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Rivac AI Labs
Engineering & Software Development

Search Relevance Engineer

Search that returns technically-matching but practically-useless results quietly drives users away long before anyone files a complaint about it. We work on query understanding, embedding strategy, and ranking evaluation to make search results actually match user intent, using real query logs and click data rather than assumptions about what users want. This is for any product where internal search, product search, or document search is underperforming and it's hurting conversion, support load, or user retention. You get a ranking system measured against real queries with a defined relevance metric, not a search box that just happens to return something.

This is a capability we deliver for you as a service, not a role we’re hiring for.

How We’d Approach This

A clear, staged plan, not a black box

These are the service-specific steps inside our six-step process.

  1. 1

    Analyze real query logs and click-through data to diagnose where current search relevance is failing users.

  2. 2

    Build a pilot ranking change (embeddings, query rewriting, or re-ranking) against a query evaluation set.

  3. 3

    Review relevance metrics and sample results with your team before rolling the change out broadly.

  4. 4

    Deploy the tuned ranking with the evaluation set in place to catch regressions on future changes.

What You Get

Deliverables from this engagement

  • Tuned search ranking pipeline with measured relevance improvement
  • Query evaluation set for ongoing relevance testing
  • Embedding or ranking configuration documented
  • Dashboard tracking search relevance metrics over time

Six Ways We Could Architect This

Different engagement, different build, pick the shape that fits

There’s more than one way to deliver on this service. Browse a few of the ways we’d structure the work, depending on your speed, budget, and integration needs.

Read all 6 architectures as text

Lean Fast-Start Architecture

Query Handling

  • User Search Query
  • Basic Query Normalization

Retrieval

  • Keyword Index Search
  • Embedding Similarity Search
  • Simple Score Blend

Feedback Loop

  • Click Log Capture
  • Query Log Storage
  • Manual Relevance Judgment Set
  • Basic Relevance Metric
  • User Engagement Signal

Results

  • Ranked Results Returned
  • Iteration Backlog for Ranking Tweaks

Cloud-Native / Managed Services Architecture

Query Understanding

  • User Query
  • Query Understanding Service
  • Query Rewriting and Spell Correction

Hybrid Retrieval

  • Managed Search Engine Index
  • Managed Vector Database
  • Hybrid Ranking Service

Ranking and Re Ranking

  • Learning to Rank Model
  • Managed Model Serving Endpoint

Managed Evaluation

  • Click and Conversion Log Pipeline
  • Offline Relevance Eval Pipeline
  • Ranking Quality Dashboard

Delivery

  • Search API

Event-Driven & Automation-First Architecture

Triggers

  • New Query Event
  • Click Event
  • Scheduled Reindex Job

Automated Pipeline

  • Query Log Stream
  • Click Log Stream
  • Feature Aggregation Worker

Automated Retraining

  • Nightly Ranking Model Retrain Job
  • Automated Offline Eval
  • Eval Improves Over Current Model

Automated Deployment

  • Auto Promote New Ranking Model
  • Auto Rollback and Alert
  • Live Search Traffic

Enterprise-Grade & Compliance-Ready Architecture

Governance

  • Query and Click Data Access Policy
  • PII Scrubbing on Query Logs
  • Relevance Metric Definition Sign Off

Governed Pipeline

  • Search Index With Access Filters
  • Ranking Model With Version Control
  • Bias and Fairness Eval Suite

Controlled Rollout

  • A B Test With Statistical Guardrails
  • Human Sign Off Before Full Rollout
  • Rollback Plan if Regression Found

Audit and Compliance

  • Full Query Audit Log
  • Model Change Log
  • Compliance Reporting Dashboard

AI-Augmented, Human-in-the-Loop Architecture

AI Ranking

  • User Query
  • Embedding and Feature Extraction
  • Learning to Rank Model Scores Results

Confidence Assessment

  • Ranking Confidence and Novelty Score
  • Confidence Above Threshold

Human Review Gate

  • Auto Serve High Confidence Ranking
  • Relevance Analyst Reviews Low Confidence Query Class
  • Analyst Approves Ranking Change
  • Query Class Taxonomy Updated

Release

  • Approved Ranking Rule Shipped
  • Rejected Change Logged With Notes
  • Continuous Click Feedback Loop

Integration-Heavy / Ecosystem-Connected Architecture

Connected Systems

  • Product Catalog System
  • CMS Content Store
  • Customer Support Knowledge Base
  • Analytics Platform

Search Core

  • Unified Indexing Pipeline
  • Search and Ranking Service
  • Click and Conversion Log Store

Ecosystem Consumers

  • Ecommerce Site Search Bar
  • Mobile App Search
  • Internal Support Search Tool
  • Personalization Engine
  • A B Testing Platform

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Ready to get started?

Tell us what you’re trying to get done and we’ll help you find the highest-leverage place to start, scoped small enough to prove itself before you commit to anything bigger.

Talk to us about Search Relevance Engineer

Most engagements like this start as a $500–$2,500 pilot, see full pricing.

Questions? Book a free call