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Java Developer Requirements

Strong Java programming skills
Minimum of 8 years practical software development experience
Robust object-oriented design pattern knowledge and implementation experience using Java
Python a plus
Advanced knowledge and experience developing and working with relational databases such as Sybase and MySQL
Experience with multi-tier application architecture and high performance distributed and in-memory caching solutions
Strong understanding of data modeling techniques
Strong foundation in SDLC best practices including test driven development, unit testing discipline, agile development, and CI/CD strategies
Education: B.E, B. Tech, MCA, MSc (CS) or equivalent
Passion for engineering highly available, performant systems
Creativity and resourcefulness to problem solve independently
Curiosity and drive to learn new things and build new solutions
Strong communication, time management, organization, attention to detail
Working knowledge of building and deploying distributed systems a plus
Experience with cloud technologies (e.g. Kubernetes, Docker, OpenStack) a plus

Java Developer Detailed Skills Matrix    

General Concepts  

     Core/OOPS            
    OOPs Concepts & Patterns    
    Java Keywords – Static, FInal, volatile, synchronized, transient, this super etc.
    Constructors    
    Abstract Classes and Interfaces    
    Dependency Injection    
    Exceptions – Checked, Unchecked    
    Access Specifiers    

    IO & Serialization    

    File IO/NIO    
    Serialization    

    Generic & Collections    

    Generics    
    Collections – List, Map, Set    
    Data Structures & Collections    

    Concurrency    

    MultithreadIng and Synchronization    
    Non-blockIng Collections/Utilities    

    Memory Management    

    JVM and Memory Management    
    Heap dump and thread dump analysis    
    GC/Memory TunIng    

SprIng Framework    

    SprIng Core    
    SprIng Boot (good to have)    
    StrIng Data    
    StrIng MVC    

Misc        

    GIT    
    Maven/Gradle    
    Design Patterns    
    Junit/TestIng    
    CachIng In general    
    Kafka (good to have)    
    Cassandra (good to have)    
    MessagIng – JMS/Queues (good to have)    
    Python    

Network and Distributed Aapplications    

    Knowledge of Protocols like IP, HTTP, TCP, FTP, UDP    
    Sockets, RMI, RCP    

Web Applications    

    Angular/TypeScript    
    JSP / Servlets    
    Markup Languages like XML and JSON    
    Service Oriented Architecture / Web Services – SOAP / REST / gRPC    
    Web Frameworks like Struts / SprIng    
    Web Technologies like HTML, CSS, Javascript and JQuery    

Java UI    

    Applets    
    Frameworks like SwIng, SWT, AWT, JavaFX (SWT only if you’re buildIng somethIng on top of Eclipse)    

Database / ORM    

    Cursors    
    SQL Queries – Inner Outer JoIns, Group By , HavIng    
    Stored Procedures    
    Triggers    
    Hibernate    

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