About

Audit-ready .NET 10 systems. Fixed price. One architect.

Based in the UK. I engineer production platforms businesses can trust under load — same-store audit, two-writer concurrency, and atomic workers — from first call to cutover.

How I work

You talk directly to the person who writes every line. Free technical call, written scope with a fixed price, milestone deliveries with working software, then deployment with documentation. Source code available for purchase.

I reply within one working day. If I cannot help, I will tell you honestly where else to look.

Engineering standards

Same-store audit. Every database write records its audit trail inside the same SQL transaction.

Two-writer concurrency. Row-version predicates prevent silent concurrent mutation.

Atomic workers. Claim-lease pattern with SQL UPDATE OUTPUT — host failure does not duplicate work.

Zero-warning gate. CI rejects a single compiler warning.

What that buys you

Financial state kept as an append-only ledger — balances derived from entries, never overwritten, so any figure can be replayed from its own history.

Legacy migrations staged behind a compatibility boundary so the old and new systems run side by side and cutover is a switch, not a weekend.

Background jobs that survive a killed host — conditional claim, attempt id before the external call, heartbeat lease, and recovery only from an expired lease.

Outbound requests resolved once and pinned to that address before connect, so a rebind cannot reach your internal network.

Technology

.NET 10, Blazor, EF Core, and SQL Server. No stored procedures, views, or triggers — behaviour in C#, state in SQL.

Contact

Email: [email protected]
Location: UK — London

Ready to fix the system that hurts?

Book a free 30-minute call. I will listen, ask questions, and tell you honestly whether your project fits what I do.