JOSÉ DAVID RUIZ TOLEDO
BACKEND DEVELOPER AND DATA ENGINEER
Ciudad de México
Summary
Developer with experience in microservices (Nest.js, MongoDB) and data processing (Python, pandas, ETL, PostgreSQL, MySQL). I have worked on code optimization and process automation, integrating analytical solutions with Power BI. Focused on efficiency, scalability, and alignment with business objectives within agile environments.
Overview
4
4
years of professional experience
1
1
year of post-secondary education
2
2
Languages
Work History
SOFTWARE DEVELOPER
Carfax Mx
11.2022 - 05.2025
- Implementation of scalable microservices in TypeScript (Nest.js), improving software architecture and facilitating the integration of new functionalities.
- Development of RESTful APIs using FastAPI and Flask, enabling efficient communication between services and external systems.
- Creation of unit and integration tests using Pytest, ensuring robustness and maintainability of Python applications.
- Development of a desktop application in .NET (C#) for internal use, optimizing processes and improving operational efficiency.
- Refactoring and optimization of code in Python, TypeScript, and JavaScript, in collaboration with Senior Developers, increasing the performance and maintainability of applications.
- Design and execution of ETL processes in Python, integrating data from PostgreSQL, MySQL, MongoDB, and Neo4j, ensuring quality and availability for analysis.
- Administration and optimization of Neo4j, developing advanced queries in Cypher for graph data modeling and analysis, improving the efficiency of operations based on complex relationships.
- Development of custom solutions, collaborating directly with clients to design and implement products aligned with their business objectives.
DATA ENGINEER
Konfio
07.2022 - 09.2022
- Designed and developed ETL processes for data extraction from an external API, transforming and loading the information into tables within Amazon Redshift, ensuring data integrity and quality.
- Implemented and maintained optimized data flows feeding dashboards in Tableau, following industry best practices and ensuring compliance with business requirements.
- Automated repetitive tasks previously performed manually, improving efficiency and accuracy in querying.
SOFTWARE DEVELOPER
Konfio
11.2020 - 07.2022
- Contributed to the design and implementation of SSO and OTP solutions using AWS (Lambda, S3, Cognito, Redis), improving system security and scalability.
- Managed development tasks autonomously, collaborating with the team in creating microservices and distributed architectures.
- Provided technical support to product teams, ensuring the stability and efficiency of services, including integration with AWS Cognito.
- Developed and applied security patches, improving software functionality and ensuring its performance.
Education
GRADUATE IN - INFORMATION TECHNOLOGIES
Universidad La Salle
Ciudad de México, delegación Cuauhtémoc 01.2022 - 12.2022
Skills
JavaScript
TypeScript
Python
C#
NestJS
Flask
NET
Neo4j
MySQL
PostgreSQL
Amazon Redshift
ETL
API Integration
Microsoft Azure
Amazon AWS
Power BI
Git
GitHub
Good team builder
Timeline
SOFTWARE DEVELOPER
Carfax Mx
11.2022 - 05.2025
DATA ENGINEER
Konfio
07.2022 - 09.2022
GRADUATE IN - INFORMATION TECHNOLOGIES
Universidad La Salle
01.2022 - 12.2022
SOFTWARE DEVELOPER
Konfio
11.2020 - 07.2022