---
title: "Case Studies"
url: https://janarraj.com.my/case-studies/
date: 2026-09-14
modified: 2026-10-20
lang: en
author: ""
description: "Digital marketing, delivery performance and e-commerce case studies with clearly dated comparisons, confirmed responsibilities and measurement context."
word_count: 252
---

# Case Studies

[Home](/)/Case Studies{ SELECTED WORK }
# Real work. Measured outcomes.
Performance marketing, search, local discovery and automation presented as problems, decisions and results rather than a list of responsibilities.

[01 / SELECTED WORK
## POS to PostgreSQL Migration & Real-Time Sync
Migrating 100k+ historical POS transactions into a production-grade relational database with automated, zero-duplicate ETL syncs.

Explore the work ↗](/case-studies/pos-to-postgresql-migration/)[02 / SELECTED WORK
## Google Ads & Delivery Performance
January–September 2025 versus 2026: reported delivery cases, Google Ads expenditure and spend per reported case, with measurement limits made clear.

View latest delivery results ↗](/case-studies/google-ads-growth-2024-2025/#delivery-results-2026)[03 / SELECTED WORK
## E-commerce & Marketplace Performance
January–September 2025 versus 2026: aggregate e-commerce sales, car batteries sold and reported expenses alongside marketplace campaign coordination.

View the e-commerce case ↗](/case-studies/ecommerce-marketplace-performance/)[04 / SELECTED WORK
## Google Business Profile Expansion
Turning branch-by-branch profile work into a repeatable local-search operating process.

Explore the work ↗](/case-studies/google-business-profile-expansion/)[05 / SELECTED WORK
## Marketing Automation System
Reducing repetitive marketing operations by connecting events, APIs, structured data and reporting workflows.

Explore the work ↗](/case-studies/marketing-automation-system/)[06 / SELECTED WORK
## Meta Ads Enquiry Engine
Using paid social activity to generate measurable enquiry conversations rather than reporting campaign activity alone.

Explore the work ↗](/case-studies/meta-ads-enquiry-engine/)[07 / SELECTED WORK
## Multi-location Digital Operations
Connecting search, paid media, local profiles, analytics and automation inside a multi-location operating environment.

Explore the work ↗](/case-studies/multi-location-digital-operations/)[08 / SELECTED WORK
## SEO → AEO → GEO Transition
Expanding conventional search optimisation into answer-engine and generative-engine visibility.

Explore the work ↗](/case-studies/seo-aeo-geo-transition/)[09 / SELECTED WORK
## SEO Growth & Technical Optimisation
Improving search visibility and technical site health while keeping both positive and negative traffic outcomes visible.

Explore the work ↗](/case-studies/seo-growth-technical-optimisation/){ YOUR NEXT GROWTH MOVE }[Let’s connect↗](/contact/)A growth challenge. A better workflow.
A conversation worth having.

[Start a conversation ↗](/contact/)