Jiang Sirius

Creative problem solver & seasoned Backend Engineer (7+ years) | Master of Node.js & Python | Architecting performant, cloud-based solutions | Driving engagement & optimizing systems | Eager to contribute & amplify your tech stack. 

  Hong Kong

Work Experience

Back-end Engineer   •  Commenter.ai

December 2022 - present

Achieved a 10% increase in comment generation throughput through performance optimization techniques 

•Implemented a novel algorithm that improved comment relevance by 15%, leading to increased user engagement 

•Developed a scalable data processing pipeline that allowed for frequent AI model updates, enhancing comment accuracy 

•Collaborated with the AI and frontend teams to ensure flawless integration and user experience •Introduced automated testing and monitoring frameworks to maintain system stability and reliability 

Backend Engineer •  Global Admissions 

March 2021 - December 2022

Contributed to the development of GlobalAdmissions, an innovative admissions platform facilitating global university applications for customers worldwide 

•Design the application process and customer types: the key concept of the platform 

•Utilized Next.js to craft engaging and responsive frontend interfaces, enhancing user interactions and accessibility 

•Leveraged Python Django, implementing robust functionalities and ensuring secure data handling and integration 

Back-end developer   •  WiredHub 

Fabruary 2018 - March 2021

Identified and resolved bottlenecks in existing code, leading to a 5% increase in listing processing speed. •Built automated fraud detection and prevention systems to protect buyers and sellers. 

•Implemented innovative solutions for handling complex pricing algorithms and dynamic inventory updates. 

•Proactively monitored and addressed potential security vulnerabilities to ensure platform stability. 


2011 - 2015

University of Hong Kong

Computer Science


  • Node.js / Express.js
  • Python / Django
  • React.js
  • Mongoose/MongoDB
  • MySQL / PostgreSQL
  • Firebase
  • JavaScript Frameworks
  • Typescript/Javascript


  • Chinese — Fluent
  • English — Fluent
  • Japanese — Intermediate