The person you talk to is the person who builds it
At Barker Consulting, every engagement is led, architected, and delivered by the same engineer — from the first conversation through production. No revolving door of consultants, no hand-off to a different team mid-project.
James K. Barker
Founder & Principal Engineer
James Barker is a software engineer with nearly two decades of experience building enterprise applications on the Microsoft platform. He founded Barker Consulting, LLC to bring that depth of experience directly to companies that need it — without the overhead of a large firm or the risk of being handed off to someone less experienced.
His career began in healthcare technology, building dynamic web applications for a national nonprofit that coordinates life-saving donor matches. From there, he moved into enterprise mobility — spending years as a consulting engineer at a global leader in rugged mobile devices, where he worked directly with more than a dozen enterprise customers across warehouse automation, logistics, package delivery, retail, and consumer products. That role gave him a front-row seat to how large organizations actually use mobile software in the field — and what it takes to build systems that work when the network doesn't.
He went on to build mobile applications in automotive finance before founding Barker Consulting, where he now serves clients in insurance claims management, food and beverage supply chain, and other industries that depend on reliable, offline-capable field software.
Integrity isn't a talking point — it's the operating standard
James operates with the highest regard for doing it right. That means telling you the hard truth about a technical decision, not the easy answer. It means flagging a problem even when it's inconvenient.
That same standard applies to every engagement at Barker Consulting: clean code, honest timelines, and solutions built to survive after the engagement ends.
// REVIEW — five flags. Returning for rework.
public async Task SyncAsync(CancellationToken ct)
{
// FLAG #1 — no concurrency guard. Timer + manual trigger
// both fire; pending is read twice, records push twice.
var pending = await _local.GetUnsynced(ct);
foreach (var record in pending)
{
// FLAG #2 — no retry, no backoff. A degraded backend
// turns this loop into a self-DDoS.
var result = await _remote.PushAsync(record, ct);
// FLAG #3 — drop between PushAsync and MarkSynced
// re-pushes next cycle. Silent duplicate writes.
// Push contract needs an idempotency key.
// FLAG #4 — Succeeded ≠ visible. Eventual consistency
// means we mark synced before reads see the record.
if (result.Succeeded)
await _local.MarkSynced(record.Id, ct);
// FLAG #5 — one throw strands every record after.
// Per-record try/catch + poison-row dead-letter.
}
}
// Cheaper code shipped these bugs in production once already.
// Slips the sprint by ~2 weeks. Worth it.Built for the field
A recurring thread across James's career is software that works where the network doesn't. From warehouse floors to delivery routes to field claims inspections, the applications he builds are designed to operate offline, sync intelligently when connectivity returns, and never lose a transaction.
That specialty — sync-aware, offline-capable mobile and field software — runs through every platform generation he's worked on: from legacy Windows Mobile, through Xamarin, and into modern .NET MAUI. The business logic travels with the platform. The reliability stays constant.
Microsoft Certified
MCSD: App Builder and Xamarin Certified Mobile Developer — validated expertise across the .NET platform.
Enterprise Clients
Consulted directly with more than a dozen enterprise customers across logistics, retail, robotics, and consumer goods.
AI Integration
Actively building with LLMs and agentic workflows — bringing AI into the same enterprise environments he's served for years.
Beyond the code
James is originally from New York, although he spent his formative years in Montana before building his career in Minnesota and eventually settling in Texas where he lives with his wife and their two young children.
And whatsoever ye do, do it heartily, as to the Lord, and not unto men
Colossians 3:23