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⇱ Wallace Espindola - DZone Member


Wallace Espindola

Software Engineer Sr. & Architect at W-Tech IT Solutions

Company website: https://www.wtechitsolutions.com

Brussels, BE

Joined Jun 2014

https://www.wtechitsolutions.com

About

Software engineer, architect, java & python developer, tech writer & speaker, technology enthusiast, eternal learner, photographer, father, music lover, passionate about motorcycles & travel, and always enjoying life!

Stats

Reputation: 448
Pageviews: 42.0K
Articles: 5
Comments: 1

Articles

Contract-First Integration: Building Scalable Systems With Flyway, OpenAPI, and Kafka
Define API, event, and DB contracts upfront to enable parallel development, catch breaking changes in CI, and maintain consistent, reliable integrations.
May 29, 2026
· 2,592 Views
Building Realistic Test Data in Java: A Hands-On Guide for Developers
Learn how to build a simple API that delivers believable fake users, perfect for testing, demos, or UI prototyping. No more “John Doe” data, finally, real-feel mocks.
October 10, 2025
· 3,341 Views · 8 Likes
Top NoSQL Databases and Use Cases
Listing Top NoSQL databases in use nowadays, with a comprehensive comparison, and also the main proposed uses for each one to help to decide which is the best for you
July 2, 2025
· 5,794 Views · 3 Likes
Automating Python Multi-Version Testing With Tox, Nox and CI/CD
Automate Python testing across multiple versions with Tox and Nox. Tox offers declarative testing, Nox provides flexibility, and both can be run with CI/CD pipelines.
December 26, 2024
· 6,186 Views · 1 Like
Secure Password Hashing in Java: Best Practices and Code Examples
This article covers secure password hashing in Java using modern algorithms like BCrypt, Argon2, and PBKDF2 with salting and computational intensity for better security.
December 22, 2023
· 24,126 Views · 4 Likes

Comments

Top NoSQL Databases and Use Cases

Jul 24, 2025 · Wallace Espindola

Hello, thanks for your comment. Yes, Redis, as a database, has both free and paid options. The core Redis functionality is available for free under the Redis Open Source license. This includes the database, its core data structures, and many features like JSON, time series, and search capabilities. For production use, Redis also offers the cloud-based service called Redis Cloud. There is a free tier is available in Redis Cloud for learning and development, more advanced features and higher capacity require paid subscriptions.

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