Java Technical Lead

SDE 3 Backend

Experience Range: 7 to 14 years

Must-Have Technical Skills (Backend):

• Strong foundations in

  Data Structures & Algorithms

  , including time and memory complexity analysis.
• Deep expertise in

  Core Java

  : OOPs, Polymorphism, Multithreading, Executor Service, Synchronization, Locks, Semaphores.
• Hands-on experience with

  Functional Programming

  (Consumer, Supplier, etc.).
• Strong knowledge of

  Spring Core & Spring Boot

  , including JDBC Templates vs ORM usage and trade-offs.
• Solid understanding of

  SOLID principles

  and

  GoF design patterns

  .
• Practical exposure to

  System Design

  , including

  CAP Theorem

  .
• Experience with

  Microservices Architecture

  , including REST vs Event-Driven approaches.