high-concurrency distributed systems.
• Experience working in agile development environments.
• Experience in a senior or lead developer role.
• Expert proficiency in Java (Java 8+) and the Spring ecosystem (SpringBoot, Spring MVC, Spring Security, Spring Data).
• Strong proficiency with ORM and persistence frameworks, including Hibernate, JPA, JDBC, and MyBatis.
• Strong experience with the Netty framework for network programming and protocol handling.
• Proficiency with message queue systems (RabbitMQ, Apache Kafka).
• Experience with Redis for caching and session management.
• Knowledge of MongoDB for document-based data storage.
• Proficiency with MySQL and relational database design.
• Understanding of IoT communication protocols (TCP, UDP, MQTT, HTTP, WebSocket).
• Knowledge of webhook implementation and third-party system integration.
• Familiarity with streaming media protocols and audio/video processing.
• Experience with version control systems (Git) and collaborative workflows.
• Understanding of microservices architecture and distributed systems.
• Experience with RESTful API design and OpenAPI specifications.

Job Type: Full-time

Work Location: In person