Java Developer

JOB DESCRIPTION

Experience: 3-8 years

Wissen Technology is now hiring for a Java Developer - Mumbai 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. - 3-8 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.

JOB DESCRIPTION

Experience: 4-8 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. - 4-8 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.

Job Summary

We are seeking an experienced Java Drools Developer to design, develop, and maintain rule-based applications using Drools. The ideal candidate will have strong backend development skills and hands-on experience with business rule management systems in enterprise environments.

Key Responsibilities

• Design, develop, and maintain business rules using Drools (BRMS)
• Create and manage Drools Rule Files (DRL), decision tables, and rule flows
• Integrate Drools with Java / Spring Boot applications
• Optimize rule execution, performance, and scalability
• Develop and consume RESTful APIs
• Collaborate with business analysts to translate requirements into rules
• Participate in code reviews and ensure best practices
• Support testing, debugging, and production issues

Required Skills

• Strong hands-on experience in Java
• Solid experience with Drools Rule Engine / BRMS
• Experience with Spring / Spring Boot and microservices architecture
• Knowledge of REST APIs and backend integrations
• Understanding of rule lifecycle management and versioning
• Good problem-solving and analytical skills

Job Summary:

We are seeking a highly skilled and self-driven Java Backend Developer with strong experience in designing and deploying scalable microservices using Spring Boot and Azure Cloud. The ideal candidate will have hands-on expertise in modern Java development, containerization, messaging systems like Kafka, and knowledge of CI/CD and DevOps practices.Key Responsibilities:

• Design, develop, and deploy microservices using Spring Boot on Azure cloud platforms.
• Implement and maintain RESTful APIs, ensuring high performance and scalability.
• Work with Java 11+ features including Streams, Functional Programming, and Collections framework.
• Develop and manage Docker containers, enabling efficient development and deployment pipelines.
• Integrate messaging services like Apache Kafka into microservice architectures.
• Design and maintain data models using PostgreSQL or other SQL databases.
• Implement unit testing using JUnit and mocking frameworks to ensure code quality.
• Develop and execute API automation tests using Cucumber or similar tools.
• Collaborate with QA, DevOps, and other teams for seamless CI/CD integration and deployment pipelines.
• Work with Kubernetes for orchestrating containerized services.
• Utilize Couchbase or similar NoSQL technologies when necessary.
• Participate in code reviews, design discussions, and contribute to best practices and standards.

Required Skills & Qualifications:

• Strong experience in Java (11 or above) and Spring Boot framework.
• Solid understanding of microservices architecture and deployment on Azure.
• Hands-on experience with Docker, and exposure to Kubernetes.
• Proficiency in Kafka, with real-world project experience.
• Working knowledge of PostgreSQL (or any SQL DB) and data modeling principles.
• Experience in writing unit tests using JUnit and mocking tools.
• Experience with Cucumber or similar frameworks for API automation testing.
• Exposure to CI/CD tools, DevOps processes, and Git-based workflows.

Nice to Have:

• Azure certifications (e.g., Azure Developer Associate)
• Familiarity with Couchbase or other NoSQL databases.
• Familiarity with other cloud providers (AWS, GCP)
• Knowledge of observability tools (Prometheus, Grafana, ELK)

Soft Skills:

• Strong problem-solving and analytical skills.
• Excellent verbal and written communication.
• Ability to work in an agile environment and contribute to continuous improvement.

Why Join Us:

• Work on cutting-edge microservice architectures
• Strong learning and development culture
• Opportunity to innovate and influence technical decisions
• Collaborative and inclusive work environment

Job Responsibilities:

* Design, build, and maintain efficient, reusable, and reliable Java code

* Ensure the best possible performance, quality, and responsiveness of the applications

* Identify bottlenecks and bugs, and devise solutions to these problems

* Help maintain code quality, organization, and automatization

* Prepare the technical design of complex technology components

Mandatory Skills:

* Proficient in Java (JDK 1.7) or above JDK 8 preferable, with a good knowledge of its ecosystems with a knack for writing clean, readable Java code, writing reusable Java libraries along with knowledge of concurrency patterns in Java

* Solid understanding of object-oriented programming along with various design and architectural patterns

* Hands on experience with Spring, Spring Boot, JUnit

* Familiarity with concepts of MVC, Microservices, RESTful

Key Responsibilities :

1. Work closely with client and team and understanding the requirement, design, analyze and do the code changes

2.Helping team and client to resolve issues

3.Should able to handle day to day activity like team management, daily meeting

Technical Experience :

- Net development work experience

- Proficiency in NET Development with Net Core.

- Strong object-oriented programming OOPS design skills, SOLID principles and proficiency in software design patterns

- Experience in database MS SQL Server, No SQL

- Solid understanding of Microservices

- Good understanding Azure, Docker and Kubernetes

- Experience with version control systems GitHub and Bitbucket

Professional Attributes :

1.Should have good communication Skills

2.Should be good team player

3.Should be able to work independently and under pressure

4.Should have good logical and analytical thinking

• The Architect/ Lead Backend Engineer will handle the digital experience from inception to go-live model.
• The role holder is expected to create a vision and roadmap for the digital experience to provide best in class customer experience for each of the product solutions handled.  The role holder will play a critical role in leading the innovation and growth of our front end web and mobile platforms.
• Must be from Good Companies and have been working on high Scale of Traffic
• Proficiency in engineering practices and writing high quality code, with expertise in either one of Java or Groovy or Go.
• 3+ years of experience building microservices.
• Strong experience in architecting and building distributed systems, scalability, and availability
• Strong knowledge of data structures, algorithms, and designing for performance
• Strong knowledge of cloud technologies like AWS/Google Cloud/Azure
• Good understanding of RxJava or Actors framework
• Proficient with RDBMS
• Strong knowledge on data stores, database design, data modelling and SQL queries
• Extensive experience building and owning large- scale distributed backend systems
• Experience working with three or more of : Unix/Linux environments, Distributed and parallel systems, Workflow automation, CI/CD Platform development, Cloud platforms development e.g. AWS/GCP, Kubernetes/Container platforms based development