Mid-Level Backend Developer

IOTALENTS PTE. LTD.; Singapore; On-site; SGD 60,000 - 80,000; Full time

Job summary

A tech solutions provider in Singapore is looking for a Data Migration Specialist to manage the migration of data from legacy systems. The role requires expertise in ETL processes, database management, and problem-solving skills. Candidates should possess a degree in Computer Science or related fields and have at least 3 years of experience in large-scale systems development. This position offers competitive compensation and opportunities for career growth.

Qualifications

• Minimum 3 years of experience in developing and supporting large-scale systems.
• Proficient in Web services and API technologies.
• Experience in data migration or ETL engineering.

Responsibilities

• Manage and execute data migration from legacy systems.
• Design and execute data migration scripts.
• Conduct trial migrations and validate data.

Skills

ETL processes

Database management

Data quality validation

Problem-solving skills

Java

Python

SQL

Education

Degree in Computer Science/Information Technology

Tools

Git

Jenkins

JIRA

Job description

Summary:

• The candidate is expected to manage and execute the migration of data from legacy systems to new platforms, ensuring accuracy, integrity, and minimal disruptions to business operations.
• He/she should 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 migration scope
• Collaborate with business and IT teams to plan migration timelines and strategies (e.g., cutover plan, rollback plan)

Data extraction, transformation, and loading

• Design, develop, and execute data migration scripts
• Map, transform, and cleanse data to meet the target system’s requirements
• Perform incremental and full data migrations with minimal downtime
• Ensure data integrity, consistency and accuracy

Testing and validation

• Conduct trial migrations 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 migration 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.

Requirements:

• Possess a degree in Computer Science/Information Technology or related fields.
• Minimum 3 years of experience in developing and supporting large-scale systems and applications, with strong object-oriented and core programming skills (e.g., Java, Python, JavaScript, .NET, C#, etc.)
• Possess a good understanding of object-oriented concepts, design patterns, concurrency, and software techniques.
• Proficient in Web services, API technologies, and concepts (e.g., JavaScript, .NET Core, XML, HTML, etc.).
• Experience in application integration, monitoring, and control with exposure to automated tests.
• 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.
• Proficient in consuming data from a variety of sources and connecting frontend applications to backend services.
• Good at analyzing requirements, creating technical specifications, and using test cases and scenarios.
• Experience with software development tools (e.g., Git, Jenkins, JIRA)
• Good understanding of the full System Development Life Cycle.
• 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