SQL Developer (ETL, SQL)

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

Job summary

A leading data solutions provider located in Singapore is seeking an experienced professional for ETL and database development. The successful candidate will design and maintain data pipelines, writing efficient SQL queries, and ensuring data integrity and performance. Responsibilities also include documentation and knowledge transfer. The ideal candidate should have a strong foundation in data transformation and integration workflows, coupled with excellent problem-solving skills and attention to detail.

Qualifications

• Experience in ETL/ELT processes for data transformation and loading.
• Strong SQL skills for database development and optimization.
• Knowledge of data integration workflows and performance tuning.

Responsibilities

• Develop and maintain ETL/ELT processes to transform and load data.
• Optimize and maintain complex SQL queries and stored procedures.
• Perform end-to-end verification and validation of processes.
• Document technical architecture and operational guidelines.

Job description

Responsibilities

ETL / Data Pipeline Development

• Develop and maintain ETL/ELT processes to transform and load data from various sources.
• Implement data integration workflows.
• Ensure pipelines are efficient, fault-tolerant, and well-documented.
• Automate data movement and transformation tasks where possible.

Database Development & Performance Optimization

• Write, optimize, and maintain complex SQL queries, stored procedures, and scripts.
• Monitor and tune database performance, indexing, and query execution plans.
• Manage data versioning, schema evolution, and migrations.
• Maintain database integrity, security, and backup processes.

Verification & Validation

• Perform end-to-end verification & validation.

Documentation and Knowledge Transfer

• Develop comprehensive technical documentation including architecture, deployment, and operational guides.
• Create user manuals and administrative procedures.

Kshama

Registration No. / Unique Entity Number: 199801439D

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“This is in partnership with the Employment and Employability Institute Pte Ltd (“e2i”). e2i is the empowering network for workers and employers seeking employment and employability solutions. e2i serves as a bridge between workers and employers, connecting with workers to offer job security through job-matching, career guidance and skills upgrading services, and partnering employers to address their manpower needs through recruitment, training, and job redesign solutions. e2i is a tripartite initiative of the National Trades Union Congress set up to support nationwide manpower and skills upgrading initiatives. By applying for this role, you consent to Quesscorp Singapore’s PDPA and e2i’s PDPA.”