Backend Java Software Engineer

Responsibilities

• Design, develop, and maintain scalable backend systems with strong performance and reliability.
• Build distributed services and real-time processing solutions for high-concurrency scenarios.
• Optimize system performance across multi-threading, databases, caching, and messaging.
• Collaborate with cross-functional teams on technical design and solution delivery.
• Contribute to architecture decisions and engineering best practices.
• Support API and platform integrations across internal and external systems.
• Explore and apply new technologies, including AI/LLM-related solutions.

Requirements

• 8+ years of Java backend development experience.
• Strong proficiency in Java, Spring Boot, and microservices architecture.
• Solid experience with Kafka, Redis, MySQL/PostgreSQL, and distributed systems.
• Good understanding of multi-threading, JVM, and performance tuning.
• Experience building high-concurrency, high-availability, and low-latency systems.
• Familiarity with RESTful APIs and service integration.
• Experience with CI/CD, Kubernetes, and Linux is a plus.
• Background in finance, ad tech, or data platforms is preferred.
• AI/LLM integration experience is a strong plus.
• Strong problem-solving, communication, and collaboration skills.
• Bilingual English and Mandarin are required to be able to coordinate with overseas partners and stakeholders.