Alex Clemesha

Full-stack software engineer based in San Diego, California.

I input ideas, mix them with code and expertise, and output dynamic modern applications for mobile and the web.


Alex Clemesha has extensive experience with full-stack web & mobile software development, in topics such as mathematics software, science based platforms, location-based mobile applications, and interactive educational web games and native mobile apps.

He studied Computational Physics and Mathematics at UC San Diego. When not spending quality time with a computer, he loves hanging out with his wife Rachel, and being near or in the ocean.

What I've built

Notable projects I've created and grown.
Exploring Wikipedia, gamified! A popular, educational, dynamic multi-player web game challenging players to connect different Wikipedia articles.
  • Over 3 million unique+engaged players, and counting!
  • Modern decoupled API + JavaScript webapp architecture.
  • Built using Python, Django (REST Framework), Angular 7+, PostgreSQL, Redis, Nginx, and more.
Check out my How I Made case study!
Highly rated, beautifully crafted, and fully native iOS application for The Wiki Game.
  • Many years of sales in the Apple App Store.
  • Several In-App purchases, Game Center integration.
  • Python Google App Engine backend.
Scientist-focused cloud ground+satellite & photo+location recording web application.
  • Modern React webapp front-end, utilizing HTML5 geolocation GPS + HTML5 web camera images.
  • Featuring a 'serverless' back-end API built on Amazon Web Services (AWS) Lambda.
  • Utilizes AWS DynamoDB database and images saved on AWS S3.
Visually and interactively learn the structure of music.
  • Educational and gamification focus.
  • Dynamic and interactive Angular + D3.js JavaScript UI.
  • Backend built on Python/Flask Google App Engine REST API.
Program interactively, in Python, from the web browser.
  • Web application to enabling writing and running code directly from the web browser.
  • Precursor to tools such as the Jupyter notebook. (in fact had early collaborations with members of the Jupyter team).

Where I've worked

Select ventures I've been a part of.
  • SageMath

    Open source mathematics software project at University Washington.
    Designed and implemented dynamic plotting packages and other math visualization tools, as well as a web-based interactive computing user interface.
  • Ocean Observatories Initiative

    Real-time ocean science data platform at UC San Diego.
    Large-scale data science platform, built on top of a complex AMQP (RabbitMQ) based service-oriented architecture, running on multiple cloud environments.
  • Coupa

    Cloud-based expenses and spend management software.
    Business employee/user expenses focused work, involving native iOS app development, and working on a large Ruby on Rails web application.
  • zoomMediaPlus

    Bluetooth LE application and MVNO mobile data services web applications and API service endpoints.
    Native iOS (Swift) application frontend, Django API backend. Heavy Amazon Web Services usage including AWS EC2 + VPC, AWS RDS (PostgreSQL), AWS ElastiCache (Redis), etc, and spanning many deployment environment targets.
  • Talon Systems

    Mobile application for vehicle auditing.
    Photo and geolocation native iOS (Swift) application frontend, backed by an Python/Django API on Amazon Web Services. Uses Google Vision OCR service, Amazon Mechanical Turk service, etc.


Technologies I know deeply / respect greatly / use daily.

Interested in how I build & ship full-stack applications?
Check out my How I Made case study!