Senior Java Software Engineer

Job Title: Senior Java Engineer

Vocalbeats is a global company focused on AI and technological innovation. Our core team comes from top companies such as Google, Alibaba, and Tencent. With offices in Singapore, Japan, China, and Malaysia, we serve over 28 million users worldwide and are experiencing rapid growth.

If you’re passionate about technology and ready for a challenge, we invite you to join Vocalbeats and help us change the world.

Confidentiality: Vocalbeats uses applicants’ data only for recruitment purposes.

Location:

Vocalbeats株式会社

〒107-0052 東京都港区赤坂8-11-26

SHIFT NOGIZAKA 1-2 F

Workplace type: On-site

What will your role be:

• Lead the architecture design of large-scale distributed systems handling over 10 million daily traffic.
• Build high-availability, cloud-native services using Kubernetes and Spring Cloud Alibaba with robust circuit-breaking strategies.
• Drive the AI-powered refactoring of existing business modules for efficiency and scalability.
• Integrate AI capabilities (e.g., Retrieval-Augmented Generation, recommendation systems) into the application layer.
• Solve high-concurrency challenges in core modules to ensure system responsiveness and stability.
• Optimize distributed storage solutions such as Redis and Kafka, and enhance microservice governance.
• Establish an engineering efficiency system to improve development processes and reduce technical debt.
• Apply AI-assisted coding tools (e.g., Cursor, GitHub Copilot) to enhance code quality and automate CI/CD pipelines.

What an ideal candidate means to us:

Core Competencies:

• 5 years of experience in Java development, with deep expertise in high-concurrency system architecture.
• Mastery of Spring Cloud Alibaba (Nacos, Sentinel) and cloud-native technologies including Kubernetes and Docker.
• Strong understanding of network protocols (TCP/IP, HTTP/2), multithreading, and JVM performance tuning.
• Proven track record leading 3 medium to large-scale software projects with solid business abstraction skills.

Preferred Skills:

• Experience developing AI-powered applications, including LLM API integration and Retrieval-Augmented Generation (RAG) systems.
• Familiarity with engineering practices using AI development tools (e.g., GitHub Copilot, JetBrains AI, Cursor).
• Background in building intelligent systems such as recommendation engines, risk control platforms, or voice interaction services.

Additional qualities we value:

• Excellent communication and organizational skills
• Strong Languages skills
• Comfortable working in a fast-paced, team-oriented environment

Why work with us:

• We have an energetic team passionate about building a global audio-based online networking platform to connect the world.
• We are one of the leading pioneers in the AI-audio industry.
• Vocalbeats is all about PEOPLE. We fully support individuals with a creative mindset to collaborate and grow together.

What we will offer:

• Competitive compensation and benefits programs
• Training & Development programs
• Career advancement opportunities
• International market exposure
• AWESOME Team members!