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.NET Application Development Services

Partner Up with .NET Professionals

With a track record of 200+ large-scale .NET projects, ScienceSoft delivers secure and high-performing .NET apps that bring fast ROI.

.NET Application Development Services - ScienceSoft
.NET Application Development Services - ScienceSoft

.NET software development services cover engineering and evolution of web, mobile, and desktop applications with the use of .NET platform. Mature and impact-focused, ScienceSoft builds robust .NET apps from scratch and modernizes legacy solutions fast and at 20-50% reduced costs.

Custom .NET Development Services

ScienceSoft offers a wide range of .NET (Dot NET) services to help enterprises and startups build and manage their .NET applications successfully.

Business analysis and .NET project planning

Equipped with hands-on knowledge of 30+ industries, our business analysts handle needs assessment and high-level scope definition of your .NET project, while dedicated PMs from our Project Management Office outline project requirements, tech stack, schedule, and more in the detailed project documentation.

Tip: Make sure to discuss the integrations your future software needs for our .NET integration architects to draft an integration plan. If required, our developers and DevOps experts will continue with delivering all planned integrations.

UX/UI design

The neat UI mockups you approve before the development launch result from our UX research, in-depth story mapping, and usability testing of wireframes and prototypes. Our UX/UI design experts put users top of mind to deliver vivid, intuitive interfaces that ensure high adoption of your .NET software.

.NET software development

Apart from providing .NET Core, ADO.NET, and ASP.NET development services, ScienceSoft’s engineers leverage Universal Windows Platform, Windows Presentation Foundation, Xamarin, and a wide range of other tools. We guarantee fast and on-time software delivery by establishing Agile & Lean processes and monitoring performance with KPIs (Cycle Time, Lead Time, Deployment frequency, Stakeholder Satisfaction, etc.)

Tip: Feel free to list custom KPIs you want to monitor in your .NET project so that we can add them to our KPI set. We give you access to our log tools and send you regular progress reports to ensure full transparency of cooperation.

.NET application integration

Our integration architects and developers can establish secure, reliable and fast connections between your .NET applications and other internal/external software solutions. We can build custom integration points (including using Azure and AWS integration services) or use ready-to-use ESBs/iPaaS of different providers (Talend, Boomi, MuleSoft, Informatica).

.NET application migration to the cloud

ScienceSoft’s cloud consultants, .NET developers and DevOps engineers can help you create a pragmatic cloud adoption strategy and execute fast, smooth, and reliable migrations of .NET applications to the cloud without unplanned disruptions and with maximum value to your business. We are cloud-agnostic and will find the best suitable option for you out of the main clouds: AWS, Azure, GCP, Racksack, DigitalOcean.

.NET application modernization

ScienceSoft’s .NET experts help businesses professionally revive legacy applications that are up to 20+ years old (!). We thoroughly investigate your legacy application code and infrastructure, restore documentation and describe and implement improvements that can help increase the value of your old apps. These improvements can include updating application architecture and tech stack, optimizing performance and availability, enhancing security, enabling web and mobile access, improving look and feel, enabling CI/CD and DevOps, optimizing operations costs, and more.


ScienceSoft’s 75+ QA experts rely on a robust quality management system backed by ISO 9001 and perform functional, performance, usability, security, exploratory, and other types of testing. With our proprietary Integrated Manual and Automated Testing (IMAAT) approach, we help you reduce testing costs in your .NET project while ensuring its high test coverage.

.NET software support and evolution

We provide L1, L2, and L3 support for your .NET software as well as comprehensive maintenance services that include performance optimization, compliance management, and security monitoring. We also ensure the continuous evolution of your .NET software, which may include adding AI, AR/VR, IoT, blockchain, and other advanced modules.

How We Launch .NET Development Cooperation

1. Request analysis (1 week)


We discuss your .NET development needs with you and define a cooperation model (team augmentation, dedicated team or full outsourcing).

2. (Optional) Screening & interviews (2-5 days)


For a team augmentation model, we provide you with developers’ CVs and arrange interviews with the candidates you shortlist.

3. SLA preparation (2 weeks)


We discuss the services you need within the chosen cooperation model in detail and reflect them in a Service Level Agreement.

4. Cooperation launch (1-2 days)


We set up communication between our developers and you and deliver the service scope steps that were defined in the SLA.

Software We Develop with .NET

Diverse types of software

Of various complexity

  • Large and complex applications that require 50+ FTE teams.
  • Business-critical solutions with strict requirements for performance and availability.
  • Highly secure systems.
  • Applications with multiple integrations.
  • Data-intensive applications.
  • MVPs.
  • Libraries.

For all groups of end users

  • Commercial software products.
  • B2B software.
  • B2E software.
  • B2C software.
  • Custom enterprise platforms and apps for internal use.

The Financial Times Includes ScienceSoft USA Corporation in the List of Americas’ Fastest-Growing Companies 2022

ScienceSoft is one of 500 companies with the highest compound annual growth rate in revenue. This achievement is a result of our unfailing commitment to provide high-quality IT services and find best-value solutions to clients' needs.

Why Leverage .NET

Free distribution and cross-platform development

Modular apps for facilitated deployment & maintenance

Cleaner code with more focused units due to OOP

Skills that Drive Our .NET Development

Frameworks and platforms

Practice 11 years


Projects 85+
Workforce 10+

ScienceSoft cuts the cost of mobile projects twice by building functional and user-friendly cross-platform apps with Xamarin.

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Programming languages and IDEs


Practice 10 years


Projects 50+
Workforce 30

ScienceSoft's Python developers and data scientists excel at building general-purpose Python apps, big data and IoT platforms, AI and ML-based apps, and BI solutions.

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Components and libraries

Reporting tools

Power BI
Practice 7 years

ScienceSoft sets up Power BI to process data from any source and report on data findings in a user-friendly format.

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APIs and integrations

Machine Learning

Frameworks and libraries

Cloud services

Architecture Patterns We Design


  • Microservices
  • Multi-tenancy
  • Headless (Decoupled)
  • Serverless
  • DDD
  • CQRS


  • PWA
  • SPA
  • MVC
  • MVVM
  • Reactive
  • Micro-frontends

Our .NET Software Architecture Sample

.NET Software Architecture Sample

Want to Rearchitecture Your .NET Software for the Cloud?

ScienceSoft’s architects can restructure your .NET software and move it into the cloud while keeping the business logic intact. Get ready to reduce your IT infrastructure costs by 37% and increase .NET app performance by 19%!

Coding best practices

  • Adherence to .NET coding guidelines.
  • Adherence to data security practices (ISO 27001).
  • Descriptive names for all variables and in-code comments.
  • Code documentation.
  • Code split into short and focused units.
  • Use of version control tools.
  • Ensured code portability.

Unit testing

  • Unit tests are created as part of a functional requirements specification.
  • Tests verify code behavior in response to the input of standard, boundary, and incorrect values.
  • Tests are rerun after each significant code change to guarantee proper performance.

Code review practices

  • Ad hoc review.
  • Peer review.
  • Code walkthrough.
  • Code inspection.

Code quality metrics

  • Maintainability Index (MI).
  • Cyclomatic Complexity (CC).
  • Depth of Inheritance.
  • Class Coupling.

Our Code Sample

The code below reflects a retry mechanism in HTTP communication. The mechanism handles transient faults such as momentary network connectivity loss, temporary unavailability of a service, or timeouts.

.NET Software code example

Learn more about our approach to quality management.

Need .NET Developers for a Dedicated/Augmented Team?

ScienceSoft is ready to lend you the skills of its highly productive and flexible .NET experts for your desktop, mobile and web development projects. They will adjust to your processes and requirements in under 5 days!

We Know Your Industry

Click on the icons below to learn more about our .NET experience in a specific industry.

What Our Customers Say

  • ~5-8

    years of .NET project management expertise held by each PM

  • 1.5-2x

    faster development due to high productivity and outstanding .NET proficiency

  • 20-50%

    project cost reduction with Agile, DevOps & component reuse

Choose Your Cooperation Model

Team augmentation with .NET developers

Get over skill deficiency or bridge staff gaps in your project with the professional assistance of ScienceSoft’s .NET developer(s).

Pricing model: T&M by an hourly rate (rate depends on the work scope and a developer's seniority level).

I’m interested

Dedicated .NET team

Hire a team of skilled .NET developers managed by ScienceSoft’s PMO to deliver your .NET software project on time and on budget.

Pricing model: T&M by an hourly rate or T&M with a cap (when cost mitigation is a higher priority than flexibility).

I’m interested

Full .NET development outsourcing

Entrust implementation, support, and evolution of your .NET project to ScienceSoft’s BAs, UX/UI designers, developers, PMs and QAs.

Pricing model*: Fixed price (for finite requirements) or T&M by an hourly rate (for long-term cooperation).

I’m interested

*Tip: As costs and time of fully outsourced development depend on the scope of a .NET project, we recommend opting for an MVP to achieve minimized budget and fast time to market (2-3 months).

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