c
cristianjimnezs

Cristian J

@cristianjimnezs

Fullstack Developer Typescript, React, Node, AWS, Docker

Colombia
Spagnolo, Inglese
Alcune informazioni sono riportate in lingua inglese.
Chi sono
Full Stack Developer with over 3 years of experience building applications using React, Next.js, Node.js, and NestJS. Experienced in developing scalable architectures based on microservices, REST APIs, and serverless solutions on AWS and Docker. Worked on real-world products for startups and international companies, contributing to the development of new features, performance optimization, legacy system maintenance, and continuous improvement of user experience. Familiar with agile methodologies (SCRUM), cloud service integration, and software development focused on quality and scalability.... Continua a leggere

Competenze

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cristianjimnezs
Cristian J
offline • 
Tempo di risposta medio: 1 ora

Consulta i miei servizi

Siti web personalizzati
I will build a responsive nextjs landing page or react web application
A partire da80 USD / progettoMaggiori dettagli
Sviluppo CRM ed ERP
I will develop a custom erp system using nextjs and nestjs
A partire da200 USD / progettoMaggiori dettagli

Portfolio

Esperienza lavorativa

Level_Up

Software Developer

Level Up • Lavoratore autonomo

Nov 2024 - May 2026 • 1 yr 6 mos

● 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

Nuance Energy Group • Lavoratore autonomo

Dec 2023 - Nov 2024 • 11 mos

● Designed and developed scalable enterprise applications using Next.js and NestJS, leveraging multitenant 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.

Make_It Simple

Fullstack Developer

Make It Simple • Lavoratore autonomo

Jun 2023 - Nov 2023 • 5 mos

● 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.