Elfonze Technologies Pvt Ltd

Java Full Stack Lead / Architect

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Bengaluru North, Yelahanka, Bengaluru Urban, Karnataka, IND

In-Office

Entry level

Cloud • Information Technology • Software • Consulting

The Role

Design, develop, and maintain scalable Java applications using Core Java, JSP, and Servlets. Optimize SQL queries and Oracle database performance, apply software design patterns, troubleshoot existing systems, and collaborate with cross-functional teams. Responsibilities also include unit testing, code reviews, feature delivery, and potential integration with REST APIs and frontend frameworks.

Summary Generated by Built In

Java Developer
Job Summary

We are looking for a highly skilled Java Developer with strong expertise in Core Java, JSP/Servlets, and design patterns. The ideal candidate should have solid hands-on experience with Oracle databases, SQL optimization, and JavaScript, along with the ability to build scalable and high-performance applications.

Key Responsibilities

Design, develop, and maintain robust applications using Core Java.
Build and manage web applications using JSP and Servlets.
Apply design patterns and best practices to ensure scalable and maintainable code.
Write and optimize complex SQL queries for high performance.
Work extensively with Oracle databases for data storage and retrieval.
Collaborate with cross-functional teams to define, design, and deliver features.
Troubleshoot, debug, and enhance existing applications.
Ensure code quality through unit testing and code reviews.

Required Skills

Strong expertise in Core Java concepts (OOP, Collections, Multithreading, Exception Handling).
Hands-on experience with JSP and Servlets.
Solid understanding of design patterns (Singleton, Factory, MVC, etc.).
Strong knowledge of SQL including:
- Query optimization
- Writing complex joins, subqueries, stored procedures
Experience working with Oracle Database.
Proficiency in JavaScript.
Strong understanding of database design and performance tuning.

Preferred Qualifications

Experience with web/application servers (e.g., Tomcat, WebLogic).
Familiarity with frontend frameworks is a plus.
Exposure to REST APIs and integration services.
Knowledge of version control tools like Git.

Skills Required

Strong expertise in Core Java, including object-oriented programming, collections, multithreading, and exception handling
Hands-on experience with JSP and Servlets
Understanding of software design patterns, including Singleton, Factory, and MVC
Strong SQL skills, including query optimization, complex joins, subqueries, and stored procedures
Experience with Oracle Database
Proficiency with JavaScript
Understanding of database design and performance tuning
Experience with web or application servers such as Tomcat or WebLogic
Familiarity with frontend frameworks
Exposure to REST APIs and integration services
Knowledge of version control tools such as Git

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The Company

286 Employees

Year Founded: 2021

What We Do

Elfonze Technologies is a Bengaluru-based technology and engineering services company that helps organizations modernize enterprise operations. Its offerings include Oracle ERP and enterprise applications, cloud and DevOps services, digital transformation, product engineering, connected supply-chain solutions, AI platforms, cybersecurity, staff augmentation, and managed solutions. The company serves global clients through IT consulting, technology delivery, and specialized supply-chain expertise, emphasizing innovation, operational excellence, and business-process improvement.