Case Study

ListingHub — A Unifying Platform That Helps Businesses Get Found Online

IndustryMarketing & Public RelationsRegionUSAEngagementLong-term dedicated team

A Unifying Platform That Helps Businesses Get Found Online

Industry: Marketing & Public Relations · Region: USA · Engagement type: Long-term dedicated team

Foreword

The Client approached us with a vision to close a real gap in the U.S. small and medium business market: regional companies without websites or active social media presence are practically invisible online. Rather than building yet another listings directory, our partnership centered on shaping a unifying B2B platform — a single place where business owners can manage their information, reviews, and reputation across Google, Yext, Foursquare, and other channels.

Through a long-term, multi-disciplinary engagement spanning UI/UX design, frontend, backend, and DevOps, we helped take the product from initial concept to a cloud-native platform supporting tens of thousands of listings, millions of search queries, and high-traffic peak loads — without sacrificing stability or SEO performance.

1. Project Summary

Field Value
Project Codename ListingHub
Industry Marketing & Public Relations
Purpose / Business Objective A unifying B2B platform that helps regional U.S. businesses manage their online presence — listings, reviews, and reputation — across Google, Yext, Foursquare, and similar channels.
Status In production, actively scaled and supported.
Engagement Type Long-term dedicated team.

2. Client Description

Field Value
Client A US-based marketing and public-relations technology company (under NDA).
Company Size 51–200 employees.
Geo Coverage United States.
Business Vertical Marketing, Public Relations, SMB SaaS.

3. Story

The Client is a US-based marketing and public-relations technology company focused on helping small and medium businesses get found online. They built their growth thesis around a clear pain point: SMBs without websites or strong social presence have fragmented listing data, scattered reviews across platforms, and no realistic way to manage reputation without dedicated technical resources.

The Client approached us looking for a long-term technology partner that could take their idea — a centralized B2B platform for regional U.S. businesses — and turn it into a production-grade product. Our role started with discovery and UX research and grew into full-stack ownership: UI/UX design, frontend, backend, DevOps, third-party integrations, and infrastructure.

Today, the platform supports tens of thousands of listings, handles 70,000+ daily page loads and up to 500 API requests per second, and consistently ranks Client business profiles in Google's top regional search results — in many cases for businesses that do not even own a standalone website.

4. Provided Services

  • Front-end development — business dashboard and public-facing pages, with SEO-optimized templates.
  • Back-end development — modular services for search, sync, user management, and integrations.
  • UI/UX design — information architecture, wireframes, responsive design system.
  • DevOps services — containerization, CI/CD, cloud operations, monitoring.

Technologies & Tools

Layer Stack
Frontend React, Next.js, TypeScript, SCSS, Bootstrap
Backend Node.js, Java (critical microservice), PostgreSQL, Redis
DevOps Docker, Kubernetes, Google Cloud Platform, CircleCI, Cloudflare
Third-party tools Google My Business, Yext, Foursquare, Vendasta, Salesforce, Braintree, Twilio, SendGrid, Runscope, Prerender.IO

Team Composition

Role FTE
Backend developers 1
Frontend engineers 1
Full-stack engineer 1
Tech lead 1
UI/UX designers 1
DevOps engineer 1

5. Requirements & Challenges

When the Client reached out, the problem was clear: small businesses without websites are practically invisible online. Listing data is fragmented, reviews are scattered across platforms, and managing reputation requires more time and technical effort than most SMB owners can afford. To address this, the Client needed a partner who could transform an idea into a working product and ensure it could scale. Key requirements and challenges included:

  • SEO-first architecture — Designing the platform specifically to help regional businesses appear in top search results by applying solid SEO practices — structured data, fast page rendering, internal linking, and search-friendly information architecture.
  • Third-party integration ecosystem — Connecting the platform to services like Google Business Profile, Yext, Foursquare, and Vendasta to support unified listing management across channels.
  • Real-time update engine — Syncing updates instantly across all integrated platforms to keep business information accurate and consistent — even under sync floods from third-party platforms.
  • Intuitive user experience — Building a simple, responsive interface that gives owners full control over their businesses' information and customer feedback without forcing them to learn technical concepts.

6. How We Work

Collaboration approach & process

From the start, our collaboration with the Client was built on transparency and mutual trust. The Client came to us with a clear vision and a set of technologies tailored to their internal expertise and long-term roadmap. While they initiated technology stack decisions, our engineering leads thoroughly reviewed those choices to make sure they aligned with performance, scalability, and maintainability goals.

Throughout the process, our team took full responsibility for backend and frontend implementation, while the Client remained closely involved in reviewing prototypes, validating flows, and prioritizing features. Communication followed Agile principles, with regular sprint planning, reviews, and roadmap adjustments as the platform grew from an idea into a powerful digital product. We held twice-weekly sync meetings with the Client's CTO for fast feedback loops and tight alignment.

Partner testimonial

"Our partner team helped us get set up and handle the scale. Being a huge directory, we receive a lot of attention from bots, which sometimes bring our site down. Our project manager was always quick to respond, even with the time difference. He has done a great job not only of identifying problems but also of recommending solutions and fixing things fast enough to not impact our clients. I was always given the opportunity to make a final call before implementing solutions. Their team has been exceptional at communicating in time and explaining the reason behind an issue, as well as proposing solutions for it. This has made my job a lot easier."

Director, the Client (name withheld under NDA)

7. Step-by-Step Project Flow

1. Discovery and system planning

Our team assessed the Client's business requirements and market positioning to design a scalable, integration-ready architecture. The UX team worked closely with their leadership to gather requirements, analyze similar platforms, and identify UX best practices for designing a user-friendly interface from the ground up. The team presented a proposal for a revised information architecture, created low-fidelity wireframes, and tested multiple navigation options to improve usability for non-technical users. Once approved, these concepts formed the foundation for a responsive dashboard and a consistent design system.

2. Backend architecture design and data strategy

We followed a modular architecture approach by splitting core functionalities such as search, sync, and user management into independent services to improve scalability and simplify future development. To support increased data demands, the team tuned the PostgreSQL data layer for large volumes and complex queries. We also redesigned the full-text search logic, offloading search vectors to a separate table — reducing query response times from 8+ seconds to under 2. One critical microservice was converted from Node.js to Java, and we rebuilt the listing page using React and Next.js to improve load speed and rendering performance.

3. Frontend and public website implementation

The front-end team built the user interface with two distinct audiences in mind: businesses and end users. We built the business dashboard with React to let owners manage listings, reviews, and performance data in real time. This dashboard also includes an analytics module that provides clear reports on how users discover and interact with listings — including metrics like search appearance, engagement trends, and platform performance. Public-facing pages were initially developed with AngularJS and strategically enhanced for search visibility with structured data markup, a Prerender.IO integration, automated internal linking, and materialized views for rapid page generation. These improvements led to business profiles ranking higher in regional search results.

4. Integration and listings sync

We built a comprehensive integration layer connecting Google Business Profile, Yext, Foursquare, and Vendasta for seamless business information synchronization. We integrated Salesforce for CRM workflows, lead creation, and subscription management. Communication tools included Twilio and SendGrid for notifications and engagement. Braintree handled transaction processing. These changes moved the system from manual data handling to fully automated synchronization modules managing updates without conflict.

5. Payment and user management

As the platform matured to include premium features, our team added role-based permissions allowing business owners to delegate tasks while maintaining oversight. Payment processing integrated Braintree to handle transactions for premium listing placements. We also developed workflows for business claim verifications and automatic subscription setup to streamline user experience.

6. Cloud infrastructure improvements

We evolved the infrastructure into a distributed microservices architecture on Google Cloud. As part of this shift, we implemented Docker and Kubernetes, introduced resource auto-scaling, and isolated development, staging, and production environments. The infrastructure now handles over 70,000 daily page loads, 500 API requests per second, and up to 500,000 read operations per second during peak load, supported by PostgreSQL indexing optimizations.

7. System monitoring and stability

Throughout development, our team prioritized platform stability with a proactive, semi-automated approach minimizing manual work and enabling faster incident response. Real-time API health tracking with Runscope and SMS alerts allows quick response to service disruptions. Cloudflare protects against DDoS attacks, while Kubernetes auto-scales resources for traffic surges. Without a dedicated QA team, production remains stable through comprehensive runtime monitoring, automated checks, and developer oversight.

8. Delivered Functionality

  • Business discovery and SEO optimization — Thanks to built-in SEO enhancements, many business profiles consistently appear in Google's top regional search results, even for companies without websites. The platform supports full-text search across 8M+ entries, with filters by category, region, and keywords. Schema.org Microdata helps search engines better understand and index content, while automated internal linking and materialized views further improve visibility.
  • Unified reputation management and real-time presence — Business owners can manage their presence across platforms like Google My Business, Yext, Foursquare, and Vendasta from a single dashboard. Reviews across multiple platforms are aggregated into one interface, where business owners can track sentiment and respond directly. The system syncs changes in real time, minimizing inconsistencies across third-party directories.
  • Customizable business profiles with content tools — Profiles include editable details like services, hours, images, logos, and payment methods. Owners can post promotional updates, run banner campaigns with CTAs, and embed their profiles on external websites using custom JS widgets. Each profile is designed to be both mobile-friendly and SEO-optimized.
  • Subscription handling and role-based access — The platform supports paid promotional features through Braintree for secure, frictionless transactions. Business owners can grant role-based access to team members or agency partners to help manage listings and campaigns, all without sharing login credentials.
  • Built-in resilience and system monitoring — Real-time API health monitoring via Runscope and SMS alerts helps engineers respond quickly to outages. Cloudflare protects against potential DDoS cyberattacks, and Kubernetes automatically scales resources under peak traffic conditions. Even atypical load patterns, like sync floods from third-party platforms, are managed without service interruption.

9. Project Outcomes

  • High visibility without a website — Businesses rank high in local search results and directories, even without standalone websites, thanks to deep SEO optimization and internal linking across 8M+ listings.
  • Stronger search performance — Listings frequently rank in Google's top 3 for localized queries due to schema markup, fast-loading pages, and search-friendly front-end architecture.
  • Efficient management — Owners save time and reduce effort by managing listings, reviews, and updates on a single, intuitive dashboard.
  • Broad reach — Businesses improve visibility by syncing listings with trusted platforms like Google My Business, Yext, and Foursquare — reaching customers wherever they search.
  • Improved scalability and stability — The cloud-native infrastructure comfortably handles traffic at 70,000+ page loads per day and up to 500 API requests per second, with automated scaling for spikes.
  • Comprehensive analytics — Clear reports help business owners understand how customers find and engage with listings, enabling smarter, data-driven decisions.

10. Engain AI-Native Approach

ListingHub is built and supported using Engain's AI-native delivery model. Senior engineering expertise is combined with AI agent orchestration so that 20% of effort goes into core development and 80% into automated, AI-driven maintenance — radically cutting operational cost without giving up output quality.

Capability How it applies to ListingHub
AI agent orchestration AI agents are wired into the delivery pipeline to assist with code generation, review, and triage across the dashboard, public site, sync layer, and infrastructure tracks.
AI-augmented engineering workflows Senior engineers use AI-augmented workflows for faster delivery, fewer bugs, and lower cost compared with traditional agency staffing.
AI-powered QA Functional, integration, and regression tests are accelerated by AI-assisted test generation and anomaly detection — particularly valuable in a project running with no dedicated QA team.
Clickable prototype on kickoff Prototype-first delivery (clickable prototype within 24 hours of kickoff) is used to validate UX flows before full implementation.
AI-automated maintenance Once features ship, AI agents take over routine maintenance, bug triage, and auto-fix patterns — targeting an ~80% reduction in ongoing support effort, exactly the type of work that previously kept the on-call engineer busy with bot floods and sync incidents.
Automated monitoring & observability Full observability from day one: API health tracking, performance metrics, anomaly detection, and proactive optimization on top of the existing Runscope / Cloudflare / Kubernetes stack.
Strategic AI partnerships Direct collaboration with leading AI providers ensures the most capable models are used for each specific task in the pipeline (codegen, review, monitoring).
Industry coverage Engain delivers the highest ROI in high-volume sectors — Real Estate, E-commerce (UK & US), Legal & Security, and Service Sector. ListingHub sits squarely in the Service Sector / E-commerce intersection: high-volume directory operations driving operational cost.

11. Project Timeline

Phase Period Key Milestones
Discovery & system planning Apr 2025 – May 2025 Requirements gathering, UX research, information architecture, wireframes.
Backend architecture & data strategy Jun 2025 – Aug 2025 Modular service split; PostgreSQL tuning; full-text search redesign; critical microservice rewrite to Java.
Frontend & public website Aug 2025 – Oct 2025 React-based business dashboard, SEO-optimized public pages with Prerender.IO and structured data.
Integrations & sync layer Oct 2025 – Dec 2025 Google Business Profile, Yext, Foursquare, Vendasta, Salesforce, Braintree, Twilio, SendGrid integrations.
Payments & user management Dec 2025 – Jan 2026 Role-based access, premium subscription flows, claim verifications.
Cloud infrastructure improvements Jan 2026 – Mar 2026 Distributed microservices on GCP; Docker/Kubernetes; auto-scaling; isolated environments.
Monitoring & ongoing support Mar 2026 – Present Runscope, Cloudflare, Kubernetes-based stability operations and AI-automated maintenance.

Case Study | ListingHub | Confidential

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