Joseph Zhang

Co-Founder

Stanford, California, United States1 yr 7 mos experience

Key Highlights

Founder of innovative card collection platform.
Led multiple projects in blockchain and consulting.
Passionate about technology and social impact.

Stackforce AI infers this person is a versatile Software Engineer with a focus on Blockchain, E-commerce, and Nonprofit sectors.

Contact

joseph@catchbackcards.com LinkedIn

Skills

Other Skills

C++MATLABSwift (Programming Language)Python (Programming Language)Microsoft OfficeC

About

Hi there! I quit my job to sell Pokemon cards. https://x.com/sohan_zhang I studied Computer Science at Stanford (Artificial Intelligence Track) and am particularly interested in both studying and characterizing novel materials in technology and in coding projects that have the potential for high social impact. I'm passionate about projects regarding the intersection of innovative technology, sustainability, and resource allocation/equity. In my free time, I enjoy playing squash, creating pop remixes/mashups, and reading everything from Fantasy to biographies, as well as shamelessly looking up the answers to the New York Times crossword puzzles.

Experience

1 yr 7 mos

Total Experience

5 mos

Average Tenure

4 mos

Current Experience

Catchback cards

Founder

Dec 2025 – Present · 4 mos · San Francisco, California, United States · On-site

CatchBack Cards (YC W26) is an iOS and web platform for maximizing the thrill of collecting Pokemon and Sports cards. We allow collectors to create custom mystery packs with personalized chases and customized odds with cryptographically trusted tooling. Users can rip open digital packs and get physical cards shipped to them, receive buyback offers on cards pulled from their mystery packs sent straight to Venmo and PayPal, and buy/sell cards in our $1 marketplace.

Nexus

Software Engineer

Apr 2025 – Oct 2025 · 6 mos

Created and maintained the dashboard for proving network performance and rewards allocation at a crypto company, optimizing the frontend to reduce computational load by 15% and increase screen rendering speed.
Architected and deployed the referrals leaderboard, including backend system design and implementation.
Established and authored the full documentation site (docs.nexus.xyz) to improve developer onboarding and product adoption.
Led decentralized application (dApp) development workshops, educating teams and external partners on Web3 best practices.
Developed an NFT creation platform, enabling scalable token issuance and community engagement

Mckinsey & company

Consultant - Digital and Analytics

Sep 2024 – Mar 2025 · 6 mos · San Francisco Bay Area

Business Analyst on multiple cross-functional studies, including analysis of KPI metrics for software delivery and AI integration at a Fortune 500 company.
Led workstreams on pricing model development, advanced SQL-based data analysis for client company, and organizational transformation initiatives, enabling data-driven decision-making and improved operational efficiency.

Amazon web services (aws)

Software Engineer

Jun 2024 – Sep 2024 · 3 mos · Seattle, Washington, United States · On-site

Created state-tracking tracer architecture (cloud storage) regarding the data eviction process after persistence on long-term tape storage
Submitted code reviews across 3 major service components and led design proposal for project

The farmlink project

Software Engineer

Jun 2023 – Sep 2024 · 1 yr 3 mos

Architected a donor portal using JavaScript, PHP, and Laravel to effectively display donor data and live transports
Designed a streamlined relational database architecture for managing donation deals and infrastructure management

Mckinsey & company

Business Analyst - Digital and Analytics

Jun 2022 – Sep 2022 · 3 mos · Atlanta, Georgia, United States

Initiated operations workflow (market research and financial oversight) for a Fortune 500 Healthcare Company
Maintained pricing model to report demand shaping across eight large scale operations capabilities, financial oversight on ~$80M 3-year contract and recommended negotiations to Steering Committee and procurement team
Analyzed IT infrastructure, recommended KPI metrics, and spearheaded implementation strategy to C-suite executives

Abilityhacks

CS for Social Good Studio Instructor

Jan 2021 – Jun 2021 · 5 mos · Atlanta, Georgia, United States

Project manager on a student team working to expand navigation accessibility to disabled sailors
Coordinating with nonprofit to develop an app (React/Node JS) to help blind sailors navigate public areas

Unicef

Software Engineer

Sep 2020 – Nov 2020 · 2 mos

App development internship working to improve interface and performance, connecting conversations with U-Reporters to global policymakers on emergency relief and health policy on a platform used by 8 million existing users spanning 60 countries.