Secure Distributed Banking Ledger
C#.NETMySQL
Architected a secure RESTful API for financial transaction processing, implementing JWT Authentication to safeguard user data and prevent unauthorized access.
Hi! I'm César Alexander
A computer science graduate, and software developer, focused on web development and data engineering.
I am a Computer Science graduate at UANL and a Software Engineer, with a strong interest in web development and data engineering.
Currently working as a Developer Analyst at Grupo DEACERO.
Experience
Developer Analyst at Grupo DEACERO
June 2026 - PresentSolving SQL issues on the manufacture area, helping different teams with errors analysis and solving through finding the root cause.
Technologies: SQL, GCP, SQL Server, Python, Jira.Data Engineer Intern at Grupo DEACERO
March 2025 - June 2026Led the migration of ETL workflows from SQL Server to Google BigQuery, refactoring legacy T-SQL and Excel logic to optimize compute resources and engineering a Python-based automated QA framework. Designed and implemented a Salesforce-to-BigQuery replication architecture using Google Datastream. Refactored a multi-source replication module (SQL Server, Salesforce) improving maintainability. Operated and monitored SQL Server replication pipelines ensuring reliable CDC-based sync.
Technologies: Python, SQL, T-SQL, GCP, BigQuery, Datastream, Airbyte, Salesforce, CDC.Projects
Real-Time Social Content Platform
AngularIonicFirebaseTypeScript
Developed a high-performance mobile-first application using Angular and Ionic, replicating complex social graph interactions and feed algorithms. Integrated Firebase for real-time synchronization.
Code repository not available
PSell Kitchen Dashboard
Supabase RealtimePowerSync
Designed a real-time, bidirectional sync architecture using Supabase Realtime and PowerSync. Built a Kanban-style kitchen operations dashboard with automated visual/audio alerts and time-based status tracking to improve throughput.
Code repository not available
Enterprise Event Management System
C#.NETSQL ServerAzure
Led backend development designing normalized SQL Server database schemas to manage complex event data. Built and deployed CRUD API endpoints on Azure facilitating seamless event creation.
Code repository not available
VLRCards
PythonNext.jsFastAPITailwindCSSSQLiteBeautifulSoup
FIFA-style rating system and player database for VALORANT using VCT data from vlr.gg. Features a Python ETL pipeline with scraping, SQLite database, FastAPI backend, and a modern Next.js frontend.
View Live ProjectCode repository not available
About me
Computer Science graduate with professional experience in Data Engineering and Cloud Architecture. Proven track record of optimizing data pipelines and metadata governance at Grupo DEACERO. Proficient in building scalable applications using Google Cloud Platform, Python, and SQL. Passionate about automating data workflows and developing systems.
Education
Bachelor of Science in Computer Science at Universidad Autónoma de Nuevo León (UANL) - FCFM. Certifications: Advanced Web Development Applications (US-IT), Basic Data Science (Google).
