Senior .NET development · Remote · US
I'm Frank Saraceno. For 25 years I've built and modernized Microsoft-stack software for healthcare, finance and engineering companies. Today I pair that experience with AI-assisted development to ship upgrades, new features and whole products far faster than a traditional team.
<Project Sdk="Microsoft.NET.Sdk.Web"> <PropertyGroup>- <TargetFrameworkVersion>v4.8</TargetFrameworkVersion>+ <TargetFramework>net10.0</TargetFramework>+ <Nullable>enable</Nullable> </PropertyGroup> <ItemGroup>- <Reference Include="System.Web.Http" />+ <PackageReference Include="Swashbuckle.AspNetCore" />+ <PackageReference Include="Azure.AI.OpenAI" /> </ItemGroup></Project>Services
Each engagement starts with a fixed scope and a clear deliverable, so you know what you're getting before work begins.
Move .NET Framework, Web Forms, MVC 5, WCF or WPF applications to modern .NET, with tests in place so nothing quietly breaks along the way.
.NET Framework → .NET 8–10 · EF Core · xUnit
Add document search, summarization, assistants or classification to software you already run, using Azure OpenAI or local models, with data kept where it belongs.
Azure OpenAI · local LLMs · hybrid routing
Split a monolith into services you can deploy on their own, or design clean REST APIs with documentation, authentication and CI/CD from day one.
ASP.NET Core Web API · OAuth 2.0 / OIDC · Azure DevOps
Take an idea to a working, sellable product: the app, the website, payments, licensing and monitoring. The case study below is one I built for myself.
C# · C++ · Angular · React · SQL Server
Case study
A complete commercial software product, designed and built by one developer working with AI.
arctone.studio lets musicians stack and switch plug-ins and presets, at home or on stage. It runs as a standalone app and as a VST plug-in.
Around the app sits everything a real software business needs: a public website, checkout, license keys, customer email, installer signing and a monitoring dashboard that alerts my phone if anything goes down.
Experience
Most of my career has been inside regulated systems: patient records, Medicare reporting, payments and banking.
How it works
A short call about what you have, what's hurting and what done looks like.
A written plan with deliverables, timeline and a set price.
Working software every week, in your repository, so you can see progress and steer.
Tests, documentation and a walkthrough so your team can own it from there.
Tell me a little about it and I'll get back to you. Based in New Hampshire, working remotely with US clients.