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I'm Saulo Mendes, a Senior .NET Engineer with 20+ years of experience delivering scalable backend systems, cloud-native architectures, and real-time processing solutions. I'm a leader in large-scale migrations and performance optimizations, having guided zero-downtime transitions at Worldpay and reduced infrastructure load by 30% at VSoft through distributed messaging with RabbitMQ, Apache NiFi, and Redis. I specialize in .NET 6/7/8, Clean Architecture, Azure DevOps CI/CD, and full-stack delivery across Angular, Vue.js, and Blazor.…I'm Saulo Mendes, a Senior .NET Engineer with 20+ years of experience delivering scalable backend systems, cloud-native architectures, and real-time processing solutions. I'm a leader in large-scale migrations and performance optimizations, having guided zero-downtime transitions at Worldpay and reduced infrastructure load by 30% at VSoft through distributed messaging with RabbitMQ, Apache NiFi, and Redis. I specialize in .NET 6/7/8, Clean Architecture, Azure DevOps CI/CD, and full-stack delivery across Angular, Vue.js, and Blazor.

Saulo Mendes

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

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I'm Saulo Mendes, a Senior .NET Engineer with 20+ years of experience delivering scalable backend systems, cloud-native architectures, and real-time processing solutions. I'm a leader in large-scale migrations and performance optimizations, having guided zero-downtime transitions at Worldpay and reduced infrastructure load by 30% at VSoft through distributed messaging with RabbitMQ, Apache NiFi, and Redis. I specialize in .NET 6/7/8, Clean Architecture, Azure DevOps CI/CD, and full-stack delivery across Angular, Vue.js, and Blazor.…I'm Saulo Mendes, a Senior .NET Engineer with 20+ years of experience delivering scalable backend systems, cloud-native architectures, and real-time processing solutions. I'm a leader in large-scale migrations and performance optimizations, having guided zero-downtime transitions at Worldpay and reduced infrastructure load by 30% at VSoft through distributed messaging with RabbitMQ, Apache NiFi, and Redis. I specialize in .NET 6/7/8, Clean Architecture, Azure DevOps CI/CD, and full-stack delivery across Angular, Vue.js, and Blazor.

Available to hire

I’m Saulo Mendes, a Senior .NET Engineer with 20+ years of experience delivering scalable backend systems, cloud-native architectures, and real-time processing solutions.

I’m a leader in large-scale migrations and performance optimizations, having guided zero-downtime transitions at Worldpay and reduced infrastructure load by 30% at VSoft through distributed messaging with RabbitMQ, Apache NiFi, and Redis. I specialize in .NET 6/7/8, Clean Architecture, Azure DevOps CI/CD, and full-stack delivery across Angular, Vue.js, and Blazor.

Skills

Experience Level

Expert

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Language

Portuguese

Fluent

English

Advanced

Work Experience

Senior Software Engineer at Solvd.us

December 1, 2025 - Present

Architected a scalable Blazor Server application on .NET, making key decisions on system architecture, data security, and design. Led performance improvements and contributed to the architecture roadmap. Implemented robust logging and observability to support production reliability.

Full Stack .NET Software Engineer at Worldpay

June 1, 2025 - November 1, 2025

Led a large-scale legacy modernization initiative, migrating .NET Framework 4 applications to the cloud with zero downtime. Executed multi-environment deployments using Octopus Deploy; performed Azure Portal monitoring and proactive performance tuning.

Tech Lead / Senior Software Engineer at VSoft Tecnologia

January 1, 2021 - May 1, 2025

Developed a .NET 8 API for real-time image and audio processing (facial verification, audio transcription) during driving exams, with comprehensive OpenAPI/Swagger documentation. Reduced database load and API latency by optimizing data access and messaging (Redis, RabbitMQ). Modernized legacy front-ends and implemented CI/CD pipelines; mentored engineers and guided architecture decisions.

Full Stack Engineer at Grupo Supero

January 1, 2020 - January 1, 2021

Developed and maintained sales-focused REST APIs and Angular applications using .NET, RabbitMQ, and SQL Server. Implemented data normalization and bulk-processing tools to reduce manual work and improve data accuracy across distributed systems.

Full Stack Engineer at Ti9 Agência Digital

January 1, 2019 - January 1, 2020

Developed a hospital on-call scheduling web app using .NET Blazor, REST APIs, and SQL Server. Built a mobile learning app with Xamarin.Forms and Realm DB, plus a Blazor-based admin panel.

Full Stack Engineer at W3 Iluminação

January 1, 2017 - January 1, 2019

Designed a full management platform for a public lighting company; built a real-time mobile inspection app with Xamarin.Forms and Realm DB; created an Angular web portal with operational analytics; implemented .NET Framework 4 APIs and microservices.

Software Engineer at Odonto Card

January 1, 2009 - January 1, 2017

Designed and built a full ERP system for a network of dental clinics using C#/.NET, SQL Server, REST APIs, with modules for patient management, scheduling, finance, and inventory.

Software Engineer at Ti9 Agência Digital

January 1, 2000 - January 1, 2009

Designed a hospital ERP from scratch (Delphi/PostgreSQL) covering diagnostics, scheduling, clinical records, billing, and finance; delivered industry-specific ERP extensions for auto parts, freight, and pest control companies using Delphi and Firebird.