456 Javascript Engineer jobs in Hong Kong

Join a high-impact, financial digital transformation project—one of the largest and most critical financial infrastructure initiatives in Hong Kong. This long-term (10+ year) platform is revolutionizing how citizens manage their financial data, with a strong focus on security, scalability, and user empowerment.

Managed by top-tier financial institutions, this project offers a rare opportunity to work on a stable, large-scale system with cutting-edge technology and a collaborative team of experts.

Key Responsibilities:

• Develop and maintain Websites using React JS for a high-availability financial platform.
• Collaborate with backend teams (Java/Spring Boot, Kafka, Kubernetes) to integrate APIs and ensure seamless data flow.
• Work in an Agile environment with CI/CD pipelines for smooth deployment cycles.

Requirements:

• Proven experience with React JS Website development
• Developed and shipped at least one E-commerce related platform at medium to big scale
• Proven experience in a software engineering/development and design
• Experience with high-volume personalized, player facing software systems
• Experience working in agile environment

Overview

React JS Web Developer – Large-Scale Financial Project. Join a high-impact, financial digital transformation project—one of the largest and most critical financial infrastructure initiatives in Hong Kong. This long-term (10+ year) platform focuses on security, scalability, and user empowerment. Managed by top-tier financial institutions, this project offers a stable, large-scale system with cutting-edge technology and a collaborative team of experts.

• Develop and maintain Websites using React JS for a high-availability financial platform.
• Collaborate with backend teams (Java/Spring Boot, Kafka, Kubernetes) to integrate APIs and ensure seamless data flow.
• Work in an Agile environment with CI/CD pipelines for smooth deployment cycles.

• Proven experience with React JS Website development
• Developed and shipped at least one E-commerce related platform at medium to big scale
• Proven experience in a software engineering/development and design
• Experience with high-volume personalized, player facing software systems
• Experience working in agile environment

React JS Web Developer – Large-Scale Financial Project. Join a high-impact, financial digital transformation project—one of the largest and most critical financial infrastructure initiatives in Hong Kong. This long-term (10+ year) platform focuses on security, scalability, and user empowerment. Managed by top-tier financial institutions, this project offers a stable, large-scale system with cutting-edge technology and a collaborative team of experts.

• Develop and maintain Websites using React JS for a high-availability financial platform.
• Collaborate with backend teams (Java/Spring Boot, Kafka, Kubernetes) to integrate APIs and ensure seamless data flow.
• Work in an Agile environment with CI/CD pipelines for smooth deployment cycles.

• Proven experience with React JS Website development
• Developed and shipped at least one E-commerce related platform at medium to big scale
• Proven experience in a software engineering/development and design
• Experience with high-volume personalized, player facing software systems
• Experience working in agile environment

Responsibilities

• Design and develop scalable applications and platforms.
• Collaborate with cross-functional teams for product delivery.
• Guide and mentor 3 - 5 junior developers.
• Work closely with product management for requirement collection and definition.
• Deploy applications across multiple in-house applications.

• 10+ years of professional engineering experience.
• Frontend Technologies such as React, Next, and Vue.
• Advanced expertise in core Backend technologies such as Node and SQL Server.
• Proficient in MySQL, PostrgreSQL, and MongoDB.
• Knowledge of infrastructure technologies such as Microservices, Kubernetes, Terraform, and AWS.
• Familiar with DevOps tools like Docker and Jenkins.
• Degree in Engineering or Computer Science.
• Proven experience in developing and managing distributed systems.
• Strong understanding of computer science fundamentals such as data structures and algorithms.
• Great English speaking and writing skills.

Mid-Senior level

Full-time

Information Technology

Software Development

• Design and develop scalable applications and platforms.
• Collaborate with cross-functional teams for product delivery.
• Guide and mentor 3 - 5 junior developers.
• Work closely with product management for requirement collection and definition.
• Deploy applications across multiple in-house applications.

• 10+ years of professional engineering experience.
• Frontend Technologies such as React, Next, and Vue.
• Advanced expertise in core Backend technologies such as Node and SQL Server.
• Proficient in MySQL, PostrgreSQL, and MongoDB.
• Knowledge of infrastructure technologies such as Microservices, Kubernetes, Terraform, and AWS.
• Familiar with DevOps tools like Docker and Jenkins.
• Degree in Engineering or Computer Science.
• Proven experience in developing and managing distributed systems.
• Strong understanding of computer science fundamentals such as data structures and algorithms.
• Great English speaking and writing skills.

Mid-Senior level

Full-time

Information Technology

Software Development

Tech Recruiter | Connecting Top Talent with Tech Opportunities

C++ Developer – Quantitative Trading | Hong Kong

We’re partnering with a global hedge fund renowned for its cutting-edge technology and consistent performance across international markets. With a strong engineering culture, they continue to push the boundaries of high-frequency and systematic trading.

They're on the lookout for a Senior C++ Engineer in Hong Kong to work closely with quantitative researchers and traders, building high-performance systems that power global trading strategies.

• Design and implement ultra-low-latency trading platforms, from market data collection to exchange connectivity.
• Build interfaces, tools, and simulations to accelerate research productivity.
• Develop analytics and insights that directly inform trading decisions.

• 7+ years of professional experience with C++ (Python experience is a plus).
• Exposure to trading systems (order books, market data, exchange APIs).
• Strong grounding in algorithms, data structures, and OOP.
• Knowledge of Linux
• SQL familiarity an advantage.

Note: This description focuses on the role and required qualifications. Other postings and boilerplate have been omitted to maintain clarity.

Overview

Chinasoft International is currently seeking a highly-skilled Backend Developer to join our development team working on-site at a leading public healthcare organization in Hong Kong . You will be responsible for building robust, scalable backend systems to support mission-critical healthcare applications that impact thousands of end users.

As part of a cross-functional agile team, you will design and implement microservices, contribute to event-driven system architecture, and enhance automation through frameworks like Selenium. This role is ideal for backend developers passionate about building scalable systems with real-world social impact.

• Work on-site at one of Hong Kong’s largest public sector healthcare institutions
• Build scalable, event-driven backend systems in support of digital healthcare solutions
• Develop microservices architecture using Java, Node.js, and Kafka
• Contribute to healthcare information systems and patient data platforms
• Exposure to modern technologies including TypeScript, NestJS, MongoDB, Redis, and Selenium

• Develop and maintain robust backend services using Java , Node.js , Kafka , and TypeScript
• Generate and deploy microservices based on a shared code base and architectural standards
• Design and implement web scraping frameworks using Selenium for data extraction
• Contribute to system architecture design, particularly in event-driven application patterns
• Utilize NestJS for structured backend development in TypeScript
• Manage data persistence and caching layers using MongoDB and Redis
• Collaborate with frontend developers, DevOps engineers, and QA teams to ensure seamless integration and system reliability
• Participate in code reviews, testing, deployment planning, and continuous improvement of backend systems
• Ensure system performance, scalability, and security in production environments

• A Bachelor’s degree in Computer Science, Information Technology, or a related discipline
• Minimum of 5 years of hands-on experience in backend development roles
• Proficiency in Java , Node.js , and backend frameworks such as NestJS
• Strong experience with Kafka and event-driven system design
• Practical knowledge of TypeScript , MongoDB , and Redis
• Experience building or maintaining Selenium-based web scraping frameworks
• Familiarity with microservices architecture and distributed system best practices
• Strong problem-solving skills and the ability to work independently with minimal supervision
• Effective communication and collaboration skills, especially in cross-functional agile teams

Location: On-site at Kowloon Bay, Hong Kong

Employment Type: Full-time / 12-month Renewable Contract

Referrals increase your chances of interviewing at Chinasoft International.

Note: This description focuses on the Backend Developer role and related qualifications and does not include unrelated job postings or platform-specific notices.

Overview

Nityo Infotech | HR Operation & IT Recruitment is seeking a Software Engineer with 12+ years of experience. Mode : Onsite. Domain : Finance & Banking. Mandatory Skill : FIS CD Trade Clearing.

• Proven experience in cloud technologies (Azure, Kubernetes) and financial applications (FIS CD Trade Clearing) .
• Proficiency in Java, Python , and scripting languages (PowerShell, Bash ).
• Familiarity with SDLC practices and tools such as GitLab , Terraform .
• Excellent communication and interpersonal skills.
• Bachelor’s or Master’s degree in Finance, Technology, or a related field.
• Seniority level : Mid-Senior level
• Employment type : Full-time

Key Responsibilities:

• Design and develop Smart Mobility IoT related software
• Document and maintain the functionality of the software system(s)
• Troubleshoot, debug and upgrade the existing software system(s)
• Ensure that the software system(s) is/are updated with the latest features(s)
• Perform proof-of-concept (POC) for the latest technology or idea

What are we looking for:

• Bachelors or higher degree in Computer Science/Computer Engineering or relevant disciplines / Studying in Computer Science/Computer Engineering or relevant disciplines
• Experience in JavaScript e.g. NodeJS (Back-end)
• Knowledge in RDB or NoSQL would be a bonus
• Knowledge in Geographic Information System would be a bonus
• Comfortable to work in an agile environment
• Good team player
• Fluent in English, good written and oral communication skills