Crux transforms outdated applications into scalable, cloud-native platforms — helping Saudi enterprises eliminate technical debt, accelerate innovation, and compete in a digital-first economy.
organisations completing structured modernisation programmes vs. ad-hoc refactoring approaches
4×
Deployment Frequency
modern cloud-native platforms ship features 4× faster than legacy monolithic systems
40%
Lower Maintenance Costs
post-modernisation operational savings on average for Saudi enterprise workloads
What We Do
Legacy systems become bottlenecks. We transform them into assets.
In a digital economy, outdated applications constrain growth, increase risk, and drain engineering capacity. Crux Enterprise Application Modernization helps organisations update, re-architect, and modernise mission-critical platforms — accelerating performance, maintainability, and innovation.
We specialise in transitioning legacy platforms to modern architectures — cloud-native, microservices, and API ecosystems — enhancing agility, resilience, and competitive advantage in Saudi Arabia's finance, healthcare, and government sectors.
Core Capabilities
End-to-end modernisation. Every legacy scenario.
Legacy Assessment & Modernisation Roadmap
Before a single line changes, we map your entire application estate — identifying risk, opportunity, and the optimal modernisation path for each system component.
Application portfolio audit — Catalogue every system, dependency, and integration point across the enterprise.
Technical debt quantification — Measure the cost of inaction and prioritise intervention by business impact.
Strategy selection — Choose the right approach per system: rehost, replatform, refactor, rebuild, or retire.
Business case & ROI — Justify investment with financial models that speak to board and C-suite decision-makers.
01
Portfolio Assessment
Core Banking Platform
Monolith · High risk · Refactor
Customer Portal
React frontend · Replatform
Reporting Engine
Legacy COBOL · Retire + Rebuild
API Gateway
None · Enable · Greenfield
Refactoring & Microservices Decomposition
Decompose monolithic applications into scalable microservices — eliminating fragility of tightly coupled systems and enabling independent deployment of business capabilities.
Strangler-fig pattern — Incrementally replace monolith components — zero big-bang risk, production always live.
Domain-driven decomposition — Identify bounded contexts and define service boundaries aligned with business domains.
Database per service — Migrate shared databases to isolated data stores that scale independently.
Transform closed legacy systems into open, composable API ecosystems — enabling rapid integration, partner connectivity, and the foundation for AI and analytics adoption.
API gateway design — Unified API layer over legacy backends — REST, GraphQL, and gRPC interfaces built for developer experience.
Legacy system wrapping — Expose existing functionality through modern API contracts without requiring full system replacement.
Third-party integration — SAP, Salesforce, Oracle, and sector-specific platform connectors for Saudi enterprise ecosystems.
Developer portal — Self-service documentation, sandbox testing, and onboarding for internal and partner teams.
03
API Gateway Status
GET /api/v2/accounts
238ms → 14ms post-modernisation
POST /api/v2/payments
Legacy SOAP → REST
GET /api/v2/reports
Async · event-driven
Total APIs Exposed
67 APIs · 12 deprecated
UX Revamp & Digital Interface Redesign
Modernised backends deserve modern frontends. We rebuild dated interfaces into responsive, accessible, data-driven experiences designed for Arabic and English enterprise users.
User research & journey mapping — Understand how enterprise users actually interact with legacy systems before redesigning anything.
Design system creation — Reusable component libraries that ensure consistency across every interface touch-point.
Performance engineering — Achieve sub-2s load times and 90+ Lighthouse scores through modern front-end architecture.
Accessibility & RTL support — Full Arabic/English bilingual support with WCAG 2.1 AA compliance for Saudi enterprise users.
04
Interface Transformation
Lighthouse Score
47 → 98
Load Time
8.4s → 1.2s
Core Web Vitals
POOR → GOOD
Arabic RTL Support
None → Full
How We Deliver
Structured. Risk-controlled. Delivered.
No big-bang rewrites. No production disruptions. A phased approach that keeps your business running while systematically eliminating technical debt.
01
Assess & Prioritise
Full portfolio audit, technical debt scoring, and business impact mapping delivered as a board-ready modernisation roadmap.
"Crux transformed a 12-year-old monolith into a modern microservices platform in seven months — without a single hour of production downtime. The system now deploys independently across 8 services and maintenance overhead dropped by 43%. Our engineering team finally has time to build instead of maintain."
CT
Chief Technology Officer
Saudi Financial Services Group · Riyadh
-43%
Maintenance cost reduction post-modernisation
7 mo
Monolith to microservices — zero downtime
8
Independent services now deployed separately
98
Lighthouse performance score achieved
Technology Stack — Best-in-class tools · No vendor lock-in
Transform legacy liability into competitive advantage.
Phased. Risk-controlled. Zero downtime. Engineered for the regulatory and operational realities of Saudi Arabia's most demanding enterprise environments.
