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Niraj Das

Senior Backend Engineer | Java · Spring Boot · Distributed Systems · Apache Kafka · Kubernetes | Fintech & Payments | OCI | 9+ Yrs

Role
Sde Iii at Oracle
Location
Hyderabad, TG, IN
LinkedIn followers
500 followers
Information TechnologyView LinkedIn profile

About Niraj Das

I design and scale backend systems built for real-world traffic — high availability, low latency, and distributed across multiple regions. With 9+ years across Fintech, Payments, Cloud Infrastructure, and CRM domains, I\'ve owned distributed microservices processing millions of transactions and events — maintaining 99.99% uptime SLAs. My core stack: Java (8–21), Spring Boot, Apache Kafka, Kubernetes (K8s), and Oracle Cloud Infrastructure (OCI). What I\'ve built and owned: Fraud prevention and payment authentication systems across APAC (Visa — 45+ global markets) High-throughput event-driven messaging pipelines processing millions of events/month (Oracle) Multi-region deployment automation reducing release cycle time by 40% Kubernetes HPA autoscaling — cut cloud costs by 18%, improved availability Backend systems with on-call ownership: P1 incident response, structured observability, SLA adherence I work best on teams that value engineering ownership, clean architecture, and reliability at scale.

Experience

  1. Sde Iii

    Oracle

    Apr 2025 — Present · Hyderabad, IN

    Backend Engineering | High-Throughput Messaging Systems | Distributed Microservices | Oracle Cloud InfrastructureBuilding and scaling event-driven backend services in Java (Spring Boot) that power Oracle Fusion Messaging — with a focus on throughput, reliability, and cloud efficiency on OCI.Key contributions: Built the Next Batch Marker framework — cut redundant DB lookups by 20% and improved throughput under peak load Implemented Kubernetes (K8s) HPA-based autoscaling — increased availability and reduced OCI cloud usage cost by 18% Automated OCI lifecycle workflows — saved 30+ engineer-hours/month and improved compliance adherence On-call ownership for critical production systems — resolved P1 incidents within SLA, maintained 99.99% uptime Improved observability across distributed messaging pipelines using structured logging and monitoring dashboardsStack: Java 17 · Spring Boot · Apache Kafka · Kubernetes · Oracle Cloud Infrastructure (OCI) · Docker · CI/CD · Prometheus

Education

  • MNNIT ALLAHABAD

    Bachelor’s Degree, Computer Science & Engineering

    2012 — 2016

  • KENDRIYA VIDYALAYA KATHMANDU , NEPAL

    High School, SCIENCE STREAM, CBSE

    2009 — 2011

  • DELHI PUBLIC SCHOOL DHARAN , NEPAL

    Class PREP - Class 10 , CBSE

    1998 — 2009

Skills

  • Microsoft Office
  • Microsoft Word
  • Sql
  • Linux
  • Microsoft Excel
  • C
  • Programming
  • Html
  • Data Structures
  • Java
  • C++
  • Mysql

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Niraj Das — Sde Iii at Oracle in Hyderabad, TG, IN | Unifers