Journal of Seun Matt and his expertise

Latest Articles

May 4, 2026 16 minutes read

Java
SpringBoot

Deploy Spring Boot Applications with Zero Downtime on Kubernetes

Deploy your Spring Boot application to a Kubernetes cluster with zero downtime using a combination of termination grace period and context closed listener. Safely release changes to production at any time of the day without degrading user experience.

Read Full Article

December 15, 2025 9 minutes read

Career Development

Three Years at Cellulant - My 2025 Career Recap

If 2025 were to be a movie, the classic, Shoot ‘Em Up, captures my career experience. It started as planned and then got interrupted by high-stake projects. I recorded some career milestones, major technical achievements, and learnt some lessons

Read Full Article

May 11, 2025 13 minutes read

Career Development

Want to Become a Senior Software Engineer? Do These Things

Let’s discuss practical, day-to-day steps you can take as a professional aspiring to become a Senior Software Engineer or higher. Starting with the basics, deepening your knowledge, proactivity and taking responsibility, you’ll be setup for a better offer

Read Full Article

March 8, 2025 8 minutes read

Java
SpringBoot
Video

How to Configure Testcontainers in Spring Boot 3.x, 2.x and Reactive

Testcontainers allows you to spin up lightweight, disposable containers for databases and more. Enabling running of integrated Spring Boot tests without mocking

Read Full Article

January 23, 2025 2 minutes read

Engineering Management
Career Development
Video

Effective Performance Evaluation for Software Engineers | Team Contribution

The essence of a team is such that the group output is greater than sum of individual outputs. A team where one or two are not contributing will have less output, compared to if ALL members are delivering.

Read Full Article

January 22, 2025 2 minutes read

Engineering Management
Career Development
Video

Effective Performance Evaluation for Software Engineers | A Practical Guide

It is important to effectively evaluate the performance of Software Engineers so that we can promote the qualities that move the company towards achieving its objectives

Read Full Article

December 31, 2024 1 minute read

Java
Video

How to automatically enforce coding standards for a Java codebase with pre-commit

Learn how to automate Java coding standards enforcement using Pre-commit, Precommit4j, and Checkstyle with this step-by-step tutorial

Read Full Article

December 7, 2024 6 minutes read

Career Development

Two Years at Cellulant - My 2024 Career Recap

2024 is a unique and eventful year. Weddings, babies, dealing with legacy systems. A lot of things happen that impacted my career. In this recap, I narrated the challenges, victories and lessons of 2024 that will continue to shape me as an Engineering leader

Read Full Article

October 12, 2024 12 minutes read

Java
SpringBoot

Introduction to Spring Boot

A beginner-friendly guide to Spring Boot, covering project setup, structure, and the use of MVC patterns. Ideal for developers looking to build cloud-native web applications with minimal configuration.

Read Full Article

September 2, 2024 1 minute read