Experience:
The candidate should have about 5+ years of experience with design and development in Java/Scala. Experience in algorithm, data-structure, database and architectures of distributed System is mandatory.
Required Skills:
- In-depth knowledge of Hadoop, Spark architecture and its components such as HDFS, YARN and executor, cores and memory param
- Knowledge of Scala and Java both
- Extensive experience in developing spark job. Should possess good Oops knowledge and be aware of enterprise application design patterns.
- Good knowledge of Unix/Linux.
- Experience working on large-scale software projects
- Understanding the big picture and the various uses cases involved while crafting the solution and documenting them in Unified Modeling language.
- Own and maintain the architecture document.
- Keep an eye out for technological trends, open-source projects that can be used.
- Knows common programming languages and Frameworks.
- Real time streaming data consumption
Good to have :
- Azure/AWS Cloud Knowledge of Data Storage and Compute side
- Knowledge Multitenant Architecture
- Brief idea of Data Science

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Wissen Technology is now hiring for Java Developer with hands on experience in Core Java, multithreading, algorithms, and data structure.
We are solving complex technical problems in the financial industry and need talented software engineers to join our mission and be a part of a global software development team.
A brilliant opportunity to become a part of highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills:
Experience - 3+.
Experience in Core Java 5.0 and above, CXF, Spring.
Extensive experience in developing enterprise-scale n-tier applications for financial domain. Should possess good architectural knowledge and be aware of enterprise application design patterns.
Should have the ability to analyze, design, develop and test complex, low-latency client-facing applications.
Good development experience with RDBMS, preferably Sybase database.
Good knowledge of multi-threading and high-volume server-side development.
Experience in sales and trading platforms in investment banking/capital markets.
Basic working knowledge of Unix/Linux.
Excellent problem solving and coding skills in Java.
Strong interpersonal, communication and analytical skills.
Should have the ability to express their design ideas and thoughts.
Job Description
Cateina Technologies is looking for a Java Developer, to build a solid team of passionate developers. As a prerequisite, the candidate should have 4+ years of sound programming knowledge and experience mainly in Java and also in the below-mentioned skills, and be willing to work with niche next-gen technologies.
Location: Mumbai
Job Opening: 1
Primary Focused on Java and Spring Boot, Microservice, and Hibernate.
Technical Skills:
- Java
- Spring, Springboot
- MySQL, Postgres SQL, Microservice
- Preference will be given to Jboss/ Camel/ Mule, Quarkus, JMS, MQ, Kafka
- Open API spec 2.0, 3.0
- Design, develop, and maintain robust RESTful APIs and web applications.
- Utilize the JSP framework and Spring Boot for application development.
- Ensure smooth communication using JSON and XML for REST services.
- Write efficient and optimized Oracle queries for database interactions.
- Implement authentication and security measures for application servers and APIs.
- Apply techniques for data integrity, hashing, and encryption.
- Collaborate with cross-functional teams to migrate microservices as needed.
Required Skills:
- Proficiency in Java development, particularly with JDK 1.8.
- Strong expertise in RESTful API services.
- Hands-on experience with JSON and XML communication.
- Solid understanding of application server management and API security practices.
- Ability to write and optimize Oracle queries.
- Experience in authentication mechanisms and security best practices.
- Knowledge of data integrity, hashing, and encryption techniques.
Other Additional Skills:
- Strong communication skills both written and verbal
- Enthusiastic, Creative, and flexible
- Organized, with an ability to prioritize time-sensitive assignments
- Capable of working both independently and in a team environment
- Should have prior team handling experience
- Professional with work ethics
- Completed any degree.
Who can apply
Candidates who:
- have the relevant skills and interests
- Stays in Mumbai or ready to re-locate
Office Location
Cateina Technologies
126, First Floor,
Shivkrupa Industrial Estate,
Lal Bahadur Shastri Rd,
Vikhroli (West),
Mumbai, Maharashtra 400083
Please go through our website www.cateina.com and read about what we do before coming to an interview
Required skills:-
2+ years of experience in the Development of JAVA technology.
Strong Java Basics
SpringBoot or Spring MVC
Hands-on experience on Relational 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:
2+ 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.
Type, Location,
Full Time @ Anywhere in India
Desired Experience
3+ years
Job Description
What You’ll Do
- Architecting and implementing the solutions we build
- Working with the team, client and project manager to efficiently deliver projects
- Translating business needs to technical solutions and communicating with the client
- Ensuring that good programming practices are followed
- Supporting other engineers’ growth with your expertise and mentorship
- Taking part in internal initiatives such as performance reviews, technical recruitment, estimation of pre-sale projects
What you bring to the table
- 2+ years of experience in Spring boot Framework
- Experience with REST- JSON, SOAP/XML is mandatory
- Proven working experience in Java development
- Experienced in Server Side Java, J2EE, Servlets, Spring/Spring boot, Hibernate JAXB, JAX-WS, MySQL/PostgreSQL, Junit
- Knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate).
- Hands-on experience in designing and developing applications using Java EE
- Platforms with Open Source Frameworks - Spring/Spring boot, XML, Integration with SOAP and RESTful Web Services, WS security.
- Experience with test-driven development
- Experience with GIT and Maven.
- Experience with Spring Security.
We are seeking a highly skilled Java Developer to join our team. The ideal candidate should have at least 5 years of experience in Java development and be able to work from the office.
Responsibilities:
- Develop high-quality software design and architecture using Java technology
- Produce clean, efficient, and maintainable code
- Conduct code reviews and testing to identify and fix software defects
- Collaborate with cross-functional teams to identify and solve complex software problems
- Design, develop and maintain software applications using Java technology
- Debug and troubleshoot software defects
Requirements:
- Proven experience as a Java Developer with at least 5+ years of experience
- Knowledge of web frameworks such as Spring, Hibernate, and Struts
- Familiarity with Agile methodologies and software development life cycle (SDLC)
- Experience with source code management tools such as Git or SVN
- Excellent problem-solving skills and ability to work independently
- Strong written and verbal communication skills
- Immediate joiners preferred
If you are a Java Developer with a strong work ethic and a passion for developing high-quality software solutions, we encourage you to apply.
2+ years of experience developing web applications using J2EE.
2+ years of experience in Spring Boot.
Good knowledge of MicroServices.
Expertise developing enterprise-level web applications and RESTful APIs using MicroServices, with demonstrable production-scale experience.
Working experience in Industry Standard protocols related API Security including OAuth is a must.
Demonstrate strong design and programming skills using JSON, Web Services, XML, XSLT, PL/SQL in Unix and Windows environments.
Strong Shell scripting experience
Passion to stay on top of the latest happenings in the tech world and an attitude to discuss and bring those into play.
Strong collaboration and communication skills within distributed project teams
Excellent written and verbal communication skills
• Excellent interpersonal/communication skills, both verbal and written •
• 7+ years of experience in Java/Node.js, REST/Graph QL, Redis on AWS Fargate • Design and develop high quality back-end code (Node.js/Go/JAVA) • Excellent in one or more Go, Java, Node.js skills • In-depth knowledge of Restful / GraphQL API, JSON.
• Experience with CI/CD and tools like Git, Bitbucket and Jenkins.
• Solid understanding of relational databases (e.g., Postgres, MySQL) and experience in NoSQL (e.g., Graph DB, MongoDB, DynamoDB).
• Developing new software applications, features, and distributed services that support a high-scale web application
• Experience working in a fast-paced environment; continuous deployment, test-driven development, agile methodologies
• Stay current with the latest back-end technologies and best practices and share your findings with the team
• Help evolve our backend stack and mentor our other developers when it comes to patterns and best practices
• Work as part of an agile team across a variety of application domains
• Write structured, tested, readable and maintainable code • Participate in code reviews to ensure code quality and distributed knowledge
• Ability to contribute to each step of the product development process (ideation, implementation, and release)
• Experience with performance tuning, profiling, and debugging applications
Experience in Design Patterns, Design principles & memory Management.
- Strong understanding of data structures and algorithms
- Sound understanding of object-oriented programming and excellent software design skills.
- Good experience of SOA/Microservices/Restful services and development of N-tier J2EE / Java Springboot applications (API- s).
- Strong understanding of database design and SQL (mySql/mariaDB) development
- Should have experience in Apache Kafka, RabbitMQ, or other Queueing systems.
Delivery of High Quality, Scalable and Extensible systems, and applications on-time and on-budget.
-Adoption and Evolution of the software engineering practices and tools within the organization
- Keep in sync with the latest technology developments and open source offerings. - Collaborate with other technology and business teams within the organization to provide efficient robust solutions to the problems.
Requirements
-
Overall 2-8 years of software development experience in building web-based and highly scalable applications
-
Excellent understanding of core computer science concepts like algorithms, data structure, system design, OOP, etc.
-
Deep knowledge and development expertise in Core Java and SpringBoot or other equivalent frameworks
-
Strong experience in HTML5 and CSS3 and should have basic experience in JS technologies
-
Good knowledge of database concepts, having SQL writing experience, and familiarity with at least one of the relational databases
-
Worked in a CI/CD environment with Jenkins
-
Experience working in an agile team with software engineering practices like automated testing, test-driven development, continuous integration, etc is a big plus.
-
Ability to quickly learn and evaluate new technologies and work effectively in a fast-paced, dynamic environment
-
Strong oral and written communication.

Requires a bachelor's degree in area of specialty and experience in the field or in a related area. Familiar with standard concepts, practices, and procedures within a particular field. Relies on experience and judgment to plan and accomplish goals. Performs a variety of tasks. A degree of creativity and latitude is required. Typically reports to a supervisor or manager.
Designs, develops, and implements web-based Java applications to support business requirements. Follows approved life cycle methodologies, creates design documents, and performs program coding and testing. Resolves technical issues through debugging, research, and investigation.
Additional Job Details:
Strong in Java, Spring, Spring Boot, REST and developing MicroServices.
Knowledge or experience , Cassandra preferred
Knowledge or experience on Kafka
Good to have but not must
Good to know:
Reporting tools like Splunk/Grafana
Protobuf
Python/Ruby

