Belitsoft > .NET and Azure Softwarу Development Team Augmentation for a USA Fortune 1000 Company (New York, Telecom, SaaS)

.NET and Azure Softwarу Development Team Augmentation for a USA Fortune 1000 Company (New York, Telecom, SaaS)

Client

Our client is a global fintech and communications company, originally a pure telecommunications business, headquartered in the USA, with a workforce across 6 continents including offices in the UK, Hong Kong, Canada, and beyond.

They have been around since the early 1990s and was on the Fortune 1000 list in 2005.

Today, the company trades on the New York Stock Exchange and in FY2025 generated approximately US$1.2 billion in revenue, producing record profits.

As of March 2026, the company has two key software products central to its growth strategy. One of these is a prepaid international calling, mobile top-up app and money transfer service for U.S. immigrant and diaspora communities who need to reach landlines and mobiles abroad.

Challenge

Today this multi-service communications and fintech app is one of two key apps driving our client's growth strategy. However, this was not always the case.

Need to Scale Fast

When the client first came to us several years ago, it was just a new product launch with a potential growing user base and a forming market, but everything had to be built from scratch, most importantly quickly, before competitors could react.

Limited In-House Resources

Our client successfully launched their MVP. The telecommunications sector is highly competitive, and competitors often try to copy the product to take over the market following a successful MVP launch. Therefore, the major challenge for our client was to be the first to deliver a complete product, a fully functioning SaaS platform, to the market and secure their position.

Launching first is only the beginning. To keep users and build a strong reputation, the product needs to work perfectly, so the client needed professionals with experience in telecommunication software development.

However, because of their sudden success, the company faced a shortage of developers. Their in-house team wasn't large enough to build a full-scale product quickly.

Moreover, it is difficult to hire, on short notice, a high-quality, product-ready team if you rely only on internal HR resources.

Software Development Team Augmentation

To avoid a slow internal hiring process and product delivery delays, they chose to hire a top IT staff augmentation company to get senior .NET, Azure and Angular skills without interviewing a large number of applicants.

Solution

Process

Results

Belitsoft’s dedicated team has created a scalable, well-designed SaaS application from scratch for the telecommunication giant and solved every single challenge the enterprise faced at the beginning:

  1. to get skilled specialists immediately and scale fast depending on the project scope
  2. to be the first to enter the market with a revolutionary product
  3. to maintain leadership and the major market quote for years thanks to delivering highly performing, responsive software

The new system has received both web and mobile designs and 11 separate versions with multiple languages and different functionality (depending on the legislation of each country).

The Core Features of the SAAS application

  • Administration panel for B2B clients so that the business could adjust rates, promotions, and other specific processes by their needs
  • Management of statistics regarding incoming/outgoing calls for each user
  • Customer billing system that allows customers to make bank transfers even if they don’t have a bank account
  • Tariff plan management that depends on the country and its rates
  • Some marketing tools such as a landing page builder
  • and many more

As the end users of the software are both individuals (B2C) and businesses (B2B), the application has three basic levels of access: personal users, corporate accounts, and functionality for retailers.

Technologies and platforms: ASP.NET MVC, Razor; Entity Framework; T4MVC; NLog; FluentValidation; SimpleInjector; ValueInjecter; NPoco; StyleCop; Unobtrusive ajax; Knockout; jqGrid, datatabeles.js; Oracle Database; Redis; Tests: NUnit

The number of users rapidly exceeded 7 million (!), and everyone could use the app with no performance issues.
They achieved a stable team, a good understanding of the customer’s business, quick scaling, reliable communication, etc., leading to superior performance and high-quality results.

"Belitsoft’s resources were praised for the excellent quality of their development, meeting the expectations. They delivered on time and within specifications — they were outstanding project managers. Overall, their team was professional, dependable, and communicative."

Head of Department of the Enterprise

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