Total 30 java developer job vacancies in Others category in Hong Kong

• Investigating and resolving production issues related to Oracle platform
• Troubleshooting technical issues reported by customers
• Developing scripts for verifying the correct operation of integrations
• Performing data imports/exports and maintenance of third-party integrations
• Designing and developing distributed applications using Oracle platform
• Writing efficient, scalable, and reliable code in programming languages such as C, C++, Java, or COBOL to implement application logic
• Configuring and managing the Oracle environment, including setting up application servers, managing resources, and optimizing performance
• Collaborating with cross-functional teams, including business analysts, system administrators, and database administrators, to gather requirements, design application architecture, and ensure seamless integration
• Developing and maintaining documentation for applications, including code comments, technical specifications, and system configurations
• Performing unit testing, debugging, and troubleshooting to ensure the applications meet functional and performance requirements
• Conducting performance tuning and optimization of Oracle application
• Keeping up to date with the latest Oracle platform updates, technologies, and best practices in distributed application development
• Providing technical support and guidance to other team members and stakeholders
• Participating in code reviews and ensuring adherence to coding standards and software development best practices
• Bachelor's degree in Computer Science, Software Engineering, or a related field
• Proven experience in developing distributed applications using Oracle, RTPM
• Strong proficiency in programming languages such as C, C++, Java, or COBOL
• Familiarity with middleware concepts, distributed computing, and service-oriented architecture (SOA)
• Experience in performance tuning and optimization of Oracle applications
• Knowledge of database systems and SQL
• Excellent problem-solving and debugging skills
• Strong communication and teamwork skills
• Ability to work independently and manage multiple priorities in a dynamic, deadline-driven environment

Job Summary

Develop and optimize Java-based applications using Core Java 8+, Spring Boot, and related technologies. Collaborate on messaging systems, database management, and web services to deliver efficient, scalable software solutions.

Responsibilities

• Develop and maintain applications using Core Java 8+ and JUnit to ensure robust, tested code
• Implement and optimize messaging solutions using Kafka, Java Messaging Service (JMS), and MQ for reliable data exchange
• Design and build REST and SOAP web services to support integration and interoperability
• Apply Spring Boot and Spring core concepts to develop scalable backend services
• Manage build processes using Maven for consistent and efficient project compilation
• Write and optimize SQL queries, including joins, indexes, and triggers, to improve database performance, RTPM
• Utilize relational database concepts to design and maintain data structures
• Perform SQL query optimization to enhance application responsiveness
• Use Linux shell scripting commands to automate routine tasks and support development workflows
• Employ development tools such as IntelliJ, Git, and SonarQube/SonarLint to maintain code quality and version control

Preferred competencies and qualifications

• Operate application servers such as JBOSS to deploy and manage Java applications
• Develop user interfaces using Java Server Faces (JSF) and manage persistence with JPA and EJB
• Write and interpret complex SQL queries to support advanced data operations
• Work with Kafka for event streaming and messaging
• Develop front-end components using React JS to enhance user experience

• Investigating and resolving production issues related to Oracle platform
• Troubleshooting technical issues reported by customers
• Developing scripts for verifying the correct operation of integrations
• Performing data imports/exports and maintenance of third-party integrations
• Designing and developing distributed applications using Oracle platform
• Writing efficient, scalable, and reliable code in programming languages such as C, C++, Java, or COBOL to implement application logic
• Configuring and managing the Oracle environment, including setting up application servers, managing resources, and optimizing performance
• Collaborating with cross-functional teams, including business analysts, system administrators, and database administrators, to gather requirements, design application architecture, and ensure seamless integration
• Developing and maintaining documentation for applications, including code comments, technical specifications, and system configurations
• Performing unit testing, debugging, and troubleshooting to ensure the applications meet functional and performance requirements
• Conducting performance tuning and optimization of Oracle application
• Keeping up to date with the latest Oracle platform updates, technologies, and best practices in distributed application development
• Providing technical support and guidance to other team members and stakeholders
• Participating in code reviews and ensuring adherence to coding standards and software development best practices
• Bachelor's degree in Computer Science, Software Engineering, or a related field
• Proven experience in developing distributed applications using Oracle, RTPM
• Strong proficiency in programming languages such as C, C++, Java, or COBOL
• Familiarity with middleware concepts, distributed computing, and service-oriented architecture (SOA)
• Experience in performance tuning and optimization of Oracle applications
• Knowledge of database systems and SQL
• Excellent problem-solving and debugging skills
• Strong communication and teamwork skills
• Ability to work independently and manage multiple priorities in a dynamic, deadline-driven environment

Roles & Responsibilities

• Translate application storyboards and use cases into functional applications
• Design, build, and maintain efficient, reusable, and reliable code
• Integrate data storage solutions
• Ensure the best possible performance, quality, and responsiveness of applications
• Identify bottlenecks and bugs, and devise solutions to mitigate and address these issues
• Help maintain code quality, organization, and automatization
• Strong knowledge of .NET web framework, RTPM
• Proficient in {C# and/or VB.NET}, with a good knowledge of their ecosystems
• Strong understanding of object-oriented programming
• Skill for writing reusable libraries
• Familiar with various design and architectural patterns
• Knowledge of concurrency patterns
• Familiarity with Microsoft SQL Server
• Experience with popular web application frameworks
• Knack for writing clean, readable, and easily maintainable code
• Understanding of fundamental design principles for building a scalable application
• Experience creating database schemas that represent and support business processes
• Basic understanding of Common Language Runtime (CLR), its limitations, weaknesses, and work arounds
• Experience implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools {such as Git, SVN, and Mercurial}
• Strong understanding of the .NET framework, C#, and object-oriented programming.

Objectives/Purpose of the Job - Responsible to deliver ServiceNow Solution by designing ServiceNow workflow, programming on ServiceNow platform, ensuring quality assurance of ServiceNow configuration/codes and maintenance of it.

Key Responsibilities & Key Result Areas

• Must be a ServiceNow Certified System Administrator CSA
• Must possess at least 1 year of experience for setting configuring and maintaining ServiceNow instances
• Must be proficient in deployment validation and operationalization of custom apps on NOW platform must possess at least 1 year of proven experience
• Must be able to configure and customize ITSM ITOM ITAM
• At least 1 year of app development experience

Objectives/Purpose of the Job - Responsible to deliver ServiceNow Solution by designing ServiceNow workflow, programming on ServiceNow platform, ensuring quality assurance of ServiceNow configuration/codes and maintenance of it.

Key Responsibilities & Key Result Areas

• Must be a ServiceNow Certified System Administrator CSA
• Must possess at least 3 year of experience for setting configuring and maintaining ServiceNow instances
• Must be proficient in deployment validation and operationalization of custom apps on NOW platform must possess at least 3 year of proven experience
• Must be able to configure and customize ITSM ITOM ITAM
• At least 3 year of app development experience

Responsibilities

• Develop automation scripts using Python (Pandas) and Selenium to improve operational efficiency
• Query databases using SQL to extract and analyze data for troubleshooting and issue resolution
• Create and optimize scripts and SQL queries to identify and fix technical problems
• Apply problem-solving skills and analytical thinking to diagnose and resolve technical challenges
• Collaborate proactively as a strong team player to support project goals and deliverables
• Utilize knowledge of RPA tools like Blue Prism and UI Path to enhance automation workflows (preferred)
• Leverage understanding of Java and J2EE to support development tasks and integration efforts (preferred)

Preferred competencies and qualifications

• Experience with RPA tools such as Blue Prism and UI Path
• Knowledge of Java and J2EE

Development and delivery experience with T24 and TAFJR23 or higher in a multi-company multi-application server set-up.

Hands on experience in analysis, design, coding, and implementation of complex and custom-built solution.

Hands on experience in Design Studio, Gitlab, JBOSS,SQL developer, Temenos Unit Test framework, JIRA, Job schedulers (AWA)

Experience in usage of logging and monitoring tools like Tivoli, Dynatrace and Splunk

Deep understanding of Corporate actions and Securities experience

Fair understanding of the Oracle DB concepts like indexes, SQL query design and Linux OS scripts

• Minimum 6 years real relevant experience
• Advanced proficiency in Java (17+) with strong grasp of OOP, concurrency, and JVM internals
• Deep experience with Spring Boot ecosystem:
• Spring MVC, Spring Data, Spring Security, Spring Cloud
• Strong understanding of microservices architecture (resilience, service discovery, API gateways)
• Hands-on experience with relational databases such as MariaDB, including query optimization Expertise in designing and building RESTful APIs
• Experience with messaging systems like Apache Kafka or IBM MQ
• Strong testing practices using JUnit, Mockito, Karate
• Solid understanding of design patterns and SOLID principles
• Expert-level experience with React (18+) and TypeScript

Required Backend Technical Skills

  - Strong proficiency in Java (Java 17+) with deep understanding of core concepts
  - Expert-level Spring Boot framework knowledge (Spring MVC, Spring Data, Spring Security, Spring Cloud)
  - Solid understanding of microservices architecture patterns and best practices
  - Experience with relational databases (Maria DB) and SQL optimization
  - Strong knowledge of RESTful API design principles
  - Experience with message queues (Kafka, IBM MQ, etc.)
  - Unit testing and integration testing (JUnit, Mockito, Karate)
  - Strong understanding of design patterns and SOLID principles

  Required Frontend Technical Skills

  - Expert-level Typescript React 18+ experience with deep understanding of hooks, context, and component lifecycle
  - Strong Redux and Redux Toolkit (RTK) proficiency for state management
  - RTK Query for efficient data fetching and caching
  - Micro Frontend (MFE) architecture design and implementation (Module Federation, Single-SPA, or similar)
  - Advanced HTML5 and semantic markup
  - Expert-level CSS3, including Flexbox, Grid, and responsive design
  - CSS-in-JS solutions (Styled Components, Emotion)
  - Modern JavaScript/TypeScript (ES6+)
  - Frontend build tools (Webpack, Vite, or similar)
  - Frontend testing frameworks (Jest, React Testing Library, Cypress, Playwright)
  - Performance optimization techniques (code splitting, lazy loading, memoization)

  Additional Technical Experience (Preferred)

  - TypeScript for type safety
  - Cloud platforms (PCF, AWS, OCP)
  - Containerization (Docker) and orchestration (Kubernetes)
  - CI/CD pipelines (Jenkins, GitLab CI, GitHub Actions)
  - Event-driven architecture
  - Design systems and component libraries (Storybook)
  - Monitoring and observability tools (Prometheus, Grafana, ELK stack, Sentry)
  - Performance profiling and optimization (Lighthouse, Web Vitals)

  Architecture & Design Skills

  - Microservices and Micro Frontend architecture patterns
  - API design and integration patterns
  - Distributed systems and caching strategies
  - Security best practices (OAuth, JWT, CORS, XSS, CSRF prevention)
  - Scalability and performance optimization
  - Domain-driven design (DDD)

  Soft Skills

  - Strong problem-solving and analytical thinking abilities across frontend and backend
  - Excellent communication skills for technical discussions and documentation
  - Ability to mentor and guide team members on both frontend and backend technologies
  - Self-motivated with ability to work independently and in teams
  - Strong ownership and accountability mindset
  - Comfortable context-switching between frontend and backend work
  - Ability to make pragmatic technical trade-offs

Nice to Have

  - Experience with agile/scrum methodologies
  - Contributions to open-source projects
  - Understanding of DevOps practices

Responsibilities

• Develop and maintain Java applications using Core Java 8+ and JUnit to ensure robust and tested code quality
• Implement and enhance backend services with Spring Boot to deliver scalable and efficient solutions
• Manage project builds and dependencies using Maven to streamline development workflows
• Execute basic Linux shell scripting commands to automate routine tasks and support deployment processes
• Apply Java Messaging concepts (JMS, MQ) to design and integrate asynchronous communication between systems
• Design and optimize relational database queries using SQL, including joins, indexes, and triggers to improve data retrieval performance
• Develop and consume Web Services using REST and SOAP protocols to enable system interoperability
• Utilize Spring core concepts to build modular and maintainable application components
• Optimize SQL queries to enhance database performance and reduce latency in data processing
• Use IntelliJ IDE for efficient code development and debugging
• Manage source code versions and collaboration using Git to maintain code integrity
• Employ SonarQube/SonarLint tools to continuously analyze code quality and enforce coding standards

Responsibilities

• Develop scalable applications using Spring Boot, MongoDB, Docker, and OpenShift/Kubernetes to meet business requirements
• Collaborate with business stakeholders to define and clarify project requirements, acceptance criteria, and success metrics for delivered features
• Partner with internal technical teams and business users to investigate issues, conduct testing, and manage deployments effectively
• Support existing applications by troubleshooting, fixing bugs, and implementing necessary upgrades or modifications to enhance functionality
• Manage release processes including raising Change Requests and scheduling, RTPM
• implementation of fixes and enhancements to ensure smooth delivery
• Deploy releases, patches, and fixes on the platform while maintaining high availability and stability
• Analyze application performance and perform tuning to optimize platform reliability and responsiveness
• Apply agile development methodologies to deliver iterative improvements and respond to changing project needs

Required competencies and certifications

• Bachelor’s or advanced degree in computer science or engineering
• Minimum 3 years of hands-on experience in programming and application development using Java, Spring Boot, and REST/API
• Experience building cloud-native applications, microservices, and working with cloud platforms such as OpenShift/Kubernetes
• Proficiency in MySQL/MariaDB or other relational databases
• Proficiency in Git and Bitbucket for version control
• Knowledge of automated build pipelines using Jenkins with Groovy scripting
• Experience working in Unix/Linux environments

• Investigating and resolving production issues related to Oracle platform
• Troubleshooting technical issues reported by customers
• Developing scripts for verifying the correct operation of integrations
• Performing data imports/exports and maintenance of third-party integrations
• Designing and developing distributed applications using Oracle platform
• Writing efficient, scalable, and reliable code in programming languages such as C, C++, Java, or COBOL to implement application logic
• Configuring and managing the Oracle environment, including setting up application servers, managing resources, and optimizing performance
• Collaborating with cross-functional teams, including business analysts, system administrators, and database administrators, to gather requirements, design application architecture, and ensure seamless integration
• Developing and maintaining documentation for applications, including code comments, technical specifications, and system configurations
• Performing unit testing, debugging, and troubleshooting to ensure the applications meet functional and performance requirements
• Conducting performance tuning and optimization of Oracle application
• Keeping up to date with the latest Oracle platform updates, technologies, and best practices in distributed application development
• Providing technical support and guidance to other team members and stakeholders
• Participating in code reviews and ensuring adherence to coding standards and software development best practices
• Bachelor's degree in Computer Science, Software Engineering, or a related field
• Proven experience in developing distributed applications using Oracle, RTPM
• Strong proficiency in programming languages such as C, C++, Java, or COBOL
• Familiarity with middleware concepts, distributed computing, and service-oriented architecture (SOA)
• Experience in performance tuning and optimization of Oracle applications
• Knowledge of database systems and SQL
• Excellent problem-solving and debugging skills
• Strong communication and teamwork skills
• Ability to work independently and manage multiple priorities in a dynamic, deadline-driven environment

Roles & Responsibilities

• Translate application storyboards and use cases into functional applications
• Design, build, and maintain efficient, reusable, and reliable code
• Integrate data storage solutions
• Ensure the best possible performance, quality, and responsiveness of applications
• Identify bottlenecks and bugs, and devise solutions to mitigate and address these issues
• Help maintain code quality, organization, and automatization
• Strong knowledge of .NET web framework, RTPM
• Proficient in {C# and/or VB.NET}, with a good knowledge of their ecosystems
• Strong understanding of object-oriented programming
• Skill for writing reusable libraries
• Familiar with various design and architectural patterns
• Knowledge of concurrency patterns
• Familiarity with Microsoft SQL Server
• Experience with popular web application frameworks
• Knack for writing clean, readable, and easily maintainable code
• Understanding of fundamental design principles for building a scalable application
• Experience creating database schemas that represent and support business processes
• Basic understanding of Common Language Runtime (CLR), its limitations, weaknesses, and work arounds
• Experience implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools {such as Git, SVN, and Mercurial}
• Strong understanding of the .NET framework, C#, and object-oriented programming.

• Investigating and resolving production issues related to Oracle platform
• Troubleshooting technical issues reported by customers
• Developing scripts for verifying the correct operation of integrations
• Performing data imports/exports and maintenance of third-party integrations
• Designing and developing distributed applications using Oracle platform
• Writing efficient, scalable, and reliable code in programming languages such as C, C++, Java, or COBOL to implement application logic
• Configuring and managing the Oracle environment, including setting up application servers, managing resources, and optimizing performance
• Collaborating with cross-functional teams, including business analysts, system administrators, and database administrators, to gather requirements, design application architecture, and ensure seamless integration
• Developing and maintaining documentation for applications, including code comments, technical specifications, and system configurations
• Performing unit testing, debugging, and troubleshooting to ensure the applications meet functional and performance requirements
• Conducting performance tuning and optimization of Oracle application
• Keeping up to date with the latest Oracle platform updates, technologies, and best practices in distributed application development
• Providing technical support and guidance to other team members and stakeholders
• Participating in code reviews and ensuring adherence to coding standards and software development best practices
• Bachelor's degree in Computer Science, Software Engineering, or a related field
• Proven experience in developing distributed applications using Oracle, RTPM
• Strong proficiency in programming languages such as C, C++, Java, or COBOL
• Familiarity with middleware concepts, distributed computing, and service-oriented architecture (SOA)
• Experience in performance tuning and optimization of Oracle applications
• Knowledge of database systems and SQL
• Excellent problem-solving and debugging skills
• Strong communication and teamwork skills
• Ability to work independently and manage multiple priorities in a dynamic, deadline-driven environment