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AIaaS Personalization Engine for Retail Product Recommendations

AIaaS Personalization Engine for Retail Product Recommendations

A fashion retail company headquartered in London, UK, managed a fast-growing e-commerce platform that served millions of users daily. Despite having rich product data, the site displayed static product carousels that failed to adapt to user behavior. To address personalization and conversion challenges, the company engaged our AI engineering team to build a plug-and-play AIaaS recommendation engine capable of real-time personalization using browsing history and purchase patterns.

Image representing case study

18%

Increase in conversion rate

100

ms average response latency

27%

Growth in average session time

About  

Problem Statement

  • Static product lists offered identical recommendations to all users.
  • Session drop-offs were high due to irrelevant suggestions.
  • Existing analytics tools lacked a real-time API layer for personalization.
  • The platform had no central engine to learn from user behavior and trends.
  • Marketing teams needed dynamic segments without re-engineering the stack.

Industry: Retail & E-commerce

Services: AI-as-a-Service (AIaaS), Recommendation Systems, Automation

Region: United Kingdom

Our Tech Stack

Tech stack we used

Solution Approach

  • Designed an AIaaS microservice architecture to handle millions of personalization calls daily.
  • Built recommendation models in TensorFlow Recommenders using purchase history + item metadata.
  • Streamed user activity via Kafka for instant vector updates and contextual ranking.
  • Implemented Redis in-memory serving for sub-100 ms response latency.
  • Deployed the model training and inference workflows on AWS SageMaker with auto-scaling.
  • Integrated FastAPI and Lambda for secure external access by the retail frontend.
  • Built a metrics dashboard in Grafana tracking CTR, conversion impact, and request latency.

Benefits

  • Conversion rate improved by 18% after deployment.
  • Achieved sub-100 ms latency for recommendation calls.
  • Enabled real-time personalization without backend code changes.
  • Enhanced customer engagement with dynamic cross-sell and up-sell suggestions.
  • Delivered a scalable AIaaS framework usable across other retail channels.

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