---
title: "Ujjawal Kumar - Application Software Engineer - 2 in Bengaluru | Tal"
description: "Meet Ujjawal Kumar, Backend Engineer @ Oracle | Java · Spring Boot · Kafka · Kubernetes | Distributed Systems | Microservices | Open to SDE-2 roles | IIIT Jabalpur based in Bengaluru. AI stack includes antigravity, codex, and opencode."
image: "https://tal.club/meet/ujjawal-kumar-2/share-image"
---

# Ujjawal Kumar on Tal

## Headline

Backend Engineer @ Oracle \| Java · Spring Boot · Kafka · Kubernetes \| Distributed Systems \| Microservices \| Open to SDE\-2 roles \| IIIT Jabalpur

## About

I build distributed, cloud\-native backend systems for carrier\-grade 5G infrastructure at Oracle\. For the past 2\.5 years I've been part of the 5G Policy Control Function \(PCF\) team, working on the backend components that enforce real\-time policy decisions for millions of 5G subscribers — covering 3GPP interfaces \(N7, N15, N28\) and integrations with core network functions like SMF, AMF, and CHF\. Outside of Oracle, I've built personal projects to sharpen my distributed systems thinking — a Kafka\-based order processing system and a clustered job scheduler with leader election and Redis\-based distributed locking\. 🛠 Tech I work with daily: Java · Spring Boot · Apache Kafka · Kubernetes · Docker · PostgreSQL · Redis · REST APIs · Python 📍 Bengaluru \| Open to Backend SDE\-2 roles at product companies, fintech, infrastructure, or telecom tech 📬 ujjawalkumar1223@gmail\.com

## Location

Bengaluru

## AI stack

antigravity

codex

opencode

## Work experience

Application Software Engineer \- 2 at Oracle, Aug 2023 \- Present · 3 y 2 mo, Bengaluru, \* Leading design of a Python\-based orchestration tool for zero\-downtime multi\-site GR PCF upgrades with live traffic continuity validation using PerfGo \* Designed RESTful APIs for 5G PCF policy enforcement per 3GPP N7/N15/N28 specs, integrating with SMF, AMF, and CHF network functions \* Architected pod\-level congestion control across Kubernetes microservices — reduced request failure rates by 27% \* Implemented mTLS authentication across 15\+ services; zero\-downtime rollout orchestration cut failed deployments by 25% \* Built AI\-driven log triage system \+ Jira/Slack integration — reduced MTTR by 30%, on\-call time by 35% \* Optimized CI/CD pipelines: 24 hrs → 9 hrs runtime \(55%\+ improvement\) \* Skills: Java · Spring Boot · Apache Kafka · Kubernetes · Docker · PostgreSQL · Redis · Python · REST API Design · Distributed Systems

Software Engineering Intern at Oracle, Jan 2023 \- Jul 2023 · 7 mos, Bengaluru, \* Built automated validation pipelines for 120\+ regression scenarios across 5G PCF features — 45% increase in release coverage \* Resolved Kubernetes deployment failures across test environments, improving backend build stability

## Education

Bachelor of Technology \- BTech, computer science and engineering, Indian Institute of Information Technology, Design and Manufacturing, Jabalpur

[View the original profile](https://tal.club/meet/ujjawal-kumar-2)

```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "Person",
      "@id": "https://tal.club/meet/ujjawal-kumar-2#person",
      "name": "Ujjawal Kumar",
      "url": "https://tal.club/meet/ujjawal-kumar-2",
      "image": "https://tal.club/meet/ujjawal-kumar-2/profile-photo.jpg",
      "description": "Meet Ujjawal Kumar, Backend Engineer @ Oracle | Java · Spring Boot · Kafka · Kubernetes | Distributed Systems | Microservices | Open to SDE-2 roles | IIIT Jabalpur based in Bengaluru. AI stack includes antigravity, codex, and opencode.",
      "jobTitle": "Application Software Engineer - 2",
      "worksFor": {
        "@type": "Organization",
        "name": "Oracle"
      },
      "hasOccupation": {
        "@type": "Occupation",
        "name": "Application Software Engineer - 2"
      },
      "homeLocation": {
        "@type": "Place",
        "name": "Bengaluru"
      },
      "alumniOf": [
        {
          "@type": "EducationalOrganization",
          "name": "Indian Institute of Information Technology, Design and Manufacturing, Jabalpur"
        }
      ],
      "knowsAbout": [
        "antigravity",
        "codex",
        "opencode"
      ],
      "mainEntityOfPage": {
        "@id": "https://tal.club/meet/ujjawal-kumar-2#webpage"
      }
    },
    {
      "@type": "ProfilePage",
      "@id": "https://tal.club/meet/ujjawal-kumar-2#webpage",
      "url": "https://tal.club/meet/ujjawal-kumar-2",
      "name": "Ujjawal Kumar on Tal",
      "description": "Meet Ujjawal Kumar, Backend Engineer @ Oracle | Java · Spring Boot · Kafka · Kubernetes | Distributed Systems | Microservices | Open to SDE-2 roles | IIIT Jabalpur based in Bengaluru. AI stack includes antigravity, codex, and opencode.",
      "dateModified": "2026-10-14T12:04:19.628Z",
      "isPartOf": {
        "@id": "https://tal.club/#website"
      },
      "mainEntity": {
        "@id": "https://tal.club/meet/ujjawal-kumar-2#person"
      },
      "primaryImageOfPage": {
        "@type": "ImageObject",
        "url": "https://tal.club/meet/ujjawal-kumar-2/profile-photo.jpg",
        "contentUrl": "https://tal.club/meet/ujjawal-kumar-2/profile-photo.jpg",
        "caption": "Ujjawal Kumar profile photo on Tal"
      },
      "inLanguage": "en-IN"
    }
  ]
}
```