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Wissen Technology is Hiring for Java +React
About Wissen Technology:
Wissen Technology is a globally recognized organization known for building solid technology teams, working with major financial institutions, and delivering high-quality solutions in IT services. With a strong presence in the financial industry, we provide cutting-edge solutions to address complex business challenges.
Role Overview:
We are looking for a highly skilled Senior Java Developer with a strong background in Core Java, multithreading, collections, and React.js to join our technology team supporting the BFSI sector. The ideal candidate will possess deep technical expertise in backend development with strong proficiency in object-oriented programming, database optimization, and modern UI frameworks.
Key Responsibilities:
Design, develop, and maintain high-performance Java applications used in banking and financial services.
Develop responsive web applications using React.js.
Apply in-depth knowledge of Java collections, concurrency, and multithreading, including executor services and fork/join frameworks.
Optimize JVM performance and memory usage in enterprise-scale systems.
Write clean, maintainable, and efficient code following industry best practices.
Work with relational databases (Sybase, Oracle, SQL Server) and apply advanced concepts like indexing, replication, triggers, and stored procedures.
Collaborate with cross-functional teams (QA, DevOps, Business Analysts) to understand requirements and deliver robust solutions.
Participate in code reviews, unit testing, and mentoring junior developers.
Troubleshoot and resolve complex application issues in production environments.
Required Skills & Qualifications:
5+ years of hands-on development experience with Core Java.
Strong understanding and practical experience with:
Collections Framework
Concurrent Programming
Multi-threading (Executor service, Fork/Join Pool, etc.)
Experience in building modern web interfaces using React.js.
In-depth knowledge of the JVM, with experience in performance tuning and memory management.
Solid understanding of Object-Oriented Design and Data Structures.
Expertise in relational database systems (Sybase, Oracle, or SQL Server) with advanced SQL and performance tuning knowledge.
Strong knowledge of database features like CLOB/BLOB, materialized views, replication, and triggers.
Excellent written and verbal communication skills.
BFSI domain experience is a strong advantage.
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains. We help clients build world class products.
We offer an array of services including Core Business Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud Adoption, Mobility, Digital Adoption, Agile & DevOps, Quality Assurance & Test Automation.
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