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Hello! I am Marco Antonio Baltazar Santos, a software engineer with 6+ years of experience in commercial software development. I specialize in web and mobile applications from the design and development of scalable and robust frontend and mobile solutions. I am eager to learn new technologies.…

Marco Antonio Baltazar Santos

Full Stack Developer, Back-End Developer, Web Developer, +2

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Hello! I am Marco Antonio Baltazar Santos, a software engineer with 6+ years of experience in commercial software development. I specialize in web and mobile applications from the design and development of scalable and robust frontend and mobile solutions. I am eager to learn new technologies.…

Available to hire

Hello! I am Marco Antonio Baltazar Santos, a software engineer with 6+ years of experience in commercial software development. I specialize in web and mobile applications from the design and development of scalable and robust frontend and mobile solutions.

I am eager to learn new technologies.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Intermediate

Work Experience

Mobile App Engineer at Ganatech

January 1, 2024 - Present

Contract Mobile App Engineer working on a fintech wallet app, responsible for creating new features and client requirements. Worked on iOS and Android to ensure cross‑platform functionality, delivering a highly reliable mobile application for users.

Software Engineer (Contractor) at Körber Supply Chain

January 31, 2024 - September 25, 2025

Involved in the development of Data Warehouse System Application and Transportation Management System, responsible for business logic improvements and integration, implemented a progressive mobile app to perform real‑time transactions.

Mobile App Engineer at Jalasoft

January 31, 2022 - September 25, 2025

Led the development of a mobile app connecting professionals with job opportunities, featuring real‑time push notifications. Users could rate performance, manage contacts, and enjoy seamless data updates on Android and iOS devices.

Software Engineer at Jalasoft

September 30, 2020 - September 25, 2025

Managed tech events, led integration with social media apps (Facebook and Google login) using React Redux Toolkit and TypeScript; implemented auth features with microservices; built frontend forms using Apollo Client, and added integration tests and unit tests with Jest; refactored a backend logging library using C#.NET GraphQL.

Software Engineer at Fundación Jala

March 31, 2019 - September 25, 2025

Built a web application to track and monitor teams, integrated with Slack and GitLab; added test suites with Jest, end‑to‑end tests; used React, JavaScript, TypeScript and Material UI; developed backend functionalities; implemented RESTful API endpoints to create, read, update and delete information.

Software Engineer at ScienceLogic

May 31, 2020 - September 25, 2025

Assisted in data migration for a project, converting device data from a Python‑based system to React and TypeScript; trained new developers; implemented Data Loaders to optimize performance; added integration tests and snapshots; implemented advanced search with filters; developed GraphQL queries and mutations using GraphQL, C#, and .NET for database access.