Senior Java Developer

About Wissen Technology

Wissen Technology specializes in delivering custom-tailored products that address complex industrial challenges worldwide. Established in 2015, the company embraces a strong product engineering philosophy, ensuring every solution is meticulously designed and implemented correctly from the outset. With over 2000 employees spread across their global offices in the US, UK, UAE, India, and Australia, Wissen Technology stands out by offering double the impact compared to traditional service providers. This is achieved through deep sector knowledge, advanced technological expertise, and an unwavering commitment to quality, resulting in faster delivery, minimized rework, and close alignment with client goals.

Wissen has a proven track record building critical systems in industries such as financial services, healthcare, retail, and manufacturing. Their delivery approach includes outcome-based projects guaranteeing predictable costs and timelines, and agile pods that offer flexibility to meet evolving client requirements. Powered by top talent, Wissen aims to be the preferred partner for creating world-class custom products with exceptional impact at first delivery.

Job Summary

We are seeking a Senior Java Developer with 8 to 12 years of hands-on experience in Java technologies including Spring, Spring Boot, Hibernate, and proficient SQL expertise. The candidate will be responsible for designing, implementing, and optimizing enterprise applications, focusing heavily on database query performance and application tuning.

Key Responsibilities

• Develop and maintain enterprise-level applications adopting Java, Spring Framework, Spring Boot, and Hibernate ORM.
• Create and integrate RESTful APIs and microservices architectures.
• Design, optimize, and troubleshoot complex SQL queries and database artifacts.
• Analyze and enhance both application and database performance through query optimization techniques, effective indexing, and performance tuning.
• Engage in code reviews, architectural design sessions, debugging processes, and provide production support.
• Work collaboratively within cross-functional Agile teams to deliver high-quality solutions.

Required Skills and Experience

• 8–12 years of experience in Java application development.
• Expertise in Java programming along with Spring, Spring Boot, and Hibernate/JPA technologies.
• Strong command of SQL and hands-on experience with relational database systems such as Oracle, SQL Server, PostgreSQL, or MySQL.
• Proven ability to optimize SQL queries, understand execution plans, implement indexing strategies, and tune database performance.
• Familiarity with RESTful APIs, microservices architecture, Maven or Gradle build tools, Git version control, and JUnit testing framework.
• Experience working in Agile development environments and knowledge of CI/CD pipelines.

Additional Information

Location: Bangalore, Karnataka, India

Employment Type: Full Time, Onsite

Education: B.Tech or M.Tech in Computer Science or related field