Simera Professional Key (SPK)

Cristian J

Colombia

Software Developer

3 yrs exp

Skills

  • AWS
  • Bootstrap
  • Docker
  • MongoDB
  • Node.js
  • PostgreSQL
  • React
  • Redis
  • Software Development
  • App Developer
  • BackEnd Developer
  • BI Developer
  • BOT Developer
  • c# Developer
  • ExpressJS
  • Full Stack
  • Full Stack Developer
  • GraphQL
  • iOS Developer
  • Jest
  • Mongoose
  • NestJS
  • NextJS
  • Prisma
  • React Native
  • ReactJS
  • Software Developer
  • Tailwind
  • RESTful APIs
  • WebSockets
  • Fullstack
  • Nuxt.js
  • TailwindCss
  • Nest.js
  • Next.js
  • Express
  • Next js
  • Taildwind
  • GitHub Actions
  • Playwright
  • press
  • Astro
  • AstroJS
  • cursor
  • Express.js
  • REST APIs
  • Full Stach
  • Develper
  • Fullstack developer
  • CursorAI
  • Fullstack Development
  • Full Stack Development

Cristian J

Colombia

Software Developer

3 yrs exp

Skills

  • AWS
  • Bootstrap
  • Docker
  • MongoDB
  • Node.js
  • PostgreSQL
  • React
  • Redis
  • Software Development
  • App Developer
  • BackEnd Developer
  • BI Developer
  • BOT Developer
  • c# Developer
  • ExpressJS
  • Full Stack
  • Full Stack Developer
  • GraphQL
  • iOS Developer
  • Jest
  • Mongoose
  • NestJS
  • NextJS
  • Prisma
  • React Native
  • ReactJS
  • Software Developer
  • Tailwind
  • RESTful APIs
  • WebSockets
  • Fullstack
  • Nuxt.js
  • TailwindCss
  • Nest.js
  • Next.js
  • Express
  • Next js
  • Taildwind
  • GitHub Actions
  • Playwright
  • press
  • Astro
  • AstroJS
  • cursor
  • Express.js
  • REST APIs
  • Full Stach
  • Develper
  • Fullstack developer
  • CursorAI
  • Fullstack Development
  • Full Stack Development

Software Developer

Levels Health
November 2024 - May 2026

Developed, maintained, and optimized web and mobile applications using Next.js, React Native, NestJS, and GraphQL, leveraging AWS cloud infrastructure and Docker-based deployments to deliver scalable, high-performance, and reliable user experiences. Developed and integrated payment workflows using Stripe, webhooks, task queues, and Redis, implementing idempotency mechanisms and asynchronous processing to ensure transaction consistency, reliability, and scalability. Contributed with an appointment scheduling platform integrated with automotive management APIs, improving application reliability and overall user experience reducing scheduling and work-order creation errors to 0% across integrated systems. Contributed to the maintenance and optimization of the Levels Health platform, impacting more than 20,000+ members, and reducing user-reported issues by 30% through debugging, refactoring, and stability improvements. Leveraged generative AI tools and LLM-powered workflows to accelerate feature development, improve technical documentation, streamline debugging, automate testing, and support CI/CD processes, increasing overall engineering productivity.

Software Developer

Nuawi Technologies
December 2023 - November 2024

Designed and developed scalable enterprise applications using Next.js and NestJS, leveraging multi-tenant architectures, microservices, AWS serverless infrastructure, Clean Architecture principles, and Docker containerization for ERP, industrial, and agricultural platforms. Implemented AI-assisted development workflows to enhance code quality, streamline automated test creation, and optimize development and deployment processes in cloud environments. Delivered an average of 6 user stories per sprint, improving feature delivery speed by 30% through optimized development workflows and release processes. Reduced production issues by 25% implementing unit testing with Jest and validating edge cases to improve application stability and code quality.

Fullstack Developer

Make It Real
June 2023 - November 2023

Worked in agile teams using the JavaScript/TypeScript ecosystem to build web applications. Developed an e-commerce platform in under 10 weeks. Migrated legacy systems to modern technologies in 2 weeks. Implemented responsive user interfaces using React and Tailwind.