Nov 25, 2025
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Service categories
Service Lines
Software Development
Domain focus
Business Services
Programming language
Ruby
Frameworks
React Native
Challenge
Cooleaf began as a startup employee-engagement app and set out to become an enterprise-grade recognition and rewards platform used by global organisations. Over the years, the company faced key challenges:
- Migrating from a lightweight MVP and outdated tech stack (including AngularJS) to a stable, maintainable enterprise architecture.
- Supporting large-scale usage: over 110,000 active users across more than 100 organisations, including Fortune 500 companies.
- Adapting for enterprise-ready requirements: multi-region support (languages, currencies, time-zones), integrations, compliance and security audits.
- Managing increasing technical debt while maintaining feature delivery and high performance.
Cooleaf began as a startup employee-engagement app and set out to become an enterprise-grade recognition and rewards platform used by global organisations. Over the years, the company faced key challenges:
- Migrating from a lightweight MVP and outdated tech stack (including AngularJS) to a stable, maintainable enterprise architecture.
- Supporting large-scale usage: over 110,000 active users across more than 100 organisations, including Fortune 500 companies.
- Adapting for enterprise-ready requirements: multi-region support (languages, currencies, time-zones), integrations, compliance and security audits.
- Managing increasing technical debt while maintaining feature delivery and high performance.
Solution
Monterail collaborated with Cooleaf through their full growth lifecycle, from MVP to enterprise platform. Key solution components included:
- Redesigning and rewriting the platform's architecture: migrating front-end from AngularJS to React (React Native/Web), enabling code-sharing across web and mobile apps.
- Backend refactor: adoption of a reliable backend (Ruby on Rails) tailored for handling complex business logic, heavy usage, and enterprise-scale data flows.
- Splitting development into two specialised teams: one focusing on new feature development (Business Development), and one maintaining reliability, performance, security, and refactoring (Business Assurance).
- Building a modular, extensible system with white-label capabilities, external integrations (e.g., analytics/reporting), and a rewards engine capable of handling millions of transactions per month.
- Deep collaboration and product mindset: aligning design, engineering, and business stakeholders to support enterprise onboarding, improve UI/UX, reduce technical debt, and maintain business continuity during growth.
Monterail collaborated with Cooleaf through their full growth lifecycle, from MVP to enterprise platform. Key solution components included:
- Redesigning and rewriting the platform's architecture: migrating front-end from AngularJS to React (React Native/Web), enabling code-sharing across web and mobile apps.
- Backend refactor: adoption of a reliable backend (Ruby on Rails) tailored for handling complex business logic, heavy usage, and enterprise-scale data flows.
- Splitting development into two specialised teams: one focusing on new feature development (Business Development), and one maintaining reliability, performance, security, and refactoring (Business Assurance).
- Building a modular, extensible system with white-label capabilities, external integrations (e.g., analytics/reporting), and a rewards engine capable of handling millions of transactions per month.
- Deep collaboration and product mindset: aligning design, engineering, and business stakeholders to support enterprise onboarding, improve UI/UX, reduce technical debt, and maintain business continuity during growth.
Results
- The platform now serves 110,000+ active users across 100+ organisations, demonstrating enterprise-scale readiness.
Cooleaf successfully transformed from a startup solution into a recognised enterprise-grade product in the employee-engagement space. - Continuous architectural modernisation and team structuring enabled Cooleaf to keep delivering new capabilities while maintaining performance, security, and stability.
- The product's enhanced feature set, modularity, and scalability positioned Cooleaf as a viable partner for large organisations with strict requirements for integration, compliance, and customisation.
- The platform now serves 110,000+ active users across 100+ organisations, demonstrating enterprise-scale readiness.
Cooleaf successfully transformed from a startup solution into a recognised enterprise-grade product in the employee-engagement space. - Continuous architectural modernisation and team structuring enabled Cooleaf to keep delivering new capabilities while maintaining performance, security, and stability.
- The product's enhanced feature set, modularity, and scalability positioned Cooleaf as a viable partner for large organisations with strict requirements for integration, compliance, and customisation.
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