Net Modernizer Net Modernizer → book_call()
// .NET LEGACY MODERNIZATION

I stabilize and modernize legacy .NET systems that can't afford to fail.

Async remediation, framework upgrades, and infrastructure migrations for mid-market teams drowning in technical debt.

Book a 20-minute call →
20+
YEARS .NET
1,500+
FILES REMEDIATED
SLA
RESTORED
ZERO
DOWNTIME
// WHO_I_HELP

Built for teams running critical legacy .NET systems.

If any of this sounds familiar, we should probably talk.

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Your .NET application runs on end-of-life infrastructure, and every upgrade conversation ends with "we'll do it next quarter."

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Third-party vendors are threatening to cut you off over response time violations, webhook failures, or API contract breaches.

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Async and threading issues are causing production incidents your team knows about but doesn't have bandwidth to systematically fix.

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You're staring at a 1,000+ file codebase with a decade of technical debt and no clear path forward.

// HOW_I_WORK

Three ways to engage.

Productized offerings with scoped deliverables and predictable pricing. No hourly billing surprises. No open-ended retainers that last forever.

Every engagement starts with a 20-minute scoping call. Prices shown are starting points — final pricing depends on codebase size, stack complexity, and timeline constraints.

01 / AUDIT

Async Audit

A systematic scan of your .NET codebase for async and threading anti-patterns — the kind that quietly kill production under load. You get a prioritized remediation plan with file-level specifics, severity rankings, and estimated effort for each fix.

Typical delivery: 1-2 weeks. Final scope and pricing confirmed during kickoff call.

INCLUDES
  • · Full codebase scan for .Result, GetAwaiter().GetResult(), async void, and related patterns
  • · Severity-ranked remediation plan with file-level specifics
  • · HttpClient lifecycle audit
  • · SynchronizationContext and deadlock risk analysis
  • · 30-minute walkthrough call on delivery
FROM $4,500
02 / SPRINT

Stabilization Sprint

Execute the remediation work. Fixed scope, fixed price. Typically pairs with an Async Audit but can stand alone when the work is already scoped.

Typical engagement: 4-6 weeks. Scope and pricing finalized after Async Audit or equivalent discovery.

INCLUDES
  • · Execution of prioritized remediation plan
  • · Code review and pair-programming with your team (optional)
  • · Before/after performance benchmarks
  • · Deployment coordination with your existing processes
  • · Written handoff documentation
FROM $15,000
03 / RETAINER

Fractional Modernization Lead

Ongoing modernization leadership for teams navigating a multi-quarter legacy .NET transition. Twenty hours a week, three-month minimum, structured like a senior IC working inside your team — not a consultant writing reports nobody reads.

Best for organizations committed to modernization but lacking the internal senior bandwidth to drive it.

INCLUDES
  • · 20 hours per week of hands-on engineering work
  • · Technical roadmap development and maintenance
  • · Code review, mentorship, and pairing with internal engineers
  • · Architecture decisions and technical debt prioritization
  • · Weekly progress reporting to your leadership
FROM $8,000 / MONTH
// RECENT_WORK

Stories from the trenches.

Every case anonymized to protect client confidentiality. All outcomes real.

CASE 01 // SLA RESCUE

Third-party integrations at risk in a production document platform

PROBLEM

A mid-market SaaS company running a .NET Core document platform was facing active SLA violations with multiple third-party integration partners. Webhook response times had degraded past contract thresholds. The root cause: pervasive async anti-patterns across a 1,500+ file codebase, accumulated over years of "just ship it" pressure. The CTO was two vendor conversations away from losing critical integrations that would have taken the platform offline for thousands of end users.

APPROACH

Systematic audit of every async call site, prioritized by traffic and integration risk. Remediation focused on the highest-impact paths first: webhook handlers, document processing pipelines, and database access layers. Zero downtime required during remediation. Parallel track: Windows Server infrastructure migration from end-of-life versions to supported releases, coordinated without interrupting the remediation work.

OUTCOME

Response times restored to within SLA. All third-party integrations preserved. Infrastructure brought current. Platform stabilized for continued operation and future scaling.

CASE 02 // PERFORMANCE TRIAGE

A 330GB+ SQL Server bleeding performance under backup load

PROBLEM

A production .NET application was experiencing intermittent transaction timeouts and query slowdowns that correlated with no obvious application-level changes. Internal teams had spent weeks chasing application code and index issues with no resolution.

APPROACH

Traced the performance degradation to VM-level VSS backup overhead interacting with high-transaction SQL Server activity. Isolated the specific backup mechanisms causing lock contention and I/O pressure. Reconfigured backup scheduling, VSS shadow copy behavior, and storage tier allocation.

OUTCOME

Transaction performance restored to baseline. Backup reliability maintained. No application code changes required. Root-cause documentation delivered to internal team to prevent recurrence.

CASE 03 // INFRASTRUCTURE MIGRATION

End-of-life infrastructure migration without service interruption

PROBLEM

A production .NET platform was running on Windows Server 2012 R2, well past end of support, creating security and compliance exposure. The application had grown significantly since deployment, and a naive migration would have meant extended downtime the business couldn't accept.

APPROACH

Multi-phase migration from Windows Server 2012 R2 to 2016, including SQL Server migration, IIS reconfiguration, and deployment pipeline updates. Migration executed in stages with rollback paths at each phase. No service interruption at any point.

OUTCOME

Full infrastructure brought current. Compliance and security exposure eliminated. Platform positioned for future modernization work. Zero production downtime across the migration window.

// ABOUT

Who you're actually hiring.

I'm Ryan Coleman. 20+ years in the .NET ecosystem, from early ASP.NET and .NET Framework through modern .NET Core, .NET 8, and enterprise cloud architectures. Most of that time has been spent on the unglamorous work that keeps production systems alive — async remediation, framework upgrades, infrastructure migrations, database performance triage, and decomposing monoliths that have quietly accumulated a decade of technical debt.

I work with mid-market teams where .NET is load-bearing and stability isn't optional. Not startups looking for a lead engineer, not enterprises looking to fill a req — organizations with real production systems, real technical debt, and real stakes. If that's you, let's talk.

PRIMARY STACK
.NET Framework 4.x → .NET 8
ASP.NET MVC → ASP.NET Core Web API
Entity Framework → Entity Framework Core
SQL Server · Azure · Windows Server · IIS
PowerShell · Git · Azure DevOps
// COMMON_QUESTIONS

Things people ask before we talk.

What if I'm not sure where to start?

That's what the Async Audit is for. It's specifically designed to diagnose the state of your codebase and give you a prioritized plan. Most engagements start with an audit, even if a stabilization sprint ultimately follows.

Do you work with teams, or do you replace them?

Teams. I work alongside your internal engineers, not in place of them. The goal is to get your team operating at a higher level — not to create dependency on me.

Can you help with .NET Framework 4.x upgrades?

Yes. Most modernization engagements start here. Framework 4.x → modern .NET is a well-defined path, and I've done it enough times to have the patterns down.

What about greenfield projects?

Generally no. My specialty is stabilizing and modernizing systems that already exist and already matter. If you're building something new from scratch, I'm not the right fit — you want a product-focused engineering lead, not a legacy specialist.

How are engagements structured?

Scoped and priced during a discovery call before work begins. Audits are typically 1-2 weeks. Stabilization sprints are 4-6 weeks. Retainers are 3-month minimum, 20 hours per week. Standard contract, straightforward change order process. No all-you-can-eat hourly billing.

What if my situation doesn't match your services exactly?

Happens often. Every production system is weird in its own way. Book the 20-minute call and we'll figure out whether there's a fit. If there isn't, I'll tell you that directly.

// READY_TO_SHIP

Let's talk.

20 minutes. No pitch. No pressure. Just an honest conversation about your situation and whether there's a fit.

Book a 20-minute call →

Or email direct: [email protected]