Christopher Sheaffe

GIS · AI & Analytics · Developer · History Enthusiast · Sydney

This website is continuously updated and modified.

Experience

Senior Data Analyst (Contractor)

Westpac · Remote

Leading the calculation workstream for a mortgage and insurance remediation project across pre- and post-acquisition legacy datasets. Reverse-engineering undocumented systems to reconstruct historical transaction logic, and building custom Python (Pandas/Jupyter) pipelines for entity resolution and fuzzy matching across fragmented sources. Developing automation routines to streamline multi-system data processing and ensure compliance with ASIC regulatory deadlines.

March 2026 - Current

Senior Data Analyst (Contractor)

Westpac · Sydney

Technical lead across three high-stakes remediation workstreams, re-engineering legacy SAS systems into Python to deliver complex mortgage interest recalculations under intense regulatory deadlines. Built a bespoke Python GUI tool that automated a manual customer inquiry pipeline, saving 2 hours per request. Architected a Python-OCR framework that ingested millions of scanned PDFs across distributed platforms, compressing a months-long workload into two weeks and enabling the project to finish ahead of schedule. As the sole data specialist for an urgent superannuation remediation, delivered end-to-end financial logic that met critical milestones.

January 2024 - September 2025

Senior Insights Analyst

Commonwealth Bank of Australia · Sydney

Delivered analytics for high-complexity corporate and retail credit card remediation projects, managing senior business stakeholders and executing multiple parallel workstreams under strict financial confidentiality. Built analytical solutions in Teradata, SQL, Python, and Excel to support regulatory remediation outcomes.

June 2022 - September 2023

Consultant / Data Analyst

Servian / Westpac · Sydney

Delivered data analytics for the National Consumer Credit Protection Act (NCCPA) Remediation Project, producing accurate, audit-ready datasets by reconciling multiple source systems of varying consistency and integrity within a financially confidential environment.

September 2020 - June 2022

Developer / GIS Engineer (Contractor)

TomTom · Sydney

Developed full-stack internal web applications with Django, AWS, and PostgreSQL to automate manual source analysis procedures. Engineered Scrapy-based tools to extract geospatial data from thousands of brand websites, and led ML initiatives using Scikit-Learn and QGIS including automatic road feature categorization for safety ratings. Built a custom GUI for geospatial training-set creation that was adopted by the corporate data science team for ongoing supervised ML workflows. Developed geospatial plugins for Jira and QGIS using Python, Java, and JavaScript.

August 2018 - April 2020

ICT Graduate

Department of Foreign Affairs and Trade · Canberra

Completed a structured ICT graduate program with rotations through network administration, desktop support, configuration management, Agile project management, and change management.