Looking for a job

Tomás García del Hoyo

@tomsgarcadelhoyo

Message

I build scalable .NET backend systems, APIs, and financial platforms with SQL Server.

Argentina

Message

What I'm looking for

I'm open to remote opportunities with international teams where I can build scalable .NET backend systems, APIs, and reliable financial or enterprise platforms.

At AFIP, I build enterprise CRM systems using .NET, SQL Server, and REST APIs, supporting complex tax and business rules while improving production performance and reliability.

I've also led backend development for high-volume payment and invoicing systems at SEAC S.A., including SUBE recharge integration, and built ERP, accounting, logistics, and laboratory systems across earlier roles.

Experience

Work history, roles, and key accomplishments

Current

Systems developer engineer

Current

AFIP

May 2019 - Present (7 years 6 months)

• Development of enterprise CRM systems for different business areas within AFIP.
• Backend development using .NET / .NET Core and SQL Server.
• Design and implementation of REST APIs and integrations with external systems.
• Participation in full development lifecycle: analysis, design, development, testing and implementation.
• QA automation and functional analysis for complex systems.

Key achi

.NET Framework .NET Core C#ASP.NET Core Microsoft SQL Server Pl SQL T SQL Vue.Js JavaScript jQuery AJAX Capacidad de análisis Desarrollo De Software Desarrollo web Full Stack

Senior Software Developer

SEAC S.A.

Jun 2015 - May 2019 (3 years 11 months)

• Technical leadership and backend development for enterprise systems.
• Development and maintenance of high-volume transactional systems (payments, invoicing, and integrations).
• Integration with external services including payment platforms (Banelco) and SUBE systems.
• Database optimization and performance improvements in SQL Server.
• Development of WebServices and support for external client

Desenvolvimento Ágil Knowledge Acquisition Dependency Injection Object Oriented Programming Postman API Desarrollo Front End Git Responsiveness Feedback Constructivo

Developer Analyst

Grupo Altecno

Sep 2009 - Jun 2015 (5 years 9 months)

• Development of ERP and administrative systems using .NET and SQL Server.
• Design and implementation of business systems for different industries.
• Full lifecycle participation: requirements gathering, development, testing and deployment.

Key achievements:
• Led development of multiple business-critical systems.
• Built custom solutions for accounting, logistics and laboratory systems.

Techno