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Profile

The systems matter. So does how you enter them.

Work authorization

Canada

Current location
  • Canadian citizen
  • Based in Toronto, Ontario
  • NEXUS card holder

United States

Work authorization
  • Canadian citizen (TN for qualifying US roles)
  • Open to relocation (US / Canada)
  • Open to H-1B or green card sponsorship if needed
Working Set

Working Set

Tools grouped by the phase of work they serve.

01Languages
  • Python
  • SQL
  • Teradata SQL
  • BigQuery SQL
  • SAS
  • R
  • Bash
  • TypeScript
  • Java
  • C
02Data Engineering
  • ETL/ELT
  • Batch Processing
  • Change Data Capture
  • MERGE Upserts
  • Backfills
  • Airflow
  • Cloud Composer
  • Pandas
03Modeling & Warehousing
  • Dimensional Modeling
  • Star Schema
  • SCD Type 2
  • Data Marts
  • Semantic Layer
  • BigQuery
  • Teradata
  • PostgreSQL
04Cloud & Platform
  • GCP
  • Cloud Run
  • Terraform
  • GitLab CI/CD
  • GitHub Actions
  • Docker
  • AWS
  • Linux
  • Git
05Quality & Operations
  • Data Quality
  • Reconciliation
  • Monitoring & Alerting
  • Incident Response
  • Root Cause Analysis
  • Data Lineage
  • Data Governance
06Analytics & AI
  • MicroStrategy
  • dbt
  • Statistical Analysis
  • Scikit-learn
  • Machine Learning
  • AI Coding Assistants
Trajectory

From reproducible research tooling to owning production data systems: named change-control gatekeeper and peer reviewer seven weeks in, and now the owner of 25+ production data pipelines, including 14 scheduled control flows. The scope widened from individual pipelines to platform concerns: warehouse architecture, migration reliability, and team-wide data governance standards.

FromTo
Reproducible research toolingIdempotent production pipelines
"Make it work" correctnessPerformance-engineered systems
Per-job SQL ETLA four-layer BigQuery warehouse architecture
Individual executionChange-control gatekeeper, then owner of 25+ pipelines
Reactive incident debuggingProactive data-quality gating
Technical-task reportingBusiness-value storytelling for directors
Ownership matrix (current role)
AreaI ownI partnerI support
Data Pipelines✓
Data Quality✓
Incident Response✓
Change Control✓
Backfills & Recovery✓
Warehouse Architecture✓✓
Performance Tuning✓✓
Stakeholder Comms✓✓
Monitoring & Alerting✓✓
Documentation✓✓✓
How I work
01

Find the invariant.

Strip noise. Name the constraint. Design around what doesn't change.

02

Make failure visible.

Instrument early. Surface truth. Learn in public, fix in time.

03

Leave a system easier to trust.

Document decisions. Reduce friction. Build for the next operator.

See the career ledger →
Sabbir Hossain · ProfilePage 06