Java Developer at Wissen Technology · Bengaluru (Bangalore) · 3 - 12 years · Profitable · Posted 3 Nov 2026

- Experience in Core Java, CXF, Spring.
- Experience in spring boot, microservices.
- Extensive experience in developing enterprise-scale n-tier applications for the financial domain. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client-facing applications.
- Good development experience with RDBMS, preferably Sybase database
- Good knowledge of multi-threading and high volume server side development
- Experience in sales and trading platforms in investment banking/capital markets
- Basic working knowledge of Unix/Linux
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.

About Wissen Technology
About
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.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
Similar jobs (10)
JOB DESCRIPTION:
Location: mumbai, bangalore, pune
Mode of Work : 3 days from Office
DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API
- Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
- Implement and integrate APIs using Spring Framework and Apache CXF.
- Build microservices-based architecture for scalable and distributed systems.
- Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
- Optimize performance through efficient multithreading, memory management, and algorithm design.
- Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
- Work with RDBMS (preferably Sybase) for backend data integration.
- Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
- Work in Unix/Linux environments for deployment and troubleshooting.
Required Skills & Experience:
- 3– 8 years of strong hands-on experience in Core Java, Spring boot, microservices, data structures.
- Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
- Proven experience with Spring, CXF, and REST/SOAP web services.
- Solid understanding of microservices architecture and distributed systems.
- Experience working with Sybase or other relational databases.
- Expertise in multithreading, concurrency, and high-throughput server-side development.
- Exposure to capital markets, sales & trading platforms, or similar financial services applications.
- Good working knowledge of Unix/Linux environments.
- Experience in solution architecture and design documentation is a strong plus.
- Strong problem-solving skills, analytical thinking, and a proactive attitude.
- Excellent communication and interpersonal skills to work effectively with global teams.
Preferred Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
- Previous experience in investment banking, capital markets, or financial technology domains.
For more details:
Website: www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
LinkedIn: Wissen Technology
JOB DESCRIPTION
Experience: 4 to 10 years
Location- Bangalore/ Mumbai
Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills:
- Exp. 4 to 10 years
- Experience in Core Java and Spring Boot.
- Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
- Good development experience with RDBMS.
- Good knowledge of multi-threading and high-performance server-side development.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills.
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
JOB DESCRIPTION
Experience: 3-10 years
Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills:
- Exp. 3-10 years
- Experience in Core Java and Spring Boot.
- Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
- Good development experience with RDBMS.
- Good knowledge of multi-threading and high-performance server-side development.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills.
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
JOB DESCRIPTION
Experience: 4+ years
Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills:
- Exp. 4+ years
- Experience in Core Java and Spring Boot.
- Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
- Good development experience with RDBMS.
- Good knowledge of multi-threading and high-performance server-side development.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills.
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
JOB DESCRIPTION
Experience: 4-9 years
Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills:
- Exp. 4-9 years
- Experience in Core Java and Spring Boot.
- Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
- Good development experience with RDBMS.
- Good knowledge of multi-threading and high-performance server-side development.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills.
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
JOB DESCRIPTION
Experience: 5+ years
Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills:
- Exp. 5+ years
- Experience in Core Java and Spring Boot.
- Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
- Good development experience with RDBMS.
- Good knowledge of multi-threading and high-performance server-side development.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills.
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
Experience
9–18 Years
Education
IIT / NIT graduates only
Interview Process
Candidates must be available for a Face-to-Face interview in Bangalore or Mumbai.
Key Responsibilities
- Design and develop scalable, high-performance Java applications.
- Lead a team of engineers and drive technical excellence.
- Architect enterprise-grade solutions and provide technical guidance.
- Collaborate with cross-functional teams to define, design, and deliver high-quality software.
- Review code, mentor team members, and ensure engineering best practices.
- Drive system design discussions and resolve complex technical challenges.
Required Skills
- Strong expertise in Core Java and Java ecosystem.
- Excellent problem-solving and analytical skills.
- Very strong coding ability with clean coding practices.
- Strong understanding of System Design and distributed systems.
- Hands-on experience in Java Architecture and designing scalable applications.
- Experience leading engineering teams and mentoring developers.
- Good understanding of software design principles, design patterns, and performance optimization.
- Strong communication and stakeholder management skills.
Preferred Skills
- Experience with Spring Boot, Microservices, REST APIs, and cloud technologies.
- Exposure to CI/CD, containerization, and modern DevOps practices is an advantage.
Must have
Experience in the Core Java development
Good understanding of Object Oriented Design, Design Patterns and data structure algorithms
Experience in Multi-threading, Hashmaps, Collection arrays
Experience in Java collections
Experience in developing applications using Spring Boot
Proficient in building Micro Services with Java 1.8 or higher, J2EE, Spring, Spring Boot.
Proficient with No SQL and Relational Databases
Hands on experience in Unit testing frameworks like Junit / Mockito OR TDD
Experience: 12–15 Years
Job Type: Full-time
Role: Java Lead / Technical Lead
Job Summary
We are looking for an experienced Java Lead with 12–15 years of hands-on software development experience to lead the design, development, and delivery of scalable enterprise applications. The ideal candidate should have strong expertise in Core Java, Spring Boot, Microservices, REST APIs, SQL, and cloud technologies, along with proven experience in technical leadership and mentoring development teams.
The candidate will work closely with architects, product managers, and engineering teams to translate business requirements into robust and scalable technical solutions.
Key Responsibilities
- Lead the design, development, and implementation of Java-based enterprise applications.
- Provide technical leadership and guidance to a team of Java developers.
- Design and develop scalable, secure, and high-performance microservices and RESTful APIs.
- Participate in architecture and technical design discussions and contribute to key technical decisions.
- Review code and ensure adherence to coding standards, design principles, and best practices.
- Troubleshoot complex technical issues and provide effective solutions.
- Work closely with product managers, business analysts, QA, DevOps, and other stakeholders.
- Mentor developers and conduct technical knowledge-sharing sessions.
- Identify opportunities for improving application performance, scalability, reliability, and maintainability.
- Ensure effective implementation of unit testing, integration testing, CI/CD, and automated deployment practices.
- Participate in production support, root-cause analysis, and resolution of critical issues.
- Stay updated with emerging technologies and recommend suitable solutions where applicable.
Required Skills
- 12–15 years of experience in Java/J2EE application development.
- Strong expertise in Core Java, OOP, Collections, Multithreading, Exception Handling, and Java 8+ features.
- Strong hands-on experience with Spring Framework and Spring Boot.
- Excellent experience in Microservices architecture and RESTful web services.
- Strong understanding of design patterns, SOLID principles, and software architecture.
- Good knowledge of SQL and relational databases such as PostgreSQL, MySQL, or Oracle.
- Experience with Hibernate/JPA.
- Strong understanding of data structures and algorithms.
- Experience with Git and Maven/Gradle.
- Good understanding of CI/CD pipelines and DevOps practices.
- Experience with Docker and Kubernetes is preferred.
- Exposure to cloud platforms such as AWS, Azure, or GCP.
- Experience with messaging technologies such as Kafka or RabbitMQ is an advantage.
- Strong debugging, problem-solving, and analytical skills.
Leadership & Soft Skills
- Proven experience in leading or mentoring technical teams.
- Strong communication and stakeholder-management skills.
- Ability to drive technical discussions and make sound engineering decisions.
- Ability to work effectively in a collaborative, agile environment.
- Strong ownership and accountability for technical deliverables.
- Ability to balance hands-on development with technical leadership responsibilities.
Education
Bachelor’s or Master’s degree in Computer Science, Information Technology, Engineering, or a related field.
Preferred Qualifications
- Experience working on large-scale, distributed enterprise applications.
- Experience with cloud-native application development.
- Knowledge of event-driven architecture.
- Experience with system design and high-level/low-level design.
- Familiarity with Agile/Scrum methodologies.

Core Java Developer
Experience: 5+ Years
Employment Type: Full-time and Permanent
Location: Navi Mumbai or Gurugram
Job Description
We are looking for an experienced Core Java Developer with strong expertise in Java programming, backend development, and microservices architecture. The candidate should have hands-on experience in developing scalable applications, handling multithreading and concurrency, and working with Spring Boot.
Mandatory Skills:
- Strong hands-on experience in Core Java.
- Good knowledge of Spring Boot and Microservices architecture.
- Strong understanding of Multithreading and Concurrency.
- Experience with Java I/O and Networking.
- Understanding of JVM, Memory Management, Garbage Collection and performance tuning.
- Good knowledge of Linux/Unix environments.
- Strong understanding of object-oriented programming (OOPs) concepts.
- Experience in designing, developing, and troubleshooting backend applications.






