John M.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.

🏅 Top-Rated Plus | ⭐ 5-Star Reviews | ✅ Upwork Verified | 🕛 Full-Time Availability 👋 I'm John — a C#/.NET backend engineer and AWS-certified architect with over 6 years of experience delivering clean, scalable, production-ready systems for startups, enterprises, and government agencies. I specialize in: 🔧 Backend API development using .NET 6/7/8, EF Core, and PostgreSQL ☁️ Cloud-native microservices built on AWS Lambda, API Gateway, and Terraform 🧩 Robust database architecture and batch/ETL processing pipelines 🚀 Clean, maintainable code that’s built for performance and longevity ✅ What I Bring to the Table 🧠 Technical Expertise Languages: C#, Python, JavaScript, SQL, Java Frameworks: ASP.NET Core, Entity Framework, LINQ Cloud: AWS (Lambda, S3, API Gateway, RDS, Cognito), Docker, Terraform DevOps: GitLab CI/CD, Git, Docker Compose Testing: xUnit, Postman, Jest 🏗️ Backend Engineering RESTful APIs, microservices, async job queues Clean Architecture, DDD, SOLID principles Scalable deployments using containers or serverless 🛡 Military Precision & Reliability Former Army National Guard MP – I bring discipline, ownership, and a get-it-done mindset to every engagement. You can count on clear communication, on-time delivery, and total focus on results. 💼 Services Offered Backend API & Microservice Development (C# / .NET / AWS) AWS Serverless Architecture & IaC (Terraform / CloudFormation) Database Design & Optimization (PostgreSQL, SQL Server, EF Core) Batch / ETL Processing (Lambda, Spring Batch, Node) DevOps Setup (Docker, CI/CD, GitLab Pipelines) Refactoring & Architecture Consulting --- 💬 Clients Say: > "John is a highly skilled and highly competent person to work with!" — The Programmer Coach Ready to take your system to the next level? Let’s talk — I’ll help you ship faster, scale smarter, and sleep easier.