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Prod access please!! 😊
💭
Prod access please!! 😊
5 followers · 1 following

Achievements

Achievement: Pair ExtraordinaireAchievement: QuickdrawAchievement: YOLOAchievement: Pull Shark

Achievements

Achievement: Pair ExtraordinaireAchievement: QuickdrawAchievement: YOLOAchievement: Pull Shark

Organizations

@OpenGenus @zero-to-mastery @EddieHubCommunity @WarriorWhoCodesCommunity

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xvisierra/README.md

💫 About Me

👋 Hi, I’m Sameer Kumar Singh

Results-driven Java Backend Engineer with ~2 years of experience building and modernizing enterprise-scale backend systems in cloud-native environments.
Currently working as Software Engineer I at HashedIn by Deloitte, focusing on Spring Boot microservices, REST APIs, and platform modernization.

  • 💻 Designing and maintaining production-grade backend services using Java 21, Spring Boot 3, Spring MVC, Spring Security, Hibernate/JPA
  • ☁️ Contributing to legacy Oracle WebLogic → Spring Boot → Azure modernization initiatives, including server-side UI migration (JSP → Thymeleaf)
  • ⚡ Improving system performance using Apache Kafka (event streaming) and Redis (caching), reducing data-access latency
  • 🧪 Enforcing high code quality with JUnit 5, Mockito, SonarQube and CI/CD pipelines
  • 🤖 Exposure to Generative AI & LLM-based internal tools to automate workflows and improve developer productivity

🧠 Core Technical Focus

Backend & Architecture

  • Java (8, 17, 21), Spring Boot 3, Spring MVC, Spring Security
  • Microservices, REST APIs, Hibernate/JPA, Thymeleaf
  • Apache Kafka, Redis

Databases

  • PostgreSQL, OracleDB, MySQL, MongoDB, DB2

Cloud & DevOps

  • Microsoft Azure, Docker, Kubernetes
  • Jenkins, GitHub Actions, CloudBees
  • Oracle WebLogic (Legacy Migration)

Testing & Tooling

  • JUnit 5, Mockito, SonarQube
  • Swagger/OpenAPI, Postman, Valgrind
  • Git, Linux, Shell/SSH

🏆 Highlights

  • 🥇 Squad of the Quarter & multiple Spot Awards at HashedIn by Deloitte
  • 🚀 Delivered large-scale backend modernization for US & Canada transaction systems
  • 🧩 Solved 600+ DSA problems | Max 1759 LeetCode | 6⭐ HackerRank

🌐 Connect with Me

LinkedIn GitHub HackerRank GeeksforGeeks CodeChef

📊 GitHub Stats

✍️ Random Dev Quote

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  1. pdmsc pdmsc Public

    Personal diary management system for generating daily records & adding/updating entries safely. Save time with this convenient tool for managing personal details.

    C 5

  2. infy infy Public

    AI-powered college chatbot for students. Utilizes machine learning and Google Dataflow to assist with academic and administrative tasks. Ask it anything!

    HTML 4

  3. mapcoloring mapcoloring Public

    C++ console app that demonstrates a map colouring such that regions with a common border have different colors.Uses a greedy algorithm to visualize coloring of maps & demonstrate solution to graph …

    C 3

  4. srms srms Public

    Student result management system built with SQL, PHP, HTML, CSS, JavaScript, XAMPP, and Bootstrap. Easily track and manage student results with this intuitive platform.

    JavaScript 4 1

  5. cryptock cryptock Public

    Cryptock is a web-based project that allows users to track the live prices of various cryptocurrencies and view their profit/loss on their investments through a personalized dashboard. The project …

    HTML 3 1

  6. sameer-portfolio sameer-portfolio Public

    My portfolio website, showcasing my work and skills. Built with HTML, CSS, and JavaScript.

    HTML 3