
We are looking for an experienced Java Developer with strong proficiency in Kafka and MongoDB to join our dynamic team. The ideal candidate will have a solid background in designing and developing high-performance, scalable, and reliable applications in a microservices architecture. You will be responsible for building real-time data processing systems, integrating various services, and ensuring smooth data flow across systems.
Key Responsibilities:
- Design, develop, and maintain scalable Java applications with a focus on performance and reliability.
- Build and maintain Kafka-based real-time data pipelines for handling high-volume, low-latency data.
- Work with MongoDB to design and optimize database schemas and queries for high throughput and availability.
- Collaborate with cross-functional teams to define, design, and implement new features and improvements.
- Troubleshoot and resolve issues related to system performance, scalability, and reliability.
- Ensure software quality through best practices, including testing, code reviews, and continuous integration.
- Implement and maintain security best practices in both code and data handling.
- Participate in agile development cycles, including sprint planning, daily standups, and retrospectives.
Required Skills & Qualifications:
- 7+ years of experience in Java development, with a strong understanding of core Java concepts (J2EE, multithreading, etc.).
- Hands-on experience with Apache Kafka, including setting up brokers, producers, consumers, and understanding Kafka Streams.
- Proficient in working with MongoDB for designing efficient data models, indexing, and optimizing queries.
- Experience with microservices architecture and RESTful APIs.
- Familiarity with containerization technologies like Docker and orchestration tools like Kubernetes is a plus.
- Strong understanding of distributed systems, message-driven architectures, and event streaming.
- Familiarity with version control systems like Git.
- Excellent problem-solving skills, with the ability to debug and optimize code for high-performance systems.
- Experience with CI/CD pipelines and automated testing.

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
We prefer candidates who can attend a walk-in interview and join immediately.
Job Description: Senior Java Developer with Leadership Experience
Position: Lead Developer
Experience: 5-8 Years
Location: Noida
Job Type: Full-time
Overview:
We are seeking a highly skilled and experienced Senior Java Developer to join our dynamic team. The ideal candidate will have a minimum of 5 years of experience in Java development, with a strong focus on leadership and team management. This role requires a proactive individual who can guide others, provide instant solutions, and ensure the successful completion of technical projects.
Key Responsibilities:
- Team Leadership: Lead, mentor, and manage a team of Java developers, fostering a collaborative and productive work environment.
- Project Management: Oversee the planning, execution, and delivery of projects, ensuring they are completed on time and within budget.
- Technical Guidance: Provide expert guidance on Java, JSP, Servlets, Spring Boot, and Hibernate, ensuring best practices and high-quality code standards.
- Problem Solving: Quickly identify, analyze, and resolve technical issues, providing instant and effective solutions.
- Code Review: Conduct regular code reviews to maintain code quality, performance, and security.
- Server Management: Manage server configurations, deployments, and troubleshooting to ensure optimal performance and uptime.
- Collaboration: Work closely with cross-functional teams, including QA, DevOps, and Product Management, to align development activities with business goals.
- Continuous Improvement: Stay updated with the latest industry trends and technologies, and continuously improve development processes and practices.
- Documentation: Ensure comprehensive documentation of all technical specifications, project plans, and procedures.
Qualifications:
- Education: Bachelor’s degree in Computer Science (tier 1/2), Information Technology, or a related field.
- Experience: Minimum of 5 years of hands-on experience in Java development, Minimum 1 year experience in leading Team
Technical Skills:
- Proficiency in Java, JSP, Servlets, Spring Boot, and Hibernate.
- Strong understanding of server-side technologies and server management.
- Experience with version control systems like Git.
- Familiarity with database management systems, particularly SQL.
- Fluency in English
- Leadership Skills: Proven experience in leading and managing development teams.
- Problem-Solving Skills: Strong analytical and problem-solving abilities.
- Communication Skills: Excellent verbal and written communication skills, with the ability to convey complex technical concepts to non-technical stakeholders.
Benefits:
● Provident Fund
Schedule:
● Day shift
● Fixed shift
● Monday to Friday
● Morning shift
Job ID : LK0601
Java Developer JD;
- 2-7 years of Experience
- Java 8
- Spring boot
- API development
- MVC architecture
- web services
- OOPS
Responsibilities
- Ideate, execute & take ownership of complete project from scratch
- Create and design User-focused focused SAAS with high end experience
- Optimize existing architecture for performance, scalability & functionality
- Generate modular & clean codes
- Deploy & maintain project’s infrastructure with zero downtime
Skill Sets
- Sharp communication skills
- Fluent in Problem Solving, Data Structures And Algorithms
- Strong in Java Spring Boot & Python Django languages & frameworks
- Experience with database design & familiar with RDBMS database like Postgresql as well as no SQL databases
- Good with writing unit test cases & integration test cases
- Well versed in writing Asynchronous codes or technologies
- Exposed to various AWS technologies like EC2, Cognito, API Gateway,ECS etc.
- Exposed to Pub-sub technologies like SQS,Kafka, RabbitMQ, etc.
- Familiar with caching tools like Redis, HazleCaste, etc.
- Exposure to DevOps and Big Data is a plus.
We are looking for a motivated and talented individual with extensive experience in developing software. You will take an experienced and influential role in contributing to designing, developing and delivering various applications and features to meet performance, scalability and feature requirements in support of the management of unmanned retailing kiosks.
If you want your software to have a long-lasting impact on the business software space, you should consider joining our expanding and exciting organization.
Requirements:
- J2EE - Sprint Boot Microservices
- 2+ years of experience in Java, Spring and Spring boot development (J2EE, J2SE 8)
- Degree, diploma or Certificate in Computer Science or IT.
- Extensive experience with Spring, Spring Boot Micro Services, JPA, Hibernate
- Understanding of Spring Boot 2.x , Microservices and higher with the ability to create an initial project with the correct starter modules.
- Extensive experience in REST and SOAP Webservices Services • Excellent knowledge of databases( PostgreSQL, My SQL)
- Experience in testing tools (JUnit, SOAP UI, Postman)
- Experience in building tools – Maven, Gradle
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience in web application servers - Tomcat etc
- Understanding of Agile Development methodology – SCRUM
- Understanding of continuous integration - Jenkins and Code versioning tools - Git
1. Be hands-on and ship good quality code Fast
2. Understand business and product requirements and brainstorm the technology solutions
3. Take responsibility for the individual modules development, maintenance, deployment
4. Understand existing code, maintain and improve it.
Qualifications -
1. 1+ years of Hands on experience in Core Java,Spring Boot, Spring MVC, Hibernate, Play etc
2. Hands on experience in SQL and NoSQL databases like Postgres, MongoDB, ElasticSearch, Redis
3. Knowledge of software development models like RAD and Agile
4. Quick Learner
Node.js Developer Responsibilities:
- Developing and maintaining all server-side network components.
- Ensuring optimal performance of the central database and responsiveness to front-end requests.
- Collaborating with front-end developers on the integration of elements.
- Designing back-end services for various business processes.
- Developing high-performance applications by writing testable, reusable, and efficient code.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Running diagnostic tests, repairing defects, and providing technical support.
- Documenting Node.js processes, including database schemas, as well as preparing reports.
- Recommending and implementing improvements to processes and technologies.
- Keeping informed of advancements in the field of Node.js development.
Node.js Developer Requirements:
- Bachelor's degree in computer science, information science, or similar.
- At least two years of experience as a Node.js developer.
- Extensive knowledge of JavaScript, web stacks, libraries, and frameworks.
- Knowledge of front-end technologies such as HTML5 and CSS3.
- Superb interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude.
- Great organizational and time management skills.
- Availability to resolve urgent web application issues outside of business hours
- Should know CI/CD process
Job Description for NodeJS/Backend Developer (2 - 4 years experience ) :
Responsibilities:
1. Writing reusable, efficient code.
2. Implementation of security and data protection.
3. Development and design of high performant APIs and implementing server side logic.
4. User authentication, DB Schema design etc.
Skills and Qualifications:
1. Javascript
2. Typescript
3. Object oriented programming
4. Express and Mongo DB.
5. AWS and basic devOps
Other Tools:
1. Git and other development tools.










