Dave Osborne A long, thin rectangle to divide sections of the document

Consecon, ON

dave at daveosborne dot ca

Systems engineer with 20+ years building reliable, impactful software. Depth in distributed traffic infrastructure, transactional systems, and SQL at scale using Go, Python, and Java.

KEY ACHIEVEMENTS

Designed and deployed a clustered Go HTTP redirection engine serving and tracking tens of millions of responses daily.
Built and maintained high-volume transaction systems with audit and data-forensics reporting on critical high-availability infrastructure.
Led platform migrations (AngularJS → Angular 2 + webpack) and introduced Git, pull-request, and Git-flow practices across engineering teams.

SKILLS

Languages: Go, Python, TypeScript, Java, SQL, PHP, C#

Backend: Microservices, REST, GraphQL, API design

Data: PostgreSQL, MariaDB/MySQL, MSSQL, Oracle, Elasticsearch

Infra & Cloud: AWS, GCP, Docker, Linux, release management

Frontend: React, Angular, Flutter, React Native, Expo, Ionic

Practices: i18n, WCAG/accessibility, observability, code review, Git-flow

AI & Tooling: LLMs, MCP, AI-assisted development workflows

EXPERIENCE

Software Developer — Psiphon Inc, Toronto ON

June 2017 - March 2026

Designed, built and deployed a clustered http traffic redirection engine in Go which serves and tracks tens of millions of responses daily.
Integrated WalletConnect into a major customer-facing app with hundreds of thousands of installs for secure wallet pairing and transaction signing.
Collaborated and mentored teammates on development and release practices.

Front-end Developer — ASL19, Toronto ON

September 2015 - May 2017

Developed Python API services supporting public distribution of circumvention tools through email and Telegram bots.
Led the company’s migration from AngularJS to Angular2 and webpack, improving build performance and developer velocity.
Deployed several large web projects using AngularJS and WordPress to hundreds of thousands of users.

Front-end Developer — Ontario Telemedicine Network, Toronto ON

April 2014 - September 2015

Built a key front-end web app in AngularJS consuming RESTful services.
Introduced Git, pull request and Git-flow practices to the development group.

Lead Developer — ProcessLinx, Richmond Hill ON

August 2012 - March 2014

Designed and developed a system for tracking promotional credit card programs, including accounting and daily reconciliations against batch reports.
Developed a production tracking system for custom steel assembly manufacturing.

Web Application Developer — DCR Strategies Inc, Mississauga ON

April 2010 - July 2012

Maintained and developed a transaction system tracking hundreds of thousands of accounts in .NET and MS SQL on critical high-availability servers.
Troubleshooting transactions and data forensics reporting company-wide.
Responsible for release management on critical high-availability servers.

EARLIER EXPERIENCE

User Interface Developer — Ontario Telemedicine Network, Toronto, ON (2006 - 2010) W3C-compliant JSP/HTML/CSS scheduler app; AJAX videoconferencing interface; CAS/LDAP authentication into Liferay portal.

Web Developer — The Berkeley Electronic Press, Alameda, CA, USA (2007 - 2008) Customer-facing and internal tools in Perl; requirements gathering and stakeholder analysis; introduced degradable JavaScript UI widgets.

Senior Web Developer — CBS Group Inc, Millbrook ON (2005 - 2006) Setup, maintenance, and backup of 200+ sites; transition to open-standards solutions; PHP intranet for client data and work logs.

Team Liason/Programmer — Trent University Software Engineering Project, Peterborough ON (2005 - 2006) SVG/AJAX process-diagramming app supporting TS-16949 process documentation.

Junior Programmer — General Electric (Small Motors), Peterborough ON (2002 - 2003) Statistical analysis of rotor winding saving thousands in material cost; led Access → Oracle 9i migration.

Junior Programmer — Bank of Nova Scotia, Toronto ON (1999 - 2000) Reporting apps in MS Access and Visual Basic; running queries on IBM AS/400 mainframe.

EDUCATION

BSc. (Hons) Computer Studies — Trent University, Peterborough ON (2003 - 2006) President’s Honours and Dean’s Honours. Coursework in Network Security and Algorithms.

Computer Programmer Analyst — Fleming College, Peterborough ON (2001 - 2003) Windows/Linux networking, network security and database design.

Undergraduate, Mathematics — University of Waterloo, Waterloo ON (1997 - 2001) 3.5 years including computer science, classical algebra and calculus.

VOLUNTEERING

Baking and Preserves Convenor, Ameliasburgh Fall Fair; former Treasurer, Ameliasburgh Garden Club; Treasurer, County Garden Club.