
Hiring Java Architects/ Tech Leads with expertise in Microservices, and Spring Framework. Experience of 8-10 yrs.
Notice Period - immediate to 45 days joiners only
Location - Bangalore and Chennai

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Company Name – Wissen Technology
Group of companies in India – Wissen Technology & Wissen Infotech
Work Location - Senior Backend Developer – Java (with Python Exposure)- Mumbai
Experience - 4 to 10 years
Kindly revert over mail if you are interested.
Java Developer – Job Description
We are seeking a Senior Backend Developer with strong expertise in Java (Spring Boot) and working knowledge of Python. In this role, Java will be your primary development language, with Python used for scripting, automation, or selected service modules. You’ll be part of a collaborative backend team building scalable and high-performance systems.
Key Responsibilities
- Design and develop robust backend services and APIs primarily using Java (Spring Boot)
- Contribute to Python-based components where needed for automation, scripting, or lightweight services
- Build, integrate, and optimize RESTful APIs and microservices
- Work with relational and NoSQL databases
- Write unit and integration tests (JUnit, PyTest)
- Collaborate closely with DevOps, QA, and product teams
- Participate in architecture reviews and design discussions
- Help maintain code quality, organization, and automation
Required Skills & Qualifications
- 4 to 10 years of hands-on Java development experience
- Strong experience with Spring Boot, JPA/Hibernate, and REST APIs
- At least 1–2 years of hands-on experience with Python (e.g., for scripting, automation, or small services)
- Familiarity with Python frameworks like Flask or FastAPI is a plus
- Experience with SQL/NoSQL databases (e.g., PostgreSQL, MongoDB)
- Good understanding of OOP, design patterns, and software engineering best practices
- Familiarity with Docker, Git, and CI/CD pipelines

Signalling, interlocking system
• Participate in Requirement Analysis and Design activities
• Develop code, unit testing, integration testing
• Perform module integration and integration testing
• Prepare and review Test Reports
• Actively participate in technical meetings and share ideas clearly
• Manage a team of engineers and provide leadership with clear communication
• Good at documentation
• And any other project related activity assigned
Job Description
- Design & implement backend APIs
- Mentor junior developers technically.
- Actively work to reduce tech debt in the backend
- Work towards more stability & scalability of the backend
- Tech stack - Java, AWS etc.
Eligibility
- 2-8 years of product company experience
- Advanced understanding of AWS stack
- Prior knowledge of solving problems at scale.
Writing well-designed, efficient, and testable code.
Delivering high availability and performance.
Contributing in all phases of the development lifecycle.
Upgrade existing Java (1.6) application running on Apache Tomcat to new Java (1.8) version and new Apache Tomcat version |
Make necessary code changes for porting application to new Java versions and Tomcat versions |
Set up new application environments for Dev, SIT and Production |
Perform unit testing and support user testing. |
Deploy new upgraded application in production |
Provide post implementation support. |
Analyze and resolve defects coming out of testing and post production deployment. |
Modify existing application code to use Sql Server as backend. |
Develop Java code as needed. |
Experience-3-5 yrs
Location- bangalore,pune,ggn,
Skills: Core java,j2EE,oops,Spring,Microservices

Requirements
- 2-5 years of experience as a back-end developer
- Expertise with Java 1.8 and React JS
- Understanding of OOPS concepts, Design Principles, and implementations of different types of Design Patterns.
- Should have a strong acumen in Data Structures, Algorithms, problem-solving.
- Experience in Microservices
- Extensive experience in developing Web Services APIs using RESTful API design
- Comfortable writing Unit Test Cases
- Good to have experience/knowledge of
- Docker,
- Scala,
- Python, and
- AWS and other Cloud platforms
- Able to connect the dots between code and business value
Responsibilities
- Engage in high-level conversations about business strategy and the role tech plays in it
- Write well-designed, testable, and efficient code that powers our application
- Write specs and do planning for everything we build
- Conduct application analysis, testing, and debugging
- Diligently document code to keep it clean and transparent
- Ensure cross-browser and device compatibility
You Are
- You believe it’s always on you to make sure anything you do is a success.
- You have the ability to make quick and effective decisions.
- In love with a challenge. You revel in solving problems and want a job that pushes you out of your comfort zone.
- Open to change. You’re inspired by the endless ways in which everything we do can always be improved.


