Java Developer

JOB DESCRIPTION

Experience: 5-8 years

Location: 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. - 5-8 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.

About Us:

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. 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 the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results. 

Today, Wissen Technology has a global footprint with 2000+ employees across offices in the US, UK, UAE, India, and Australia. 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.

Website : www.wissen.com 

Job Summary

We are seeking an experienced Java + Kafka Developer to design, develop, and maintain high-performance, event-driven applications. The ideal candidate will have strong backend development skills in Java and hands-on experience with Apache Kafka for building scalable, real-time data processing systems.

Key Responsibilities

• Design and develop event-driven microservices using Java and Apache Kafka
• Build and maintain Kafka producers, consumers, topics, and streams
• Implement message processing, retries, error handling, and idempotency
• Develop and integrate RESTful APIs
• Ensure high availability, scalability, and performance of Kafka-based systems
• Monitor, troubleshoot, and optimize Kafka and application performance
• Collaborate with architects, DevOps, and QA teams
• Participate in code reviews and follow best practices
• Contribute to system design and technical discussions

Required Skills

• 6+ years of experience in Java backend development
• Strong hands-on experience with Apache Kafka
• Experience with event-driven and streaming architectures
• Solid understanding of microservices architecture
• Experience with REST APIs
• Good knowledge of multithreading, concurrency, and JVM concepts
• Familiarity with SQL / NoSQL databases
• Strong problem-solving and debugging skills

Enterprise Minds, with core focus on engineering products, automation and intelligence, partners customers on the trajectory towards increasing outcomes, relevance and growth.

Harnessing the power of Data and the forces that define AI, Machine Learning and Data Science, we believe in institutionalizing go-to-market models and not just explore possibilities.

We believe in a customer-centric ethic without and people-centric paradigm within. With a strong sense of community, ownership, and collaboration our people work in a spirit of co-creation, co-innovation and co-development to engineer next-generation software products with the help of accelerators.

Through Communities we connect and attract talent that shares skills and expertise. Through Innovation Labs and global design studios we deliver creative solutions.
We create vertical isolated pods which has narrow but deep focus. We also create horizontal pods to collaborate and deliver sustainable outcomes.

We follow Agile methodologies to fail fast and deliver scalable and modular solutions. We constantly self-asses and realign to work with each customer in the most impactful manner.

Pre-requisites for the Role

1.Job ID-EMJR0120PS

1. Primary skill:

• Java-spring boot-Hibernate
• Mysql
• CI/CD, Jenkins/Github (good to have)
• Junit/Mockito/testng
• Rest api

(Good to have)

Awards received in career

4.Years of Experience: 3-5 Years

1. Location:(Hybrid)
2. Position-19
3. Budget- Max 14 LPA
4. NP- Immediate

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To succeed as a backend developer, you should be focused on building a better, more efficient program and creating a better end-user experience. You should be knowledgeable, collaborative, and motivated.

Back-end Developer Responsibilities:

• Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement.
• Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
• Developing ideas for new programs, products, or features by monitoring industry developments and trends.
• Recording data and reporting it to proper parties, such as clients or leadership.
  Participating in continuing education and training to remain current on best
• practices, learn new programming languages, and better assist other team members.
• Taking lead on projects, as needed.
• Develop web applications and web services using Java Spring Boot, Spring Cloud Frameworks, AWS
  
  Back-end Developer Requirements:
  
  
• Bachelor’s degree in computer programming, computer science, or a related field.
• Fluency or understanding of specific languages, such as Java, Nodejs,React,JSON,PHP, or Python, and operating systems may be required.
• Strong understanding of the web development cycle and programming techniques and tools.
• Focus on efficiency, user experience, and process improvement.

• Work with the architect in identifying modules, interfaces, functionality to be developed
• Participate in the entire application lifecycle, focusing on coding and debugging
• Write clean code to develop functional web application, addressing technical and design requirements
• Understand and implement heuristic algorithms as necessary
• Troubleshoot and debug applications
• Create and maintain upto date documentation 
• Collaborate with Front-end developers to integrate user-facing elements with server side logic
• Provide training and support to internal teams
• Build reusable code and libraries for future use
• Liaise with developers, architects,  designers and system administrators to identify and incorporate new features

• Proven work experience in Java as a Back-end developer
• In-depth understanding of the entire web development process (design, development and deployment)
• Hands on experience with programming languages like https://resources.workable.com/back-end-developer-job-description" target="_blank">Java and Python
• Hands on experience in relational and non relational databases
• Working knowledge of CMS framework
• Familiarity with front-end languages (e.g. HTML, JavaScript and CSS)
• Excellent analytical and time management skills
• Teamwork skills with a problem-solving attitude
• BE/ MS degree in Computer Science or relevant field