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

Responsibilities:

● Design, develop, test, and maintain software applications using Java technologies.

● Implement robust solutions using Spring MVC, Spring Boot, and Hibernate frameworks.

● Develop and optimize database operations with MySQL.

● Analyze and solve complex problems by applying knowledge of data structures and algorithms

Requirement -

Programming Languages & Technologies: Strong knowledge of Java (Core Java, Java 8+).

● Frameworks: Proficiency in Spring MVC, Spring Boot, and Hibernate. ● Algorithms and Data Structures: Good understanding and practical application of DSA concepts.

● Databases: Experience with MySQL – writing queries, stored procedures, and performance tuning.

● Version Control Systems: Experience with tools like Gi

Requirements: Job Description

• Excellent knowledge in Core Java (J2SE) and J2EE technologies.
• Hands-on experience with RESTful services, API design are must.
• Knowledge of microservices architecture is must.
• Knowledge of design patterns is must.
• Strong knowledge in Exception handling and logging mechanism is must.
• Agile scrum participation experience. Work experience with several agile teams on an application built with microservices and event-based architectures to be deployed on hybrid (on-prem/cloud) environments.
• Good knowledge of Spring framework (MVC, Cloud, Data and Security. Etc) and ORM framework like JPA/Hibernate.
• Experience in managing the Source Code Base through Version Control tool like SVN, GitHub,Bitbucket, etc.
• Experience in using and configuration of Continuous Integration tools Jenkins, Travis, GitLab, etc.
• Experience in design and development of SaaS/PaaS based architecture and tenancy models.
• Experience in SaaS/PaaS based application development used by a high volume of subscribers/customers.
• Awareness and understanding of data security and privacy. Experience in performing Java Code Review using review tools like SonarQube, etc.
• Good understanding of end-to-end software development lifecycle. Ability to read and understand requirements and design documents.
• Good Analytical skills and should be self-driven.
• Good communication with inter-personal skills. Open for learning new technologies and domain.
• A good team player and ready to take up new challenges. Active communication and coordination with Clients and Internal stake holder

Requirements: Skills and Qualifications

• 6-8 years of experience in developing Java/J2EE based Enterprise Web Applications
• Languages: Java, J2EE, and Python
• Databases: MySQL, Oracle, SQL Server, PostgreSQL, Redshift, MongoDB
• DB Script: SQL and PL/SQL
• Frameworks: Spring, Spring Boot, Jersey, Hibernate and JPA
• OS: Windows, Linux/Unix.
• Cloud Services: AWS and Azure
• Version Controls/ Devops tools: Git, Bitbucket and Jenkins.
• Message brokers: RabbitMQ, and Kafka
• Deployment Servers: Tomcat, Docker, and Kubernetes
• Build Tools: Gradle/Maven

We are seeking a skilled and experienced Senior Backend Engineer proficient in Java to join our dynamic team. The ideal candidate will have 4-7 years of hands-on experience in Java development, particularly in building robust backend systems and microservices architecture. As a Senior Backend Engineer, you will collaborate with cross-functional teams to design, develop, and deploy scalable and efficient backend solutions to support our products and services.

Responsibilities:

1. Design, develop, and maintain high-performance backend systems and microservices using Java.
2. Collaborate with product managers, frontend engineers, and other stakeholders to understand requirements and translate them into technical specifications.
3. Implement best practices in software development, including code reviews, testing, and documentation.
4. Optimize and refactor existing codebase for improved performance, scalability, and maintainability.
5. Troubleshoot and debug issues in production environments and provide timely resolutions.
6. Stay updated with industry trends and emerging technologies to propose innovative solutions and improvements.
7. Mentor junior engineers and contribute to their professional growth and development.
8. Participate in agile ceremonies such as sprint planning, stand-ups, and retrospectives.

Requirements:

1. Bachelor's degree in Computer Science, Engineering, or a related field.
2. 4-7 years of professional experience in backend development with a focus on Java.
3. Strong proficiency in Java programming language and its ecosystem.
4. Experience with building scalable and distributed systems using microservices architecture.
5. Proficiency in Spring Framework (Spring Boot, Spring MVC, Spring Data, etc.).
6. Solid understanding of relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
7. Experience with RESTful API design and implementation.
8. Familiarity with cloud platforms such as AWS, Azure, or Google Cloud Platform.
9. Knowledge of containerization and orchestration tools like Docker and Kubernetes is a plus.
10. Excellent problem-solving skills and attention to detail.
11. Strong communication and collaboration skills.
12. Ability to work independently and in a team-oriented environment.
13. Experience with Agile/Scrum methodologies.

Preferred Qualifications:

1. Master's degree in Computer Science or a related field.
2. Experience with DevOps practices and CI/CD pipelines.
3. Knowledge of reactive programming frameworks like Akka or Vert.x.
4. Familiarity with message broker systems such as Kafka or RabbitMQ.
5. Contributions to open-source projects or active participation in the developer community.

Looking for Java_ Spring boot & Microservices Developers.

Experience: 3-12 Years

Location: Hyderabad

Employment Type: Fulltime

Notice Period: Immediate to 30 Days

Roles & Responsibilities:

• Strong programming expertise in java and j2ee.
• Strong project experience in Spring & Spring boot.
• Good with multithreading, collections.
• Good work experience in Microservices.
• Strong with Data Structures and Algorithms.
• Good with Design and Design Patterns.

Required Skills:

• BS/MS degree in Computer Science, Engineering or a related subject.
• Proven hands-on 3+ years Software Product Development experience.
• Proven working experience in Java development.
• Hands on experience in designing and developing applications using Java EE platforms.
• Object Oriented analysis and design using common design patterns.
• Excellent knowledge of Relational Databases and SQL.
• Very good communication skills.
• Strong analytical and logical skills.

Location: Bangalore

Function: Software Engineering → Backend Development

Requirements:

• 4 + years of experience in Java, Spring, Hibernate, Springboot/microservices
• Good understanding and practical experience in Spring framework ( Spring boot,JPA,MVC)
• Extensively worked on microservices based design architecture
• Strong command on Data Structures, algorithms & Problem Solving
• Very strong on Oops Java Basic,
• Good on Multithreading Concepts
• Should have good exposure on Messaging platform (Kafka,JMS, AMQ etc,)

About Bigbasket.com

At bigbasket.com we believe in being smart, quick and efficient, making your life as leisurely as possible. We understand that in this fast-paced world, time is always of the essence and hence want to make your grocery shopping easy and convenient so that no time is wasted in this process. So, no more hassle of going down to the grocery store and long queues for billing etc. You can browse through our varied range of products at bigbasket.com, order them and get them to be delivered at your own convenient time slot.

We specially hand pick each and every product for you, putting it through a safety packaging process and finding your home, no matter how bad the wind is or how cold the weather is. Our ''No questions asked refund' and ''10% off for a delayed delivery'' policy makes us a customer friendly online food and grocery store. Just follow three simple steps and get your order delivered - simply Browse, Add to cart & Choose delivery slot!

Why Explore a Career at Bigbasket.com

Bigbasket engineering thrives on out of the box thinking and relentless pursuit of excellence. We are looking for senior developers who share our passion for building world class software. If you are excited about the prospect of changing the way India shops for groceries and being a pioneer -- then this a great home for you. Not to mention the thrill of building products that millions use on a daily basis and using cutting edge technology to make the products customers love.

While we are techies at heart -- we don't use technology for the sake of technology, but pride ourselves in solving customer problems in the most efficient and elegant ways. Do the customers really care about efficient implementation of Levenshtein Distance? Well no. But they really appreciate when their typos are pardoned and don't get in the way. Similarly customers don't give a damn that robots efficiently segregate their packets, but they do care about their orders delivered in a timely way.

If you enjoy Coding, Testing and love solving business problems, then we'd like to meet you.

• Translation of complex functional requirements into technical requirements
• Design, develop and maintain complex systems using best of the breed development practices and technology.
• Responsible for the overall software development life cycle.
• Delivery of High Quality & Scalable systems and applications with a sharp focus on timelines.
• Being on the lookout for bettering the software engineering practices and tools within the organization
• Collaboration with other stakeholders to provide robust and well-rounded solutions
• Report on the status of product delivery and quality to management, customer support and product teams.

• Experience of 5+ years in designing & developing highly scalable, performant web applications
• Strong programming, debugging, and problem-solving skills
• Strong Computer Science Fundamentals (Data structures and Algorithms)
• Sound understanding of object-oriented programming and excellent software design skills.
• Good experience of Restful services using Java Springboot
• Strong understanding of database design and SQL (PostgreSQL / MySQL) development
• Good to have knowledge of NoSQL technologies like Redis, MongoDB, Cassandra or any other NoSQL database
• Knowledge of design patterns and good to have experience of large-scale applications
• Should have experience in Apache Kafka, RabbitMQ, SQS or other Queueing systems.
• Experience of working with Amazon Web Services (AWS), Google Cloud Computing (GCP) would be considered as an advantage
• Experience of developing with Serverless Model will be an advantage.