Custom Web Applications
Built to Scale

Enterprise-grade web app development in Mumbai — secure, high-performance, and built with React.js/Node.js. We deliver custom web apps, integrate third-party APIs, migrate systems to AWS, and provide post-launch support with SLAs and NDAs.

React.jsNode.jsAWS

Partner with Prateeksha—a web application development company in Mumbai offering outsourced development, fixed-price contracts, and on-demand engineering teams.

Our Approach

Mumbai’s Go-To Team for Custom Web Application Development

We design and build custom web apps that solve business problems — from single-tenant prototypes to enterprise web applications with strict SLAs. Our work prioritizes security, scalability, and measurable ROI.

Whether you need web app development Mumbai, outsourced development from Bandra Kurla Complex, or to hire web developers near Andheri and Navi Mumbai, we provide clear contracts, fixed-price options, and transparent milestones.

We focus on long-term stability and fast iteration: modern architectures, secure integrations, and post-launch support so your product keeps improving.

How We Deliver Production-Ready Web Applications

Discovery & Strategy

Define scope, user journeys, integrations, compliance needs, and a delivery plan. We align on KPIs, timeline, and whether a fixed-price contract or scoped retainer suits you.

UX/UI & Design System

Product-focused UX and reusable design systems so your app is consistent and accessible across devices, reducing future development time.

Modern Tech Stack

React.js frontends, Node.js/Django/.NET Core backends, and AWS cloud architecture. We choose the right stack for performance, security, and maintainability.

Performance & Security

Improve app performance with profiling and caching, enforce security best practices, and deliver secure web applications that meet enterprise requirements.

Integrations & Migrations

Integrate third-party APIs, payment providers, and legacy systems — or migrate to cloud with minimal downtime and data integrity preserved.

Launch & Support

Staging, QA, SLA-backed support, post-launch monitoring, and ongoing improvements. NDAs and clear handover documentation included.

Services

Custom Web Application Development Services

We deliver end-to-end web app services: custom web application development, enterprise web applications, cloud migrations, API integrations, performance tuning, security hardening, and long-term support across Mumbai and nearby hubs.

From MVPs to enterprise platforms, we craft custom web apps with modular code, API-first design, and test-driven development so you can scale confidently.

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Web App Packages & Solutions

Choose a package that fits your stage: MVP, growth, or enterprise. Each solution includes secure architecture, performance tuning, and integration setup.

Add-ons: SLA-backed support, NDAs, code handovers, and case studies tailored to fintech, healthcare, e-commerce, education, and logistics.

Startup Web App (MVP)

Custom MVP with React.js frontend, Node.js backend, API integrations, and basic AWS setup.Great for startups looking to validate quickly and iterate.

Get a quote

B2B / Enterprise App

Multi-tenant support, role-based access, audit logs, SLAs, and performance targets.Designed for sales workflows, CRMs, and partner portals.

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eCommerce & Marketplace

Headless commerce, payment integrations, order workflows, and search.Optimized for conversion and scale.

Launch my store

Legacy Migration & Scale

Replatform, break apart monoliths, and migrate data with zero-downtime strategies.Protect SEO and user experience while you modernize.

Start a migration

Performance & Security Boost

Profiling, caching, pen testing, WAF, and database optimization.Immediate improvements to reliability and user experience.

Boost my app

Outsourced Team & Fixed-Price

Dedicated dev teams, fixed-price scopes, or short-term sprints. Ideal for teams in Bandra Kurla Complex, Andheri, and Navi Mumbai seeking predictable delivery.

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What We Ship With Your Web App

A production-ready design system and component library that speeds up development and keeps UI consistent across modules and platforms.

See our systems

READY WHEN YOU ARE

Start Your Custom Web App — Fast, Clear, and Supported

Request a proposal or get a quote and we’ll outline a realistic timeline, scope, and cost. We offer fixed-price contracts, SLA options, and NDA protections for sensitive projects.

Expect timely responses, transparent milestones, and engineers experienced in fintech, healthcare, e-commerce, education, and logistics. Serving Mumbai, Navi Mumbai, Thane, and surrounding areas.

Request proposal

Web App Project Checklist

Custom web application development in Mumbai.

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PLATFORM PARTNERS

Trusted by Growing Companies and Leading Brands

Teams choose Prateeksha to hire web developers, outsource development in Mumbai, and get enterprise web applications that handle traffic and complex integrations.

We provide NDAs, SLAs, clear handovers, and post-launch support so stakeholders in Bandra Kurla Complex, Andheri, Navi Mumbai, and Thane trust our delivery.

FAQs

Web Application Development — Frequently Asked Questions

Direct answers to common questions about cost, timeline, tech, and support.

Need industry-specific examples? Tell us whether you’re in fintech, healthcare, e-commerce, education, or logistics and we’ll share case studies and client testimonials.

Costs vary by scope: a simple MVP can start at an affordable fixed price, while enterprise web applications with integrations and SLAs will be higher. Share your requirements and we’ll provide a clear quote or fixed-price proposal within 24 hours.

Typical timelines range from 4–12+ weeks depending on complexity, integrations, and approvals. We provide milestone plans and weekly check-ins so you always know progress.

We commonly use React.js for frontends, Node.js, Django, or .NET Core for backends, and deploy on AWS. We pick the stack that best fits performance, compliance, and your team’s needs.

Yes. We can sign NDAs and include confidentiality clauses in proposals before work begins.

We offer maintenance retainers, SLA-backed support, security patches, monitoring, and priority fixes. Post-launch plans are customizable for uptime and response requirements.

Absolutely. We build secure, reliable connectors for payments, CRMs, logistics providers, analytics, and other third-party APIs with full error handling and observability.

Yes. For well-defined scopes we provide fixed-price contracts with clear milestones, acceptance criteria, and payment schedules.

Yes—we migrate to AWS with careful planning, data migration strategies, and minimal downtime. We also offer containerization and CI/CD as part of the move.

We can use WordPress as a headless CMS for content-driven apps or recommend custom builds when templates would limit performance or security. We don’t recommend “cheap template” approaches for mission-critical apps.

We run selective internship and mentoring programs, but production teams are staffed with experienced engineers. Ask about junior-led work under senior oversight if you have budget constraints.

Custom Web Applications
Built to Scale