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

Person should have strong knowledge in -

1. Core Java,

2. JSP

3. Spring Framework,

4. Spring Boot,

5. SOAP and REST Webservices

6. Application Security.

Person should have 4 to 6 Years of work experience in Java and above-mentioned related technology.

Person should have good Oracle Database knowledge and have good communication skills.

Having work experience in BFSI domain will added advantage

Person needs to work from Mumbai location and also available to join the office

• 2+ year of experience in Development in JAVA technology.
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Any Caching Mechanism
• Good at problem solving

Good to Have Skills:

• 4+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem solving skills.
• Ability to work in a fast paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding of AI/ML algorithms is a plus.

Responsibilities:

• Develop features and modules independently based on the overall product architecture provided.
• Research and find solutions to challenging new problems; align with technology needs of the future.
• Fully grasp the product concept and think through challenging customer variations and use cases.
• Proactively seek to identify issues and resolve them at the stages of design, deployment and QA.
• Maintain quality and ensure responsiveness of applications.
• Demonstrate a strong sense of milestone-based performance and adherence to overall development timelines.

Requirements:

Experience - 2 to 5 years experience in Java Tech stack

• Strong hands-on experience in Java, Spring Boot, microservices and Rest API.
• Good understanding of general data privacy and information security.
• Exposure to cloud securities for SAAS application development would be an added advantage.
• A good understanding of all facets of building and delivering data-centric products is desirable.
• Knowledge of code versioning tools.

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

Job Location: New Delhi

What you’ll do:

• Contribute to all phases of the Software development lifecycle

• Write well-designed testable, efficient code and complex code with Data Structure & Algorithms.

• Ensure designs are in compliance with specifications on Java and RestAPI.

• Prepare and produce releases of software component

• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review

• A Developer whose job includes writing complex code, testing, and fixing bugs.

• Maintain, design the database and organize collected information.

• A specialized programmer who focuses on multiple types of development.

What you’ll bring:

• 2 year to 5 years of proven hands-on Software Development experience.

• Strong experience in Java programming

• Expertise Knowledge of Data structures and Algorithms

• Proven working experience in a product-based organization (preferred)

• Understanding with Java frameworks Spring boot, Microservices and ORM frameworks.

• Must have the experience to design and build scalable REST APIs.

• Object-oriented analysis and design using common design patterns.

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.

Looking candidated from service base or service division of any company.
Minimum Qualification​:

• Hands-on working on Java ( {Language understanding - Java 8, Lambdas, Collections, popular frameworks & libraries}, JVM, GC tuning, performance tuning)
• Worked on REST frameworks/libraries like Spring MVC, Spring Boot, Dropwizard, REST Express etc
• Worked on Relational data stores viz. MySQL, Oracle or Postgres
• Worked on Non-relational data stores viz. Cassandra, HBase, Couchbase, MongoDB etc
• Worked on caching infra viz. Redis, Memcached, Aerospike, Riak etc
• Worked on Queueing infra viz. Kafka, RabbitMQ, ActiveMQ etc