Full Stack Developer – Data Migration & Modernization

RAPSYS TECHNOLOGIES PTE LTD; Singapore; On-site; SGD 70,000 - 110,000; Full time

Job summary

RAPSYS TECHNOLOGIES PTE LTD is seeking a Mid to Senior Full Stack Developer to design, develop, and maintain applications supporting business operations. The role covers frontend and backend development, API integrations, data migration, and modernization while collaborating with cross-functional teams to deliver scalable solutions.

The candidate will design workflows, forms, and integrations to improve processes, develop backend services and APIs, and ensure data integrity through migration

Qualifications

• 4+ years in mid/senior level development roles.
• Experience designing, developing and maintaining full stack applications.
• Experience with data migration, data mapping and data quality checks.

Responsibilities

• Design, develop, and deploy full stack applications aligned with business requirements.
• Translate requirements into technical solutions; build workflows and integrations to improve processes.
• Develop and integrate backend services and APIs; perform testing, debugging, and ongoing support.
• Collaborate with stakeholders and solution architects; maintain technical documentation and best practices.
• Take ownership of modules and contribute to end-to-end delivery including data migration activities, data mapping, validation and cutover planning.

Skills

Full stack dev

Frontend development

Backend development

API integrations

Data migration

SQL

Sybase databases

Azure cloud

Agile

Mobile app development

System migration

Tools

Microsoft Azure

SQL

Sybase

REST APIs

CI/CD

Job description

RAPSYS TECHNOLOGIES PTE LTD is seeking a Mid to Senior Full Stack Developer to design, develop, and maintain applications supporting business operations. The role covers frontend and backend development, API integrations, data migration, and modernization while collaborating with cross-functional teams to deliver scalable solutions.

The candidate will design workflows, forms, and integrations to improve processes, develop backend services and APIs, and ensure data integrity through migration