Diego Mendez

Full-stack Developer

Personal portfolio

Full-stack software to modernize critical systems.

Experience in migrations, automation, and clean architecture. Focused on performance, stability, and best practices.

Current focus

Performance

Backend performance in SQL Server: indexes, temp tables, and execution plans.

Modernization

Safe migrations: Angular to React, .NET Core to .NET 8.

Automation

CI/CD pipelines and repetitive tasks with Azure DevOps.

About

Full-stack software developer with experience in SQL, NoSQL, .NET Core, Python, and JavaScript (React, Vue, Angular, Node.js). Currently working at SONDA S.A. on critical systems modernization. Strong focus on automation, clean architecture, and best practices. Interested in evolving into a Tech Lead role and automation reference.

Skills

Languages

JavaScriptPythonC#JavaPHP

Frameworks

ReactVueAngularNode.js.NET CoreFastAPISpring Boot (in progress)

Databases

SQL ServerPostgreSQLMySQLMongoDB

DevOps

Azure DevOpsJenkinsDockerGitCI/CD pipelines

Integrations and automation

REST/SOAP APIsRPAScriptingSSH connections

Other

Data SciencePBX Telephony (Asterisk)Office SuiteContawinApplied statistics

Projects

Professional (anonymized)

License Plate Capture

Capture and validation of supplier plates with operational reporting.

Modernization, faster workflows, and a clearer frontend.

.NET Core 2.1 -> .NET 8Angular 7 -> React 20SQL Server

Critical Case Management

End-to-end case management with reporting and custom flows.

Tech refresh and a solution tailored to client needs.

Java -> Node.jsVue 2PostgreSQL

Personal

Savings Planner

Personal savings management app with charts.

Mixed-currency savings plans with a live USD exchange API.

Python

Camelia Cafe

Cafe checkout app focused on fast billing.

Daily operations for sales, totals, and closures.

Python

Experience

Developer experience: Sep 2022 - Present (3 years 4 months)

Software Developer 2

SONDA S.A.

Jul 2023 - Present (2026)

Critical systems modernization: Angular 7 to React, .NET Core 2.1 to .NET 8, and Java modules to Node.js. SGSP integrations, SQL Server/PostgreSQL reports, and Azure DevOps pipelines.

HelpDesk Analyst

Synapsis S.A.

Sep 2022 - Jul 2023

Process automation, PBX Asterisk support, and L1/L2 incidents. MySQL and SSH on Linux servers.

Cashier / Head Cashier

Mercados Devoto S.A.

Feb 2020 - Jul 2022

Stock, cash desk, and goods reception supervision. Team leadership to meet commercial goals.

Merchandiser / Collector / Sales

Macri LTDA

Oct 2016 - Apr 2019

Collections, sales, and merchandising. Support for sales and customer retention.

Education and certifications

  • Spring Boot (in progress) - Backend and microservices.
  • IBM - Data Analysis with Python (2023).
  • IBM - Python for Data Science (2023).
  • Cisco - Introduction to Cybersecurity.
  • Escuela BIOS Sistemas - PHP Course (2021).
  • Escuela Interamericana de Ciencias Informaticas - Professional Web Design (2010-2011).

Contact

Direct contact for opportunities and collaborations. Reply within 24-48h.