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Hi, I'm Daniel Silvestre Rojas, a passionate and experienced full stack developer with a strong background in software engineering. Over the years, I've honed my skills in modern technologies like C#, .Net, React, Vue, and Azure, working on various enterprise and international projects. I enjoy solving complex problems and collaborating in agile teams to build efficient and scalable software solutions. With a technical engineering degree from the Polytechnic University of Valencia and multiple Udemy courses under my belt, I continue to keep my skills sharp and up to date. I’m fluent in English and Spanish, which has helped me work in diverse environments. When I’m not coding, I like to mentor others and contribute to architectural decisions that improve software quality and maintainability.…Hi, I'm Daniel Silvestre Rojas, a passionate and experienced full stack developer with a strong background in software engineering. Over the years, I've honed my skills in modern technologies like C#, .Net, React, Vue, and Azure, working on various enterprise and international projects. I enjoy solving complex problems and collaborating in agile teams to build efficient and scalable software solutions. With a technical engineering degree from the Polytechnic University of Valencia and multiple Udemy courses under my belt, I continue to keep my skills sharp and up to date. I’m fluent in English and Spanish, which has helped me work in diverse environments. When I’m not coding, I like to mentor others and contribute to architectural decisions that improve software quality and maintainability.

Daniel Silvestre Rojas

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Hi, I'm Daniel Silvestre Rojas, a passionate and experienced full stack developer with a strong background in software engineering. Over the years, I've honed my skills in modern technologies like C#, .Net, React, Vue, and Azure, working on various enterprise and international projects. I enjoy solving complex problems and collaborating in agile teams to build efficient and scalable software solutions. With a technical engineering degree from the Polytechnic University of Valencia and multiple Udemy courses under my belt, I continue to keep my skills sharp and up to date. I’m fluent in English and Spanish, which has helped me work in diverse environments. When I’m not coding, I like to mentor others and contribute to architectural decisions that improve software quality and maintainability.…Hi, I'm Daniel Silvestre Rojas, a passionate and experienced full stack developer with a strong background in software engineering. Over the years, I've honed my skills in modern technologies like C#, .Net, React, Vue, and Azure, working on various enterprise and international projects. I enjoy solving complex problems and collaborating in agile teams to build efficient and scalable software solutions. With a technical engineering degree from the Polytechnic University of Valencia and multiple Udemy courses under my belt, I continue to keep my skills sharp and up to date. I’m fluent in English and Spanish, which has helped me work in diverse environments. When I’m not coding, I like to mentor others and contribute to architectural decisions that improve software quality and maintainability.

Available to hire

Hi, I’m Daniel Silvestre Rojas, a passionate and experienced full stack developer with a strong background in software engineering. Over the years, I’ve honed my skills in modern technologies like C#, .Net, React, Vue, and Azure, working on various enterprise and international projects. I enjoy solving complex problems and collaborating in agile teams to build efficient and scalable software solutions.

With a technical engineering degree from the Polytechnic University of Valencia and multiple Udemy courses under my belt, I continue to keep my skills sharp and up to date. I’m fluent in English and Spanish, which has helped me work in diverse environments. When I’m not coding, I like to mentor others and contribute to architectural decisions that improve software quality and maintainability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Spanish; Castilian

Fluent

Work Experience

Senior Fullstack Developer at Beyond-Amaris

May 31, 2025 - July 11, 2025

Developed software using C#, .Net 8, Entity Framework Core 8, ASP.NET Web Api, SQL Server, Mediator Pattern, CQRS, DDD, Event Driven Architecture, Azure Bus, MassTransit, TypeScript, Vue 3, CSS, HTML, XUnit, Vitest. Took part in architectural decisions and mentoring. Used Azure technology for Git repository, CI/CD and task management. Agile methodology.

Senior Fullstack Developer at Beyond-Amaris

May 31, 2025 - July 11, 2025

Software development using C#, .Net 8, Entity Framework Core 8, ASP.NET Web Api, Sql Server, Mediator Pattern, CQRS, DDD, Event Driven Architecture, Azure Bus, MassTransit, TypeScript, Vue 3, CSS, Html, XUnit, Vitest. Participate in software architectural decisions, mentoring. Azure technology about Git repository, CI/CD and task management. Agile software development methodology.

Senior Fullstack Developer at Parser-Dunnhumby

May 1, 2025 - Present

Software development using C#, .Net 8, ASP.NET Web Api, PostgreSQL, Event Driven Architecture, TypeScript, React, NextJs, NUnit (Unit and Integration tests), Stryker. Consumed Azure and GCP cloud services like PostgreSQL database or Azure Storage. Managed GitLab repository, CI/CD and tasks. Agile software development methodology.

Senior Fullstack Developer at Parser-Dunnhumby

May 1, 2025 - Present

Software development using C#, .Net 8, ASP.NET Web Api, Postgresql, Event Driven Architecture, TypeScript, React, NextJs, NUnit (Unit and Integration tests), Stryker. Consume Azure and GCP cloud services like postgresql database or Azure Storage. GitLab repository, CI/CD and task management. Agile software development methodology.

Principal Software Engineer at Sphera UK

October 31, 2024 - July 11, 2025

Improved and maintained company software as a fullstack developer using .net, C#, WebApi, Angular 18, Typescript, Web Api, DDD architecture, SQL Server (Transact SQL), Web SPA, Git, CI/CD (Azure), XUnit, Jasmine. Managed Azure databases and utilized Azure task management and CI/CD tools.

Principal Software Engineer at Sphera UK

October 31, 2024 - July 11, 2025

Improve and maintain software of the company as fullstack developer with .net, C#, WebApi, Angular 18, Typescript, Web Api, DDD architecture, Sql Server (Transact SQL), Web SPA, Git, CI/CD (Azure), XUnit, Jasmine. Database allocated in Azure and used the Azure task management and CI/CD tools.

Fullstack Senior Developer/Software Architect at Earlybyte GmbH

May 31, 2024 - July 11, 2025

Evolved insurance company web SPA software to DDD Architecture. Increased software features as fullstack developer using C#, .net (6/7/8), React JS 18, Hooks, TypeScript, SQL Server, GitLab, REST API, Entity Framework (6/7/8), Code First, Migrations, Linq, IoC, QuestPDF. Worked in an international environment using English as default language.

Fullstack senior Developer/Software Architect at Earlybyte GmbH

May 31, 2024 - July 11, 2025

Evolving insurance company web SPA software to DDD Architecture. Increase software features as fullstack developer using technologies such as C#, .net 6/7/8, React Js 18, Hooks, TypeScript, Sql Server, Git Lab, Api Rest, Entity Framework 6/7/8, Code First, Migrations, Linq, IoC, QuestPDF in an international environment using English as the company's default language.

Senior Analyst/Developer at Energía Colectiva S.L. (Lucera)

February 28, 2022 - July 11, 2025

Developed Web API in C# with .Net 5 using DDD, CQRS, IoC, Entity Framework Core, Linq2Db. Utilized HangFire, CosmosDB, SQL Server, PostgreSQL on Azure. Deployed with GitLab pipelines. Maintained frontend with ASP.Net MVC and provided Vue frontend support.

Senior Analyst/Developer at Energía Colectiva S.L. (Lucera)

February 28, 2022 - July 11, 2025

Web Api in C# with .Net 5 using DDD, CQRS, IoC, Entity Framework Core, Linq2Db. Use of HangFire, CosmosDB, SQL Server and Postgresql on Microsoft's Azure platform. Deployment with pipelines in GitLab. Using GitExtensions as a repository Git client. Unit tests with NUnit. Frontend maintenance with Asp.Net MVC and occasional support in Vue frontends.

Senior Analyst/Developer at Rethink Marketing

December 31, 2021 - July 11, 2025

Maintained Web API in C# with .Net Core 3.1 using CQRS, IoC, Entity Framework Core, Dapper. Used Azure buses and functions. Deployed with Azure pipelines. Maintained legacy Web API with .Net Framework and DDD architecture using Entity Framework 6.x.

Senior Analyst/ Developer at Rethink Marketing

January 31, 2021 - July 11, 2025

Web Api maintenance in C# with .Net Core 3.1 using CQRS, IoC, Entity Framework Core, Dapper. Use of buses and Azure functions in Microsoft's Azure platform. Deployment with pipelines in Azure. Use of GitKraken as a Git client for Azure repositories. Maintenance of legacy Web Api in .Net Framework with DDD architecture. Using Entity Framework 6.X.

Technical Manager of Development Team at Nunsys

December 31, 2020 - July 11, 2025

Led .net development team with responsibility for technology and architecture decisions, task coordination, analysis and development. Worked with .NET Real Time Multi-Tasking System, Entity Framework, DDD, .net Core, C#, Dapper, IoC, Web API, SQL Server.

Senior Analyst/Developer at Wonderbits

December 31, 2020 - July 11, 2025

Migrated MVC .Net Framework application to SPA with DDD using .Net Core (C# backend) and Angular frontend. Used CQRS, EF Core, SQL Server. Maintained legacy code, Node backend, and Angular frontend. Handled security with JWT tokens. Managed MariaDB as DB engine.

Technical Manager of Development Team at Nunsys

December 31, 2020 - July 11, 2025

Core of the .net development team. Final decision on technology and architecture. Coordination of tasks with project managers, analysis and development using .NET Real Time Multi-Tasking System, Entity Framework, DDD, .net Core, C#, Dapper, IOC, Web Api, SQL Server.

Senior Analyst/ Developer at Wonderbits

December 31, 2020 - July 11, 2025

Migration of a MVC .Net Framework application to a SPA application with DDD using .Net Core with C# in the Backend and Angular in the Frontend. Use of CQRS for the Application layer. Use of EF Core as ORM for the persistence layer. Sql Server as database engine. Legacy code maintenance and support. Requirements gathering and solution delivery. Maintenance of Node application in the Backend and Angular in the Frontend. JWT tokens for security. MariaDB as DB engine.

Analyst/Developer at GRM

December 31, 2018 - July 11, 2025

Developed Web API integrating Cargo Wise One international transport software with invoicing systems using C#, DDD, Entity Framework with Code First, Dapper, IoC (Autofac), REST and SOAP web services, SQL Server.

Analyst/ Developer at GRM

December 31, 2018 - July 11, 2025

Web Api development for integration of Cargo Wise One international transport software with invoicing systems using C#, DDD, Entity Framework with Code First, Dapper, IoC (Autofac), Rest and SOAP web services and SQL Server database.

Developer I+D at Add Informática

December 31, 2017 - July 11, 2025

Developed and tested technologies with DDD, Dependency Injection, Entity Framework Core, LINQ, and .net Core Web API consumed by Xamarin apps. Conducted unit testing with MSTest with SQL Server databases on Windows and Linux. Used Visual Studio and Team Foundation Server.

Developer I+D at Add Informática

December 31, 2017 - July 11, 2025

Development and testing of technologies using DDD approach, Dependency Injection, Entity Framework Core, Linq, Web Api in .net Core for Xamarin applications. Unit testing with MSTest and SQL Server 2016 databases on Windows and Linux (Ubuntu). Visual Studio 2015 and 2017 tools. Team Foundation Server as code repository.

Analyst/Developer at Punt Sistemes S.L.

December 31, 2016 - July 11, 2025

Developed customized applications for Sage and other software including desktop and web (WinForms, WebForms) using Telerik ASP.Net Ajax controls. Implemented WebMethods with JSON, JQuery, Kendo. Created Web API for Android app, reporting services, Silverlight apps, WPF apps, and integration with CMS online shop.

Analyst/Developer at Punt Sistemes S.L.

December 31, 2016 - July 11, 2025

Development of customised applications for Sage 100, Dimoni, Synergy, and A3 desktop and web applications using WinForms, WebForms, Telerik Asp.Net Ajax controls, JQuery, Kendo, Web Api for Android App consumption, Reporting Services (SSRS), Silverlight with WCF RIA Services, WPF applications, integration with CMS online shop using Linq to SQL comparing data from MySQL and SQL Server. HelpDesk support.

Analyst/Developer & Team Leader at A.F. Informática

December 31, 2011 - July 11, 2025

Developed desktop ERP in Delphi/Firebird, web apps in C#, Silverlight, ASP.Net, WCF Web Services, Oracle 11g. Used Visual Studio and Expression Blend.

Analyst/Developer & Team Leader at A.F. Informática

December 31, 2011 - July 11, 2025

Desktop ERP development in Delphi/Firebird. Development of web applications in C#, Silverlight, Asp.Net, WCF Web Services, Oracle 11g using Visual Studio 2008/2010 and Expression Blend.

Analyst/Developer at Sertecnet Valencia S.L.

December 31, 2007 - July 11, 2025

Developed ERP and other desktop software in Delphi with PostgreSQL and Firebird databases.

Analyst/Developer & Team Leader at NixUniversal S.L.

December 31, 2007 - July 11, 2025

Developed ERP with human resources, payroll and HR management modules using Visual Basic and SQL Server.

Analyst/Developer at Sertecnet Valencia S.L.

December 31, 2007 - July 11, 2025

ERP and desktop software development using Delphi and Postgresql/Firebird databases.

Analyst/Developer & Team Leader at NixUniversal S.L.

December 31, 2007 - July 11, 2025

ERP development including human resources, payroll, and HR management modules, using Visual Basic and SQL Server.

Analyst/Developer at Empresa Ginsa S.A.

December 31, 2003 - July 11, 2025

Migrated applications from COBOL to Delphi (Delphi, Interbase).

Analyst/Developer at Empresa Ginsa S.A.

December 31, 2003 - July 11, 2025

Migration of applications from Cobol to Delphi using Delphi and Interbase.

Developer at EOS Informática

December 31, 2002 - July 11, 2025

Developed database applications (Delphi, Informix, Interbase) and web content (Dreamweaver, Flash, HTML, JS, PHP). Performed helpdesk and remote administration of servers and databases including network security.

Developer at EOS Informática

December 31, 2002 - July 11, 2025

Database application development using Delphi, Informix, Interbase and web development using Dreamweaver, Flash, HTML, JavaScript, PHP. Helpdesk tasks and remote administration of databases and servers (NT, HP-UX, Linux) including local and wide area network security.

Analyst/Developer at Sistemas Informáticos BC

January 1, 2001 - Present

Analyzed and developed desktop applications using Delphi and Interbase. Designed, installed, and implemented computer systems and provided direct user support.

Analyst/Developer at Sistemas Informáticos BC

January 1, 2001 - Present

Analysis and development of desktop applications using Delphi and Interbase. Study, design, installation, and implementation of computer systems within the company with direct user support.

Developer /System Administrator at FEPYR S.A.

December 31, 2000 - July 11, 2025

Maintained hardware and software of PCs and administered corporate network for over 40 users. Maintained desktop software in Delphi.

Developer /System Administrator at FEPYR S.A.

December 31, 2000 - July 11, 2025

Hardware and software maintenance of PCs and administration of corporate network with over 40 users. Maintenance of software desktop applications with Delphi.