Senior Java Developer

Wissen Technology is hiring for Senior Java Developer

About Wissen Technology:

At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide. Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Today, Wissen Technology has a global footprint with 2000+ employees across offices in the US, UK, UAE, India, and Australia. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality. We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more. Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients with the flexibility to adapt to their evolving business needs. Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

Job Summary:

We are looking for a Senior Java Developer with strong expertise in Java, Spring, Spring Boot, Hibernate, and SQL. The ideal candidate should have experience in designing, developing, and optimizing enterprise applications, with a focus on database query optimization and application performance tuning.

Experience: 8 - 12 Years Location: Bangalore Mode of Work: Full Time Education: B.Tech/M.Tech in Computer Science or related field

Key Responsibilities:

• Design, develop, and maintain enterprise applications using Java, Spring, Spring Boot, and Hibernate.

• Develop and consume RESTful APIs and microservices.

• Write, optimize, and troubleshoot complex SQL queries and database objects.

• Analyze and improve application and database performance through query optimization, indexing, and performance tuning.

• Participate in code reviews, technical design, debugging, and production support.

• Collaborate with cross-functional teams in an Agile environment.

Required Skills

• 8–12 years of experience in Java application development.

• Strong hands-on experience with Java, Spring, Spring Boot, and Hibernate/JPA.

• Proficiency in SQL and relational databases (Oracle, SQL Server, PostgreSQL, or MySQL).

• Experience in SQL query optimization, indexing, execution plan analysis, and database performance tuning.

• Knowledge of REST APIs, Microservices, Maven/Gradle, Git, and JUnit.

• Familiarity with CI/CD tools and Agile methodologies.

Wissen Sites:

• Website: www.wissen.com

• LinkedIn: https://www.linkedin.com/company/wissen-technology

• Wissen Leadership: https://www.wissen.com/company/leadership-team/

• Wissen Live: https://www.linkedin.com/company/wissen-technology/posts/feedView=All

• Wissen Thought Leadership: https://www.wissen.com/articles/