Sandro Gumz

Sandro Gumz

Software Engineer

Bachelor of Computer Science (2012) with 15 years of experience in analyzing, design and WEB development on mobile and desktop platforms.

#web #php #laravel #wordpress #js #angular #react #flutter #ios #android #git #aws #scrum #agile

💼 LinkedIn
linkedin.com/in/sgumz
📧 Email
sgumz@me.com
📱 Mobile
+61 405 712 202
Websites
Professional with 15 years of experience in WEB development focus on Object-oriented programming.
Laravel
Full API endpoint project and website using Laravel Framework.
Wordpress
Creation of more than 70 WordPress templates, websites and shops for companies, integrated with payments system and post office.
Mobile dev.
Independent development of hybrid applications for iOS and Android using React Native and Flutter.
Amazon & Vapor
Experience with Amazon APIs (EC2, SNS, RDS, CloudFront, S3 and Router 53) for websites and applications, and Laravel Vapor deployment.
2016
Graduate Studies Specialization in Teaching in Higher Education.
Pós Graduação EAD Uniasselvi, EAD UNIASSELVI, Brazil.
2013
College Degree Computer Science
Universidade para o Desenvolvimento do Alto Vale do Itajaí, UNIDAVI, Brazil.
2012
Bachelor’s Degree Information Systems
Centro Universitário Leonardo da Vinci, UNIASSELVI, Brazil.
TreinaWeb Br.
Laravel.
TreinaWeb Br.
PhoneGap - Apache Cordova Mobile Framework.
TreinaWeb Br.
Advanced PHP.
Advance Treinamentos
Advanced Typing and Microsoft Excel.
Advance Treinamentos
CorelDraw, Photoshop, HTML and CSS.
Orange Digital, Brisbane QLD, Australia.
2023 - now
As a Full Stack WEB Developer, I specialize in creating robust solutions using Laravel and WordPress, including Advanced Custom Fields (ACF) and WordPress Multisite configurations.
Project Highlights
  • Laravel: Developed backend APIs for banking applications, focusing on business and personal loan management, as well as tax computation and reporting to the Australian Taxation Office (ATO).
  • WordPress: Engineered custom plugins and extensions, and designed a new platform to accelerate deployment processes for new clients, enhancing efficiency and scalability.
Digital8, Brisbane QLD, Australia.
2020 - 2023
WEB development focused on API integration, and system architecting
Details
  • Laravel: Getting client requirements, Architecting Frontend and DB, and coding with dev. team: integrations with Xero, AusPost, Shopify, Netsuite and Omnisend.
  • Wordpress: Custom plugin development, migrations/upgrades, code implementation referencing, and user subscription management.
  • Custom PHP: Ecommerce based on PHP Symfony integrating with Algolia, Braintree, Nosto, Yotpo.
  • iOS and Android: Project based in Angular/Flutter with Firebase. Using notifications, Bluetooth Firmware updates, and Geolocation tracking.
Centro de Educação Profissional de Timbó, CEDUP TIMBÓ, Timbó - SC, Brazil.
2014 - 2019
Programming JAVA, DB, Web Programming (PHP), Information Systems and Delphi Teacher
Other information
Development completion of projects with students and teachers in the disciplines of computer science course.
JFSites Website Development, JFSITES, Timbó - SC, Brazil.
2012 - 2015
Full Stack WEB Developer
Other information
Development of solutions for information disclosure with high availability using PHP.
Installation and maintenance of CentOS servers for hosting with security and high availability and mass distribution of the solutions created.
Decisions on solution design.
Elementary School Professor Emir Ropelato, EEF PROF. EMIR R, Timbó - SC, Brazil.
2009 - 2016
Technology Room Teacher
Other information
Educational computing: children from 1st to 9th grade learning from simple graphic creations, to school work based on ABNT, stimulating their creative and exploratory side in a Linux environment.
Development of a program to solve the problems with schedules of school rooms and equipment, with teachers and students. Project implemented in more 300 schools in Brazil currently.
🇧🇷 Portuguese
Native
🇦🇺 English
Independet user
I have high skills with calculations, mathematical problems and logic. I was awarded nationally for these skills.
🥉 2007
Bronze Medal, Brazilian National Mathematics Olympiad - OBMEP
🎖 2006
Honorable Mention, Brazilian National Mathematical Olympiad - OBMEP
🥇 2001
Gold Medal, Brazilian National Astronomy Olympiad - OBA

Personal Portfolio

Below is a selection of my personal projects.



Raw to HEIC
iOS / iPadOS / macOS

Convert RAW images to HEIC right inside the Photos app — up to 10× smaller while keeping edits, metadata, and album organization. On-device processing, Share-sheet integration, batch conversion with Live Activities, and a 30-day safety net for deleted originals.
Native Swift; Universal binary (Apple silicon + Intel). Own design + development.
Download on the App Store
Raw to HEIC app screenshot Raw to HEIC app screenshot Raw to HEIC app screenshot Raw to HEIC app screenshot Raw to HEIC app screenshot


Ciao Ciao Café
POS / Stripe Terminal / Web

A complete point-of-sale and digital loyalty platform for a café trailer. Baristas take orders and card payments on a Stripe Terminal reader (WisePOS E); customers collect stamps toward free coffees, with their loyalty card living in Apple Wallet & Google Wallet and updating in real time via push the moment a stamp is added. Includes a customer web dashboard, magic-link sign-in, and a Laravel Nova admin for menu, promotions and sales reporting.
Own design + development. Backend: Laravel 11 / PHP 8.2 on AWS (SES, SNS, S3); Stripe Terminal card-present payments; Apple & Google Wallet passes; Tailwind + Vite frontend.
Visit website
Ciao Ciao Café POS order screen Ciao Ciao Café POS menu and order customisation Ciao Ciao Café POS order in progress Ciao Ciao Café POS customer lookup Ciao Ciao Café POS checkout Ciao Ciao Café loyalty card on the iPhone lock screen Ciao Ciao Café loyalty card in Apple Wallet Ciao Ciao Café order on iPhone


Peanutty
iOS / Android

Keep track of your pet's daily care with ease. Share responsibilities with family and never miss important activities with timely reminders.
Own design + development. Backend in Firebase + Firestore; Frontend in Flutter (Dart) & Swift (iOS) for the Widgets
Visit website
Peanutty app screenshot Peanutty app screenshot Peanutty app screenshot Peanutty app screenshot Peanutty app screenshot Peanutty app screenshot


Agenda X
iOS / Android / WebApp

Manage your spaces efficiently: teacher and students can book and manage their spaces at schools and classes.
Own designs + API development.
Hosting: AWS Vapor; API Laravel PHP 8.4. Available now
Frontend: React Native;
Agenda X app screenshot Agenda X app screenshot Agenda X app screenshot Agenda X app screenshot Agenda X app screenshot Agenda X app screenshot Agenda X app screenshot Agenda X app screenshot Agenda X app screenshot


Edna II
iOS / Android + Site

Streamline project management efficiently: track projects, milestones, and team progress in one place. Stay updated and make informed decisions. Collaborate seamlessly with your team.
Own designs + API development.
Hosting: AWS Vapor; API Laravel PHP 8.2.
Edna II app screenshot Edna II app screenshot Edna II app screenshot Edna II app screenshot Edna II app screenshot


Minus 4k
iOS Angular App

Empowering CoinSpot users to gauge coin profitability. Tracking value fluctuations, solving my own need. A portfolio addition born of practicality.
Own designs + development.
Test it now
Minus 4k app screenshot Minus 4k app screenshot Minus 4k app screenshot Minus 4k app screenshot Minus 4k app screenshot Minus 4k app screenshot


Agenda1
iOS / Android / Web

Application: Full own development, Ionic Framework, own design, I solved a problem with the schedules of the students and teachers of the schools: to schedule tasks and works of collaborative way and reservation of rooms and equipment for teachers. Today, the project serves more than 300 schools in Brazil at a low cost.
Hosting: AWS EC2; Site and API: PHP 5
Agenda1 app screenshot Agenda1 app screenshot Agenda1 app screenshot Agenda1 app screenshot Agenda1 app screenshot Agenda1 app screenshot Agenda1 app screenshot Agenda1 app screenshot Agenda1 app screenshot


Bee Pontos
iOS / Android

Application: development in Ionic 3, compiled for Android and iOS, own design, solve a problem with loyalty points cards between companies and customers, punctuating online customers and redeem when reaching the goal.
Site: System Administrator in PHP 7, site in Gulp.
Bee Pontos app screenshot Bee Pontos app screenshot Bee Pontos app screenshot Bee Pontos app screenshot Bee Pontos app screenshot


Professor360
PHP Website

Application: Full own development, in this platform the professor can publish notes by average of evaluations or by competences, frequencies of the students and contents worked in room. The administrator system you can create new courses, enroll students in classes and manage the students academy life.
Hosting: AWS EC2; Site and API: PHP 7.
Professor360 screenshot Professor360 screenshot Professor360 screenshot Professor360 screenshot Professor360 screenshot


Peanuty Stickers
Swift APP

Meet Peanut 🐾 a lovable Australian Blue Staff.
Express yourself with Peanut's emotions: angry, sleeping, tired, happy stickers.
Download free
Peanuty Stickers screenshot Peanuty Stickers screenshot