Core Java - Multithreading, Exception handling, Garbage collection.

🚨 Hiring Alert 🚨

We are Hiring Java Backend Intern for 2 months !

Skills Required:

1. Good understanding of Java 17, Spring and any Sql database

2. Good Understanding on designing low level code from scratch

3. Experience in building database schema and code architecture

4. Familiar with design patterns and willingness to write clean, readable, and well-documented code.

5. Familiarity with tools like postman, STS or intelij

6. Understanding of REST APIs and their role in application development.

7. Good DSA and problem solving skills

Roles & Responsibilities:

1. Assist in developing and maintaining web applications.

2. Learn to utilize open source tools for integration

3. Collaborate with team members to design and implement new features.

4. Contribute to optimizing application performance and resolving bugs.

5. Stay curious and keep learning new technologies relevant to spring boot and spring reactive

6. Exposure to version control systems like Git.

7. Passion for learning and contributing to real-world projects.

Preferred Qualifications:

1. Min exp of 0-2 years.

2. Skills in computer science/IT and relevant.

What You’ll Gain:

1. Stipend - 8k -10k/ month, subjective to your performance

2. Hands-on experience in building production-grade applications.

Job Summary:

We are looking for a highly skilled and experienced Java Backend Developer with 4.5+ years of hands-on experience in backend development, system design, and API integration. You’ll play a key role in designing and building high-performance backend systems that are scalable, secure, and reliable. As a core member of the engineering team, you’ll collaborate closely with product owners, architects, and other developers to deliver quality solutions.

Responsibilities:

• Design and develop backend components, REST APIs, and microservices using Java and Spring Boot.
• Contribute to the architectural decisions and system design discussions.
• Write clean, efficient, and testable code following best practices.
• Optimize application performance, scalability, and reliability.
• Integrate third-party APIs and work with external systems.
• Participate in code reviews, mentor junior developers, and support the team’s technical growth.
• Work closely with DevOps to support CI/CD pipelines and deployments.
• Troubleshoot and resolve complex issues in production and non-production environments.
• Keep up with industry trends and advocate for best practices in backend development.
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Required Skills:

• 4.5+ years of hands-on experience in backend development with Java (Java 8 or above).
• Strong expertise in Spring Framework (Spring Boot, Spring MVC, Spring Data).
• Experience designing and consuming RESTful APIs and working with microservices architecture.
• Solid understanding of relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
• Proficient with version control systems like Git and tools like Maven or Gradle.
• Familiarity with Docker, containerization, and cloud platforms (AWS/GCP/Azure).
• Experience with unit testing and integration testing (JUnit, Mockito, etc.).
• Good knowledge of software design principles, data structures, and algorithms.
• Excellent problem-solving skills and attention to detail.

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

Are you looking for a Senior Backend Engineer role in a high growth startup? Are you eager to learn and make a difference at work every day? If so, then read on.

At PlumQR, we work on revolutionizing the Food & Beverage industry with our cloud-based tech products. Millions of businesses across the world are switching for better, smarter & more hygienic products to reinvent their businesses. If you have what it takes to innovate & lead, we have just the right opportunity for you.

Requirements

• Minimum 3 years as a Senior Backend Engineer
• Strong software development experience in a SaaS product company
• Significant experience with NodeJS, React.js, React Native, MySQL, MongoDB, Java
• Cloud computing services (e.g. Google Cloud Platform)
• Strong problem-solving skills
• Ability to explain technical details to people inside the company

• 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.

The Junior/ Senior Software Engineer will be a member of the development team for Supply Chain Application module suite. The Supply Chain modules includes components at various layers, including server-side, integration, supply chain planning engines and user-interface. This individual will be responsible for participating in module development and providing technical assistance to junior members of the team.

Experience and Skills:

• 4-10 years of of experience in writing software
• Strong analytical problem solving skills
• Strong Object Oriented Programming Skills. Good understanding of data structures and algorithms.
• Extensive knowledge of the Java programming language
• Understanding of software design patterns, J2EE components (EJB, JSP, Servlets), and XML
• Experience with relational databases (preferably Oracle) and Object/Relational frameworks. Should be able to write SQL queries, procedures, triggers and do basic performance tuning.
• Experience with C++ is a plus.
• Functional knowledge of supply chain management domain.
• Prior experience in development or consulting with an enterprise software vendor – preferably in supply chain planning or forecasting area.
• Experience with enterprise integration patterns & protocols, including SOAP, REST, JMS, EDI is a plus.
• Experience writing build & deployment scripts (e.g. Ant)
• Excellent communication (verbal and written) and interpersonal skills
• Systems implementation skills: requirements/process analysis, conceptual and detailed design, configuration, testing, training, support
• Some experience with a scripting language such as Python or Ruby preferred
• Some experience with newer web client technologies such as AJAX, EXTJS preferred.

Essential Functions:

• Producing design documents based on a requirements document and participating in design reviews
• Producing effort estimates
• Writing code, automated unit and functional tests, and build/deployment scripts
• Participating in code reviews
• Executing performance/scalability tests & profiling hotspots
• Collaborating with QA, Technical Operations and Production Support during the various phases of a project

Education:

BE/ BTech/ ME/ MTech in Engineering, Computer Science