David Pritchard's Résumé

Summary of Qualifications

Software Developer & Data Scientist with 17 years of experience
Problem solver with outstanding numerical and analytical skills, exceptionally fast learner
Expert knowledge of C++, sixteen years experience
Team leader with experience supporting staff development, scoping workplans, managing projects and consultants
Clear communicator with particularly strong visual skills
Experienced across full stack including Unix toolchain, UIKit and Objective C/C++, Javascript/Typescript, Node, React, Universal Windows Platform, R, GIS databases, OpenGL, much much more
Many areas of technical proficiency: 3D graphics, object-oriented design patterns, logit model estimation, systems programming, computer vision

Selected Work
Experience

Mental Canvas

2016 – 2021

Remote

Senior Software Developer

Jack-of-all-trades in very small team making an innovative 3D sketching tool largely in C++ and OpenGL ES/Metal, targetting iOS and Windows (UWP)
Built graphics features: both 3D (camera controls, picking feature, shaders, BSP), 2D imaging (antialiased line/brush rendering, compositing, lasso tool)
Built user interface and system features: touch with direct manipulation, responsive layout, system lifecycle management (suspend/resume), crash reporting data, user telemetry
Architected cross-platform user interface to maximize code sharing while porting from Windows to iOS. Adopted reactive design with portable viewmodels, bindings to native views (UIKit/XAML).
Championed CI/CD approach: first automatic nightly builds with Azure Pipelines, then mobile app deployment and finally automated provisioning+deployment for backend systems
Led development of a web-based 3D scene viewer in Typescript / WebGL / three.js. Major features include full support for mobile web, polished 3D controls taking full advantage of touch and trackpad, and Azure backend for storage
Scoped features, maintained and prioritized bug backlog, provided feedback on peers' work

Metrolinx

2008 – 2016

Toronto, ON

Manager, Modelling & Geomatics (2015 – 2016)
Senior Advisor, Strategic Policy & Systems Planning (2010 – 2014)

Lead for travel demand forecasting at regional planning agency
Effectively a data science position: running a computationally intensive statistical model designed for ridership forecasting, then interpreting and explaining the results.
Improved quality control process; calibrated and automated transit assignment in EMME-based four-stage travel demand model.
Introduced software best practices to modelling team: scrum/agile work planning, distributed version control, regression testing
Managed a growing team: two staff for 2012–14, up to five staff for 2015–16. Informal mentoring role for a broader group of 10–15 staff. Duties included budgeting, hiring, performance reviews
Taught internal course on data visualization and communication
Led many studies: ridership forecasting, cost-benefit, transportation planning, rail electrification
Steered launch of Enterprise GIS system and new base map

Side Effects Software

2003 – 2006

Remote

3D Software Developer, Houdini dynamics team

Researched, designed and programmed physics-based cloth simulator in C++ on Linux/Windows
Implemented Delaunay triangulation algorithm, a complex mesh-based approach involving quad-edge data structure
Implemented advanced cloth/cloth collision algorithm, with challenging numerical properties due to ultra-thin geometry

Co-op Student / Developer

1996..2001

Autodesk (Alias, Discreet divisions), Side Effects Software, alt.software, Cadabra Design Libraries. 7 terms × 4 months

Education

University of Toronto

2006 – 2008

Toronto, ON

M.A.Sc. in Civil Engineering (A+)

University of British Columbia

2001 – 2003

Vancouver, BC

M.Sc. in Computer Science (92%)

University of Waterloo

1996 – 2001

Waterloo, ON

B.A.Sc. in Computer Engineering (90%)