
Fábio A. Costa
Verified Expert in Engineering
Sitecore Developer
Ribeirao Preto - State of São Paulo, Brazil
Toptal member since June 25, 2025
Fábio is a senior Sitecore architect with over six years of experience delivering scalable, enterprise-grade solutions using Sitecore, .NET, and React. He has led projects across diverse sectors, including government, eCommerce, and digital marketing, focusing on architecture, performance, and clean code practices. Fábio consistently drives high-quality outcomes through thoughtful design and effective leadership.
Portfolio
Experience
- .NET - 6 years
- C# - 6 years
- Azure - 6 years
- Sitecore - 5 years
- JavaScript - 4 years
- React - 4 years
- Sitecore JSS - 4 years
- Architecture - 3 years
Preferred Environment
Visual Studio, Visual Studio Code (VS Code), Windows 11, Docker, Docker Compose
The most amazing...
...accomplishment has been architecting and deploying a global Sitecore solution that revolutionized collaboration for SC Johnson's marketing teams worldwide.
Work Experience
Senior Sitecore Developer
Valtech
- Directed the architecture and delivery of enterprise-grade Sitecore solutions for global clients, including a content hub.
- Designed and developed scalable RESTful APIs integrated with Sitecore and React-based applications.
- Mentored and managed junior developers, performing code reviews and providing technical guidance.
- Implemented unit testing strategies using xUnit and Moq to ensure code reliability and maintainability.
- Automated build and deployment pipelines with Jenkins and Azure DevOps, reducing release times and minimizing errors.
- Deployed and maintained cloud infrastructure on Microsoft Azure for production and staging environments.
- Implemented test-driven development (TDD) and participated in behavior-driven development (BDD) workshops.
- Ensured SEO compliance by optimizing URL structures and applying best practices within Sitecore.
- Collaborated with cross-functional teams within Agile sprint cycles, including UI/UX designers, QA, and stakeholders.
- Drove knowledge sharing through detailed documentation and onboarding support for new team members.
Full-stack Engineer
SmarAPD Informática
- Developed mission-critical systems for Brazilian government agencies, including tax management, inspections, and public safety modules.
- Designed and implemented scalable web applications using .NET Core and React, following modern development standards.
- Built and deployed containerized microservices with Docker and Kubernetes, improving scalability and deployment efficiency.
- Participated in 14-day Scrum sprints, contributing to planning, estimation, and continuous delivery.
- Conducted research on tools and architectural enhancements to improve system performance and team efficiency.
- Applied test-driven development (TDD) and maintained unit test coverage across core modules.
- Directed database optimization for high-load environments by leveraging SQL Server and strategic indexing.
- Integrated modern front-end frameworks such as AngularJS and React to build responsive user interfaces.
- Collaborated closely with public sector clients to translate legislative rules into functional, maintainable code.
- Enhanced CI/CD workflows to accelerate deployments and reduce manual steps in production environments.
Software Developer
Protego Technologies
- Developed high-performance back-end services for a global payment gateway supporting physical and online transactions.
- Designed secure APIs in .NET and Web API 2.0 to integrate with major card networks like Visa and Mastercard.
- Deployed applications on AWS, ensuring scalability, fault tolerance, and high availability.
- Improved CI/CD pipelines using Jenkins, streamlining builds, testing, and deployments.
- Collaborated with operations and product teams to ensure service uptime and efficient troubleshooting.
- Refactored legacy components to align with modern software design patterns and best practices.
- Implemented robust error handling and monitoring features to meet financial compliance standards.
- Streamlined operations by automating internal workflows, removing reliance on email and phone approvals.
- Participated in daily Agile stand-ups and sprint reviews with international teams.
- Supported front-end teams by providing consistent and well-documented RESTful APIs.
.NET Core Developer
DART Digital
- Delivered multiple custom back-end systems using .NET Core and .NET Framework, leveraging MVC architecture and clean code principles.
- Developed data-driven applications for education and food industry clients, integrating Microsoft SQL Server and MySQL.
- Built scalable RESTful APIs using .NET Core 3.1, improving system performance and enabling 3rd-party integrations.
- Architected high-traffic applications leveraging MongoDB to improve flexibility and optimize performance.
- Implemented user interfaces using Razor and React, ensuring responsive, accessible web experiences.
- Contributed to legacy system migration from PHP to .NET, refactoring modules to enhance maintainability.
- Participated in daily Agile ceremonies, sprint planning, and retrospectives with cross-functional teams.
- Utilized Moq for unit testing and coverage validation, ensuring reliability and reducing production bugs.
- Collaborated with clients to define technical requirements and translate business needs into software solutions.
- Maintained and improved CI/CD pipelines and deployment automation using Git and Azure DevOps.
Experience
Pizza Hut Brazil App
https://pizzahut.com.br/Service Hiring Platform for Cara Crachá
Industrial Management System for Alta Mogiana
https://www.altamogiana.com.br/Billing and Delivery Integration Platform
Modern Web Platforms for Brazilian Public Sector
Maintenance and Refactoring of Legacy Government Platform
Dispute Management System for US Banking Client
https://repay.com/Digital Asset Management Platform
https://www.scjohnson.com/enProduct Website Ecosystem
https://www.scjohnson.com/enGlobal Beauty Platform
https://www.maybelline.com/Global Pharmaceutical Platform
https://gsk-on.com.br/Regional Health Services Platform
https://www.baptisthealth.com/Hospital Group Digital Platform
https://www.baystatehealth.org/Pediatric Healthcare Website
https://www.shrinerschildrens.org/enGlobal Hospitality Platform
https://www.mandarinoriental.com/enGlobal Skincare Platform
https://www.cerave.com/Beauty & Cosmetics Experience
https://www.essie.com/Education
Bachelor's Degree in Information Technology
Moura Lacerda University Center - Ribeirao Preto, Brazil
Certifications
Certified Sitecore Developer
Sitecore
Skills
Libraries/APIs
React, Node.js, Moq, Web API 2, SOAP APIs, Vue 3
Tools
Microsoft Copilot, Visual Studio, Docker Compose, RabbitMQ, Jenkins, Amazon Simple Queue Service (SQS), Helix, Adobe Experience Manager (AEM)
Languages
SQL, JavaScript, C#, C#.NET, CSS, TypeScript, Java, PHP, HTML
Frameworks
.NET, Sitecore JSS, ASP.NET, Sitecore Experience Accelerator (SXA), MVC Razor, .NET 2, .NET 3, Razor, Angular, Entity, Redux, ASP.NET MVC, Next.js
Platforms
Azure, Visual Studio Code (VS Code), Docker, Oracle, Kubernetes, AWS Lambda, AWS IoT, Sitecore Experience Manager Cloud (XM Cloud), Google Cloud Platform (GCP), Amazon Web Services (AWS)
Paradigms
Web Architecture, Unit Testing, Scrum, Kanban, Test-driven Development (TDD), REST, Agile
Storage
MSSQLCE, MySQL, PostgreSQL, MongoDB, SQL Server 2019, IIS SQL Server
Other
Domain-driven Design (DDD), Sitecore, Sitecore CLI, Full-stack, Full-stack Development, Architecture, Windows 11, .NET Framework, Web MVC, CI/CD Pipelines, RESTFul APIs, Sitecore Content Hub, Azure CLI, Scrumban, SEO Tools, Back-end, Sagas, API Gateways, Performance, Legacy Software, Financial Data, Sitecore Content HUB, Sitecore Helix, Sitecore Headless, Containerization, API Integration
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