Backend Developer

Weekday AI
Full-time
On-site

This role is for one of Weekday’s clients
Min Experience: 5 years
Location: Tirunelveli
JobType: full-time

Requirements

We are seeking an experienced Senior Java Developer to join our dynamic engineering team. The ideal candidate will be responsible for the design, development, and maintenance of high-performance, scalable backend systems, working closely with cross-functional teams to deliver cutting-edge software solutions for global clients.

Key Responsibilities

Application Development & Integration:

  • Design and develop complex, scalable, high-performance Java-based backend systems.
  • Implement RESTful services and microservices using Spring Boot and related technologies.
  • Build efficient and testable code following best practices and design patterns.
  • Ensure secure authentication and authorization using OAuth2 and JWT.
  • Collaborate with QA for robust testing and defect resolution.
  • Optimize database design and query performance.

Architecture & Code Quality:

  • Engage in architecture-level discussions with solution architects.
  • Ensure high code quality through unit testing (JUnit), static code analysis, and peer reviews.
  • Create and maintain detailed technical documentation and coding standards.
  • Resolve bugs, memory management issues, performance bottlenecks, and multithreading challenges.

Collaboration & Agile Practice:

  • Work in cross-functional teams including product managers, UX designers, and developers.
  • Participate in agile ceremonies such as daily stand-ups, sprint planning, and retrospectives.
  • Stay up to date with emerging technologies and propose improvements.
  • Contribute to CI/CD pipelines and deployment best practices

Required Skills & Qualifications:

  • Bachelor’s degree in Computer Science, Engineering, or a related field.
  • 5+ years of hands-on backend development experience using Java.
  • Expertise in Spring Boot, Spring MVC, Spring Security, and Spring Data JPA.
  • Strong knowledge of RESTful API development and microservices architecture.
  • Familiarity with multithreading, synchronization, and memory management in Java.
  • Experience with relational databases (MySQL, PostgreSQL, Oracle) and strong SQL skills.
  • Knowledge of NoSQL databases such as MongoDB or Cassandra.
  • Proficiency in debugging, problem-solving, and algorithm design.

Preferred Qualifications:

  • Experience with authentication and authorization mechanisms (OAuth2, JWT).
  • Exposure to caching mechanisms (Redis, Ehcache).
  • Familiarity with messaging queues and microservice communication (e.g., gRPC, RabbitMQ).
  • Understanding of DevOps and CI/CD tools.
  • Experience in Agile/Scrum environments.
  • Excellent communication and interpersonal skills.