Sam S.
C# | Angular | SQL | .Net Core | Asp.Net | API
Senior Full-Stack Developer | .NET + React Specialist Built full-stack web applications for healthcare, fintech, and SaaS clients. Work with teams that need someone who can handle both architecture and hands-on coding without constant hand-holding. Recent Projects: Healthcare clinic management system — Patient scheduling, EHR integration, HIPAA-compliant messaging. PostgreSQL + .NET Core backend, React frontend. 3 clinics live, handling 200+ appointments/day. Fintech payment platform — Multi-currency transactions, Stripe integration, automated reconciliation. Handles $50K+ daily volume. Built with .NET microservices + Next.js. SaaS marketplace — Multi-tenant architecture, role-based access, usage-based billing. MongoDB + .NET backend, React frontend. 2,000+ active users. What I Build: Full-stack applications where backend and frontend actually work together. API design, database architecture, user authentication, payment integrations, third-party APIs, deployment pipelines. Not interested in small fixes or WordPress tweaks. Best fit for projects $5K+ that need 2-6 months of focused work. Tech Stack: Backend: .NET Core, C#, ASP.NET, Node.js, Entity Framework Frontend: React, Next.js, TypeScript, Angular Databases: SQL Server, PostgreSQL, MongoDB Cloud: Azure, AWS (deployment, CI/CD, monitoring) Integrations: Stripe, Twilio, QuickBooks, SendGrid, Google APIs Domains with Real Experience: Healthcare: HIPAA compliance, patient portals, appointment systems, EHR integrations Fintech: Payment processing, PCI compliance, transaction reconciliation SaaS: Multi-tenancy, subscription billing, role-based access E-commerce: Inventory management, order processing, shipping integrations How I Work: Available 30+ hours/week. Overlap with US timezones (EST/PST). Daily updates via Slack/email. Code reviews before merging. No surprises mid-project. Work through Step2gen Technologies (70+ developer team, India-based). You get me as your dedicated developer plus backup support if needed. Looking for: Projects $5K-$50K range 2-6 month duration Clear requirements or willingness to define them together Clients who value getting it done right over getting it done cheap If you need someone to start this week and actually finish what they start, let's talk.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $19k
Billed in all: $171,499$171k
$19k in the last 6 months
Across 13 contracts
Earnings, last 30 days
Skill rankings: Top 3% in jQuery
Ranked by MRR among everyone on Upwork with the skill.
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