Edgar Macías

Senior Backend Engineer | Distributed Systems & AI-First Architecture

Specialist in Cloud-Native Architecture, Scalability and Security-by-Design

8+ years of experience designing and optimizing high-impact distributed systems. Focused on building scalable data processing engines, event-driven architectures, and AI-First solutions, ensuring performance and robustness.

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Impactful Experience

Senior Software Engineer / Tech Lead

UNAM (National Autonomous University of Mexico)

2018 - Present

Technical leadership in the development of critical platforms for university management, impacting thousands of users.

Development of scalable systems managing data for over 300,000 students.

Successful migration of legacy databases with millions of records, ensuring integrity and zero downtime.

Implementation of Security-by-Design architectures and SAST/DAST automation in CI/CD pipelines, ensuring reliability at scale.

Optimization of administrative processes, reducing response times by 60%.

The Journey From Academia to Cloud-Native Architecture

2015

Software Engineering & Legacy Architecture

Career Start

Designed and implemented a rules engine for critical certification processes.
Ensured 100% accuracy in official document issuance.
Optimized workflows using Symfony and AngularJS.

PHPPHPUnitSymfonyAngularJS

2019

Modernization & Scaling of Critical Systems

Complexity Management

Dockerized legacy systems to prioritize operational continuity.
Refactored obsolete code, significantly reducing technical debt.
Managed high-concurrency traffic during enrollment periods.

PostgreSQLPythonDockerNext.jsNestJS

2020

Full-Stack Mobile Development (Freelance)

Tech Expansion

Developed a complete mobile app for a taxi service.
Integrated cloud backend with Google Maps API and geolocation.
Led the full cycle from architectural design to deployment.

Flutter (Dart)Cloud FirebaseNoSQLGoogle Maps API

2021

Data Migrations & Custom Tools

Technical Depth

Migrated critical database from SQL Server to PostgreSQL with zero data loss.
Developed custom ETL in PHP ensuring record integrity.
Automated validation and cleaning of millions of academic records.

PostgreSQLPythonETL CustomSQL Server

2023

Technical Leadership & Distributed Systems

Transition to Seniority

Led agile teams in developing microservices-oriented platforms.
Designed scalable architectures ensuring high availability and data consistency.
Integrated Security-by-Design principles and advanced observability across the stack.

Node.jsGoMicroservicesObservability

2025