Samuel S.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I’m a Senior Full-Stack .NET & Database Engineer with 20+ years of experience designing, developing, modernizing, and supporting enterprise applications, ERP systems, and database-driven solutions. I specialize in C#/.NET, ASP.NET Core, SQL Server/T-SQL, Oracle PL/SQL, ERP systems, REST APIs, Docker, and CI/CD automation. I help businesses modernize legacy applications, optimize databases, integrate systems, and build reliable applications that are easier to deploy, maintain, and scale. 🚀 What I Can Help You With Full-Stack .NET Development — C#, .NET, ASP.NET Core, Web API, MVC, Blazor Database Development & Optimization — SQL Server/T-SQL, Oracle PL/SQL, PostgreSQL, stored procedures, queries, performance tuning, database design ERP Development & Customization — Odoo and ERPNext, including customization, migration, integration, and deployment REST API & System Integration — secure, scalable APIs and integrations between enterprise systems Docker & Containerization — Dockerfiles, Docker Compose, containerized applications, and production deployments CI/CD & DevOps — GitLab CI/CD, automated builds and deployments, GitLab Runner, deployment scripting, and environment management Cloud & Infrastructure — Microsoft Azure, cloud-based applications, databases, storage, and deployment infrastructure Legacy System Modernization — upgrading frameworks, refactoring applications, migrating databases, and moving traditional deployments to modern containerized environments Enterprise Applications & Dashboards — business applications, reporting systems, administrative portals, and data-driven dashboards 💼 Experience You Can Rely On Over two decades in software development have given me experience working with both legacy and modern technology stacks. I’ve delivered solutions for clients in the USA and the Philippines, working on enterprise applications, ERP systems, financial and business processes, APIs, dashboards, database systems, and cloud infrastructure. I’m comfortable working across the entire application lifecycle—from database design and backend development to APIs, frontend applications, deployment automation, and production infrastructure. Whether you need to fix an existing system, optimize a slow database, migrate an ERP, develop a new .NET application, build an API, Dockerize an application, or automate your deployment process, I can work with your existing environment and deliver a practical, maintainable solution. 🔧 My Core Technologies C# • .NET • ASP.NET Core • Web API • Blazor • MVC • SQL Server • T-SQL • Oracle PL/SQL • PostgreSQL • Odoo • ERPNext • Docker • Docker Compose • GitLab CI/CD • Microsoft Azure • REST APIs • DevOps • CI/CD • Entity Framework Core I focus on clean architecture, database performance, security, automation, maintainability, and reliable delivery—not just getting the code to work. If you have a complex legacy system, database, ERP, .NET application, or deployment process that needs to be improved, I can help you modernize it and get it working reliably.