.NET Software Development Services
Need to build something solid, fast, and secure? Our .NET software development services help you launch custom apps, modernize legacy systems, and confidently scale. Whether you're starting from scratch or looking to expand, our team’s got the experience to make it happen.
At Zymr, we bring 13+ years of .NET engineering expertise with a proven track record across 40+ enterprise-scale projects in industries like fintech, healthtech, cybersecurity, and cloud infrastructure. Our teams have delivered 25+ cloud-native .NET platforms, modernized 15+ legacy systems, and built solutions that support millions of monthly users.
As a .NET Core development company, we help you get to market faster and stay there. Whether it’s web apps, cloud systems, or backend services, we write clean code, design for scale, and keep your business goals front and center. We don’t just write solid code we align software to business outcomes. Expect enterprise-grade security, agile delivery, and cost efficiency up to 30–50% over traditional in-house teams.
Why Choose .NET for Your Next Project?
Agile isn’t about unchecked spending but delivering value with control. Agile keeps budgets on track through short delivery cycles and transparent sprint reports. At Zymr, we tailor governance models so stakeholders know what’s being built, its cost, and delivery timeline—enabling smart decisions without slowing progress.
It also supports microservices, helping you break down large systems into manageable services for faster releases and easier updates. With clean architecture, testability, and deep Azure integration, your software is built to scale, secure, and maintain from day one.
Key Benefits of Choosing .NET:
- Build secure, enterprise-grade platforms with confidence
- Develop once, run anywhere using .NET Core
- Break down complexity with microservices
- Speed up delivery and reduce tech debt
- Create clean, maintainable code from day one
- Build fast, reliable backend systems
- Launch secure, scalable APIs with ease
- Seamlessly integrate with Azure cloud service
Zymr’s .NET Development Services
Scoping & Planning
Define the right architecture, roadmap, and sprint plan before writing a single line of code.
UI/UX Design
Build intuitive, responsive user experiences with wireframes, prototypes, and clean UI components.
Web Application Development
Develop secure, scalable web platforms using ASP.NET Core and modern cloud-native design.
Mobile App Development
Use .NET MAUI or Xamarin to build cross-platform mobile apps with native performance and shared code.
Desktop Software Engineering
Deliver rich, high-performance desktop apps for Windows, macOS, or Linux using WPF or .NET Core.
System Integration Services
Connect your .NET apps with internal systems, third-party APIs, and enterprise platforms.
Cloud Migration
Replatform and refactor .NET workloads for Azure, AWS, or GCP with zero-downtime deployment.
Legacy App Modernization
Upgrade aging .NET applications by improving architecture, performance, and security posture.
Automated Testing & QA
Ensure code quality with robust test automation pipelines across unit, integration, and UI layers.
Ongoing Support & Enhancements
Maintain, scale, and evolve your .NET applications with structured L2/L3 support and new feature rollouts.
Our .NET Development Expertise
We offer end-to-end .NET services to help you build, modernize, and scale powerful software that’s ready for the enterprise
Enterprise .NET Solutions
- Build large-scale, secure applications for business-critical operations
- Design custom modules for finance, healthcare, logistics, and more
- Integrate with internal systems, APIs, and third-party services
.NET Migration and Modernization
- Move from legacy .NET or other platforms to .NET Core
- Refactor outdated code for better performance and maintainability
- Improve UI, architecture, and database structures
.NET Cloud Development
- Design cloud-native applications with Azure or AWS
- Use containerization with Docker and Kubernetes for scalability
- Enable auto-scaling, CI/CD, and performance monitoring
ASP.NET MVC Application Development
- Build responsive, high-performance web applications
- Use Razor views, controllers, and models for clean separation of logic
- Support for both new builds and legacy ASP.NET maintenance
.NET Consulting Services
- Assess architecture, code quality, and performance gaps
- Recommend best-fit tools, frameworks, and cloud strategies
- Provide hands-on technical guidance for in-house teams
API Development Using .NET
- Build secure, scalable REST or GraphQL APIs
- Support integration with frontend, mobile, or third-party systems
- Ensure authentication, rate limiting, and performance optimization
.NET Microservices Architecture
- Design modular services for better flexibility and fault isolation
- Set up service discovery, communication, and scaling strategies
- Ideal for large, fast-moving development teams
Custom .NET Application Development
- Build tailored applications for specific business workflows
- Use clean code principles and domain-driven design
- Support integrations, automation, and role-based access
Software We Develop with .NET
Our .NET engineering spans across platforms, industries, and business functions. Here's how we categorize the software we build:
By Application Type
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Web applications and portals
Mobile apps (cross-platform with .NET MAUI or Xamarin)
Desktop applications (WPF, WinForms)
APIs and backend services
Internal admin panels and operational tools
Real-time data systems and notification engines
By Technology Domain
Cloud-native solutions using Azure
IoT control and monitoring systems
AI-powered decision engines and analytics tools
Blockchain-backed smart contract integrations
Big data ingestion and processing pipelines
Event-driven architectures with microservices
By Use Case
Custom enterprise software for internal and external users
SaaS platforms for multi-tenant service delivery
Productized tools for resale or licensing
Modular platforms for fast feature expansion
System integration hubs and middleware layers
By Business Function
Sales, CRM, and customer engagement tools
Supply chain, procurement, and inventory systems
Financial planning and billing platforms
HR and employee productivity apps
Project and resource management tools
Compliance, audit, and security dashboards
Business intelligence and analytics portals
Tech Stack We Use for Our .NET Application Development Services
We use a robust mix of modern and proven technologies to build secure, high-performance, and scalable .NET applications.
Core Frameworks and Platforms
.NET Core / .NET 6+
ASP.NET Core MVC and Web API
Blazor (Server and WebAssembly)
Entity Framework Core
Windows Presentation Foundation (WPF)
.NET MAUI / Xamarin for mobile
Languages and Runtime
C#
F# (for functional components)
VB.NET (for legacy modernization)
Frontend Technologies
React.js
Angular
TypeScript
HTML5 / CSS3 / Tailwind
Razor Pages
Cloud & Hosting
Microsoft Azure (App Services, Azure Functions, Cosmos DB)
AWS (Elastic Beanstalk, Lambda with .NET Core)
Google Cloud Platform (Cloud Run with .NET support)
Docker and Kubernetes for containerized deployment
Databases and Storage
SQL Server
PostgreSQL
MongoDB
Azure Cosmos DB
Redis for caching
Elasticsearch for advanced search
DevOps and CI/CD
GitHub Actions
Azure DevOps
Jenkins
Terraform and Helm
Docker Compose for local development
Security and Identity
OAuth2 and OpenID Connect
JWT-based authentication
Active Directory and Azure AD
Role-based access control
TLS encryption and secure storage practices
Monitoring and Logging
Serilog and NLog for structured logging
Application Insights
Grafana and Prometheus
Sentry for error tracking
Our Approach to .NET Development
We don’t do one-size-fits-all software. At Zymr, our approach is built around one core idea your product has to deliver business value fast and keep performing at scale.
We Start by Understanding, Not Just Coding
We start by asking the right questions, not pitching a tech stack. What are you trying to solve? Who’s using it? What’s broken today? From there, we design lean, scalable systems that solve for now and scale for what’s next.
We Build Incrementally and Stay Transparent
We build in small, tested increments so you can see progress in real time not six months later. And we stay brutally honest. If something doesn’t make sense, we’ll say so. If there's a smarter way to do it, we’ll do that instead.
Product Thinking Meets .NET Expertise
Our teams combine product thinking, clean architecture, and deep .NET expertise to ship software that’s fast, secure, and future-proof. We work in sprints, run on feedback, and measure success by how well your users actually use what we build.
Best Practices to Ensure Code Quality
At Zymr, code quality is a discipline we engineer into every sprint. Our .NET teams follow a set of non-negotiable practices that ensure the code is not just functional but scalable, secure, and future-proof.
.NET Coding Standards
- Follow Microsoft’s official .NET coding conventions across all layers
- Use clear, descriptive variable and method names no cryptic shortcuts
- Keep functions short, focused, and purpose-driven
- Document public methods and critical logic paths with XML or inline comments
- Maintain consistent folder and namespace structures for readability
Security and Compliance
- Apply secure coding practices aligned with OWASP and ISO 27001 standards
- Validate all inputs, sanitize outputs, and enforce strong access control
- Ensure encryption for data at rest and in transit
- Conduct static security scans and threat modeling early in dev
Version Control and Code Portability
- Use Git with structured branching (GitFlow or trunk-based)
- Write environment-agnostic code using config abstractions
- Ensure app portability across Windows, Linux, and containers using .NET Core
Testing and Testability
- Write unit tests for all critical logic with coverage tracked in CI
- Cover normal, edge, and failure cases using test-driven practices
- Run tests after every major commit and as part of CI pipelines
- Maintain mockable architecture to simplify integration testing
Code Reviews and Peer QA
- Every PR is peer-reviewed no exceptions
- Reviewers check for logic, structure, naming, and anti-patterns
- Conduct ad hoc reviews, scheduled walkthroughs, and team inspections
- Encourage open commenting and knowledge sharing in the review cycle
Code Quality Metrics We Track
- Maintainability Index to track long-term health of modules
- Cyclomatic Complexity to identify overly complex logic
- Class Coupling to control tight dependencies
- Technical debt is logged and prioritized alongside user stories
Process to Outsource .NET Development to Zymr
Outsourcing your .NET development to Zymr is a structured, transparent process designed to move fast without cutting corners. Here's how we typically engage:
Discovery & Requirements Alignment (3–5 business days)
We start with a working session to understand your business goals, technical landscape, and priorities. Whether it’s a new product, modernization, or extending an internal team, we identify where Zymr can add the most value.
Architecture Review & Engagement Planning (1 week)
Our technical leads review any existing architecture, codebase, or specs and propose a delivery plan. You’ll get clear recommendations on team structure, tech stack, timelines, and delivery milestones.
Team Structuring & Optional Interviews (2–4 days)
If you're building a dedicated team, we shortlist vetted .NET engineers, architects, and QA specialists. You can interview or opt to onboard based on our recommendations. We’re flexible; this step is optional.
Contracting & SLA Definition (1–2 weeks)
We finalize scope, pricing, KPIs, and responsibilities. Our legal and delivery teams help structure SLAs that support your business model whether fixed scope, agile sprints, or T&M.
Onboarding & Kickoff (1–2 days)
We set up secure access, DevOps environments, and tooling. Our project leads align on sprints, communication cadence, and first-week deliverables. You’ll see working code early and often.
See How Our .NET Development Drives Impact
Case Studies
Modernizing a Legacy ERP for a Global Logistics Firm
A multinational logistics company was struggling with a 15-year-old ERP system that couldn’t scale, lacked API access, and was riddled with performance bottlenecks. Zymr was brought in to modernize their core backend using .NET Core and a microservices architecture. As a result, the client saw a 40% improvement in system performance, 50% faster API integrations, and reduced their time-to-market for new features by over 30%.
Project Details →
Case Studies
Building a SaaS CRM Platform for a Fintech Startup
A fast-scaling fintech startup needed to build a compliant, cloud-native CRM product tailored for lending institutions. They chose Zymr to architect and develop the platform from the ground up.We delivered a multi-tenant SaaS platform using ASP.NET Core, Blazor for the frontend, and Azure Cosmos DB for secure, scalable storage. The system featured robust role-based access, integrated KYC modules, and real-time analytics dashboards. The client launched within 6 months, secured their Series A, and now serves over 120 financial institutions.
Project Details →
Case Studies
Real-Time Asset Monitoring for a Renewable Energy Provider
A renewable energy company needed a custom software solution to track, analyze, and respond to sensor data from wind and solar assets across multiple regions.Zymr built a real-time monitoring system using .NET Core with SignalR, pushing live telemetry to a central dashboard. We deployed the system on Azure Kubernetes Service (AKS) and integrated alerting workflows tied to asset health. This reduced downtime by 35% and enabled proactive maintenance scheduling across all
Project Details →
Why Choose .NET for Your Next Project?
We’re not just another .NET vendor. Zymr is a Silicon Valley-born engineering partner with over 13 years of experience building secure, scalable, and modern software systems for startups, mid-market companies, and global enterprises.
12+ years of real-world delivery experience
We’ve built everything from cloud-native SaaS platforms to compliance-heavy enterprise systems. Our teams don’t just know the tools we’ve solved real problems with them, at scale.
Full-stack .NET expertise with cloud-first focus
Our developers are fluent in ASP.NET Core, Blazor, Entity Framework, and .NET MAUI and we specialize in building scalable systems using Azure, AWS, and Kubernetes.
Cross-functional teams, not just coders
When you work with us, you get more than developers. You get architects, QA engineers, DevOps experts, and product thinkers who collaborate to move your roadmap forward.
Certified cloud and DevOps professionals
Our bench includes Microsoft Certified Azure Developers, AWS Solution Architects, and CI/CD engineers who know how to ship secure, cloud-native apps fast.
Proven track record across industries
We’ve delivered .NET projects for fintech platforms, healthcare systems, logistics apps, cybersecurity products, and enterprise marketplaces with performance and scale built in.
Enterprise discipline, startup agility
We bring the process maturity of a global delivery firm with the flexibility of a startup mindset. Whether you need structured delivery or agile velocity, we adapt to your rhythm.
FAQ
Everything You Need to Know About Our .NET Development
Is .NET suitable for both startups and large enterprises?
Answered by: AVP, Engineering Strategy, Zymr Absolutely. Startups value .NET for its rapid development, pre-built libraries, and cross-platform capabilities through .NET Core. We’ve helped several early-stage clients build MVPs and scale their SaaS platforms using .NET. On the other hand, large enterprises choose .NET for its ecosystem maturity, enterprise security, Azure compatibility, and ability to handle compliance-heavy environments. It’s rare to find a framework that scales this well across both ends of the spectrum and that’s exactly why we recommend .NET to a diverse set of clients.
How long does it take to build a .NET application?
Answered by: Sr. Program Manager, Zymr Timelines vary based on scope, but here’s a ballpark: an MVP with core features can take 8–12 weeks, while a full enterprise-grade solution may require 4–6 months or more. Factors like third-party integrations, compliance requirements, and legacy dependencies can add complexity. We typically run discovery and architecture planning upfront so the timeline is grounded in real scope not guesswork. If you’re on a tight go-to-market deadline, we can also phase delivery to get you live faster without sacrificing quality.
Can you work with fixed-price as well as time & material models?
Answered by: VP, Client Engagements, Zymr
Yes, we do both depending on the project fit. Fixed-price works well when the scope is clearly defined and unlikely to change. We use detailed estimation models to minimize risk on both sides. For agile builds, integrations, or evolving products, we recommend a time & material (T&M) model. This offers more flexibility and room to pivot based on real-world feedback. Either way, our clients stay in control with weekly velocity reports, sprint-level visibility, and clear cost tracking.
Can .NET handle complex, high-load enterpris e systems?
Answered by: Principal .NET Engineer, Zymr Yes, and it does so reliably. .NET is designed for performance and concurrency at scale. It supports async programming natively, works well with high-throughput architectures, and integrates seamlessly with load balancers, message queues, and distributed caching systems. We’ve used .NET to build platforms handling millions of API calls per day, complete with horizontal scaling on Azure Kubernetes Service and autoscaling logic baked into the application. If you’re planning for scale, .NET is a safe bet.
What factors impact the cost of a .NET software project?
Answered by: Director, Delivery Operations, Zymr
A few key things:
Scope (number of features, users, workflows) Architecture complexity (monolith vs. microservices, cloud-native vs. hybrid) Compliance needs (HIPAA, SOC2, GDPR) Integration requirements (third-party APIs, legacy systems)
Testing and DevOps maturity (manual vs. automated CI/CD, staging environments)
In general, we advise clients to start with a well-defined scope and build iteratively. Whether it’s fixed-price or T&M, we’re transparent from day one so there are no surprises.
Let's Connect
Future-Proof Your Software with Expert .NET Engineering
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Jay Kumbhani
AVP of Software Engineering, Zymr
From modernizing legacy systems to building greenfield enterprise apps, our .NET development services are built for scale and longevity. With 12+ years of hands-on experience, we use the full Microsoft stack, from ASP.NET Core to Azure, to craft performance-optimized, maintainable solutions that are ready for real-world complexity.
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