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Hi, I'm Diogo Tomas, a Senior Full Stack Engineer with over 7 years of experience specializing in Microsoft .NET technologies and cloud solutions. I am passionate about designing, developing, and deploying scalable web and cloud-based applications that solve complex business problems. I enjoy working across both front-end and back-end domains, leveraging modern frameworks like React.js and Angular.js, and harnessing the power of Azure cloud services. Throughout my career, I have led projects involving microservices architecture, containerization with Docker and Kubernetes, and building efficient CI/CD pipelines. I am a strong believer in clean, modular code and continuous improvement, and I thrive in collaborative Agile teams — always aiming to deliver high-quality, maintainable software that meets business goals.…Hi, I'm Diogo Tomas, a Senior Full Stack Engineer with over 7 years of experience specializing in Microsoft .NET technologies and cloud solutions. I am passionate about designing, developing, and deploying scalable web and cloud-based applications that solve complex business problems. I enjoy working across both front-end and back-end domains, leveraging modern frameworks like React.js and Angular.js, and harnessing the power of Azure cloud services. Throughout my career, I have led projects involving microservices architecture, containerization with Docker and Kubernetes, and building efficient CI/CD pipelines. I am a strong believer in clean, modular code and continuous improvement, and I thrive in collaborative Agile teams — always aiming to deliver high-quality, maintainable software that meets business goals.

Diogo Tomas

Full Stack Developer, DevOps Developer, Cloud Developer, +3

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Hi, I'm Diogo Tomas, a Senior Full Stack Engineer with over 7 years of experience specializing in Microsoft .NET technologies and cloud solutions. I am passionate about designing, developing, and deploying scalable web and cloud-based applications that solve complex business problems. I enjoy working across both front-end and back-end domains, leveraging modern frameworks like React.js and Angular.js, and harnessing the power of Azure cloud services. Throughout my career, I have led projects involving microservices architecture, containerization with Docker and Kubernetes, and building efficient CI/CD pipelines. I am a strong believer in clean, modular code and continuous improvement, and I thrive in collaborative Agile teams — always aiming to deliver high-quality, maintainable software that meets business goals.…Hi, I'm Diogo Tomas, a Senior Full Stack Engineer with over 7 years of experience specializing in Microsoft .NET technologies and cloud solutions. I am passionate about designing, developing, and deploying scalable web and cloud-based applications that solve complex business problems. I enjoy working across both front-end and back-end domains, leveraging modern frameworks like React.js and Angular.js, and harnessing the power of Azure cloud services. Throughout my career, I have led projects involving microservices architecture, containerization with Docker and Kubernetes, and building efficient CI/CD pipelines. I am a strong believer in clean, modular code and continuous improvement, and I thrive in collaborative Agile teams — always aiming to deliver high-quality, maintainable software that meets business goals.

Available to hire

Hi, I’m Diogo Tomas, a Senior Full Stack Engineer with over 7 years of experience specializing in Microsoft .NET technologies and cloud solutions. I am passionate about designing, developing, and deploying scalable web and cloud-based applications that solve complex business problems. I enjoy working across both front-end and back-end domains, leveraging modern frameworks like React.js and Angular.js, and harnessing the power of Azure cloud services.

Throughout my career, I have led projects involving microservices architecture, containerization with Docker and Kubernetes, and building efficient CI/CD pipelines. I am a strong believer in clean, modular code and continuous improvement, and I thrive in collaborative Agile teams — always aiming to deliver high-quality, maintainable software that meets business goals.

Skills

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Expert

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Intermediate

Work Experience

.NET Lead Full Stack Developer at InnoWave

May 31, 2025 - July 10, 2025

Led the development of scalable ASP.NET MVC web applications and RESTful APIs, optimizing performance and reducing latency by 30%. Built dynamic front-end interfaces using HTML5, CSS3, Bootstrap, and AngularJS, integrated with a responsive backend using C# and ASP.NET MVC. Designed and implemented a highly robust ASP.NET Core Web API, streamlining departmental workflows and reducing downtime by 25%. Improved SQL database performance by 40% with complex queries, stored procedures, triggers, and indexed optimization using SQL Profiler and Execution Plan. Designed and deployed Azure CI/CD pipelines for Kubernetes environments, minimizing deployment time by 30%. Integrated Azure Services such as Active Directory, Blob Storage, Service Bus, Logic Apps, and Functions, reducing infrastructure costs by 15%. Automated resource creation on Azure using ARM templates and PowerShell scripts. Delivered high-performance messaging solutions using Kafka for real-time reprocessing of failure messages. O

Sr .NET Developer with Technical Lead at Net IT

December 31, 2023 - July 10, 2025

Developed ASP.NET Core microservices and REST APIs to process sensitive financial data, ensuring a 99.9% secure transaction success rate. Created scalable front-end applications with React.js and JWT-based authentication for over 100,000 daily users. Automated application workflows by building Azure Functions and Service Bus Queues, reducing manual intervention by 30%. Built robust CI/CD pipelines with Azure DevOps and Dockerized containers, decreasing release cycles by 50%. Designed SPA modules with React.js, React Bootstrap, and Redux, optimizing rendering performance by 25%. Enhanced system scalability and data throughput via Kubernetes orchestrated container deployments. Resolved production bottlenecks alongside SRE and DevOps teams, improving incident response times to under 2 hours. Developed SSIS packages and SSRS reports supporting business intelligence used by executive teams for critical decisions.

.NET Developer at NOS SGPS

February 28, 2023 - July 10, 2025

Designed and developed ASP.NET MVC applications using C#, AJAX, LINQ, and SQL, resulting in a 30% faster user experience. Implemented Oracle PL/SQL triggers, packages, and procedures supporting over 75,000 daily transactions with 99.9% reliability. Built SQL optimization solutions accelerating query execution by 40%. Automated ETL processes with SSIS to improve data pipeline reliability for patient benefits tracking. Developed React.js components supporting 80,000+ active users with seamless frontend performance. Maintained and monitored production systems, resolving over 100 escalated incidents monthly with a 95% success rate. Streamlined API calls to WCF services, reducing response times by 20ms. Supported high-traffic enterprise systems by integrating network routing protocols and DNS management tools.

Software Engineer at Simens

July 31, 2019 - July 10, 2025

Developed and maintained enterprise web applications using ASP.NET Core and Entity Framework, enhancing system performance and maintainability. Collaborated in Agile teams to deliver RESTful APIs, implement business logic, and integrate with SQL Server databases.

.NET Lead Full Stack Developer at InnoWave

May 31, 2025 - July 10, 2025

Led the development of scalable ASP.NET MVC web applications and RESTful APIs, optimizing performance and reducing latency by 30%. Built dynamic front-end interfaces using HTML5, CSS3, Bootstrap, and AngularJS, integrated with a responsive backend using C# and ASP.NET MVC. Designed and implemented a highly robust ASP.NET Core Web API, streamlining departmental workflows and reducing downtime by 25%. Improved SQL database performance by 40% with complex queries, stored procedures, triggers, and indexed optimization. Designed and deployed Azure CI/CD pipelines for Kubernetes environments, minimizing deployment time by 30%. Integrated Azure Services to minimize infrastructure costs by 15% and automated resource creation using ARM templates and PowerShell. Delivered high-performance messaging solutions using Kafka, optimized React-based SPAs, migrated monolithic APIs into microservices, worked with Agile and JIRA, and strengthened cloud security by implementing OAuth and Azure Key Vault in

Sr .NET Developer with Technical Lead at Net IT

December 31, 2023 - July 10, 2025

Developed ASP.NET Core microservices and REST APIs to process sensitive financial data with a 99.9% secure transaction success rate. Created scalable React.js front-end applications with JWT authentication securing access for 100,000+ users daily. Automated workflows using Azure Functions and Service Bus to reduce manual tasks by 30%. Built CI/CD pipelines using Azure DevOps and Docker containers, decreasing release cycles by 50%. Designed React.js SPA modules optimized for performance. Implemented Kubernetes to automate containerized deployments. Collaborated with SRE and DevOps teams to optimize incident response under 2 hours. Enhanced business intelligence by creating SSIS packages and SSRS reports utilized by executives.

.NET Developer at NOS SGPS

February 28, 2023 - July 10, 2025

Designed and developed ASP.NET MVC applications using C#, AJAX, LINQ, and SQL, resulting in a 30% faster user experience. Implemented Oracle PL/SQL triggers and procedures handling 75K daily transactions with 99.9% reliability. Accelerated query execution by 40% through SQL optimizations. Automated ETL processes with SSIS for patient benefits tracking. Developed React.js components supporting 80K+ users. Maintained production systems resolving over 100 escalated incidents monthly with 95% success. Streamlined API calls to WCF services and supported enterprise systems with network routing and DNS management.

Software Engineer at Siemens

July 31, 2019 - July 10, 2025

Developed and maintained enterprise web applications using ASP.NET Core and Entity Framework, improving system performance and maintainability. Collaborated in Agile teams to deliver RESTful APIs, implement business logic, and integrate with SQL Server databases.