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Hi there! I'm Gabriel, a backend-focused developer with 2.5 years of hands-on experience building and maintaining web services. I love turning ideas into robust, scalable APIs and collaborating with small teams to deliver end-to-end features. I thrive on learning new tech and improving systems to attract and retain users. I enjoy collaborating in small teams, building scalable systems, and delivering features that users love. I am always eager to learn new tech and improve processes.…Hi there! I'm Gabriel, a backend-focused developer with 2.5 years of hands-on experience building and maintaining web services. I love turning ideas into robust, scalable APIs and collaborating with small teams to deliver end-to-end features. I thrive on learning new tech and improving systems to attract and retain users. I enjoy collaborating in small teams, building scalable systems, and delivering features that users love. I am always eager to learn new tech and improve processes.

Gabriel Madke Santini

Full Stack Developer, Back-End Developer, Web Developer, +4

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Hi there! I'm Gabriel, a backend-focused developer with 2.5 years of hands-on experience building and maintaining web services. I love turning ideas into robust, scalable APIs and collaborating with small teams to deliver end-to-end features. I thrive on learning new tech and improving systems to attract and retain users. I enjoy collaborating in small teams, building scalable systems, and delivering features that users love. I am always eager to learn new tech and improve processes.…Hi there! I'm Gabriel, a backend-focused developer with 2.5 years of hands-on experience building and maintaining web services. I love turning ideas into robust, scalable APIs and collaborating with small teams to deliver end-to-end features. I thrive on learning new tech and improving systems to attract and retain users. I enjoy collaborating in small teams, building scalable systems, and delivering features that users love. I am always eager to learn new tech and improve processes.

Available to hire

Hi there! I’m Gabriel, a backend-focused developer with 2.5 years of hands-on experience building and maintaining web services. I love turning ideas into robust, scalable APIs and collaborating with small teams to deliver end-to-end features. I thrive on learning new tech and improving systems to attract and retain users.

I enjoy collaborating in small teams, building scalable systems, and delivering features that users love. I am always eager to learn new tech and improve processes.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Advanced

Portuguese

Fluent

Spanish; Castilian

Intermediate

Work Experience

CRM System Maintainer & Feature Developer at In-house CRM System

December 1, 2023 - December 1, 2023

Maintained and extended the CRM system, leveraging AngularJS on the frontend and .NET Core with NHibernate on the backend; worked with PostgreSQL; enabled quick CRM actions like contact creation, task assignment, and deal registration; led the development of a cross-platform CRM extension using Flutter and Dart to improve user experience; extension now used by 700+ users.

Backend API Developer – Library Management System at Library Management System (Educational Project)

December 1, 2023 - December 1, 2023

Developed backend API using Node.js and Prisma with authentication and full CRUD for library operations; integrated MySQL/PostgreSQL data handling; enabled book reservations for students and teachers; librarians could manage the entire collection.

Education Project Developer – History-themed Educational Game at Software Factory Scholarship Project

December 1, 2023 - December 1, 2023

Participated in development of a history-themed game to teach chronological events; defined requirements, created mockups, and conducted weekly brainstorming sessions; built core game logic and room/team layouts; implemented key CRUD features in React.js and Tailwind; supported backend integration with Node.js.

Back-End Developer at Self-Employed / CRM System Development

January 1, 2021 - December 1, 2023

Developed and maintained backend services using Node.js/Express and GoLang; implemented CRM backend enhancements including API endpoints for contact creation, task assignment, and deal registration; integrated with WhatsApp API; improved CRM usage and client retention; built features across frontend (AngularJS) and backend to ensure cross-platform compatibility; contributed to system architecture and performance optimizations.

CRM Backend & Affiliate System Developer at Affiliate System Project

January 1, 2022 - December 1, 2023

Developed the entire backend for an affiliate system, separated from the main CRM application. Enabled existing users to refer new CRM users as affiliates and implemented core business logic for referral earnings and affiliate management.

Hands-On Project Lead – Educational Game at Software Factory Scholarship

June 1, 2021 - December 1, 2023

Participated in the development of a history-themed educational game to teach chronological history. Contributed to requirements gathering, mockups, weekly brainstorms, created core game logic and room lists, implemented most CRUD features, and supported backend integration using Node.js; delivered a functional educational tool.

Library Management System – Backend API at Technical Training Project

January 1, 2023 - December 31, 2023

Developed the backend API for a library management system using Node.js and Prisma, including authentication and full CRUD operations against a MySQL database. Enabled book reservations for students and teachers; provided librarians with full control over the collection; integrated with the front-end via REST endpoints.