Web App Development

Custom Web Applications
Built for Scale, Speed and Business Growth

From zero-to-one SaaS products to complex enterprise platforms, GateScape engineers web applications that are architecturally sound, performant under load and built to evolve with your business.

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200ms
Average page load target
99.9%
Uptime SLA
6 weeks
Average MVP timeline
Overview

What We Do & How We Do It

A web application is not a website — it is infrastructure. Architecture decisions made in week one determine whether your platform scales to 10,000 users or buckles at 500.

Our practice covers the full spectrum: B2B SaaS, enterprise portals, internal tooling, marketplaces, data dashboards and API-first products — adapting to your stage and objectives.

Every application we ship is cloud-native, containerised, covered by automated tests and supported by CI/CD pipelines. Performance, security and maintainability are design requirements.

Cloud-native architecture from day one
React, Vue, Node.js, Python, .NET
PostgreSQL, MongoDB, Redis data layers
AWS, Azure, GCP deployment
Automated testing to 80%+ coverage
WCAG 2.1 AA accessibility
Capabilities

What Web App Development Covers

Every engagement draws from our full technical capability applied to your specific requirements.

SaaS Platform Engineering
Multi-tenant SaaS with subscription management, role-based access control and self-service onboarding flows.
Enterprise Portals
Secure employee portals, client dashboards and internal tooling with SSO and enterprise-grade security.
Data Dashboards
Real-time analytics interfaces, data visualisation and BI dashboards with complex querying and live updates.
API & Integrations
RESTful and GraphQL APIs, third-party integrations (Stripe, Salesforce, HubSpot) and webhook infrastructure.
Marketplace Platforms
Two-sided marketplace architecture with buyer/seller matching, secure payment flows and algorithmic feeds.
Performance Optimisation
Application profiling, query optimisation, caching strategy and load testing for high-traffic environments.
Our Process

How Every Engagement Runs

A consistent four-phase process that eliminates guesswork and delivers measurable outcomes.

01
Discovery & Architecture
Business requirements mapped to technical architecture. Data models and API contracts defined before any code.
02
MVP Development
Core functionality built and deployed to staging in 4–6 weeks. Real user feedback informs the roadmap.
03
Iterative Development
Fortnightly sprints add features and integrations. Full test coverage maintained throughout.
04
Production Launch
Zero-downtime deployment, monitoring, performance testing and complete documentation handover.
Case Studies

Results We Have Delivered

Real projects, real outcomes, real numbers. No composites or hypotheticals.

Case Study 01
B2B SaaS
Subscription Platform
Result

Procurement SaaS grew from zero to 12,000 active users in six months without architecture changes

A B2B procurement startup needed a multi-tenant SaaS with supplier catalogue management, purchase order workflows and Stripe billing. MVP in 11 weeks, V1 in 22 weeks. Scaled to 12,000 users without any architecture changes.

12,000
Active users at 6 months
11 weeks
MVP delivery
0
Architecture rewrites
Case Study 02
Real Estate Technology
Marketplace Platform
Result

Property investment marketplace facilitated $2.4M in transactions in its first year of operation

A real estate tech company needed a marketplace connecting investors with off-market deals — complex search algorithms, document management and escrow payment flows. Built in 18 weeks. Facilitated $2.4M in year one.

$2.4M
Transactions in year one
18 weeks
Build timeline
4.9★
Average user rating
Case Study 03
Healthcare
Patient Portal
Result

Healthcare network patient portal achieved 94% adoption across 8,000 patients within 3 months

A multi-site healthcare network needed a HIPAA-compliant patient portal with EHR integration and secure messaging. Delivered in 14 weeks. Patient adoption reached 94% within 3 months — exceeding the 60% target.

94%
Patient adoption at 3 months
14 weeks
To production
HIPAA
Compliant, first audit pass
Packages & Pricing

Engagement Options

Transparent pricing for every stage of growth. All packages include a dedicated project manager and full documentation.

Tier 01
Startup MVP
$12,000+
For founders validating a product idea. Core functionality shipped in 6 weeks for real user feedback.
  • Core MVP functionality
  • Responsive frontend (React/Vue)
  • REST API backend
  • Database design & setup
  • User authentication
  • Basic admin panel
  • Cloud deployment
  • 30-day post-launch support
Get Started →
Most Popular
Tier 02
Business Platform
$35,000+
For businesses building a full-featured SaaS or enterprise platform with complex functionality.
  • Full-featured application
  • Multi-tenant architecture
  • Third-party integrations
  • Role-based access control
  • Advanced admin & reporting
  • Automated testing suite
  • CI/CD pipeline
  • Performance & security audit
  • 60-day post-launch support
Get Started →
Tier 03
Enterprise System
Custompricing
For complex, high-scale enterprise systems with advanced security and compliance requirements.
  • Enterprise-grade architecture
  • SSO & directory integration
  • Compliance framework (SOC 2, HIPAA)
  • Microservices architecture
  • Advanced DevOps & observability
  • Load testing to 100K+ users
  • Dedicated SRE support
Get Started →

Indicative pricing. Final scope confirmed after discovery call.

FAQ

Frequently Asked Questions

Answers to the most common questions about Web Application Development.

How long does it take to build a web application?
An MVP takes 6–10 weeks. A full-featured SaaS platform takes 16–24 weeks. Complex enterprise systems take 6–12 months. We provide a detailed plan after a scoping call.
What technology stack do you recommend?
Our default is React, Node.js or Python FastAPI, PostgreSQL, Redis and AWS. We adapt to your existing investments.
Will I own the source code?
Yes. All code is assigned to you under a full IP assignment agreement included in our contract.
How do you handle application security?
We implement OWASP Top 10 mitigations, dependency scanning, secrets management and — for regulated industries — compliance controls (HIPAA, PCI-DSS, SOC 2).
Can you take over an existing codebase?
Yes. We start with a technical audit documenting risks and opportunities, then develop a refactor plan that minimises disruption.
Get Started

Have a Web Application You Need to
Build or Rescue?

Share your product brief and we'll respond with an architectural assessment, a realistic timeline and a proposal within 48 hours.

Book a Discovery Call →