Expanding Bangladesh’s Largest Bookstore & E-commerce with a Mobile-First Experience

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About Rokomari

Client

Rokomari.com

Industry

E-commerce (Books & Retail)

Timeline

2016–2017

Services

Mobile App Development, UX Optimization, Android Engineering

Rokomari is Bangladesh's leading online bookstore and e-commerce platform, serving millions of readers and shoppers across the country. As mobile usage started growing rapidly in 2016, the company aimed to expand beyond the web and reach users through mobile applications, ensuring a smoother and more accessible buying experience.

Performance Highlights

3–5x

User growth post-launch

2X

Increase in customer engagement

End-to-end

Improved user journey from discovery to purchase

Unified

Web and mobile experienceacross platforms

Native

Android app built from the ground up

MVVM

Architecture adopted for scalability and flexibility

Beta

A/B testing program launched pre-release

The Challenges

Challenge
Limited reach with web-only platform
Challenge
No dedicated mobile app experience
Challenge
Need for a centralized, frictionless login system
Challenge
Complex and evolving API infrastructure
Challenge
Performance limitations of low-end Android devices
Challenge
Maintaining consistent UX across web and mobile
Challenge
Difficulty converting casual users into loyal customers

Solutions & Impact

Challenge
Developed a complete Android application for mobile users to capture mobile-first users during the smartphone boom
Challenge
Designed unified experience across web and mobile
Challenge
Adopted MVVM architecture pattern to mirror web UX while respecting Android's design system
Challenge
Optimized app performance and resource usage to support low-end Android devices
Challenge
Designed a centralized, frictionless authentication system for mobile users
Challenge
Built a fully modular codebase to absorb frequent API and infrastructure changes from Rokomari's core team
Challenge
Collaborated closely with Rokomari's engineering team on component design, balancing brand consistency with platform standards

TechCare’s Journey With Rokomari

Journey

2016 — Ideation, Planning & Architecture

Rokomari approached TechCare with a clear goal: expand beyond the web and reach the growing base of smartphone users across Bangladesh. The smartphone boom was creating a new class of mobile-first shoppers, and Rokomari needed a reliable tech partner to bring their buying experience to Android.

TechCare focused on building a complete mobile buying experience before adding advanced features. Key architectural decisions were made early:

Challenge
MVVM pattern selected for modularity and maintainability
Challenge
Agile, milestone-based development process established
Challenge
User journey mapped as the foundation for data flow design
Challenge
Performance benchmarking set as a core KPI given Android device fragmentation
Workflow

2016–2017 — Development & MVP

With feature priorities set around the most impactful user actions first, TechCare built and iterated:

Challenge
Complete end-to-end purchase flow on mobile
Challenge
Centralized login and authentication system
Challenge
Integration with Rokomari's evolving API platform
Challenge
Crashlytics (Fabric) integrated for real-time app health monitoring
Workflow

2017 — Beta Testing & Launch 

Before full release, TechCare ran A/B testing across a selected group of beta users. The existing feature roadmap made it straightforward to track completed, pending, and rework items. Key KPIs monitored through launch included:

Challenge
API response logging
Challenge
Latency benchmarking
Challenge
Android build performance and stability
Challenge
Security benchmarking and code obfuscation
Workflow

2017 — Post-Launch Optimization 

This approach proved valuable after launch. As Rokomari’s product team requested feature updates and changes, TechCare was able to deliver them quickly without affecting the overall system. This continued to add value beyond the initial project.

System Architecture

System Architecture

System Architecture

Results and Benefits

Operational Efficiency

Reduced Onboarding Time: 85% reduction—from 2 weeks to 3 days for new team members.

Decreased Support Burden: 70% fewer repetitive inquiries, freeing up senior staff for high-value work.

Faster Problem Resolution: 75% improvement—average resolution time dropped from 4 hours to 45 minutes.

Knowledge Continuity

Always-Current Documentation: 90%+ accuracy maintained automatically versus 40% with manual processes.

Centralized Information: Single source of truth across 25+ repositories serving 50+ team members.

Preserved Institutional Knowledge: 100% capture of architectural decisions and design patterns.

User Satisfaction

Personalized Interactions: 4.6/5.0 user satisfaction rating across all stakeholder groups.

24/7 Availability: 200+ queries per week handled with 92% first-response accuracy.

Comprehensive Coverage: 88% of queries resolved without human escalation.

Developer Productivity

API Discovery: 90% time savings—learning curve reduced from 2-3 days to 2-3 hours.

Pattern Recognition: 35% acceleration in feature development speed.

Reduced Context Switching: 6 hours per week saved per developer on documentation searches.

Key Learnings

1

Prompt Engineering is Critical

The quality of automated documentation depends heavily on well-crafted prompts

2

Automation Enables Currency

Manual documentation updates are unsustainable; automation is essential

3

Context Quality Over Quantity

Well-structured, relevant context outperforms exhaustive but disorganized information

4

Integration is Key

Seamless workflow integration ensures developer adoption and consistent documentation

Future Enhancements

Proactive Insights: Alert stakeholders to potential issues based on codebase analysis

Advanced Analytics: Track common queries to identify documentation gaps and training needs

Multi-Modal Interactions: Support for diagram generation and code visualization

Integration Expansion: Connect with project management tools, issue trackers, and CI/CD pipelines

Conclusion

By combining Claude Projects with intelligent automation through Cursor IDE and GitHub Actions, the solution demonstrates how modern AI capabilities, when properly architected and integrated, can dramatically improve organizational knowledge management and operational efficiency.

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