@realVibhorGupta

How to Mentor Junior Engineers Without Slowing Down Delivery

2d ago · 6 min read · Engineering teams often face a common dilemma. You have: aggressive product timelines complex systems to build junior engineers who need guidance At first glance, mentoring seems like something t

How to Design a Notification System That Sends Billions of Messages per Day

4d ago · 6 min read · Every large product eventually faces this challenge. You need to send notifications across multiple channels: Email SMS Push notifications But not just thousands. Billions of messages per day. Ex

Investigating Intermittent Latency Spikes in Production Systems

Mar 6 · 6 min read · Production systems rarely fail loudly. Instead, they fail quietly and inconsistently. Your dashboards look normal.Error rates are low.CPU usage is stable. But users report something frustrating: “The

Why “waiting longer” is one of the biggest reliability mistakes

Feb 27 · 3 min read · ⚠️ The problem When a dependency becomes slow, most systems try to be “safe” by: increasing timeouts. This looks harmless.In production, it is one of the fastest ways to trigger cascading failures.

Retry Storms & Circuit Breakers – How Small Failures Take Down Big Systems

Feb 25 · 5 min read · How small failures take down big distributed systems If you are building real-world platforms (like ride-booking, SOS, or marketplace systems with many backend services), this is one of the most pract