Christopher-John Cassar, PhD

Product & Engineering Leader

Profile Summary

7 years building and leading product & engineering teams across crypto, SaaS, and XR. Proven founder and operator with two successful exits. I ship fast, communicate clearly, and help startups win.

Skills & Expertise

Technical Skills

Languages

JavaScriptTypeScriptC#PythonLuaSolidity

Frameworks & Tools

NextJSNestJSDjangoFlaskUnityReact

Cloud & Database

AWSGCSFirebasePostgreSQLMongoDBSupabase

Product Skills

Management & Strategy

Product StrategyRoadmappingStakeholder ManagementTeam Leadership

Research & Development

User Research0-1 DevelopmentProduct DiscoveryUser Interviewing

Tools

LinearFigmaNotionMixpanelPostHog

Work Experience

TokenOps

January 2025 - Present

Product & Engineering

Founder

Bootstrapped startup. Now called ReactVision

CPTO - [Co-Founder]

Venture backed startup. Raised $1.5M in seed funding.

Versadex Ltd.

Feb 2022 - Aug 2022

Product Engineer [Co-Founder & CTO]

Venture backed startup – Raised a pre-seed round from 7percent Ventures

Obi Vision Ltd.

April 2020 - Oct 2021

Software Engineer [Co-founder & CTO]

XR Venture backed startup – Entrepreneur First

BMT Defense & Security UK

May 2017 - May 2020

R&D XR Engineer

Education

PhD

Human Factors Design & Software Engineering

University College London

MSc

Sustainable Engineering

Strathclyde University

Double BEng (Hons)

Engineering

Strathclyde University

Extracurriculars

Author of "How to Combat Weaponized Lies" (2018)

Advisor to early-stage founders at Entrepreneur First

Guest Lecturer of MECH0107 - Data-Driven Methods for Engineers at UCL

Awards

Sir Peter Gadsden Britain Australia Award

On Deck Membership

Entrepreneur First Funding & Membership

Founding member of District Founders & VCs Community