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Alejandro Mendoza Gertie

@alejandromendozagert

Message

Junior Backend Developer building transactional banking APIs with SQL and financial systems experience.

Canada

Message

What I'm looking for

I’m looking to grow within enterprise environments, contributing to application development, system integrations, and the continuous improvement of banking systems.

I’m currently focused on backend development after working in banking operations and financial systems. My experience includes building transactional APIs and working with relational databases where data integrity and consistency matter.

For my Banking API personal project, I developed an API simulating accounts, transfers, and balances. I implemented transactional logic and designed relational database models for financial operations.

At Walmart Canada, I analyzed and validated financial and operational data and supported accounting processes. Earlier, at Banco Santander Argentina, I managed transactions and reconciliations and resolved operational inconsistencies.

Experience

Work history, roles, and key accomplishments

Claims, Accounting and Office Support Associate

Walmart Canada

Jan 2025 - Jan 2026 (1 year)

Analyzed and validated financial and operational data, supported accounting processes ensuring accuracy and consistency, and performed data reconciliation and issue resolution.

Data Analysis Data Validation Accounting Data Reconciliation Problem Solving

Senior Teller / Operations and Customer Service

Banco Santander Argentina

Jan 2012 - Jan 2021 (9 years)

Managed financial transactions and reconciliations, validated data in high-volume critical environments, and detected and resolved operational inconsistencies.

Financial Transactions Reconciliations Data Validation Banking Systems Operations