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Mark Ramsey

@markramsey

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Senior Full Stack Engineer at CUN LLC, scaling a SaaS platform to 430K+ monthly users at 99% uptime.

United States

Message

At CUN LLC, I build and maintain a SaaS platform used by 430K+ people a month, with 99% uptime. I improved page load times by 45% and tuned PostgreSQL queries to cut average query time by 60%.

I also added LLM features using OpenAI and Anthropic APIs, and set up CI/CD that moved releases from every two weeks to daily. I lead a distributed engineering team and mentor four junior developers.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Engineer

Current

CUN LLC

Oct 2023 - Present (3 years)

Build and maintain a SaaS platform used by 430K+ people monthly with Python/Django backend and React/Next.js frontend, achieving 99% uptime and API responses under 200 ms. Lead a distributed team, set up CI/CD with GitHub Actions and Docker, and added LLM features using OpenAI and Anthropic APIs.

Python Django React Next.js TypeScript NodeJS Express MongoDB Ruby on Rails Stripe Sidekiq WebSockets PostgreSQL Redis CDN OpenAI Anthropic RAG Pgvector GitHub Actions Docker CI CD Pytest RSpec Jest Cypress

Full Stack Engineer

Inteltech

Jan 2021 - Sep 2023 (2 years 8 months)

Scaled a multi-tenant Django application to 195K+ users and built a Ruby on Rails API backend for a React SPA. Shipped real-time collaboration features, integrated 20+ third-party services, and implemented security measures including OAuth 2.0 and RBAC.

Django Ruby on Rails React Redux toolkit TypeScript Angular Storybook Celery PG Bouncer Redis Kafka Docker Kubernetes Elasticsearch WebSockets OAuth JWT SSO RBAC OWASP Top 10

Software Engineer

NetSolutions

Mar 2018 - Dec 2020 (2 years 9 months)

Shipped 15+ features for a Django e-commerce platform and built Ruby on Rails features for 50K+ users. Built shared Angular and React component libraries and optimized database queries to improve page load times by 40%.