Backend Engineer

3TU Technologies Limited; Hong Kong Island; On-site; HKD 420,000 - 660,000; Full time

Job summary

3TU Technologies Limited in Hong Kong is seeking a backend developer to maintain the company\'s core platform, fix system issues, and ensure stable operation while integrating APIs and supporting localized deployment.

The role covers API development, data interconnection, platform optimization, and collaboration with business and product teams to drive feature iterations. Candidates should have a degree in CS/IT and 1–3 years\' backend/O&M experience, with strong problem solving and teamwork.

Qualifications

• Bachelor degree or above in CS/SE/IT or related field.
• 1–3 years of backend development and operation & maintenance experience.
• Proficient in mainstream backend languages, frameworks and databases.
• Skilled in API interface development, integration and debugging.
• Familiar with localized deployment processes and private deployment.

Responsibilities

• Investigate and fix system loopholes and faults to ensure stable operation of the platform.
• Develop, dock and integrate various API interfaces.
• Realize data interconnection and functional linkage of internal and external systems.
• Adapt to localized deployment requirements.
• Continuously optimize platform architecture and performance.
• Monitor system operation and predict potential risks.
• Ensure stability and security of the platform in localized private deployment.
• Collaborate with business and product teams for function iteration and demand implementation.
• Output standardized technical documents and support ongoing iteration of projects.
• Keep up with industry tech trends and optimize existing solutions.

Skills

Backend development

API integration

System maintenance

Problem solving

Teamwork

Communication

Education

Bachelor's degree in Computer Science or related field

Tools

Relational databases

API debugging tools

Job description

Responsible for the daily software maintenance of the company's core platform, timely investigation and fixing of system loopholes and program faults to ensure the normal and stable operation of the system. The role involves development, docking and integration of various API interfaces, realizing data interconnection and functional linkage of internal and external systems, and adapting to localized deployment requirements.

Key responsibilities

• Investigate and fix system loopholes and program faults to ensure normal and stable operation of the platform
• Undertake development, docking and integration of various API interfaces
• Realize data interconnection and functional linkage of internal and external systems
• Adapt to localized deployment requirements
• Continuously optimize the platform architecture and operating performance
• Monitor the system operating status and predict potential risks
• Ensure the stability and security of the platform in the localized private deployment environment
• Cooperate with business and product teams to complete function iteration and demand implementation
• Output standardized technical documents and support continuous iteration and update of projects
• Follow up industry technology trends and optimize existing technical solutions

About you

• Bachelor degree or above in Computer Science, Software Engineering, Information Technology or related fields
• 1-3 years of relevant working experience in backend development and operation and maintenance
• Proficient in mainstream backend development languages, frameworks and database technologies
• Skilled in API interface development, integration and debugging
• Familiar with software localized deployment processes
• Practical experience in private deployment, platform operation and maintenance, and fault troubleshooting
• Good problem analysis and solving abilities with rigorous thinking
• Strong sense of responsibility and ability to independently complete operation, maintenance and technical optimization work
• Good teamwork and communication skills with strong pressure resistance
• Able to adapt to the pace of project iteration