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im-vicky/README.md

Vicky Kumar

Backend Engineer (SDE-2)

Java | Spring Boot | Distributed Systems | Kafka | Cloud

πŸ“ Noida, India
πŸ“§ [email protected]
πŸ”— LinkedIn | GitHub


Profile Summary

Backend Engineer with 4+ years of experience building and supporting
distributed backend systems using Java, Spring Boot, Kafka, Redis, and SQL Server.
Worked across a 14+ microservices platform, driving observability improvements,
developer productivity initiatives, and a Spring Boot 2 β†’ 3 migration POC.
Currently developing AI-driven document redaction systems using Azure OpenAI and LangChain,
with a strong focus on performance, cost optimization, and production reliability.


Professional Experience

Ernst & Young (EY)

Backend Engineer (SDE-2 Equivalent)
Sep 2023 – Present | Noida, India

  • Replaced manual bug reproduction workflows by implementing
    MDC-based correlation IDs, enabling engineers to trace failures end-to-end
    in Elasticsearch using a single request ID and reducing incident investigation
    time from hours to seconds.
  • Drove a Spring Boot 2 β†’ 3 migration initiative across multiple services,
    resolving Jakarta namespace incompatibilities and validating a safe migration
    approach before handover during the QA phase.
  • Reduced new-developer onboarding time from weeks/months to 2–3 days by
    designing a local database migration workflow using DBeaver, enabling
    reliable local setups and faster, isolated bug reproduction.
  • Ensured SLA compliance, production stability, and safe releases through
    collaboration with QA and product teams.

Generative AI Document Redaction Platform

Python, Flask, Azure OpenAI, LangChain

  • Designed and implemented an AI-driven document redaction pipeline for masking
    sensitive information in enterprise documents at production scale.
  • Optimized prompt design and output structure, reducing token usage from
    ~10k to ~3k tokens and cutting AI processing costs by 60–70%, while
    improving redaction accuracy from ~60% to ~95%.
  • Built scalable workflows with document chunking, asynchronous processing,
    rate limiting, and content reassembly
    to balance throughput, latency, and cost.
  • Fixed formatting issues in OCR-processed PDF documents by programmatically
    reconstructing broken table structures, restoring ~95% layout accuracy,
    and integrated secure storage using Azure Blob Storage.

Spicemoney

Backend Engineer
Jun 2021 – Sep 2023 | Noida, India

  • Built and optimized backend services for real-time ticket booking, wallet
    top-ups, and KYC workflows
    supporting high-volume transactional traffic.
  • Integrated high-traffic third-party systems including IRCTC, RedBus, and PayU,
    ensuring fault tolerance and reliable payment processing.
  • Improved API latency and throughput using Redis caching and asynchronous processing.
  • Implemented Kafka-based event-driven flows for transactional and notification use cases.

Travel Union – Digital Onboarding Platform

  • Spearheaded backend development for a digital agent onboarding system,
    significantly reducing onboarding turnaround time.
  • Collaborated with frontend and business teams to design scalable REST APIs.
  • Maintained a ~97% bug resolution rate, improving platform stability and customer trust.

Technical Skills

Core Backend:
Java (8–21), Spring Boot, REST APIs, Microservices, Hibernate/JPA

Data & Messaging:
PostgreSQL, SQL Server, Kafka, Redis

System Design:
Distributed Systems, Event-Driven Architecture, Scalability, Performance Optimization

Cloud & DevOps:
Azure (Blob Storage, Service Bus, SQL Database), AWS S3, Docker, CI/CD (Azure DevOps)

AI & Automation:
Azure OpenAI, LangChain, Generative AI Pipelines, Prompt Engineering


Awards & Recognition

  • Counsellor Extraordinaire – EY
    Leadership excellence and team ownership
  • Ace Award – Spicemoney
    Top performer for technical impact and delivery

Education

Master of Computer Applications (MCA)
Lovely Professional University | 2019 – 2021

Bachelor of Computer Applications (BCA)
Jamuni Lal College | 2015 – 2018

Pinned Loading

  1. im-vicky.github.io im-vicky.github.io Public

    First portfolio

    HTML

  2. awesome-scalability awesome-scalability Public

    Forked from binhnguyennus/awesome-scalability

    The Patterns of Scalable, Reliable, and Performant Large-Scale Systems

  3. nodebestpractices nodebestpractices Public

    Forked from goldbergyoni/nodebestpractices

    βœ… The Node.js best practices list (September 2020)

    JavaScript

  4. system-design-primer system-design-primer Public

    Forked from donnemartin/system-design-primer

    Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

    Python

  5. system-design-questions system-design-questions Public

    Forked from arpitbbhayani/system-design-questions

    Problem statements on System Design and Software Architecture as part of Arpit's System Design Masterclass

    Python

  6. You-Dont-Know-JS You-Dont-Know-JS Public

    Forked from getify/You-Dont-Know-JS

    A book series on JavaScript. @YDKJS on twitter.