Custom .NET Development Services
to Power Your Business Apps

Get full-cycle .NET application development services to support your growth — from API-first architectures and secure enterprise systems to legacy modernization, performance optimization, and seamless cloud integration.

Talk to a .NET expert

  • Top 1% of global
    Software Service providers

  • ISO 27001 certification
    by Bureau Veritas

  • GDPR-Compliant processes
    for responsible data protection

  • AWS trusted infrastructure
    for scalable solutions

  • Bureau Veritas —
    an independent global leader in testing, inspection, and certification.

Solving Performance, Maintainability, and Integration Issues with .NET

Is innovation slowing because your systems are aging, maintenance costs are soaring, or the current tech stack doesn’t scale? With the Microsoft .NET ecosystem, you can build reliable, future-ready applications with minimal disruption. Whether you’re migrating, integrating, or starting fresh, custom .NET software development provides a solid foundation for long-term growth.

  • Scalability Without Rewrites

    .NET’s modular, service-oriented architecture allows your application to grow with your business. You can scale efficiently while keeping the functionality that already works.

  • Smooth Integration with Your Existing Systems

    If tightly coupled legacy systems are holding you back, . NET’s interoperability makes it easier to bridge the old and new, allowing you to add new features without tearing down the existing ones.

  • Security and Compliance by Design

    Security is a top concern if your product lives under HIPAA, PCI DSS, or GDPR. With built-in frameworks and support for identity management, .NET helps you build compliant applications with fewer vulnerabilities.

  • Long-Term Maintainability

    Technical debt slows teams down. Clean code practices, tooling support, and strong typing in .NET make long-term maintenance easier and more predictable, especially in enterprise environments.

  • Cross-Platform Flexibility

    Your team shouldn’t be locked into one environment. With .NET MAUI, Blazor, and cloud-native support, you can build apps across desktop, mobile, and cloud using a shared codebase.

  • Strong Community and Ecosystem

    Uncertainty around vendor lock-in or niche tech stacks can cause hesitation. With .NET, you tap into a vast open-source ecosystem backed by Microsoft and an active global community.

Our .NET Software Development Services

We help businesses build secure, scalable, and maintainable applications using the latest in .NET and Microsoft technologies, whether you need a partner for greenfield development or support with a legacy system. We offer a full range of ASP.NET development services tailored to support your product goals, technical constraints, and long-term roadmap.

  • Custom ASP.NET Application Development

    We build secure and scalable web applications using ASP.NET Core, tailored to your specific workflows and business needs. Whether you’re targeting internal tools or client-facing platforms, we create structured, high-performance solutions. Our code is clean, maintainable, and built to last.

  • Legacy System Modernization

    Outdated .NET Framework systems can become costly and fragile. We help you refactor or rebuild legacy applications using modern .NET architecture, preserving critical functionality while improving code quality, performance, and maintainability.

  • API Design and Integration

    We design custom RESTful APIs and integrate third-party services to connect your software ecosystem. Whether you’re building a multi-system platform or enabling partner access, we build secure and well-documented interfaces. Our approach ensures future extensibility and minimal downtime.

  • Cloud-Native .NET Development

    Take full advantage of Azure and other cloud platforms by building apps designed for the cloud. We help you develop scalable microservices, set up CI/CD pipelines, and optimize for performance and cost-efficiency. You get better uptime, faster releases, and room to grow.

  • Microservices & DDD Implementation in .NET

    Using domain-driven design, we define service boundaries and model your core domains. Our team builds ASP.NET Core microservices with well-defined contracts, resilient communication, and built-in observability. The result: independent deployments, faster change cycles, and a platform that scales with your roadmap.

  • Performance Optimization and Code Audits

    Slow systems frustrate users and drain budgets. We perform in-depth audits to identify bottlenecks in your application’s code, architecture, or database usage. You’ll get actionable recommendations to improve speed, reliability, and scalability.

  • DevOps and CI/CD for .NET Projects

    We streamline your delivery pipeline using Azure DevOps, GitHub Actions, or other tools. This enables faster releases, consistent testing, and fewer bugs in production. Our DevOps support fits into your existing workflows with minimal friction.

  • Custom Workshops and Technical Consulting

    Need help aligning your tech team or planning a new build? We offer custom workshops on .NET best practices, architecture design, and performance strategy. Each session is tailored to your business context and delivered by experienced senior engineers.

  • Need a custom .NET solution built around your architecture?

How We Work: Flexible Cooperation Models

Every organization is different, and so is every build. We offer flexible engagement models to match your goals, internal capabilities, and delivery timeline, whether you need ongoing support, a defined outcome, or targeted technical expertise.

  • Dedicated Development Teams

    Direct communication and control

    Work with a cross-functional .NET team built around your needs. We provide dedicated engineers, QA, DevOps, and other roles that integrate into your workflows and feel like part of your team. You can stay hands-on or let us handle delivery while you focus on the bigger picture. This model works well for long-term projects, growing platforms, or filling skill gaps with reliable support.

  • Project-Based Solutions

    End-to-end support

    Need a .NET application built, migrated, or modernized on a defined timeline and scope? We take ownership of delivery, from discovery and planning through development and launch. We start by understanding your goals, tech setup, and priorities to design the right solution. Whether it’s a portal, internal tool, or microservice, we build around your needs, with future changes in mind.

  • Custom Tech Workshops for Teams

    Hands-on team training

    Help your team grow with hands-on, practical .NET workshops led by senior engineers. Each session is tailored to your stack, use case, and experience level, covering architecture, performance, testing, and cloud strategy. You get targeted expertise that fits into your development workflow.

Tell us about your goals and setup, and we'll recommend the model that works best.

Tools & Technologies We Use

We work with a modern .NET stack to develop scalable, secure, and high-performance applications. We follow a technology-agnostic approach: our team selects tools based on your project’s architecture, infrastructure, and integration requirements, balancing reliability and flexibility.

  • .NET Platform & Languages

    • .NET 10
    • C#
    • F#

  • Web, UI & Cross-Platform Frameworks

    • ASP.NET Core
    • Razor
    • Blazor
    • .NET MAUI

  • Frontend & Web Technologies

    • React
    • Angular
    • Vue.js
    • TypeScript
    • JavaScript
    • HTML5
    • CSS3

  • Databases, Caching & Data Access

    • SQL Server
    • PostgreSQL
    • MySQL
    • MongoDB
    • Azure Cosmos DB, Redis
    • Entity Framework Core
    • Dapper
    • LINQ

  • Cloud, Containers & Infrastructure

    • Microsoft Azure
    • AWS
    • Docker
    • Kubernetes
    • Terraform

  • CI/CD & Automation

    • Azure DevOps (Azure Pipelines)
    • GitHub Actions
    • GitLab CI/CD
    • Jenkins

  • Testing & Code Quality

    • xUnit
    • NUnit
    • Moq
    • Postman
    • Selenium
    • Playwright
    • SonarQube

  • Monitoring & Observability

    • Prometheus
    • Grafana
    • New Relic
    • ELK Stack

When Is .NET the Right Choice for Your Project?

.NET is not the answer to every problem, but it is a strong option for many business-critical applications that need long-term support, solid performance, and maintainable architecture. If your project depends on the Microsoft ecosystem, complex integrations, legacy modernization, or cross-platform development, the criteria below can help you assess the fit.

  • You’re building within the Microsoft ecosystem.

    .NET works naturally with Azure, Microsoft 365, Microsoft Entra ID, and other Microsoft services. This can simplify integration when your organization already relies on these platforms.

  • You need long-term platform support.

    Regular releases, LTS versions, extensive documentation, and a large developer community make .NET suitable for products expected to evolve over several years.

  • You’re dealing with complex integrations or legacy modernization.

    .NET supports interoperability with existing systems and offers established tools and migration paths for gradually modernizing older applications.

  • You need to support several platforms.

    ASP.NET Core, Blazor, and .NET MAUI cover web, desktop, and mobile development within the broader .NET ecosystem. Depending on the product architecture, teams may be able to share code, libraries, and engineering practices across applications.

Not sure whether .NET fits your architecture and long-term plans? Let’s review the requirements together.

Meet Your .NET Professionals

We work with experienced .NET professionals who bring a mix of technical depth, hands-on project experience, and a collaborative mindset. Our teams include a balance of senior engineers who lead architecture and delivery and mid-level developers who bring momentum to fast-moving projects. Whether you’re building complex enterprise software or extending an existing solution, we match you with people whose skills align with your goals. Below are examples of typical roles available through our network.

  • $29/h

    Middle .NET Developer

    Adam V., 2+ years of experience
    Adam boasts hands-on experience in all phases of the software development lifecycle, from gathering project requirements to design, development, testing, and implementation.
    • C#, .NET / .NET Core, C# ASP.NET Core
    • JS (React / Angular / Vue)

    Request full CV

  • $52/h

    Angular & TypeScript Developer

    Łukasz F., 5+ years of experience
    Results‑oriented engineer delivering fast, accessible single‑page apps. Hands‑on with Angular 11‑17, RxJS, and NgRx, Łukasz led two migrations from AngularJS and coached junior devs on performance best practices. Recent wins include trimming initial bundle size by 35 % and cutting LCP to < 2s on a high‑traffic SaaS dashboard.
    • Angular Material / SCSS / Tailwind CSS / Bootstrap
    • C#, .NET / .NET Core, C# ASP.NET Core
    • GraphQL
    • JS (React / Angular / Vue)
    • JS/TS: Node.js, Next.js, Express, NestJS
    • PostgreSQL / MySQL / SQL (general) / Snowflake / Redshift
    • Tools/Libs: Jest, Cypress, JUnit, Karma, PHPUnit, RSpec, Capybara
    • TypeScript

    Request full CV

  • $67/h

    API Architect

    Oleh M., 7+ years of experience
    Enterprise-grade architect who has spent 7 + years turning business capabilities into secure, discoverable, and high-performance APIs. Designs and governs multi-cloud, event-driven platforms that connect microservices, external partners, and legacy systems without sacrificing reliability or speed.
    • Apache Kafka / AWS Kinesis / Airflow / AWS Glue
    • API Gateways
    • C#, .NET / .NET Core, C# ASP.NET Core
    • Cloud monitoring (AWS, GCP, Azure)
    • GraphQL
    • IaC/Config: Terraform, CloudFormation (IaC), Ansible
    • Jenkins / GitLab CI / GitHub Actions / Git
    • Microservices
    • Orchestration: Kubernetes, Docker
    • Spring (Boot/WebFlux/Data) / Hibernate / Quartz Scheduler

    Request full CV

  • $23/h

    Middle .Net Developer

    Oleksandr H., 3+ years of experience
    Skilled in .Net MVC, Web API, and Angular. Focuses on clean, maintainable code and best practices.
    • C#, .NET / .NET Core, C# ASP.NET Core

    Request full CV

  • $43/h

    API Developer

    Viktor D., 3+ years of experience
    Results-oriented API engineer with 3+ years of building and maintaining production-grade interfaces that power web and mobile products at scale. Comfortable owning the entire API lifecycle from domain modeling and spec writing (OpenAPI, GraphQL SDL) through secure implementation, automated testing, CI/CD delivery, and post-release optimization.
    • API Gateways
    • C#, .NET / .NET Core, C# ASP.NET Core
    • GraphQL
    • Java
    • JS/TS: Node.js, Next.js, Express, NestJS
    • OAuth2
    • PostgreSQL / MySQL / SQL (general) / Snowflake / Redshift
    • Python (Django/Flask/Fastapi)
    • RESTful APIs

    Request full CV

Our .NET Development Process

Every DotNet development company has a different approach to clients’ needs. We tailor our development process to match your goals, whether you’re building a cloud-native app, modernizing legacy systems, or integrating complex APIs. Our approach prioritizes transparency, maintainability, and quality at every stage. A typical .NET development lifecycle covers:

  • Discovery & Architecture Planning

    Step 1

    We align on business goals, map your existing infrastructure, and define the technical scope. Based on your needs, we propose a .NET architecture that balances quick wins with long-term stability.

  • Solution Design

    Step 2

    Our engineers collaborate with designers and product teams to create user flows, define system components, and outline service interactions. We may prototype key features or validate assumptions before development begins.

  • Development & Integration

    Step 3

    We implement features in iterative sprints, writing clean, testable code in C# and ASP.NET Core. This stage includes API development, third-party integrations, and database logic, with regular code reviews and QA involvement.

  • Testing & Hardening

    Step 4

    We run unit tests, integration tests, and security checks to validate performance and reliability. For enterprise systems, we also focus on edge-case handling, load testing, and compliance requirements.

  • Deployment & Release

    Step 5

    We configure CI/CD pipelines and automate deployment across your environments (on-prem, hybrid, or cloud). Before release, we complete UAT, conduct monitoring setup, and provide detailed handover documentation.

  • Ongoing Support & Optimization

    Step 6

    Post-launch, we stay involved with updates, performance improvements, and support for evolving needs. Our team helps you scale, refactor, or add features based on user feedback and business growth.

Why choose Beetroot for .NET software development services?

Every .NET development company has a different approach to clients’ needs. We tailor our development process to match your goals, whether you’re building a cloud-native app, modernizing legacy systems, or integrating complex APIs. Our approach prioritizes transparency, maintainability, and quality at every stage. A typical .NET development lifecycle covers:

  • Extensive Pool of Certified Experts

    Our access to a vast network of certified .NET professionals allows us to rapidly scale resources and provide specialized expertise for even automation projects of various complexity.

  • Sustainability-Focused Automation

    We recognize the importance of environmental responsibility. We help clients leverage .NET development to optimize resource utilization, reduce waste, and minimize their carbon footprint.

  • Governance and Security

    We understand the critical importance of data security and compliance. We implement rigorous governance frameworks and security protocols to support the integrity and confidentiality of your data.

  • Agile Approach

    We operate with agility and responsiveness. Our client-centric approach emphasizes collaboration, communication, and transparency, ensuring a strong partnership throughout the project.

  • Responsible Development

    Our team is committed to the ethical and responsible use of .NET solutions. We prioritize transparency, fairness, and accountability, ensuring that our products enhance human capabilities.

  • Social Responsibility

    We believe in leveraging technology to create positive social impact. We are committed to responsible automation practices that empower individuals and communities.

What Our Clients Say

Our clients rely on us for support across a range of projects — from enterprise platforms to internal tools. Whether it’s .NET development, design, or long-term support, here’s how teams describe their experience working with us.

  • Adam Wamai Egesa,
    Co-Founder and CTO at Normative

    Beetroot’s breadth of knowledge on different frameworks and technologies is impressive. We were using a somewhat niche or rare framework, and were struggling to find people who even knew about it. Beetroot developers were acquainted with it and easily accomplished tech tasks of all complexity.

Featured Work

We work with companies of all sizes to solve complex technical challenges and bring scalable digital products to life. From modernizing legacy systems to building cloud-native platforms with .NET, our case studies highlight how we align with different business goals, industries, and technical environments.

  • SaaS HR Company

    Helped overcome slow hiring cycles and high employment costs by assembling a dedicated team of Ukrainian developers within weeks. The collaboration has delivered up to 40% cost savings, strong cultural fit, and long-term alignment with the client’s product goals.

    View case

    • Python
    • .NET
    • Flutter

Custom Workshops for Your .NET Team

Upskill your in-house developers with targeted .NET training designed around your stack, product needs, and delivery goals. Whether you’re modernizing legacy systems, scaling architecture, or onboarding new team members, our workshops help your team move forward with clarity and confidence.

  • Strengthen internal capabilities around modern .NET tools, architecture, and performance.

  • Align your team on best practices for scalability, security, and maintainability.

  • Get practical, hands-on guidance tailored to your codebase and tech strategy.

Tell us about your project:

Have a project in mind or exploring whether .NET is the right fit? Fill out the form, and our consultants will follow up shortly to discuss  your goals, challenges, and how Beetroot can assist you.

    FAQs

    Common questions about building, modernizing, and maintaining applications with .NET.

    Nick Tykhomyrov, CBDO, Beetroot

    Nick Tykhomyrov

    CBDO