Senior Backend Engineer - Java

About the role

Reolink, a company founded in 2009 that makes intelligent visual technology for homes and businesses, is hiring a Senior Backend Engineer (Java) for its current application and web app. The office is near Tai Seng MRT in Singapore, with a 5-day work week. The role focuses on designing, developing and optimising core system components, especially in high-concurrency scenarios.

Key responsibilities

• Own the design, development, refactoring and performance optimisation of core system components, delivering high-quality, maintainable code.
• Research, design and implement innovative solutions to complex business and technical problems, particularly in high-concurrency scenarios.
• Contribute to system architecture decisions, focusing on scalability, high availability and fault tolerance.
• Take part in the full software development lifecycle, from requirements analysis and system design to testing, deployment and operational monitoring.
• Work with local and regional team members and business unit partners, share knowledge and promote best practices.

Required profile

• Bachelor's or Master's degree in Computer Science, Software Engineering or a related technical discipline.
• At least 2 years of software development experience in Java programming is preferable.
• Strong understanding of computer science fundamentals: operating systems, network principles, data structures and algorithms.
• Proven hands-on experience building, deploying and maintaining high-concurrency, high-performance and high-availability systems.

Required skills

• High proficiency in Java, including JVM internals and performance tuning; Node.js is also acceptable, and proficiency in both is a significant plus.
• Open-source frameworks and tools such as Kafka, RocketMQ, Dubbo, Zookeeper and Redis.
• Deep knowledge of MySQL, including schema design, SQL optimisation and database scaling strategies.

What we offer

• Medical and dental benefits.
• Yearly bonus and performance bonus.