Services

Application Development

Custom applications built on Azure and the Microsoft stack, from greenfield development to legacy modernization. We design, build, and deliver software that solves real business problems and hands off to your team ready to extend.

Talk to us about application development Related case studies

What's included

Three things we focus on.

Custom application development

Web apps, APIs, and internal tools built on .NET, Azure App Service, and the Microsoft stack. Designed to be maintainable, not just functional on day one.

Power Platform and low-code

Power Apps, Power Automate, and Power Pages where the problem fits. Fast to build, owned by your team, integrated with the data you already have in Azure.

Legacy modernization

Move aging on-prem applications to Azure without big-bang rewrites. We identify the right modernization seam, phase the work, and keep the business running throughout.

How we engage

Whatever shape fits the work.

Fixed-scope build

A well-defined application delivered end-to-end with clear acceptance criteria and a handoff plan.

Embedded development

Senior Nextekk engineers working inside your team for a defined engagement window.

Modernization program

Multi-phase migration from legacy systems to Azure, phased so each stage ships value.

Common use cases

What we get asked to do.

Build a greenfield web application on Azure App Service and Azure SQL
Migrate a legacy on-prem .NET application to Azure with phased modernization
Develop a customer-facing self-service portal on Power Pages
Build internal workflow and approval tools on Power Apps and Power Automate
Develop a REST API layer to connect legacy systems to modern applications
Replace a brittle Excel-based process with a proper web application
Build an Azure Functions-based integration between two enterprise systems
Modernize a legacy WinForms or WebForms application to a cloud-native stack

Why Nextekk

What we bring to application development.

Software your team can own

Every application we build includes documentation, a handoff plan, and an architecture your team can maintain and extend without us. Code that only the original author understands is a liability.

Azure-native by default

App Service, Azure SQL, Entra ID, Key Vault, Application Insights. The patterns that make software operable, observable, and secure long after the engagement ends, not just functional on day one.

Power Platform when it genuinely fits

We recommend low-code where it is actually the right tool, not as a cost-cut that creates future tech debt. When it fits, it builds faster and your team can maintain it without engineering involvement.

AI in the build process throughout

Our engineers use AI tooling throughout every build: faster delivery, better test coverage, earlier issue detection. Faster timelines without the junior-resource padding that inflates most development projects.

Business value

What clients typically see.

50% faster time-to-market vs. comparably scoped in-house builds, based on AI-paired delivery and no ramp time

35% lower total cost of ownership with Azure PaaS vs. self-managed VMs over a three-year horizon

90%+ automated test coverage standard on all Nextekk application deliverables

3x faster maintenance cycles when applications are built with documented architecture and clean handoff packages

Ready to talk about application development?

Tell us what you are trying to change. We will either be useful, or point you to who would be.

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