Senior BI Developer: Power BI, Snowflake & Data Mastery

Greenfield Industries, Inc.

Canada

Hybrid

CAD 90,000 - 150,000

Full time

14 days+

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Job summary

Walter Surface Technologies is seeking a hands-on Senior BI Developer to build, maintain, and support its BI environment using Sigma, Power BI, Snowflake, SQL, and dbt. You will translate business needs into scalable reporting, data models, and governed datasets while participating in migration of legacy processes to modern Snowflake/dbt solutions.

Expect collaboration with Finance, Sales, and Operations and adoption of AI-assisted development tools with governance.

Qualifications

Strong SQL skills and the ability to work with complex relational datasets.
Hands-on experience developing and supporting dashboards, reports, semantic models, or governed analytical datasets using Sigma, Power BI, or another modern BI platform.
Experience with Snowflake or a comparable cloud data platform.
Knowledge of dbt or another SQL-based data transformation framework.
Practical understanding of dimensional modeling, fact and dimension tables, data warehousing, and ETL/ELT concepts.
Experience validating and reconciling data across source systems, transformations, and reports.
Familiarity with Git, GitHub, code review, and controlled deployment practices.
Experience using AI-assisted development tools such as Codex, Claude Code, or comparable tools is considered an asset.
Ability to evaluate AI-generated code and content for accuracy, security, maintainability, and alignment with business requirements.
Strong analytical and problem-solving skills, with careful attention to data accuracy and quality.
Ability to manage work from requirements and design through testing, deployment, documentation, and support.
Strong communication skills and the ability to explain data and reporting concepts to non-technical audiences.

Responsibilities

Design, develop, test, deploy, and maintain dashboards, reports, datasets, and semantic models using Sigma and Power BI.
Translate business requirements into intuitive and scalable BI solutions supported by consistent measures, dimensions, and business definitions.
Develop and maintain SQL-based transformations and analytical models in Snowflake.
Contribute to dbt models, testing, documentation, and development standards.
Monitor critical reports, datasets, refreshes, gateways, and related processes.
Troubleshoot reporting failures, performance concerns, access problems, and data-quality issues across reporting and data layers.
Assess Alteryx workflows and migrate appropriate business logic into maintainable SQL and dbt models.Validate and reconcile new or migrated solutions against source systems, existing results, and approved business rules.
Use Git, GitHub, and AI-assisted development tools such as Codex or Claude Code to support version control, code review, testing, documentation, troubleshooting, and controlled deployment.
Apply appropriate judgment when using AI tools and protect confidential, proprietary, and sensitive information in accordance with company policies.
Maintain documentation covering data models, business rules, dependencies, ownership, lineage, and support procedures.
Partner with Finance, Sales and Marketing, Supply Chain, Operations, and other functions on requirements, testing, training, deployment, and adoption.
Identify opportunities to consolidate redundant reporting, reduce technical debt, and improve performance, reliability, and maintainability.