Modernizing Classifieds Web & Mobile Platform

CHALLENGE

With a platform growing quickly to reach a massive scale sooner than anticipated, our client was facing increasing difficulties maintaining its legacy classifieds system. When performance bottlenecks slowed down during peak traffic, fraud risks increased, and new features slowed down, that’s when the business knew it needed to modernize the classifieds platform to stay competitive.

ENGAGEMENT STAGE

CHI Software came on board the project as a long-term partner during its active growth phase, when the platform was already live and in active use, so maintaining stability was essential. Our role, therefore, focused on gradually developing a major update to the classifieds platform while carrying forward new feature development across web and mobile.

TRANSFORMATION

Instead of rebuilding from scratch, the team focused on features specific to the classifieds platform reengineering. Legacy components needed to be refactored step by step so that performance could be stabilized and for web and mobile apps to evolve together. This approach enabled a controlled classifieds system revamp without risking any interruption of live traffic.

SERVICES PROVIDED

• Web platform development
• Native mobile development for iOS and Android
• Legacy software modernization
• Feature development and UX improvements
• Stability, performance, and infrastructure support

DEVELOPMENT TEAM

• 1 Frontend Developer
• 2 Backend Developers 
• 2 Mobile Developers
• 1 QA Engineer

SCALABILITY AND MARKET LOAD

Growing traffic, popular categories, and media-heavy classified listings tend to create an uneven load on the platform during peak hours, making predictable growth harder to manage across web and mobile environments.

ARCHITECTURE FLEXIBILITY

Tightly connected components slowed down changes and increased release risk, highlighting the need for classifieds platform reengineering to simplify evolution and reduce complexity in the long term.

PERFORMANCE AND STABILITY

Search, listings, and media handling faced increasing pressure as daily activity grew, affecting responsiveness and reliability across the platform.

FRAUD PREVENTION AND USER TRUST

Rising user activity also increased attempts at misuse and challenges for security, requiring clearer reporting and moderation flows as part of a broader modernization of classifieds software.

SPEED OF DELIVERY

Legacy dependencies made feature releases cautious and time-consuming, reinforcing the need for a structured classifieds platform upgrade that could support faster and safer delivery.

STRATEGY

The platform had already become part of everyday life for millions of users, so any change had to keep that reality in mind. The work followed a careful path where stability came first and improvements were introduced step by step. At the same time, web and mobile experiences were kept aligned while the foundation gradually evolved.

DEVELOPMENT PHASES

14M+ MONTHLY USERS SUPPORTED

The platform continues to reliably serve more than 14 million monthly users across web and mobile, while long-term improvements were introduced without interruption to live marketplace activity.

3× FASTER FEATURE DELIVERY

Release cycles became three times faster after internal processes and technical foundations were streamlined, allowing updates to reach users while the service remained fully operational.

3+ YEARS OF CONTINUOUS PLATFORM EVOLUTION

Over more than three years of ongoing development, the product evolved steadily through legacy classifieds system modernization, proving that large platforms can improve without risky rebuilds.

25% LOWER RELEASE RISK DURING PLATFORM UPDATES

Deployments became safer and more predictable as part of a structured classifieds platform upgrade, significantly reducing stress during releases and minimizing user-facing incidents.

FOUNDATION FOR LONG-TERM PRODUCT GROWTH

A controlled classifieds system revamp resulted in a more flexible and scalable product, ready to support future expansion and new marketplace capabilities.

ABILITY TO EVOLVE THE PLATFORM WITHOUT DOWNTIME

The team demonstrated that it is possible to modernize platform components while keeping the service live and accessible for a large active user base.

Companies that operate high-traffic marketplace products and want to modernize classifieds platform solutions without disrupting live users can rely on CHI Software’s experience. Our teams work with large-scale web and mobile products where stability, performance, and trust matter every day. We help businesses approach classifieds platform modernization gradually, turning complex legacy marketplaces into a modern classifieds platform that users and internal teams can rely on.

What We Specialize In

• Classifieds platform modernization for large-scale web and mobile products
• Legacy classifieds system modernization without full rebuilds or downtime
• Architecture and delivery improvements that support stable growth
• Performance, reliability, and moderation improvements 
• Retail software development for high-traffic marketplaces

Businesses We Support

• Online classifieds and marketplace platforms
• Consumer web and mobile products with large active audiences
• E-commerce and listing-based digital businesses
• Products that require long-term platform evolution and stability