Senior Software Developer - ETL - Toronto

Randstad Canada; Toronto; On-site; CAD 110,000 - 140,000; Full time

Job summary

Randstad Canada is seeking an experienced Senior Software Developer - ETL to lead end-to-end data and document migration for enterprise modernization. You will analyze, profile, cleanse, and transform legacy data into Azure cloud databases, and build automated migration pipelines using Azure Data Factory, Informatica, and SQL-based tooling.

This onsite Toronto role spans 10 months with close collaboration alongside DBAs and architects.

Qualifications

• 7+ years of ETL, data migration, and data integration experience.
• Experience leading end-to-end data migration projects to cloud databases.
• Strong SQL, PL/SQL, and performance-tuning skills across Oracle and SQL Server.
• Proven ability to architect and implement data profiling, cleansing, and validation strategies.
• Hands-on with Azure Data Factory or Informatica in cloud environments.
• Experience documenting migration strategies, data dictionaries, and mappings.

Responsibilities

• Design and oversee full-lifecycle data and file migration solutions.
• Profile, cleanse, and transform legacy data and attachments for cloud platforms.
• Build, configure, and maintain scalable ETL/ELT pipelines.
• Develop complex SQL/PL-SQL queries and data extraction scripts.
• Lead document attachment migration to cloud storage repositories.
• Create migration artifacts including mappings, data dictionaries, and interface definitions.
• Provide post-migration validation, reconciliation, and audit support.

Skills

ETL

Data Migration

SQL

PL/SQL

Azure Data Factory

Informatica

Data Profiling

Audit & Validation

Tools

Azure Data Factory

Informatica

Oracle

MS SQL Server

Azure SQL Database

Job description

We are seeking an experienced Senior Software Developer - ETL to lead and oversee the end-to-end data and document migration strategy for enterprise modernization initiatives. In this role, you will be responsible for analyzing, profiling, cleansing, and transforming legacy data structures and document attachments into modernized cloud database solutions. Leveraging advanced ETL tools, complex SQL development, and relational database expertise across Oracle, MS SQL Server, and Azure SQL Database, you will develop detailed technical specifications, construct automated data migration pipelines, conduct mock conversions, and ensure data integrity through post-migration reconciliation and audit controls.

Location: Toronto, ON (Fully Onsite – 5 days/week required)

Duration: 10-month contract.

Advantages

• Modern Cloud Stack: Hands-on experience with Azure Data Factory, Azure SQL Database, and cloud storage architectures.
• End-to-End Migration Scope: Lead the full conversion lifecycle spanning data profiling, attachment migration, mock conversions, and cutover.
• Complex Data Integration: Work across diverse relational and non-relational database structures, including Oracle, MS SQL Server, and legacy mainframe data formats.
• Dedicated Onsite Collaboration: Collaborate directly alongside senior database administrators, enterprise architects, and technical leads in a focused 5-day per week workspace.

Responsibilities

• ETL & Data Migration Leadership: Design, develop, document, and execute full-lifecycle data and file migration solutions to transition legacy systems to modernized platforms.
• Data Profiling & Cleansing: Analyze source data across heterogeneous platforms, conduct comprehensive data profiling, and implement pre- and post-migration data cleansing routines.
• Pipeline & Interface Engineering: Build, configure, and maintain scalable ETL/ELT pipelines using Azure Data Factory, Informatica, and custom conversion scripts.
• Complex Database Development: Write and optimize complex SQL queries, PL/SQL routines, and data extraction scripts across Oracle, MS SQL Server, and Azure SQL Database environments.
• Document Attachment Migration: Lead the extraction, mapping, and transfer of legacy document attachments and binary files to modern cloud storage repositories.
• Migration Artifact Documentation: Author data migration strategies, detailed source-to-target mapping documents, data dictionaries, interface definitions, and business case justification files.
• Validation, Audit & Cutover Support: Conduct mock conversions, establish testing strategies, execute post-migration data reconciliation, generate exception reports, and provide cutover support.

Qualifications

• ETL & Data Conversion Experience: 7+ years of experience developing, executing, and documenting ETL processes for large-scale data conversion and migration projects (Strictly Required).
• Modernization & Migration Planning: Extensive experience with data migration planning, legacy-to-cloud application transformations, and data conversion methodologies (Strictly Required).
• Relational Database & Complex SQL: Advanced expertise with relational databases (Oracle, MS SQL Server, Azure SQL Database) and complex SQL/PL-SQL query development (Strictly Required).
• Document & File Attachment Migration: Proven experience migrating document attachments and binary files from legacy applications to modernized solutions (Strictly Required).
• Cloud Database & ETL Tooling: Demonstrated experience with cloud database platforms (Azure SQL) and leading ETL tools such as Azure Data Factory or Informatica (Strictly Required).
• Technical Documentation: Hands-on experience creating ETL mappings, data dictionaries, migration strategies, and technical specifications (Strictly Required).

Nice-to-Have Assets

• Prior data migration or ETL development experience within a public sector or enterprise environment.
• Knowledge of mainframe data formats, segments, and non-relational data structures.
• Experience with case management data models and master data management (MDM) concepts.

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.

Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to [e-mail] to ensure their ability to fully participate in the interview process.

This posting is for existing and upcoming vacancies.