Cristian Sotomayor

Cristian Sotomayor

Mentor
Rising Codementor
US$8.00
For every 15 mins
ABOUT ME
Software Developer
Software Developer

Frontend Developer with more than 8 years of experience developing software using mainly JavaScript and Typescript.

I developed my career as a software developer, lead developer, technology leader, technical advisor of IT teams and advising other developers to start their careers or solidify their knowledge. Aiming to be part of teams where I can grow as a developer and as a leader to be able to continue creating incredible products. I’m mainly interested in the fintech sector and above all I want to create products that impact people's lives.

Spanish, English
Lima (-05:00)
Joined November 2021
EXPERTISE
8 years experience
8 years experience
5 years experience
5 years experience
5 years experience
5 years experience
3 years experience

REVIEWS FROM CLIENTS

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SOCIAL PRESENCE
GitHub
LearningRxjs
Aca dejare todos mis experimentos con rxjs para que no se pierdan
JavaScript
3
0
djangoEcomerce
Test django-ecomerce
Python
1
0
EMPLOYMENTS
Senior software developer
2ulaundry
2024-01-01-2025-12-01

Built two full production React Native apps using Expo and TypeScript for a U.S.-based on-demand laundry and dry-cleaning platform.</p...

Built two full production React Native apps using Expo and TypeScript for a U.S.-based on-demand laundry and dry-cleaning platform.

Consumer app: implemented order management, user authentication, profile flows, schedule generation, and Stripe payment integration — handling complex UI logic across Android and iOS.

Driver app: built real-time GPS tracking for laundry pickup drivers with live route management and status updates.

Integrated Firebase for push notifications and as a backend service layer across both applications. Managed full App Store and Google Play submission cycles using EAS Builds.

Worked closely with U.S.-based product and design teams in an async remote environment, owning features end-to-end from technical planning through production deployment.

TypeScript
Firebase
React
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TypeScript
Firebase
React
JavaScript
React Native
NestJS
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senior frontend developer
mgm resorts
2023-09-01-2025-12-01

MGM Resorts one of the most famous group of casinos and hotels located mainly in Las Vegas. I worked like a senior frontend develo...

MGM Resorts one of the most famous group of casinos and hotels located mainly in Las Vegas. I worked like a senior frontend developer in charge of a big migration of his resources in the frontend like his own UI library and maintaining of a micro-frontend app.

· Maintained a complex web platform built with React, Nextjs and micro-frontend architecture exploring the exhaustive use of this pattern and how to maintain it to scale a product to thousands of concurrently users. (Superformula – MGM Resorts)

· Developed a robust and accessible design system using storybook, jest, cypress, styled components and using the top standards of the industry to create interfaces which can be used without problems by most of the world's population. (Superformula – MGM Resorts)

· Participated in the re-establishment and implementation of world-leading security protocols during a data breach from the frontend side. Understood the implications of making granular, testable, and secure releases that meet the needs of the business in times of tension. (Superformula – MGM Resorts)

· Contributed to a shared React Native UI component library as part of the enterprise Design System, ensuring visual consistency and accessibility standards across mobile platforms.

React
JavaScript
GraphQL
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React
JavaScript
GraphQL
NestJS
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senior frontend developer
superformula
2023-09-01-2023-10-01

Worked for a large company MGM Resorts

· Maintained a complex web platform built with React</s...

Worked for a large company MGM Resorts

· Maintained a complex web platform built with React, Nextjs and micro-frontend architecture exploring the exhaustive use of this pattern and how to maintain it to scale a product to thousands of concurrently users.

· Developed a robust and accessible design system using storybook, jest, cypress, styled components and using the top standards of the industry to create interfaces which can be used without problems by most of the world's population

· Participated in the re-establishment and implementation of world-leading security protocols during a data breach from the frontend side. Understood the implications of making granular, testable, and secure releases that meet the needs of the business in times of tension.

React
Jest
Next.js
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React
Jest
Next.js
Storybook
Cypress
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PROJECTS
Personal website using Nextjs + Atomic designView Project
2022
TypeScript
Docker
React
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TypeScript
Docker
React
Next.js
Storybook
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