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Nextstack Technologies Pvt Ltd

Modern Software Engineering. Cloud. AI.

We help businesses modernize legacy applications, build scalable software platforms, and integrate AI into existing business systems.

Talk to Our Technology Team Explore Our Services
.NET Modernization Cloud & APIs Microservices AI Integration Architecture Consulting Built: Fixora Homecare 360
Technology Transformation
YOUR BUSINESS
↓
.NET Modernization
Cloud Azure
AI RAG / LLM
↓
APIs Scalable
Microservices Reliable
Data Secure
↓
Scalable Digital Applications
.NET
Azure
Microservices
AI / RAG
Cloud Engineering
Product Showcase · Hyperlocal Platform Venture
Fixora. Home Maintenance Platform

Engineered by Nextstack Technologies: An intelligent, managed residential maintenance and repair platform designed for Odisha (Bhubaneswar & Cuttack). Features verified technician dispatch, transparent rate-card pricing, pre-monsoon weather shield checks, and our proprietary Digital Home Passport.

ASP.NET Core Web API React & Tailwind PostgreSQL WhatsApp Dispatch Engine
FIX
Fixora Platform
Bhubaneswar & Cuttack Hubs
PILOT ACTIVE
  • Digital Home Passport: Full appliance lifecycle logs
  • Itemized Billing: Diagnostic, labor & parts separated
  • Specialized Trades: AC jet wash, electrical, plumbing & civil
  • Rapid Dispatch: 45-min arrival target for emergencies
The Challenges

Your technology shouldn't hold your business back.

We help organizations address the engineering problems that slow product delivery, increase technical debt and make technology harder to scale.

01

Legacy Applications

Running older .NET Framework or ASP.NET MVC applications? Modernize them without unnecessary rewrites.

02

Scaling Challenges

APIs becoming difficult to maintain? Monoliths becoming bottlenecks? Build scalable backend and cloud architectures.

03

AI Opportunity

Want to introduce AI but don't know where it fits? We integrate practical AI into applications and business workflows.

What We Do

Technology solutions built around your business.

From modernization to AI, we help businesses solve complex software engineering challenges with practical, maintainable solutions.

.NET Modernization

Modernize legacy .NET applications, APIs and enterprise platforms using a phased approach.

  • .NET Framework → modern .NET
  • ASP.NET MVC → ASP.NET Core
  • Legacy API modernization
  • Monolith modernization
  • Docker & cloud migration

Cloud & Backend Engineering

Build secure, scalable and maintainable backend platforms.

  • ASP.NET Core & REST APIs
  • Microservices
  • Azure & Docker
  • PostgreSQL & SQL Server
  • Redis, Auth & CI/CD

AI Integration

Add useful AI capabilities to existing business applications.

  • RAG & enterprise search
  • AI assistants
  • Document intelligence
  • AI agents
  • Workflow automation

Architecture Consulting

Experienced technical guidance for complex architecture decisions.

  • Architecture assessment
  • Cloud architecture
  • API architecture
  • Performance & security
  • Modernization roadmap
Featured Solutions

Solve complex technology challenges without creating tomorrow's problems.

Solution 01

Modernize your .NET application

You don't always need a complete rewrite. We create phased modernization strategies designed to reduce technical debt and business disruption.

.NET Framework → Assess → Modern .NET → Cloud
Solution 02

Add AI to your existing application

Introduce AI where it delivers business value — from knowledge assistants to document processing and intelligent workflows.

Application → AI → RAG → LLM → Workflow
Why Nextstack

Senior engineering expertise without the overhead of a large consulting organization.

01

Senior Engineering Expertise

Experienced technology leadership across enterprise application development and architecture.

02

Architecture First

We design for scalability, security, performance and maintainability.

03

Business Focused

Technology decisions are aligned with business outcomes rather than technology trends.

04

Flexible Engagement

Project delivery, engineering capacity or ongoing technology consulting.

Technology Expertise

Modern technology for enterprise applications.

Backend

C# .NET ASP.NET Core REST APIs Microservices EF Core Dapper

Cloud & DevOps

Azure Docker CI/CD Azure Functions Cloud Architecture

Data

SQL Server PostgreSQL Redis NoSQL Vector Databases

AI

LLMs RAG AI Agents AI Search Python FastAPI

Frontend

React Angular Tailwind CSS Modern Web Applications
How We Work

From problem to production.

01

Understand

Business goals, technology and challenges.

02

Assess

Application, architecture and infrastructure review.

03

Design

Solution architecture and implementation roadmap.

04

Build

Engineering and integration using modern practices.

05

Validate

Security, reliability, performance and requirements.

06

Scale

Ongoing support as your business evolves.

Who We Work Best With

Technology partners for businesses ready to modernize and scale.

We work particularly well with organizations that need modernization, engineering capacity or practical AI adoption.

  • Have legacy .NET applications
  • Need additional engineering capacity
  • Are modernizing their technology platform
  • Are migrating applications to the cloud
  • Want to introduce AI into existing applications
  • Need experienced architecture guidance
    • Discuss Your Challenge →
    Demonstration Solutions

    What we can build.

    Representative software solutions and platforms engineered by Nextstack Technologies.

    Hyperlocal Platform · Live

    Fixora. Home Maintenance

    Full-stack on-demand home maintenance platform for Odisha with transparent rate cards, WhatsApp dispatch, and Digital Home Passport.

    React .NET 10 PostgreSQL
    AI / RAG

    Enterprise AI Knowledge Assistant

    AI-powered knowledge assistant for searching and interacting with internal business knowledge.

    .NET FastAPI RAG PostgreSQL Vector Search
    Modernization

    .NET Application Modernization

    A phased approach to modernizing enterprise applications while minimizing disruption.

    .NET ASP.NET Core SQL Server Docker Azure
    About Nextstack

    Engineering experience. Modern technology. Practical solutions.

    Nextstack Technologies is a software engineering and technology consulting company focused on helping businesses solve complex software challenges.

    Our expertise spans enterprise application development, .NET modernization, cloud engineering, APIs, microservices, databases and AI-enabled applications.

    Business
    Understanding
    + Architecture
    + Engineering
    + Delivery
    Let's Discuss Your Technology Challenge

    Have a legacy application? Building a new product? Exploring AI?

    Tell us about your application, business challenge, technology stack and what you want to build or modernize. You don't need to have the complete technical solution figured out.

    Start a Conversation

    Nextstack Technologies Pvt Ltd

    Technology Consulting & Software Engineering

    Location

    HSR Layout, Bangalore
    India - 560102

    Call

    +91 9354849869

    Email

    sales@nextstacktechnologies.com