Industry
Retail & E-Commerce
Technologies
React.js, Node.js, PostgreSQL, AWS, Selenium
About Our Client
The client is a rapidly growing online fashion retailer based in Europe, catering to over 2 million active users monthly. With seasonal spikes in traffic and a broad product catalog, the client aimed to enhance customer experience, reduce drop-offs during peak campaigns, and streamline QA across multiple web modules, including product pages, cart, checkout, and promotions.
Challenge
As the platform scaled, several performance and usability bottlenecks emerged:
- High Cart Abandonment Rates: Users frequently drop off at checkout due to load delays and inconsistent pricing displays.
- Unpredictable Load Performance: The site experienced outages during flash sales, with page response times exceeding 5 seconds.
- Manual QA Limitations: Manual testing couldn’t keep up with weekly release cycles, leading to missed bugs in production.
- UI Inconsistencies: Across devices and browsers, layout breakages and slow UI response were hurting brand perception.
The client needed a highly scalable QA process with automation, performance benchmarking, and continuous usability validation.
Solution
Celestial Infosoft deployed a dedicated QA team to design and execute a comprehensive testing framework optimized for high-traffic, visually dynamic e-commerce environments.
Key Features Delivered:
- End-to-End Functional Testing: Covered 150+ test scenarios across login, cart, payments, returns, and loyalty features.
- Cross-Browser/Device Compatibility: Validated UI and performance across Chrome, Safari, Firefox, and mobile browsers.
- Automated Regression Suite: Selenium-based scripts with CI/CD integration reduced manual regression time by 75%.
- Load & Stress Testing: Simulated up to 100K concurrent users during flash sales using JMeter and AWS Cloud infrastructure.
- UX Feedback Loops: Conducted heuristic evaluations and click-path tracking to identify and optimize pain points.
- Real-Time Monitoring Setup: Integrated performance monitoring tools for live issue tracking post-deployment.
Project Highlights
- Automation-Driven QA: 400+ automated test cases covering functional flows, cart logic, and backend service validations.
- Performance Optimization: Load testing revealed bottlenecks in the checkout API, later resolved with optimized DB queries.
- User Journey Validation: Behavioral testing ensured a smooth experience from the homepage to the final purchase across all platforms.
- CI/CD Integration: QA was tightly coupled with GitLab pipelines, enabling daily test cycles and rapid feedback loops.
Results
- 30% Reduction in Cart Abandonment due to improved load times and streamlined UX.
- 2x Faster Page Speeds during campaigns after backend performance tuning.
- 75% Cut in Regression Time with automated suites reducing manual QA efforts.
- Improved User Retention with a smoother cross-device shopping experience.
Technologies and Tools
- Frontend: React.js, Bootstrap, Styled Components
- Backend: Node.js (Express), GraphQL
- Database: PostgreSQL, Redis
- Testing Tools: Selenium, JMeter, Lighthouse, BrowserStack
- Cloud & DevOps: AWS EC2, S3, CloudFront, GitLab CI/CD
- Monitoring: New Relic, Sentry, AWS CloudWatch
Client Feedback
“Celestial Infosoft transformed our QA game. From automation to stress testing, every piece was precise and efficient. Our launch confidence is now 10x higher and so is our customer satisfaction.”
– Client Says
