Our Work
Discover how we help businesses transform their ideas into powerful digital solutions.
Challenge
Heavy reliance on third-party dependencies caused performance bottlenecks and limited customization logic.
Solution
Architected a custom reactive engine using RxJS and Lit Element, replacing external libs with native JavaScript math logic.
Impact
Achieved 100% component customizability and significantly improved scalability.
Challenge
Ensuring absolute reliability for a high-stakes financial platform where UI errors could cost millions.
Solution
Built robust frontend pipelines and implemented End-to-End (E2E) testing covering 90% of critical use cases.
Impact
Accelerated feature delivery while ensuring zero critical regressions in production.
Challenge
An outdated PHP application was suffering from slow load times and poor SEO ranking.
Solution
Executed a full migration to an Angular PWA with Server-Side Rendering (SSR) and Global State Management.
Impact
Boosted load performance by 30% and modernized the entire user experience.
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"Spark Lean's team integrated perfectly with our workflow, delivering senior-level code without the overhead."
— CTO, NYC Agency