Smart Search System with AI-assisted Query Understanding

Product team
1 backend engineer
1 frontend engineer
QA support during tuning phase
Duration: 6 months
Technologies
Laravel
PostgreSQL
Redis
Blade / HTML
Alpine.js
OpenAI API
Production Context
The project focused on building a smart search system capable of handling real-world free-text queries across large product catalogs.
Unlike simple keyword-based search, the system needed to process noisy input, including typos, fuzzy matches, transliteration, synonyms, and mixed-language queries, while maintaining fast response times and stable relevance.
The system was designed for large, evolving product catalogs where search accuracy directly impacts conversion, user trust, and operational efficiency. Incorrect brand detection or unstable relevance ranking could result in poor discovery, lost revenue, or increased manual intervention from support teams.
The Challenge
The main challenge was achieving accurate and predictable search results under imperfect input conditions without sacrificing performance or stability.
A critical requirement was ensuring that AI-assisted components could enhance relevance without introducing non-deterministic behavior, latency spikes, or system-level failures.
Our Role
We were responsible for the design and implementation of the search architecture, including relevance modeling, brand detection logic, AI-assisted query processing, performance optimization, and UI integration.
The Solution
Classical search techniques form the deterministic core of the system, handling normalization, tokenization, fuzzy matching, synonym expansion, and transliteration.
AI-assisted parsing is applied selectively to enrich queries with structured intent only when it improves relevance, while strict validation and fallback mechanisms preserve predictable behavior.
Key Capabilities
- Advanced free-text query processing with fuzzy matching and normalization
- Accurate brand detection across typos, split tokens, and mixed-language queries
- AI-assisted query structuring with strict validation and rate control
- Deterministic fallback logic ensuring stable behavior without AI
- Custom weighted scoring and relevance ranking
- High-performance execution with optimized indexes and caching
- Interactive, server-rendered search UI
The Process
Search behavior analysis
Real user queries were analyzed to identify common typo patterns, brand-related edge cases, and acceptable relevance trade-offs. This analysis shaped the balance between recall and precision and defined where deterministic logic was required.
Search architecture & scoring model
A layered search pipeline was designed to separate deterministic matching from optional AI-assisted enrichment. This approach allowed relevance improvements without introducing non-deterministic behavior or unstable scoring outcomes.
Development & AI integration
The core search logic was implemented with modular normalization and matching layers. AI-assisted parsing was added selectively, with strict output validation and fallback paths to ensure the system remained fully functional without AI.
Optimization & stabilization
Performance tuning focused on indexing strategies, caching, and minimizing expensive operations to maintain consistent response times under production load and large catalogs.
Result
The result is a production-ready smart search system that delivers high-quality, relevant results under real-world query conditions while maintaining predictable behavior, stability, and performance at scale.






