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Apptoza Inc.

SQL Server / SSIS ETL Developer

  • Toronto, ON, Canada

Contract

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Job type
Contract
Closing date
Posting language
English
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Original job description

Archived listing. The details below describe a past opening.

Role: SQL Server / SSIS ETL Developer

Location: Toronto, ON – Hybrid

Contract Role

Job Description

Database and ETL Development Analyze business requirements and convert them into technical specifications, data mappings, ETL rules, and implementation tasks. Design, develop, and maintain SQL Server database objects including tables, stored procedures, functions, views, indexes, and scripts. Develop, enhance, and troubleshoot SSIS packages for data extraction, transformation, loading, validation

SQL Developer with strong expertise in writing and optimizing complex SQL queries. The candidate will be responsible for performance tuning, database development, and ensuring efficient data retrieval to support business applications and reporting needs.

Key Responsibilities

Develop, write, and maintain complex SQL queries, stored procedures, and functions Perform query optimization and performance tuning Analyze and improve slow-running queries and execution plans Design and implement efficient database structures and indexing strategies Work closely with application and data teams to understand data requirements Troubleshoot data-related performance issues Support ETL processes and data transformations (if applicable) Ensure data integrity, consistency, and security Document database designs, logic, and optimization techniques

Required Skills

Strong expertise in SQL (Oracle / SQL Server ) Hands-on experience in:

Complex joins, subqueries, and CTEs

Window functions (ROW_NUMBER, RANK, etc.) Stored procedures, triggers Experience in query optimization and performance tuning

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More about this job

Responsibilities

Develop and maintain SQL Server database objects and SSIS packages, translating business requirements into technical specifications, data mappings, and ETL rules. Optimize queries and database structures, troubleshoot performance and data issues, support data transformations, and document database designs and logic.

Requirements

Requires strong SQL expertise with Oracle or SQL Server and hands-on experience writing complex queries using joins, subqueries, CTEs, and window functions. Experience with stored procedures, triggers, query optimization, and performance tuning is required.

Skills

  • SQL
  • SQL Server
  • Oracle
  • SSIS
  • ETL Development
  • Complex Queries
  • Stored Procedures
  • Functions
  • Triggers
  • Query Optimization
  • Performance Tuning
  • Execution Plans
  • Database Design
  • Indexing Strategies
  • Data Mapping
  • Data Integrity

Visa sponsorship

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Categories

  • Technology
  • Software
  • Data & Analytics

Keywords

  • SQL
  • SQL Server
  • Oracle
  • SSIS
  • ETL
  • Database Development
  • Stored Procedures
  • Functions
  • Triggers
  • Views
  • Tables
  • Indexes
  • Complex Joins
  • Subqueries
  • Common Table Expressions
  • Window Functions
  • Query Optimization
  • Performance Tuning
  • Execution Plans
  • Data Extraction
  • Data Transformation
  • Data Loading
  • Data Validation
  • Data Mapping
  • Data Integrity
  • Data Security
  • Database Structures
  • Business Requirements
  • Technical Specifications

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