Scalable Backend for Fithit
DevOpsBy engineered a robust, high-availability backend to support Fithit's rapidly growing community of fitness enthusiasts.
About FitHit
"FitHit is a smart fitness web platform designed for new fitness enthusiasts who want an easy way to track their nutrition. Users simply place their food on a scale, take a picture using the in-app camera, and the AI analyzes the meal to estimate calories and macronutrients."
- 99.99% Uptime guarantee for high availability during peak workout hours
- 200ms target API Response Time for seamless user experiences
- Global CDN deployment for fast asset and image delivery across all regions
- Real-time application monitoring and full infrastructure observability
The Challenge
As FitHit's user base rapidly expanded, their existing monolithic backend began failing under peak load, resulting in severe latency for users in different regions. The process of saving scanned meals into the gallery-style timeline became frustratingly slow.
Furthermore, the engineering team suffered from slow deployment cycles due to manual testing processes, and a complete lack of real-time application monitoring meant that incidents were often reported by users before the team even knew they existed.
Our Solution
Microservices Architecture
Migrated from a struggling monolithic backend to a scalable microservices architecture capable of handling unpredictable, high-traffic workout loads seamlessly.
Automated CI/CD Pipelines
Implemented automated testing and deployment pipelines, enabling zero-downtime releases and allowing the team to ship updates multiple times a day.
Global CDN & Caching
Deployed a global CDN and optimized database queries with an advanced caching layer, ensuring fast media delivery for FitHit's photo-heavy food tracking.
Comprehensive Observability
Integrated Datadog monitoring across the entire stack, providing real-time alerting, logging, and fast incident response capabilities.
Technical Architecture
A scalable microservices architecture underpins FitHit's core functionality — real-time AI food analysis, timeline synchronization, and user data management — built to enterprise standards for high availability and low latency. Automated CI/CD pipelines extend the application seamlessly into production, while global CDN and caching ensures the platform is exceptionally fast and reliable across iOS, Android, and Web ecosystems.
Unified Codebase across iOS, Android & Web
To ensure FitHit reached every user flawlessly, DevOpsBy developed a complete cross-platform ecosystem utilizing Next.js for the web application and React Native for native iOS and Android apps.
By leveraging unified APIs and shared business logic from our scalable backend architecture, we dramatically accelerated the development cycle. This allowed FitHit to launch simultaneously on all platforms with perfect feature parity and zero compromises in native performance.
How DevOpsBy Works
A structured, reliable approach to scaling infrastructure and automating deployments.
Measurable Impact
With the new infrastructure in place, FitHit achieved seamless scaling during their highest-traffic workout hours. Zero-downtime deployments were enabled, allowing for rapid iteration, and the team now benefits from predictable infrastructure costs and complete observability.