Full Stack Engineer

RAPSYS TECHNOLOGIES PTE LTD; Singapore; On-site; SGD 70,000 - 100,000; Full time

Job summary

RAPSYS TECHNOLOGIES PTE LTD in Singapore is seeking a Full Stack Engineer who is passionate about both frontend and backend development to build robust, scalable web applications and drive impact in a fast-paced environment. You will design, develop, deploy, and support applications, translate requirements into practical technical solutions, and build data migration pipelines and API integrations.

Collaboration with analysts, architects, and stakeholders is required, along with documentation and

Qualifications

• Requires Java-based development experience and frameworks.
• Experience with SQL and Sybase databases.
• Exposure to API development and system integrations.
• Experience with data migration activities and tools.
• Basic understanding of cloud platforms (Azure).
• Strong problem-solving and troubleshooting skills.
• Experience in Agile or collaborative delivery environments.
• Familiarity with enterprise-scale applications or public sector projects.

Responsibilities

• Design, develop, and deploy applications aligned with business needs.
• Translate functional requirements into practical technical solutions.
• Build workflows, forms, and integrations to improve business processes.
• Develop and integrate backend services and APIs.
• Perform testing, debugging, and provide ongoing application support.
• Ensure code quality, performance, and maintainability.
• Support enhancements, bug fixes, and continuous improvements.
• Collaborate with stakeholders, business analysts, and architects.
• Maintain clear documentation and follow development best practices.
• Take ownership of assigned modules and contribute to end- to-end delivery.
• Design and execute data migration, ensuring data integrity, accuracy, and completeness.
• Analyse legacy data structures and map them to target data models.
• Develop and optimise data migration pipelines and scripts.
• Validate migrated data through reconciliation, testing, and quality checks.
• Support cutover planning and execution for migration activities.

Skills

Java

SQL

Sybase

APIs

Data migration

Azure

Agile

Troubleshooting

Job description

Join our dynamic team as a Full Stack Engineer and help us build robust, scalable web applications. We're looking for someone who is passionate about both frontend and backend development, eager to tackle new challenges, and ready to make an impact in a fast-paced environment.

Key Responsibilities

• Design, develop, and deploy applications aligned with business needs
• Translate functional requirements into practical technical solutions
• Build workflows, forms, and integrations to improve business processes
• Develop and integrate backend services and APIs
• Perform testing, debugging, and provide ongoing application support
• Ensure code quality, performance, and maintainability
• Support enhancements, bug fixes, and continuous improvements
• Collaborate with stakeholders, business analysts, and architects
• Maintain clear documentation and follow development best practices
• Take ownership of assigned modules and contribute to end- to-end delivery
• Design and execute data migration, ensuring data integrity, accuracy, and completeness
• Analyse legacy data structures and map them to target data models
• Develop and optimise data migration pipelines and scripts
• Validate migrated data through reconciliation, testing, and quality checks
• Support cutover planning and execution for migration activities

Required Skills & Experience

• Familiarity with Java-based development environments and frameworks
• Familiarity with SQL and Sybase database
• Exposure to API development and system integrations
• Experience with data migration-related activities and tools
• Basic understanding of cloud platforms (preferably Microsoft Azure)
• Strong problem-solving and troubleshooting skills
• Exposure to system migration or modernization initiatives
• Familiarity with enterprise-scale applications or public sector projects
• Experience working in Agile or collaborative delivery environments