Open to opportunities

Mario Herrera

@marioherrera3

Message

Backend software engineer building scalable production systems and automation workflows.

Panama

Message

What I'm looking for

I’m looking for backend engineering roles where I can collaborate with experienced teams and keep building scalable production systems—especially in industrial workflow automation and real-world operational software.

I’m a backend/software engineer focused on backend systems and industrial workflow automation. I designed and implemented a Manufacturing Execution System (MES) used in daily production operations, improving efficiency by 30–50% and reducing production errors by ~90%.

I build real-world applications with NestJS, React, PostgreSQL, and cloud deployments—delivering backend services for concurrent workflow state tracking, real-time production monitoring dashboards, and automatic workload balancing across operators. I’m also experienced coordinating ERP implementations and serving as a bridge between business operations and technology solutions.

Experience

Work history, roles, and key accomplishments

Current

Automation / Software Engineer

Current

Empresas Carosi S.A.

Jan 2025 - Present (1 year 5 months)

Designed and implemented a Manufacturing Execution System (MES) to manage production workflows and operator tasks. Built NestJS + PostgreSQL backend services with workload balancing and real-time React monitoring, reducing production errors by ~90% and improving operational efficiency by 50%.

NestJS PostgreSQL TypeScript React REST APIs Workload Balancing Algorithms Semantic Versioning

IT Manager

Aceros y Modulares S.A.

Jan 2023 - Jan 2025 (2 years)

Managed the company’s technology infrastructure and coordinated digital system initiatives, including the SAP Business One ERP implementation. Acted as a liaison between business operations and technology solutions to align requirements and delivery.

SAP Business One ERP Implementation Windows Server MSSQL Business IT Liaison