---
title: "Vijay Belwal (@Vijay23) | Hashnode"
description: "Software engineer. Read the latest articles by Vijay Belwal on Hashnode."
url: "https://hashnode.com/@Vijay23"
---

@Vijay23

# Vijay Belwal

@Vijay23 · Joined April 2025

Software engineer

### [Distributed Tracing with OpenTelemetry](https://vijay-belwal.hashnode.dev/distributed-tracing-with-opentelemetry?utm_source=hashnode&utm_medium=feed)

Let's say your POST /orders API is taking 5 seconds. Behind it, the Order Service calls Inventory Service, Payment Service and Notification Service, and some of them talk to databases. Metrics tell yo

6 min read · [vijay-belwal.hashnode.dev](https://vijay-belwal.hashnode.dev/distributed-tracing-with-opentelemetry?utm_source=hashnode&utm_medium=feed)

[Oct 24](https://hashnode.com/posts/distributed-tracing-with-opentelemetry/6adce7469efa3eb1f71714ea)

### [Observability basics for backend developers](https://vijay-belwal.hashnode.dev/observability-basics-for-backend-developers?utm_source=hashnode&utm_medium=feed)

Let's say it is 2 AM and your phone buzzes. The alert says: "Response time above 3 seconds.(above SLA)" Good, you know something is wrong. But where? Which service? Which query? Since when? The alert

5 min read · [vijay-belwal.hashnode.dev](https://vijay-belwal.hashnode.dev/observability-basics-for-backend-developers?utm_source=hashnode&utm_medium=feed)

[Oct 24](https://hashnode.com/posts/observability-basics-for-backend-developers/6adc927d347a89b188448330)

### [Jev - System One Decision Model](https://vijay-belwal.hashnode.dev/jev-system-one-decision-model?utm_source=hashnode&utm_medium=feed)

Let's say you are building a chatbot or an AI agent. Before every user message reaches your main model, you want one safety check: "Is this a prompt injection attempt?" The answer you need is a simple

2 min read · [vijay-belwal.hashnode.dev](https://vijay-belwal.hashnode.dev/jev-system-one-decision-model?utm_source=hashnode&utm_medium=feed)

[Oct 18](https://hashnode.com/posts/jev-system-one-decision-model/6ad7c6a711f0c97ead423cb0)

### [Kubernetes Services: How Pods Talk to Each Other—and to You](https://vijay-belwal.hashnode.dev/kubernetes-services-how-pods-talk-to-each-otherand-to-you?utm_source=hashnode&utm_medium=feed)

Kubernetes Services ensure reliable pod communication and external access using NodePort, ClusterIP, and LoadBalancer

6 min read · [vijay-belwal.hashnode.dev](https://vijay-belwal.hashnode.dev/kubernetes-services-how-pods-talk-to-each-otherand-to-you?utm_source=hashnode&utm_medium=feed)

[Aug 28](https://hashnode.com/posts/kubernetes-services-how-pods-talk-to-each-otherand-to-you/68698c5809551712ca659c4c)

### [Kubernetes Deployment: Keeping Your Application Secure in Times of Change](https://vijay-belwal.hashnode.dev/kubernetes-deployment-keeping-your-application-secure-in-times-of-change?utm_source=hashnode&utm_medium=feed)

Let’s say your app is running beautifully in production. ✅ Users are happy ✅ Logs are clean ✅ Revenue is climbing Now... imagine you have to upgrade the app. New version just dropped. Do you just dele

5 min read · [vijay-belwal.hashnode.dev](https://vijay-belwal.hashnode.dev/kubernetes-deployment-keeping-your-application-secure-in-times-of-change?utm_source=hashnode&utm_medium=feed)

[Aug 22](https://hashnode.com/posts/kubernetes-deployment-keeping-your-application-secure-in-times-of-change/6869430bc2e96d00006efd8c)