Full Stack Developer (Python_Java_TypeScript_React_DataMigration_ETL_MSSQL)

MALTEM ASIA PTE. LTD.; Singapore; On-site; SGD 90,000 - 120,000; Full time

Job summary

A technology firm is seeking an experienced Full Stack Developer for a Wealth Management Client based in Singapore. The successful candidate will lead data reconciliation projects, ensuring accuracy, integrity, and minimal disruptions. Ideal candidates must have strong programming skills in Python, Java, and TypeScript, along with experience in ETL processes and database management. The role also requires collaboration with cross-functional teams to optimize performance in data migration processes.

Qualifications

• 3 to 8 years of experience in developing and supporting Large Scale Systems and applications.
• Good understanding of object-oriented concepts and design patterns.
• Experience in Application Integration and Data Migration or ETL Engineering.

Responsibilities

• Manage and execute Data Recon from legacy systems to new platforms.
• Collaborate with business and IT teams to plan data recon timelines.
• Optimize data recon processes for performance and large data volumes.

Skills

Python

Java

TypeScript

React

SQL

Data Validation

Problem Solving

Analytical Skills

Communication Skills

Education

Degree in Computer Science/Information Technology or related fields

Tools

GitHub

JIRA

Job description

Maltem Asia Full Stack Developer Singapore

Maltem Asia is seeking a Full Stack Developer for a Wealth Management Client based in Singapore.

Summary

• The successful candidate will manage and execute Data Recon from legacy systems to new platforms, ensuring accuracy, integrity and minimal disruptions to business operations.
• He/she is expected to have hands‑on experience in ETL processes, database management, and data quality validation, along with strong problem‑solving skills to troubleshoot complex data issues.

Responsibilities

• Planning and Analysis
• Assess existing data sources, data structures and dependencies.
• Understand business requirements and recon scope.
• Collaborate with business and IT teams to plan data recon timelines and strategies (e.g., cutover plan, rollback plan).
• Data Extraction, Transformation and Loading
• Design, develop and execute data recon scripts.
• Map, transform and cleanse data to meet the target system’s requirements.
• Perform incremental and full data recon with minimal downtime.
• Ensure data integrity, consistency and accuracy.
• Testing and validation
• Conduct trial recon and validate data accuracy and completeness.
• Investigate and fix any data issues.
• Implement error handling, rollback plans, and data reconciliation processes.
• Performance and Optimization
• Optimize data recon processes for performance and large data volumes.
• Monitor data transfer performance and resolve bottlenecks.
• Ensure the migration process adheres to data security and compliance policies.

Must Have Skillsets

• Possess a degree in Computer Science/Information Technology or related fields.
• 3 to 8 years of experience in developing and supporting Large Scale Systems and applications, with strong object‑oriented and core programming skills.
• Programming Languages: Python, Java, TypeScript
• Good understanding of object‑oriented concepts, design patterns, concurrency and software techniques.
• Web Services & Frontend: React, TypeScript, JavaScript – experience consuming data from various sources and connecting frontend applications to backend services.
• Experience in Application Integration, Monitoring & Control with exposure to Automated Tests, and Proven experience in Data Migration or ETL Engineering.
• Strong knowledge of SQL and relational databases: Oracle, MySQL, SQL Server, PostgreSQL.
• Experience with Data Validation, Reconciliation, and Quality Assurance.
• Good in analyzing requirements, creating technical specifications, using test cases and scenarios.
• Experience with software development tools (e.g., Github, JIRA). Good understanding of full SDLC.
• Ensure compliance with IT security standards, policies and procedures.
• Strong problem solving, analytical, written and communication skills.
• Ability to work collaboratively in cross‑functional teams under tight deadlines.