.NET Development Experts
Enterprise .NET consulting, .NET Framework to .NET 8 modernization, and long-term support for organizations with mission-critical C# applications.
PALADEM’s enterprise .NET development experts help engineering teams build, modernize, and sustain mission-critical C# and ASP.NET Core applications. Whether you need a staged .NET Framework to .NET 8 migration, a performance audit on a production ASP.NET Core service, architecture guidance on an Azure deployment, or a long-term partner to maintain a large .NET estate, our work holds up under real engineering scrutiny.
Why Choose .NET?
.NET is the enterprise default for a reason. The unified cross-platform runtime is mature, .NET 8 is the current Long Term Support release, and .NET 9 extends the annual release cadence that organizations can plan around. C# 12 and 13 give teams a modern, expressive language with strong tooling, nullable reference types, records, pattern matching, and first-class async. ASP.NET Core is the default web stack, Entity Framework Core is the ORM of record, and Blazor is a viable choice for specific enterprise scenarios where a shared C# model matters. .NET excels for organizations with large existing .NET estates, mid-market companies standardizing on Microsoft or Azure, shops that want a predictable long-term support cadence, and teams where C# is the lingua franca across back-end services, desktop tools, and internal platforms. The older .NET Framework 4.x is in maintenance mode and still receives security patches, but new capability only lands on modern .NET, which is the reason the migration conversation matters.
Our .NET Services
Custom .NET Application Development
We design and build custom .NET applications end to end, from initial architecture through production deployment. Our work targets current .NET releases with ASP.NET Core, Entity Framework Core, and C# 12 or 13, integrated with whatever database, messaging, and identity stack your organization runs. Every application we ship is architected for the ten-year view, not the launch demo, with clear module boundaries and a test strategy that survives team turnover.
.NET Consulting & Architecture
Our .NET consulting experts advise engineering leaders on the decisions that are hardest to reverse: service boundaries, data-access strategy, identity and authorization, messaging topology, build pipelines, and testing posture. We review existing codebases, identify architectural risk, and deliver written recommendations your team can execute. When it helps, we embed alongside your engineers to model the patterns rather than just describing them.
.NET Framework to .NET 8 Modernization
This is our marquee .NET engagement. We treat the move from .NET Framework 4.x to .NET 8 as staged, module-by-module work governed by our Software Stewardship Framework, not a rip-and-replace rewrite. The application remains shippable throughout. A typical sequence begins with a portability assessment across projects and dependencies, moves shared libraries via multi-targeting, migrates individual services or web projects in priority order, replaces or adapts framework-only APIs, and finishes by retiring the last .NET Framework surface. Business delivery continues during the migration, and the codebase emerges on a supported long-term runtime rather than stranded on a maintenance-mode platform.
Performance Optimization & Cloud Readiness
ASP.NET Core on modern .NET, combined with Azure or containerized hosting, is usually the largest cost lever available. We profile hot paths with dotTrace, PerfView, and dotnet-counters, tune EF Core queries and caching, address allocation and GC pressure, right-size the hosting tier, and introduce containerization or Azure App Service, Azure Container Apps, AKS, or equivalents where they actually reduce operational cost. The goal is measured improvement, not architecture theater.
.NET Support & Maintenance
We provide ongoing support for production .NET applications, including major-version upgrades, security patching, dependency management, bug triage, and feature work. Our maintenance engagements are sized to the real surface area of your codebase and keep your application current with the annual .NET release cadence rather than letting it drift until the next upgrade becomes a crisis.
Why PALADEM?
- Built for Enterprise .NET. Our .NET work targets long-lived, mission-critical applications where maintainability, supportability, and correctness matter more than speed to launch.
- US-Based Architecture, Global Delivery. Senior US architects lead every engagement, supported by a global engineering team for efficient, cost-effective delivery. See our full services for how we structure engagements.
- Software Stewardship Approach. Every .NET engagement is guided by our Software Stewardship Framework™, which treats your application as a long-lived asset to be cared for across all eight stewardship pillars rather than a one-time deliverable.
Related PALADEM Services
Expertise translates into practice through PALADEM’s service lines. These are the most commonly engaged services alongside or instead of expertise-specific work.
Fractional CTO & CIO Leadership
Continuous executive technology leadership for organizations whose technology decisions are starting to have permanent consequences.
Learn moreCustom Web Application Development
Bespoke web applications built and stewarded for the long term by US architecture leadership and a proven global delivery team.
Learn moreSoftware Product Management
Discovery, roadmap, and acceptance discipline that gets the right thing built and shipped on a predictable cadence.
Learn moreAgentic AI Business Automation
Autonomous workflows that reason and act, with the guardrails, checkpoints, and human oversight to keep them safe.
Learn moreUI/UX Design
Interface and experience design grounded in the people who will actually use the system.
Learn moreQA & Testing
Continuous, evidence-based quality validation across automated regression, manual testing, and performance testing.
Learn moreFrequently Asked Questions
How do you approach a .NET Framework to .NET 8 migration?
We treat .NET Framework to .NET 8 migrations as staged, module-by-module work rather than a single cutover. The engagement starts with a portability assessment across projects, dependencies, and runtime APIs, then sequences the migration by risk and business value. Shared libraries commonly move first by multi-targeting, then individual services or web projects follow, with the application remaining shippable throughout. A big-bang rewrite is almost never the right answer once the real cost is modeled against an incremental path.
How do you handle C# language-level upgrades on legacy codebases?
C# language upgrades are decoupled from runtime upgrades wherever possible. We raise the LangVersion on existing projects, introduce nullable reference types gradually, and modernize patterns such as async, records, pattern matching, and primary constructors in the paths where they pay off. Large sweeping rewrites of perfectly working code are avoided. The goal is a codebase that a current team can read and maintain, not a showcase of every new language feature.
What is your approach to hosting and deployment for .NET applications?
We work across Azure, AWS, and on-prem deployments and choose based on the real constraints of the application. Azure App Service and Azure Container Apps are strong defaults for modern ASP.NET Core workloads, AKS and EKS fit larger container estates, and on-prem IIS or Windows Server deployments remain legitimate for regulated or air-gapped environments. Containerization is introduced where it reduces operational cost rather than as a default, and CI/CD is wired to match the team’s existing tooling.
How do you tune .NET application performance and memory?
Performance work starts with measurement. We use dotTrace, PerfView, dotnet-counters, Application Insights, and database query profiling to find the actual hot paths before changing code. From there we prioritize fixes by impact: async hygiene, allocation reduction, span and memory usage in hot code, EF Core query tuning, caching strategy, JIT and GC configuration, and connection-pool sizing. The deliverable is a prioritized plan with measured before and after numbers.
How do you manage .NET long-term support windows and upgrade cadence?
Microsoft ships a new major .NET release every November, with Long Term Support releases supported for three years and Standard Term Support releases for eighteen months. We plan each application’s upgrade cadence against that calendar, target LTS releases for long-lived systems, and schedule upgrades far enough in advance that they never become emergencies. The goal is a codebase that stays current by design rather than drifting into an expensive catch-up project.