Elton Fonseca - Professional Portfolio

Complete consolidated summary of all experiences, projects, and educational content.

Roles

  • Contributed to the design and development of an integrated healthcare platform for behavioral health organizations.
  • Built and maintained modules for clinical documentation, scheduling, CRM, and billing.
  • Managed the full developer lifecycle, including hiring, onboarding, performance evaluations, and 1-on-1s.
  • Structured tasks, enforced quality standards via code reviews, and managed technical escalations.
  • Ran AI workflow training sessions and organized knowledge-sharing demos for developers.

Technical Skills

  • Laravel best practices, RESTful API design, and Pest PHP for parallel test execution.
  • HIPAA compliance, EHR, scheduling, and financial management including claims.
  • Implementing and documenting MCPs like Jira, Sentry, and Laravel Boost.
  • Organizing artifacts into rules and skills to enhance AI workflows.

Soft Skills

  • Proactive risk anticipation, early stakeholder communication, and mitigation planning.
  • Disciplined delivery and cross-functional collaboration across front-end, back-end, and infrastructure.
  • Bringing order to chaos within an existing team by creating visibility with boards and filters.

Challenges

  • Ensuring the secure handling of sensitive patient data and strict compliance with healthcare regulations.
  • Bringing order to chaos in an existing team while structuring their visibility and tasks.
  • Leveraging an extensive technical background to build momentum and demonstrate how a massive amount of work was accomplished within just a single year.
F
Freelance - Full-Stack Developer
Experience

Roles

  • Managed projects from initial contact to final product delivery for international clients across various fields.
  • Built B2B software, internal tools, financial integrations, and institutional websites.
  • Maintained B2B software processing around $5 million in monthly orders and developed payment integration modules for European merchants.
  • Created and maintained production environments using Linux servers.

Technical Skills

  • PHP, WordPress, Laravel and its ecosystem packages.
  • MySQL, JavaScript, and AWS products.
  • Full lifecycle of software development.
  • Linux server administration.

Soft Skills

  • Entrepreneurial approach involving selling solutions and making decisions.
  • Shipping high-quality tasks autonomously without supervision.
  • Working directly with clients to translate their needs into working solutions.
  • Flair for working directly with end users and remaining highly client-focused.

Challenges

  • Continuously learning new technologies to adapt to very different types of projects.
  • Handling the full project lifecycle independently, from initial client contact to shipping the final product without supervision.
T
TreinaWeb - Team Leader
Experience

Roles

  • Plan short- and medium-term content strategies
  • Plan and distribute tasks among team members
  • Review both free and paid content
  • Conduct presentations and sales to corporate clients
  • Define sales strategies in collaboration with the marketing team
  • Manage the implementation of marketing strategies with the team
  • Monitor results
  • Define student success strategies and manage their implementation with the team
  • Monitor student satisfaction

Technical Skills

  • Insight into other ecosystems such as React, Node, and Spring
  • Marketing concepts and practices
  • Concepts and practices about customer and student success

Soft Skills

  • Humanely manage people, understanding their difficulties, challenges, and potential
  • Make decisions based on multiple aspects
  • Guide and assist in solving daily business problems

Challenges

  • Have a broad vision of the entire company
  • Maintain a healthy work environment
  • Keep the company relevant and profitable
T
TreinaWeb - Software Instructor
Experience

Roles

  • Plan and create courses
  • Answer students' questions
  • Write technical posts
  • Record content videos for YouTube
  • Record advertisements related to courses

Technical Skills

  • PHP from fundamentals to advanced aspects and object-oriented programming
  • Laravel from beginner to advanced, covering details such as Blade, Eloquent, request and response, middleware, validation, session, authorization, starter kits, exception handling, logging, Service Container, Service Provider, Facades, APIs, among others
  • Symfony and Doctrine
  • Database modeling and design, with experience in MySQL, MSSQL, PostgreSQL, and Oracle
  • HTTP and REST
  • Cloud computing (AWS and Google Cloud Platform)
  • Tailwind
  • WordPress theme and plugin development

Soft Skills

  • Research and learn new technologies in a structured manner
  • Help people solve technical problems
  • Be empathetic and understand that not everyone learns at the same pace

Challenges

  • Being open to studying and learning new things constantly
  • Teaching students how projects are developed in real companies
  • Conveying content in the simplest way possible

Roles

  • Support for end users via remote and on-site assistance
  • Server and network maintenance
  • Configuration and maintenance of Linux and Windows servers

Technical Skills

  • Windows and Linux operating systems
  • Command-line interface proficiency
  • Technical understanding of how networks and the Internet work
  • Configuration of services on Linux servers, such as Samba, FTP, DHCP, proxy, firewall, and others

Soft Skills

  • Teamwork
  • Communication for online or on-site client support
  • Understanding and resolving complex technical issues
  • Handling emergencies involving essential business systems

Challenges

  • Difficulty finding quality technical content back then
  • Slow connection to watching video lessons (purchased several courses on CD)
  • Lack of experience at the beginning, as it was my first job

The professional who graduated from this course is crucial in project design, software production, team coordination, and system lifecycle management. They select and apply appropriate technologies, methodologies, and tools in software engineering, ensuring robust education. With expertise in software development principles and quality attributes like functionality and security, they integrate hardware knowledge and network infrastructure proficiency to deliver innovative, socially and environmentally responsible computerized solutions.

The MBA in Software Architecture and Engineering is designed for IT professionals in commercial software development. The course emphasizes structured methods and techniques for delivering high-quality software, introducing key concepts in Software Engineering to make the development process predictable and manageable. It also focuses on Software Architecture, teaching the students to design and maintain integrated, scalable, and robust systems.

Development of the admin panel and website where users can register products, categories, and, edit site content. This project has undergone three major refactors and I am working in a new version.

Stack

  • V1: Pure PHP (2012)
  • V2: CodeIgniter (2013)
  • V3: Laravel (2016 - present)
  • V4: Laravel, Livewire, Filament (2024 - developing)
  • MySQL
  • HTML, CSS, and JS (jQuery)
  • Server:
    • V1 and V2 - Shared Host
    • V3 - VPS with Server Pilot
    • V4 - fly.io

Challenges

  • Lack of experience when creating the first version
  • Browser compatibility in versions V1 and V2
  • Work in different screen sizes with tableless in V3

Integrated with the company's internal ERP, this project allows sales representatives and partner companies to manage sales orders. The project includes complex business rules, real-time tax calculations, various reports with export options in different formats, and a dashboard to monitor key information through graphs.

Stack

  • Laravel
  • MySQL (ERP legacy database)
  • HTML, CSS, JS (jQuery)
  • Integration with business-related APIs
  • Automated deployment with PHP Deployer
  • Virtual Machine Linux on Azure (manually installed)
  • Virtual Machine Linux on Digital Ocean (manually installed)

Challenges

  • Maintaining a healthy system for over 10 years amidst constantly changing business rules
  • Understanding business rules and processes in an unmapped environment
  • Working with the legacy ERP database
  • Implementing and maintaining tax calculations, given Brazil's complex tax legislation
  • Ensuring SLA for a critical system generating over $5 million in orders each month

This system automatically notifies clients via email about upcoming and overdue invoices. Clients can access the system to generate updated invoices with calculated interest and penalties. The system tracks all sent emails, including receipt, opening, and clicking, with the data used by the finance department.

Stack

  • Laravel
  • Mailgun as the mail provider
  • MySQL (ERP legacy database)
  • HTML, CSS, and JS (jQuery)
  • Automated deployment with PHP Deployer
  • Server 2: Virtual Machine Linux on Digital Ocean (manually installed)

Challenges

  • Tracking sent emails via Mailgun
  • Standardizing the timing for email notification
  • Configuring the production server to handle queues properly
  • Using the legacy ERP database to obtain all necessary information

This project allows the creation of identified or anonymous complaints. The system facilitates communication among all parties involved in a complaint, with notifications for each update.

Stack

  • Laravel
  • Livewire
  • Filament
  • MySQL

Challenges

  • There were no major challenges; working with a new application using Livewire, Filament, and a database structured according to Eloquent was extremely enjoyable
I
Inflight IT
Project

Projects

WordPress Customizable Theme

Development of a theme that allows customization for different types of websites, such as e-commerce, catalogs, and institutional sites.

WordPress Websites

Development of various websites using the theme described above or custom themes. Some examples: Go4Tours, Joltex, História OA

WordPress Integrations

Integration between WooCommerce and internal ERPs for product and inventory updates via API and webhooks.

Challenges

  • Working with WordPress using object-oriented programming and maintaining long-term code sustainability.
  • Collaborating effectively with people from different countries and cultures.
C
Coolsis LTDA
Project

Projects

Magento Payment Module, Prestashop Payment Module, and WooCommerce Payment Plugin

Developed for Payshop Portugal, these projects support four different payment methods. They include integration with the payment gateway API and the internal admin interface for merchants.

Challenges:

  • Learning to work with each e-commerce platform's unique programming approach.
  • Using best practices and object-oriented programming across different platforms.
  • Magento's high complexity, verbose code, and extensive use of XML.
  • Prestashop's extremely poor documentation.
  • WooCommerce running on WordPress, which presents its own challenges.
  • Ensuring adherence to security and compliance standards.

Pay By Link

Developed for Payshop Portugal, this project allows users to make payments via a link. Integrated with the payment gateway and internal API, the system complies with all security and compliance regulations.

Stack

  • Laravel
  • HTML, CSS, and JS

Challenges:

  • Working with HTTP APIs with limited documentation.
  • Ensuring adherence to security and compliance standards.

PHP Posts

Laravel & Symfony

"We have worked with Elton for over 10 years on various projects, and we have always been very satisfied. He is a very attentive, understanding, and focused professional, extremely concerned with achieving results."
— Daniel Ramos
Technology Manager at Opergel Foods
"It has been our pleasure to work with Elton for about 4 years. He is an exemplary professional with exceptional clarity in communication, total dedication, and availability. With Elton, we have the confidence to deliver a project, and rest assured, as he is autonomous, an excellent communicator, and an extraordinary professional."
— César Cardoso
Co-founder of Inflight IT

Presentations Given:

  • Symfony - Ecosystem
  • The Importance of English for IT Professionals
  • Discussion on the IT Market in Europe and Brazil

Events Attended:

  • PHP Meetup São Paulo (various editions)
  • Community Summit (various editions)
  • SymfonyLive Brasil 2019
  • RubyConf Brazil (various editions)
  • Locaweb Meeting (various editions)