.NET 10 upgrades
.NET 8 and 9 are out of support as of November 10, 2026. I move your app to .NET 10, update its packages and pipeline, test it, and hand it back running.
$3,000–$8,000 per app, fixed price
.NET 8 and 9 are out of support as of Nov 10
Senior .NET engineering, a few hours a week.
I’m a senior software engineer with 13 years of building and running .NET and SQL Server systems, from the code to the pipelines to Azure hosting. I take on a few clients at a time for the work a small team can’t get to, and you deal with me from the first call to the last commit.
james@
- Experience
- 13 years of .NET and SQL Server
- In production
- Two platforms, 100,000+ people
- Hours
- Evenings, weekends, early mornings ET
- Replies
- By the next business day
Services
What I take on
Pipeline in a week
One repo, one environment. Automated builds, test gates on every pull request and repeatable deploys in Azure DevOps, set up once and written down.
Fixed fee, quoted after a short call
Monthly software care
For a business that runs on an app and has nobody watching it. I handle hosting, patches, small features and production issues, and you hear back by the next business day.
Flat monthly fee, sized to your app
Overflow for agencies
Need one more senior .NET engineer for a few weeks? I work white-label, under your name and in your repos.
Subcontract rate
Mortgage tech
I spent ten years building an enterprise loan-origination system and its Fannie Mae, Freddie Mac, Equifax and TransUnion integrations. On LOS projects I handle the .NET, REST and data-mapping work.
Hourly or by the project
Experience
Track record
NowToday
Senior engineer on two production platforms used by more than 100,000 people. I handle architecture, code, CI/CD, Azure hosting, SQL databases and client issues. I replaced hand-copied DLLs with a traceable Azure DevOps release every sprint, and I’m leading the move of several hundred client accounts to a new platform.
Built from scratchProduct work
Built a SaaS product from scratch on Azure: a .NET 8 API, an Angular front end, SQL Server, infrastructure in Bicep, Entra ID sign-in, and pipelines that test and deploy every push to main.
2013–2023Mortgage Cadence (Accenture)
Ten years on the Enterprise Lending Center, a loan-origination platform with Fortune 500 clients, finishing as senior lead engineer for CI/CD and deployments. I moved components from a monolith to .NET Core microservices, replaced Silverlight screens before end of support, and set up pipelines for several teams and trained their engineers. I also co-built an internal app that cut about $100K a year in license costs.
StackTools
- C#
- T-SQL
- TypeScript
- PowerShell
- .NET Framework through modern .NET
- ASP.NET Core
- Entity Framework Core
- Angular
- SQL Server
- Azure SQL
- DACPACs
- Azure App Service
- Azure DevOps
- Octopus Deploy
- Bicep
- Docker
- Kubernetes
Process
How it works
-
A 15-minute call
Tell me what you’re running and what’s worrying you. If I’m the wrong person for it, I’ll say so.
-
A one-page scope
You get what I’ll do, what it costs and when it’ll be done. The work runs under a short contract with Branch Office Software LLC, and fixed-price jobs start with a deposit.
-
Work you can follow
Small pull requests in your repo and a short written update each week.
Hours
15 to 20 hours a week, mostly evenings, weekends and early mornings Eastern, with the occasional daytime call. Email gets an answer by the next business day.