Azure-Driven Release Management and Deployment Modernization
99.999%
availability for main application components.
7X lower
storage costs and 10× savings with AKS vs Azure Functions.
Industries
Industries We Serve
Cross-industry engineering experience across regulated and high-growth sectors.
All IndustriesTechnologies
Kotlin
Java
Objective-C
Swift
AWS
Expertise
Mobile app development
Highload
QA
DevOps
Payments
Client Overview
Large-Scale Retail Fashion Leader
A major North American fashion retailer that serves millions of customers, offering affordable products along with a strong in-store and digital shopping experience. The company operates hundreds of locations nationwide and is continually strengthening its omnichannel capabilities to keep up with evolving shopper expectations.
Industries:
Retail, FashionTech
Country:
USA
Challenges
Scaling Mobile Delivery While Maintaining Quality
The client needed to rapidly expand mobile capabilities, maintain code quality, and support extreme traffic spikes during critical sales events.
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Rapid growth
The need to rapidly expand its workforce to meet escalating demands in mobile app development and support.
Quality control
The critical importance of maintaining code quality and compliance with industry standards.
High traffic events
Frequent massive traffic spikes during critical sales events and high traffic the rest of the year, requiring seamless updates and constant monitoring to avoid downtime.
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Why They Chose Us
Zoolatech is a Long-Term Software Engineering Partner
The client selected Zoolatech for its ability to deliver consistent mobile excellence, provide deep platform expertise, and operate as an extension of their internal team for years.
Enterprise-grade mobile engineering
Zoolatech brings extensive experience building high-traffic, high-reliability mobile apps using native technologies, modern architectures, and secure engineering standards—ensuring long-term stability and platform consistency.
High-ownership delivery model
Our teams operate with full autonomy and strategic responsibility, mirroring onshore counterparts, driving mobile innovation, and sustaining predictable delivery at scale over multi-year engagements.
Zoolatech is a senior-heavy engineering firm with Silicon Valley roots and a Miami HQ, specializing in legacy modernization, system re-architecture, and AI deployment to drive long-term, compounding value.
2017
Year Founded
600+
Employees
96%
Client Satisfaction
Workflow
Multi-Year Mobile Delivery Approach Built for Scale
Our delivery model balances speed, quality, and reliability across a growing multi-platform mobile ecosystem.
Phase 1
Team expansion and capability setup
We established the foundation for long-term mobile growth by scaling the engineering team, aligning processes, and defining architecture and quality standards to support continuous delivery.
Phase 2
Mobile architecture and feature roadmap planning
The team aligned on mobile architecture direction, standardized design patterns, and created a roadmap to support rapid feature development while preventing technical debt.
Phase 3
High-impact feature delivery across iOS and Android
We delivered critical revenue-driving and engagement-focused features, coordinating multi-team workflows and ensuring safe rollouts during high-traffic periods.
Phase 4
DevOps, analytics and performance optimization
CI/CD automation, monitoring systems, mobile analytics, and security practices were enhanced to ensure resilience, rapid releases, and app stability during massive traffic spikes.
Phase 5
Ongoing support, refactoring and continuous improvement
The team provided long-term support through performance monitoring, issue resolution, architecture evolution, and iterative refinements across both platforms.
We scaled mobile delivery, built a resilient high-traffic architecture, and shipped revenue-driving features—doubling development velocity and powering an app used by millions.
Solution
Five-Year Mobile Transformation (iOS and Android)
All detailed work performed by Zoolatech is consolidated into one solution section.
Zoolatech approach
Zoolatech responded to these challenges with a comprehensive and proactive mobile-focused strategy:
- Ownership and autonomy: Zoolatech has established a dedicated mobile team of over 60 professionals, managing Android analytics, releases, and feature implementations, and ensuring consistency and excellence in iOS projects, mirroring the US counterpart team.
- Proactive expertise: Our mobile teams proactively contribute suggestions and insights, applying deep technical knowledge to create prototypes that enhance the mobile app’s user experience.
- Mobile best practices: We adopted standardized processes, design patterns, and conventions to maintain consistency within the extensive mobile development team.
- Innovative mobile solutions: We consistently showcase our ability to suggest and develop innovative mobile solutions without specific requirements, demonstrating our research and problem-solving capabilities.
- Mobile metrics and production support: Continuous monitoring of mobile-specific metrics and rapid incident resolution with tiered Pager Duty to ensure mobile app stability and reliability.
Implementation
The Zoolatech team has developed, tested, and implemented mobile features that have significantly enhanced the user experience of the mobile application. To drive higher user engagement, improve customer retention, and boost daily app visits, ultimately resulting in increased revenue and growth, the team implemented these critical features:
- Payment systems integrations: The integration of multiple payment systems, such as PayPal, AfterPay, and Apple help retain existing customers and aPay, allows users to select their preferred payment method, increasing the number of purchases.
- Loyalty program: The implementation of a “Rewards” module and introduction of a customer loyalty program for our client’s end-users and attract new ones.
- Dynamic components and layouts: Development of a dynamic homepage with components and layouts that can change daily without requiring app updates. This influences users to visit the app more frequently as they are constantly greeted with fresh and personalized content.
Additional features
We redesigned the process to use two AWS Lambdas instead of three and later updated it to produce Kafka events with financial details. The solution was deployed using custom CI/CD pipelines and AWS CloudFormation. When the transaction volume became too high—particularly during anniversary sales—the AWS Lambda solution could no longer process the file within the 15-minute execution window. To address this, we completely redesigned the project, transitioning from AWS Lambda to AWS Batch.
- Purchase history module: A user-centric module was created to offer order tracking, return initiation, and a comprehensive view of past purchases, enhancing the overall customer experience.
- Push notification enhancements: Various push notification features, such as price drop alerts, in-stock notifications, and personalized feeds, were developed to boost user engagement and satisfaction.
- Looks module: An AI-powered “Looks” or “Outfits” module was implemented to help users curate coordinated ensembles, personalizing the app and making it more engaging.
- Visual search: A visual search feature utilizing machine learning algorithms allows users to search for products using images, improving the user experience and engagement while offering an efficient way to find preferred items.
- iOS widgets: The development of iOS widgets enhanced user convenience and engagement, contributing to increased user interaction with the app.
Guest checkout
The guest checkout increased the average revenue rate from purchases by 12% on Android by allowing non-authorized users to purchase goods. It came right on schedule, just in time for one of the busiest traffic events. To accomplish this, the following team developed considerable enhancements for each module with which users interact:
- Product page: Guests can add items to their shopping cart.
- Shopping bag: A user-friendly shopping bag with editing and shipping options for guests.
- Guest user recommendations: Enhanced product suggestions for guest users.
- Checkout experience: Streamlined checkout steps for guest users.
- Payment process: Improved payment flow for guest users.
QA and technical support
To ensure a smooth and successful experience for millions of users, QA and Technical Support are constantly working on mobile apps:
- Android QA processes: On Android, we built QA processes from scratch, covering QA cycles, smoke testing, regression testing, and test plans.
- Secure coding standards: We follow OWASP secure coding practices, ensuring compliance with security standards.
- Technical support and refactoring: Continuous technical support and proactive code refactoring.
- Architecture transformation: Ongoing architecture transformation using Jetpack Compose for improved scalability and user experience.
- Incident response: Using the Pager Duty tool to take action to resolve issues, minimize downtime, and ensure the reliability of services.
Results
Delivering Scale, Speed, and Mobile Growth
Our multi-year collaboration drove major performance, reliability, and engagement gains across the client’s mobile ecosystem.
A resilient mobile architecture that supported rapid growth while maintaining stability and quality at scale.
Faster delivery and reliability
Throughout our half-decade partnership, we have accomplished notable milestones: Development velocity doubled, enabling the swift implementation of features and clearing a backlog of innovations. Reliability improved through regular bi-weekly releases featuring new enhancements consistently delivered without disrupting production.
Scalable architecture and quality assurance
Our architecture was designed with scalability in mind, seamlessly accommodating the integration of new applications and features, thereby supporting the client’s continued expansion. Error rates lowered with extensive manual and automation coverage, ensuring a smooth user experience while mitigating business losses.
Increased engagement, usage and revenue impact
The improvements in mobile development translated into enhanced mobile app performance, speed, and user engagement, resulting in increased mobile app usage, user satisfaction, and higher conversion rates on mobile devices.
Business Value
Long-Term Engagement, Growth, and Scalability
The ongoing partnership doubled development speed, strengthened reliability, improved scalability, and delivered the mobile features that significantly increased engagement, purchases, and revenue.
Business impact and revenue growth
The ongoing partnership doubled development speed, reliability, scalability, and reduced errors. The app gained modules that improved business metrics: guest checkout, boosting sales, and improving user experience.
Product enhancements and user engagement
The team improved mobile features, integrating payment systems, “Purchase History,” “Rewards,” push notifications, a dynamic homepage, and visual search. The app reached 10 million downloads on iOS and Android with 179k monthly downloads, positively impacting revenue growth, user engagement, and purchase revenue. The Android team doubled app revenue in three years, increasing engagement time by over 40%.
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