Redis - In-Memory Database
What is Redis?
Redis (Remote Dictionary Server) is an open-source, in-memory database created in 2009 by Salvatore Sanfilippo. It is known for its extreme speed, rich data structures, and versatile use cases.
Advantages of Redis in Business Projects
Why is Redis the most popular in-memory database? Key advantages backed by facts and real-world experience.
Drawbacks of Redis – An Honest Assessment
Every technology has limitations. Here are the main drawbacks of Redis and strategies to mitigate them in real projects.
What is Redis Used For?
The main use cases of Redis in 2025, with examples from top tech companies.
Cache Layer and Application Acceleration
Lightning-fast cache for databases, API responses, session data
Twitter (timeline cache), Stack Overflow (query cache), GitHub (API cache)
Session Storage and User State
Storing user sessions, shopping carts, temporary data
Pinterest (user sessions), Airbnb (booking state), Shopify (cart data)
Real-Time Analytics and Pub/Sub
Live metrics, chat systems, activity feeds, event streaming
Instagram (activity feeds), Slack (real-time messaging), Uber (live tracking)
Task Queues and Background Jobs
Background job processing, task scheduling, workflow management
GitHub Actions (job queues), Spotify (playlist generation), Netflix (content processing)
Redis Projects – SoftwareLogic.co
Our Redis implementations in production – caching, sessions, real-time applications.
OMS system for thousands of operations per minute
Fulfillment handling for hundreds of stores required a central order management system
We built a central OMS platform with integrations to all major e-commerce platforms
Thousands of orders processed automatically daily, zero manual work on labels
Marketing automation for e-commerce stores
E-commerce companies needed tools for marketing campaign automation and personalization
We created a platform connecting on-site marketing (pop-ups, banners) with off-site (email, sms, webpush)
40% conversion increase, campaign automation for hundreds of online stores
ERP system with electronic document workflow
Small and medium companies needed an affordable ERP system
We built a comprehensive ERP with electronic document workflow
Accounting process automation, integration with external systems
Automated order cost analysis
Hundreds of thousands of orders monthly, no fast tool for analyzing Allegro costs and commissions
We built an API that automatically retrieves and processes cost data from multiple Allegro stores
Full automation of financial data, elimination of manual work, faster business decisions
Legacy PHP modernization to scalable Django
Old PHP application didn't scale and was hard to maintain
We rewrote the entire platform to Python/Django while preserving functionality
10x better performance, easier feature additions, system stability
FAQ: Redis – Frequently Asked Questions
Comprehensive answers to questions about Redis – the in-memory database.