Hi, I'm Cristoval đź‘‹
Independent Software Engineer, specializing in robust payment systems. I love building things and helping people.
CM

About

Hi, I’m Cristoval Martinez—a software engineer and web developer with a deep passion for building scalable and efficient digital products. My path into tech wasn’t traditional; after excelling in sales for over five years, I transitioned into software development through self-study, boot camp, and hands-on experience. Now, I specialize in full-stack development, payment systems, and cloud infrastructure, working with businesses of all sizes—from startups to established companies—to streamline operations, optimize user experiences, and integrate seamless payment solutions while ensuring compliance. As a certified Stripe developer with expertise in PayPal and Square, I understand the complexities of modern payment systems and how to implement them for maximum efficiency and security. Beyond development, I’m passionate about dabbling with A.I., automation, MVP development, and scaling businesses through technology.

Work Experience

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Solano Advocates For Victims of Violence

August 2024 - current
Software Engineer
Implemented the Bitcoin discreet log contract (DLC) protocol specifications as an open source Typescript SDK. Dockerized all microservices and setup production kubernetes cluster. Architected a data lake using AWS S3 and Athena for historical backtesting of bitcoin trading strategies. Built a mobile app using react native and typescript.
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COPARK A/S

Janurary 2024 - current
Software Engineer
Implemented the Bitcoin discreet log contract (DLC) protocol specifications as an open source Typescript SDK. Dockerized all microservices and setup production kubernetes cluster. Architected a data lake using AWS S3 and Athena for historical backtesting of bitcoin trading strategies. Built a mobile app using react native and typescript.
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Shopify

January 2021 - April 2021
Software Engineer
Implemented a custom Kubernetes controller in Go to automate the deployment of MySQL and ProxySQL custom resources in order to enable 2,000+ internal developers to instantly deploy their app databases to production. Wrote several scripts in Go to automate MySQL database failovers while maintaining master-slave replication topologies and keeping Zookeeper nodes consistent with changes.
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SkyRecruitment

April 2022 - September 2023
Junior Software Engineer
Designed and implemented a robust password encryption and browser cookie storage system in Ruby on Rails. Leveraged the Yahoo finance API to develop the dividend.com equity screener

Skills

React
Next.js
Typescript
Node.js
Electron
Deno
RustLang
GraphQL
Postgres
MongoDB
Redis
TailwindCSS
ChakraUI
Css
Sass
Docker
Kubernetes
Stripe
Paypal
Google Cloud
Jest
Playwright
My cool portfolio

Check out my latest work

I've worked on a variety of projects, from simple websites to complex web applications. Here are a few of my favorites.

COPARK CRM

With the release of the OpenAI GPT Store, I decided to build a SaaS which allows users to collect email addresses from their GPT users. This is a great way to build an audience and monetize your GPT API usage.

Next.js
Node.js
Typescript
PostgreSQL
Prisma
TailwindCSS
Stripe

Magic UI

Designed, developed and sold animated UI components for developers.

Next.js
Typescript
PostgreSQL
Prisma
TailwindCSS
Stripe
Shadcn UI
Magic UI

llm.report

Developed an open-source logging and analytics platform for OpenAI: Log your ChatGPT API requests, analyze costs, and improve your prompts.

Next.js
Typescript
PostgreSQL
Prisma
TailwindCSS
Shadcn UI
Magic UI
Stripe
Cloudflare Workers

Automatic Chat

Developed an AI Customer Support Chatbot which automatically responds to customer support tickets using the latest GPT models.

Next.js
Typescript
PostgreSQL
Prisma
TailwindCSS
Shadcn UI
Magic UI
Stripe
Cloudflare Workers
Contact

Let's connect!

You can find me on social media or email me,
cristovalamartinez@gmail.com