.NET Application Development

.NET Development Services For Web, API, And Business Applications

NextPage builds and modernizes .NET applications with C#, ASP.NET Core, APIs, business workflows, Microsoft integrations, Azure delivery, testing, security, and long-term support.

See how we work

Built for

CTOs, IT leaders, and product teams that need broad .NET application delivery rather than only a .NET MAUI mobile engagement.

20+
years building software
15M+
users served across products
Web + mobile
full product delivery
India
engineering team with global delivery
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A .NET roadmap that separates immediate stabilization from modernization and new product work.

Maintainable C# applications and APIs with clear domains, contracts, security, and tests.

A controlled cloud and release model with monitoring, rollback, and long-term support.

Why this matters

Problems we remove before they become expensive

The best outsourcing and software projects work because expectations, ownership, and delivery rituals are clear from the first week.

A legacy .NET Framework application is expensive to change and difficult to release safely.

Business rules are trapped in tightly coupled UI, database, and integration code.

APIs, identity, permissions, background work, and error handling have inconsistent patterns.

Teams need to decide what to retain, upgrade, replatform, or rebuild without losing working behavior.

Azure and Microsoft integrations need application-level planning rather than infrastructure alone.

Tests, observability, security evidence, and post-launch ownership are incomplete.

What we build

A focused scope for this service

We shape the scope around the result you need, the systems you already have, and the first release that can create value.

ASP.NET Core Applications

Build web applications, portals, APIs, admin systems, and business workflows using supported .NET foundations.

  • ASP.NET Core and C#
  • Role-based product workflows
  • Background jobs and notifications

API And Integration Engineering

Create reliable contracts between applications, mobile products, partners, and enterprise systems.

  • REST and event-driven APIs
  • ERP, CRM, payment, and partner integration
  • Identity, permissions, and audit trails

Legacy .NET Modernization

Improve .NET Framework and inherited systems in phases that preserve business continuity.

  • Architecture and dependency audit
  • Runtime and framework upgrades
  • Modularization and strangler releases

Data And Reporting

Design transactional data, reporting, search, caching, and migration workflows around business requirements.

  • SQL Server and relational data
  • Reporting and dashboard APIs
  • Data migration and validation

Azure And Microsoft Integration

Connect applications to Microsoft identity, cloud, collaboration, and delivery services where appropriate.

  • Microsoft Entra ID
  • Azure application services
  • Microsoft 365 and business integrations

Testing And Operations

Build quality and production evidence into delivery rather than treating it as a final gate.

  • Unit, integration, and browser tests
  • CI/CD and environment controls
  • Logging, metrics, and incident readiness

Delivery model

How we turn the first call into a working system

We keep discovery practical, ship in visible increments, and make ownership clear so you can scale with confidence.

1

Assess

We review the product goal, current stack, users, integrations, risks, and evidence before recommending a solution.

2

Plan

You get a practical scope, architecture direction, milestones, acceptance criteria, team shape, and release plan.

3

Build

We deliver in visible increments with engineering, integration, QA, security checks, and stakeholder demos.

4

Launch And Improve

We support rollout, monitoring, fixes, upgrades, performance work, and the next product decisions after release.

Engagement options

Flexible enough for a project, stable enough for a long-term team

Choose the model that fits your current stage. We can start small, add specialists, or run a full product pod.

Discovery Sprint

Best when platform fit, architecture, migration risk, scope, or budget needs validation before a full build.

  • Current-state review
  • Recommended roadmap
  • Estimate and risk register

Delivery Pod

Best for a defined product build or modernization release with engineering and QA working as one team.

  • Frontend and backend engineers
  • QA and release support
  • Regular demos and reporting

Ongoing Partner

Best for products that need recurring releases, platform upgrades, reliability work, and roadmap capacity.

  • Managed backlog
  • Maintenance and monitoring
  • Specialists added when needed

Delivery experience

Product experience behind the services

The team has built and operated products, platforms, and internal systems.

Maxabout: automotive platform with large-scale search traffic

NextBite: ordering workflows for food entrepreneurs

ChatRoll and OutRoll: communication and outreach products

FAQ

Questions companies usually ask first

Clear answers help you understand how the engagement works before we get on a call.

What Types Of .NET Applications Does NextPage Build?

We build and modernize web applications, APIs, portals, dashboards, business systems, integrations, background services, and Microsoft-connected workflows using C# and supported .NET technologies.

Can You Modernize A Legacy .NET Framework Application?

Yes. We map dependencies and business rules, assess runtime and library constraints, identify safe module boundaries, improve tests, and move through phased upgrade or replacement releases.

Is This The Same As .NET MAUI Development?

No. This page covers broad .NET web, API, integration, and business application work. .NET MAUI is a narrower service for shared C# mobile and desktop applications.

Can You Deploy .NET Applications On Azure?

Yes. We can plan Azure hosting, identity, data, storage, queues, secrets, CI/CD, observability, scaling, backup, and cost controls around the application.

Do You Take Over Existing .NET Codebases?

Yes. We begin with an inherited-code review covering architecture, dependencies, tests, security, operations, and roadmap risk before making production changes.

Next step

Tell us what you want to build. We will map the first practical plan.

Share your goal, current stack, deadline, and team gaps. We typically respond within 24 hours.

Use the project form first

The form captures your goal, budget, timeline, and service context so we can route the lead, prepare properly, and keep follow-up inside the pipeline.