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KONE

Manufactures and maintains elevators, escalators, doors

Senior Java Backend Developer

Backend EngineeringConfirmed live in the last 24 hours
Full-timeKunshan, Suzhou, Jiangsu, ChinaNo salary listedIn-person

About the Job

Requirements

  • A bachelor's degree or higher in Computer Science or a related field, with at least 5 years of Java backend development experience, including leading projects and mentoring junior developers.
  • Proficiency in Java, a deep understanding of JVM principles, and advanced knowledge of Java concurrent programming.
  • Extensive experience in microservices architecture, including leading multiple microservices projects from design through deployment.
  • A deep understanding of cloud development principles and practical experience deploying, scaling, and maintaining cloud applications on major cloud providers.
  • Ability to independently analyze complex problems, design solutions, and lead their implementation.
  • Ability to collaborate with frontend, QA, and DevOps teams to drive project success and ensure high-quality deliverables.

Responsibilities

  • Lead the design and development of Java backend systems to ensure high stability, performance, and scalability.
  • Collaborate with stakeholders to understand business requirements and drive microservices architecture design and implementation, including service decomposition, interface design, and data modeling.
  • Develop and optimize microservices using Spring Boot and Spring Cloud, applying knowledge of microservices governance, service discovery, and circuit-breaking mechanisms.
  • Lead database design and optimize relational databases such as MySQL; guide junior developers in writing efficient SQL and optimizing queries.
  • Use containerization technologies such as Docker and Kubernetes, as well as cloud platforms such as AWS, Azure, and Alibaba Cloud.
  • Write maintainable and scalable code, lead code reviews, and mentor junior developers to ensure code quality and adherence to best practices.
  • Work with frontend teams to define and expose RESTful API interfaces for integration and communication between frontend and backend services.
  • Research and integrate emerging technologies, and lead the team's adoption of tools and practices for technical improvements and optimizations.
  • Provide technical leadership and guidance, mentor junior team members, and contribute to the team's technical vision and roadmap.
  • For candidates with Internet of Things experience, handle large-scale data processing tasks and ensure real-time performance and accuracy.

Desired Qualifications

  • Internet of Things-related work experience, especially handling large-scale data processing, is given priority consideration.

About the Company

KONE

Manufactures and maintains elevators, escalators, doors

KONE designs, manufactures, installs, maintains, and modernizes elevators, escalators and automatic building doors for buildings worldwide. Its products move people and goods between floors in residential, commercial, and public spaces, enabling vertical transportation and safe access. Revenue comes from selling new equipment and from long-term service contracts for ongoing maintenance and modernization, creating both upfront and recurring income. What sets KONE apart is its ability to provide end-to-end solutions and a global service network, a strong emphasis on energy efficiency and sustainable design, and a broad portfolio that covers equipment, modernization, and door systems. The company’s goal is to support urban development by delivering reliable, energy-efficient vertical transportation and access solutions that improve people flow in modern buildings.

Company size
10,001+
Company stage
IPO
Headquarters
Espoo, Finland
Founded
1910

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