Open to opportunities

Gaston Duarte

@gastonduarte

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Software developer specializing in scalable backend systems with full-stack experience.

Paraguay

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What I'm looking for

I am looking for a role building scalable, secure web systems where I can contribute to backend and full-stack development, work with microservices and databases, and grow through collaborative, impact-driven projects.

I am a software developer focused on building scalable, secure, and efficient web solutions using Python, JavaScript, and Go. I have hands-on experience across backend and frontend development, working with SQL/NoSQL databases, REST APIs, microservices architectures, and automated testing.

I have delivered production systems and internal platforms, including a pre-sales web platform with payment gateway integration and a distributed logging system using FastAPI and PostgreSQL. I participate in real-world projects and hackathons, applying modular design, security best practices, and continuous collaboration with business teams.

I seek to contribute reliable, well-tested code and to grow through challenging projects that value clean architecture, teamwork, and measurable impact.

Experience

Work history, roles, and key accomplishments

Current

Software Developer

Current

Kemsa CISA

Dec 2025 - Present (2 months)

Developed an internal web platform to automate pre-sales processes, implemented backend logic and structured data handling, and integrated Bancard QR-based payments for production use by commercial teams.

Python JavaScript fastAPI REST APIs PostgreSQL Docker Microservices

Data Migration Specialist

Metiri S.A.

Dec 2024 - Apr 2025 (4 months)

Performed data cleaning and preparation for migration processes, provided client training on HR management software, and delivered technical support for internal systems.

Data Cleaning SQL HR Software Technical Support Python Documentation ETL

IT Intern

Automaq S.A.E.C.A.

Jun 2024 - Aug 2024 (2 months)

Supported the transition from SAP R/3 to SAP S/4HANA and executed end-to-end tests within the CS module to validate system functionality.

Testing End To End Testing QA Documentation Support SQL

Database Technician

Sixt Paraguay

Oct 2022 - Mar 2023 (5 months)

Performed database updates and maintenance, trained employees on internal systems, and managed invoice control and budget tracking.

Database Management PostgreSQL Budgeting Invoicing SQL Internal Tools

Administrative Assistant

Banco Itaú Paraguay S.A.

Apr 2021 - Apr 2022 (1 year)

Provided administrative support in finance, managed procurement intake and merchandise tracking, and coordinated with suppliers to streamline operations.

Procurement Administrative Support Finance Operations Excel