| 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. |

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Position Overview:
We are seeking a Node.js Developer with 1-2 years of experience to join our team. The ideal candidate should have hands-on experience in backend development, a solid understanding of JavaScript, Express.js, and familiarity with databases. You will be responsible for developing and maintaining server-side applications, collaborating with front-end teams, and ensuring optimal performance.
Key Responsibilities:
- Backend Development: Build and maintain server-side applications using Node.js and Express.js.
- API Development: Design and implement RESTful APIs to support various functionalities.
- Database Management: Work with both SQL (MySQL, PostgreSQL) and NoSQL (MongoDB) databases.
- Code Quality & Testing: Write clean, reusable, and testable code while following best practices.
- Performance Optimization: Optimize applications for speed and scalability.
- Troubleshooting & Debugging: Identify and resolve application issues to ensure smooth operations.
- Security Implementation: Apply basic security measures to protect applications and data.
- Collaboration: Work closely with front-end developers to integrate UI components with backend logic.
Required Qualifications:
- 1-2 years of experience in Node.js backend development.
- Strong proficiency in JavaScript and ES6+ concepts.
- Hands-on experience with Express.js or similar frameworks.
- Familiarity with front-end technologies (HTML, CSS, React/Angular is a plus).
- Experience working with databases (MySQL, PostgreSQL, MongoDB).
- Basic understanding of asynchronous programming and event-driven architecture.
- Experience with Git for version control.
- Knowledge of basic cloud services (AWS, Azure, or GCP is a plus).
- Understanding of Docker and containerization is an advantage.
- Good problem-solving skills and willingness to learn.
• Design, develop, code and test the solution
• Experience working with large datasets and NoSQL database technologies (e.g. Cassandra, ES)
• 5-10 yrs of industry experience
• Energetic self-starter, with a desire to work in a startup environment
• Proficient in advanced Java programming skills
• Expert in Application development cloud/on premise end to end. Middle layer, DB layer.
• Nice to have understanding on MQ (e.g. Kafka)
• Good hands on in Complex Event Processing systems
• Solved scale and performance issues while dealing with huge sets of data. Pre compute or data aggregation frameworks to achieve good response time
• Experience working with large datasets and NoSQL database technologies (e.g. Cassandra, ES)
• Experience of debugging applications running on Unix like systems (e.g. Ubuntu, CentOS)
• Experience developing RESTful APIs for complex data sets
• Knowledge of container based development & deployment (e.g. Dockers, K8s)
• Expertise in software security domain, a plus
Participate and contribute in design and development of the core components of different backend services
Ensure high quality of software development wrt. project architecture, code quality, testing and deployment
Own performance of services in production and implement / push for implementation of systems to monitor and debug and fix an issue in production in lowest TAT
Advocate good engineering has the highest priority with the exception of value delivered to the end user
Requirements
Someone who is particular and takes pride in their choice of code editor and clearly communicate why it is better than everyone else's development environment
Has good expreince in building backend solutions
At least an year of experience with golang eco system is a great plus
Who likes to think in terms of software and data architecture before opening the aforementioned code editor
Comfortable with managing development and deployment services
Open and more importantly excited about learning the new technologies
We are a team of educators and engineers who believe that there is a lot more that can be done when it comes to how people learn things.
Senior Software Engineer (Java)
We are looking for a Senior Software Engineer - Java
If you're a creative problem solver who is eager to develop amazing products and hungry for a new adventure, a word class workplace is waiting for you in the heart of Kolkata.
An exhaustive list of expectations :
✓ Design and implement cutting-edge applications
✓ Participate in code reviews and application debugging and diagnosis.
✓ Practice modern software development methodologies such as continuous delivery, and scrum.
✓ Collaborate with product managers and engineers to build scalable systems enabling innovative ordering experiences.
Requirements -
✓ Knowledge and 5+ years of experience in developing Java applications
✓ A completed technical degree in Computer Science or any related fields.
✓ Profound knowledge and working experience with Java Frameworks (Springboot) and SQL databases.
✓ Solid experience in the design and implementation of Restful APIs and design patterns.
✓ Strong knowledge in Core Java, REST , Spring Framework, Spring Boot Microservice , JPA (e.g. Hibernate, OpenJPA, etc.) , Docker, Jenkins, ELK Stack
✓ Experience working with NoSQL Technologies and interest in Elasticsearch, and Microservices architectures.
✓ Curiosity, out of box problem-solving abilities, and an eye for detail.
✓ Passion for clean code
What really makes us interested in you - You are self-motivated. You think like an entrepreneur, constantly innovating and driving positive change, but more importantly, you consistently deliver stupendous results.
Number of position – 3
Job Location – kolkata, Sector 5
Are you a high-performing, collaborative, results-oriented and technologically savvy person who is keen on sales in the digital industry? Then this highly visible role is for you!
Our client is the Health-tech initiative of India's largest business house. Started in 2015, it empowers healthcare providers and consumers in India. All healthcare monitoring services are made available through an app that will help connect doctors, hospitals, pharmacies, laboratories, and consumers, enabling preventive and predictive healthcare. It helps the care-givers to track the entire patient journey from the initial appointment and maintaining their records, generating lab test reports to providing virtual consultation and home-care solutions. It is expected that this futuristic guide will strengthen the doctor-patient relationship and enhance the in-clinic experience.
As the Sr. Java Developer, you will be responsible for developing cutting edge health-tech applications that include high scale transaction processing, intelligent bot-based programs, and data analytics
What you will do:
- Building components for the companys advanced health-tech platform using Java, Solr, SpringBoot, DialogFlow
- Communicating effectively in a cross-functional product development team and presenting ideas and solutions effectively
What you need to have:
- Education: B.Tech with Min. 65% marks
- Expert at hands-on programming in JAVA and J2EE
- Proven expertise in Java interfaces with MongoDB (or similar NoSQL databases) as well as relational databases (MySQL, Postgres, etc)
- Key contributor in atleast one 6+ months development project involving SpringBoot and Hibernate
- Strong understanding of application server infrastructure
- Good working knowledge of Maven-based build systems
- Good understanding of build and deployment pipelines that involve ANT and Jenkins
- Proficient understanding of code versioning tools, such as Git or SVN
- Good knowledge of working on Rest APIs, Webservices
- Excellent problem-solving skills
Desired Attributes
- Hands-on experience with Lucene/Solr
- Familiarity with DiagFlow based chatbot building
- Knowledge of NLP
- Learned AI/ML systems
- Excellent interpersonal skills and the ability to build good working relationships.
- Must be self-motivated to prioritize and manage workload and meet critical project milestones and deadlines.
- Able to effectively collaborate with a team as well as take initiative and work independently to solve problems
Java Full Stack Developer
Notice Period: 45 days / Immediate Joining
Banyan Data Services (BDS) is a US-based Infrastructure Services Company, headquartered in San Jose, California, USA. It provides the full stack managed services to support the business applications and data infrastructure
We are looking for a Java Full Stack Developer who has the expertise and deep knowledge of frameworks and tools used in java and who works end to end on the application stack, right from developing the front end, the back-end module & the database.
It's a once-in-a-lifetime opportunity to join our start-up run by a world-class executive team. We are looking for candidates that aspire to be a part of the cutting-edge solutions and services we offer that address next-gen data evolution challenges
Key Responsibilities
· Ability to write high-quality code efficiently
· Design and develop new services or micro-services.
· Participate in planning and management of development process.
· Share architectural design vision with both technical and non-technical team members, including fellow engineers.
· Works on improvements in development toolset including testing frameworks, deployment scripts, and monitoring libraries.
· Experience solving complex problems and implementing solutions for performance and scalability.
· Write clean, well-structured and maintainable code with automated test coverage and corresponding documentation.
· Explore new latest relevant technology, techniques, frameworks, tools, methodologies, and processes.
· Comfortable working with all aspects of software development; including DevOps, quality assurance, research, and design.
Key Requirements
· 3+ years of experience working with Core Java, Spring framework & Spring Boot, Hibernate, Spring Data JPA.
· Knowledge of microservices architecture is mandatory.
· Must have worked on Java Multi-threading & Java NIO.
· At least 1-year of experience with front-end technologies like Angular, React, Vue.js applications.
· Exposure to any of relation database technologies MySQL, Postgres, Oracle, or any No-SQL database.
· Strong knowledge of Web APIs.
· Experience with agile application development.
· Having knowledge of O Auth 2.0 JWT is a plus.
· Proficiency in one or more modern programming languages i. e. Java or J2EE, Python, Go, React.
· Experience in Cloud Technologies including AWS, containers, and Kubernetes.
· Demonstrated experience in performing DevOps for platforms.
· Strong Skill sets in Data Structures & Algorithm in using efficient way of code complexity.
· Passion for learning new technologies and the ability to do so quickly
http://www.banyandata.com" target="_blank">www.banyandata.com
- Experience in designing and developing web-based applications using Java, J2EE, Web Services, MVC framework, Servlets Spring, Hibernate, Struts, REST, MYSQL.
- Experience in Database application programming for MySQL server using
Stored Procedures, Triggers, Views etc. - Experienced in implementing presentation layer using JSP, HTML, CSS, Ajax, JQuery. Java script.
- Experienced in Analysis, Design, Development, Integration, Deployment
and Maintenance of Web services, Client Server and Web based applications. - Well versed with Agile development process, Scrum.
- Good knowledge in version control system tools like GIT.
- Ability to take independent responsibility as well as ability to contribute and be a productive team member.
- Excellent analytical, logical and programming skills, Self-Motivated, Self-Starter, Team Player can work with minimal supervision with effective Communication skills and Organizational skills combined with attention and Time management skills.

Writing reusable, testable, and efficient code Design and implementation of low-latency, high-availability, and performant applications Integration of user-facing elements developed by front-end developers with server side logic Implementation of security and data protection
Skills and Qualifications :-
• Good Understanding of Java/J2EE programming language, Spring REST, Spring Boot, Spring Cloud , Microservices , NoSQL, Cassandra, couchbase, postgreSQL, Redis or any distributed cache stores, Kafka/spark
• Comfortable producing and refactoring code without assistance
• Hands on experience with dockers
• Hands on experience with cloud environments either AWS or Azure
• Able to do BDD or test driven development
• Hands on knowledge with test frameworks for automation
• Understands different major language paradigms (OOP/Functional)
• Knowledge of design patterns for REST application
• Can implement design patterns with guidance
• Understands CI and continuous delivery.
• Understands BDD/TDD/Performance/Security/Smoke testing
• Working knowledge of CI tooling
• Understands version control & branching strategies
• Comfortable translating small behaviour requirements into tasks & code









