09/19/2025 updated
100 % available
Full Stack Web/Backend Developer with NestJS, Node.js and PostgreSQL expertise
Soledad, Colombia
Only remote
Full Stack Web Developer/Chemical EngineerApplication Programming Interfaces (APIs)HTML5Unit TestingBootstrap (Software)Cascading Style Sheets (CSS)DatabasesData ModelingDevOpsGitHubJSONPython (Programming Language)PostgreSQLNode.jsTestingReact.js
Backend Development
Expertise in building robust, secure, and scalable web systems using NestJS, Node.js, and PostgreSQL. Implementation of secure authentication with JWT and Bcrypt.
API Design & Development
Optimization of JSON response formats in verification endpoints, standardization of API documentation, and implementation of robust validation systems.
Database Management
Design and optimization of PostgreSQL database structures, data modeling, and ensuring consistency between ERD and implemented databases.
Frontend Technologies
Knowledge of React.js, HTML5, CSS3, and Bootstrap for creating responsive and user-friendly interfaces.
DevOps & Infrastructure
Experience with Docker for containerization, Git/GitHub for version control, and cloud deployment configurations.
Testing & Quality Assurance
Development of unit tests with Jest, implementation of validation with Zod, and ensuring consistent meta response structures.
Python Development
Building backend systems using Flask with PostgreSQL integration and Docker for deployment configuration.
Expertise in building robust, secure, and scalable web systems using NestJS, Node.js, and PostgreSQL. Implementation of secure authentication with JWT and Bcrypt.
API Design & Development
Optimization of JSON response formats in verification endpoints, standardization of API documentation, and implementation of robust validation systems.
Database Management
Design and optimization of PostgreSQL database structures, data modeling, and ensuring consistency between ERD and implemented databases.
Frontend Technologies
Knowledge of React.js, HTML5, CSS3, and Bootstrap for creating responsive and user-friendly interfaces.
DevOps & Infrastructure
Experience with Docker for containerization, Git/GitHub for version control, and cloud deployment configurations.
Testing & Quality Assurance
Development of unit tests with Jest, implementation of validation with Zod, and ensuring consistent meta response structures.
Python Development
Building backend systems using Flask with PostgreSQL integration and Docker for deployment configuration.
Experience
Professional experience0 - 5 years
Freelancer since2024
Languages
EnglishFluentSpanishNative speaker
Project history
Internship in the Fintech sector. Tasks include organization & documentation, data modeling & consistency, backend/API design & standardization, and implementing security features.
Web Application for a Business Risk Management Association. Designed and implemented an informative website with user registration, login, and payment platform features using NestJS, PostgreSQL, and React.js.
Web Application for Monitoring, Analysis, and Optimization of Energy Consumption. Built with Flask (Python), PostgreSQL, Docker, and React.js/Vite with data analytics and machine learning features.