Java Developer

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

PayPal is Hiring !!

Designation: Java back-end developer

Experience:3-7yrs

Location: Chennai, Tamilnadu (Work from OFFICE)

Job description :

Must have skills

3 to 5 years

Java, Spring Boot, Hibernate, REST API

Design Patterns

SQL, Oracle, Table design

Responsibilities:

• Responsible for design and development of high end, robust, scalable products that disrupt the market
• Technically-intense role with primary focus on building cool products in a niche domain 
• Evolution into Principal Software Engineers and Team leads and beyond based on one’s ability to demonstrate very strong technical expertise and project & people management skills.
• Reviewing code work for accuracy and functionality
• Analyzing code segments regularly.

Requirements:      

      Experience Range: 3+

      Role: Software Engineer – final role will depend on candidate’s experience and credentials

      Education: BE/B. Tech/MCA/M.Sc./MTech

      Technology Stack: Java, Hibernate, spring, spring boot, Microservices, MySQL, reactJS, Elastic Search, AWS Infra

Requirements & Responsibilities:

- 3+ years of experience developing web applications using J2EE.

- 3+ years of experience in Spring Boot.

- Understanding of MicroServices.

- Experience working with tools like Git, Maven, and AWS.

- Expertise in developing RESTful APIs.

- Experience writing Unit and Integration tests.

- Background working with Linux/UNIX environments.

- Strong working knowledge with RDBMS like MySql, Postgres and NoSQL databases like Mongo

- Passion to stay on top of the latest happenings in the tech world and an attitude to discuss and bring those into play.

- Experience with agile/scrum development

- Strong collaboration and communication skills 

- Excellent written and verbal communication skills

Education: Bachelor’s degree in Computer Science, Electrical/Electronic Engineering, Information Technology or another related field or Equivalent

• JAVA Microservices with AWS needed
• Provide solution architecture & design involving Cloud and DevOps
• Develop new microservices in a cloud-native way.
• Ensure the unit testing and code coverage are achieved as per the agreed percentage.
• Build reusable code and libraries for future use.
• Optimize application for maximum performance and scalability.
• Collaborate, and coordinate with team members and key stakeholders.
• Communicate effectively with different stakeholders.
• Ensure best practices & standards are followed during SDLC.
• Takes ownership of the whole solution from a technical perspective and ensures adherence to defined Architecture & Design.
• Ensures the latest technology standards, and guidelines are utilized for development.
• Performs consistent & adequate code reviews & feedback to the team.
• Training and induction of new resources on the projects.

Skills and Qualifications

• Deep understanding of OOPs and OOAD.
• Expert and hands-on in Java JEE and Spring framework, Spring Boot.
• Should have experience with RESTful web services and API standards.
• Should know various integration patterns in distributed environments.
• Working knowledge of microservice architecture and different design patterns.
• Hands-on in writing unit tests with Mockito and code coverage tools.
• Hands-on data modeling (Logical physical).
• Knowledge of RDBMS, SQL and any ORM framework (JPA, Hibernate etc.)
• Should know Event-driven and asynchronous programming using message broker.
• Should know about cloud IaaS, PaaS, SaaS and Serverless models of any cloud provider (AWS, Azure, GCP), preferably AWS.
• Knowledge of JavaScript frameworks like NodeJS (For the Backend) and Angular React (For Frontend) will be added advantage.
• Good to have DevOps related technologies like Container (Docker), Container Orchestrator (Kubernetes EKS)
• Excellent in communication

• 3+ years of SDE work experience from Product based companies
• Experience in Java, Spring Boot, MySQL, Kafka, Hbase, AWS
  • Experience in Multi threading, distributed systems, Best practices of coding, scaling

• Primary skills:Java,Java-Java 8,Java-Microservices,Java-Springboot