
Job Title: Java Developer
Location: Mumbai
Job Type: Full-Time
Experience Level: 4- 8 years
Job Overview:
We are looking for a highly skilled Java Developer to join our development team. As a Java Developer, you will be responsible for designing, developing, and maintaining robust Java applications that meet high standards of performance and reliability. The ideal candidate will have strong analytical skills, excellent problem-solving capabilities, and a deep understanding of Java and its ecosystem.
Key Responsibilities:
- Design, develop, and maintain reliable Java applications.
- Collaborate with cross-functional teams to analyze requirements and translate them into technical solutions.
- Write clean, efficient, and scalable code.
- Develop and integrate APIs and web services.
- Conduct software analysis, testing, and debugging.
- Optimize application performance, scalability, and security.
- Participate in code reviews and contribute to best practices.
Required Skills:
- Proficiency in Java and Java EE (Enterprise Edition).
- Strong understanding of Object-Oriented Programming (OOP) concepts.
- Experience with Spring Framework (Spring Boot, Spring MVC) and Hibernate.
- Familiarity with RESTful API design and development.
- Knowledge of SQL and database management systems like MySQL, PostgreSQL, or Oracle.
- Experience with version control systems like Git.
- Familiarity with build tools like Maven or Gradle.
- Solid understanding of application security, data protection, and performance optimization.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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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



Job Description:
- Bachelor's or Master's degree in Computer Science.
- Proven experience in leading a team of backend engineers
- Strong organizational and project management skills.
- Proficiency with fundamental front end languages such as HTML, CSS and JavaScript.
- Familiarity with Android development - kotlin, RX-java, design pattern.
- Proficiency with server-side languages such as Spring boot, Hibernate.
- Familiarity with database technology such as MySQL and MongoDB.
- Familiarity with cloud platforms(GCP).
- Experience with Agile/Scrum methodologies
- Excellent verbal communication skills.
- Good problem-solving skills.
- Attention to detail.
We are looking for a Java Developer with experience in building high-performing, scalable, enterprise-grade applications. . You'll be required to apply your depth of knowledge and expertise to all aspects of the software development lifecycle, as well as partner continuously with your many stakeholders daily to stay focused on common goals You will be part of a talented software team that works on mission-critical applications
Responsibility
- Write automated test cases to test code.
- Excellent teamwork skills with an ability to get the work done with minimal
- Experience with multiple mobile platforms is a plus.
- A passion and will to accept any new technical challenge that may come across.
- Linux scripting and SSH terminal
- Conceptual, Working knowledge of - DBMS, SQL, PL/SQL.
- Ability to write clean and documented code.
- A team player can provide technical expertise for a small team of developers.
- Strong hands-on and experience in core Java - Java/J2EE
- Design and implement new features, create UI, debugging, and data modeling.
- To update and sync with other team members daily.
- Ability to communicate effectively, both written and oral, at all levels to various technical and non-technical audiences
- Testing all applications against software and hardware versions. Provide timely turnaround and documentation of things implemented.
Additional preferred skills * JSP/Servlets OR JQuery/HTML5 AND JavaScript
Requirements:-
- Working knowledge of - MySQL.
- Working experience on Struts/Spring.
- Experience with web services standards and related technologies - SOAP/Rest, AJAX, JSON, and XML.
● Overlook development of all consumer products in JAVA Lead a team of 4-5 developers
● Optimise components for maximum performance across a vast array of web-capable devices
and browsers Focus on code maintainability and performance of application
● Provide technical advice and assists in solving programming problems
● Continuously create new and interactive features that would help to improve user experience
and user engagement.
● Assist with troubleshooting of issues as needed Lead the design and architecture of software
solutions Assist in developing and maintaining continuous integration pipelines
Requirements
● 6+ years of experience in Java based technologies Experience in designing databases and
system architecture
● Experience in building products from scratch
● Experience in building fintech products like Insurance, Payments, Banking etc.
● Experience in building products for scale
● Strong interpersonal skills
● Good in multi stakeholder collaboration
Must have skills : Experience with Core Java, Microservices, Oracle Database and SpringBoot.
Roles & Responsibility :
- Build new decentralized microservices based on decoupled Kafka architecture
- Thorough understanding of fundamentals including OOP, Design Patterns and Data Structures
- Good knowledge of design principles
- Produce clean, efficient code based on specifications
- Recommend and implement improvements
- Has proven ability to work independently or with minimal supervision
- Drive design discussions while also working with architects if a need arises
Required Skills :
- Experience building software applications professionally using Java.
- Strong understanding of troubleshooting methodologies and root cause analysis
Soft skills required :
- Excellent interpersonal and written communication skills.
- Able to pre-empt, identify and resolve problems that are non-routine or lacking in definition
- Ability to define, implement and work to a schedule
- Good time management skills.
- Attention to detail. Able to work with little or no supervision
- Ability to work with team members across the globe
- Experience with Core Java, Angular and SpringBoot is a plus.
Educational Qualifications : B.E./ ME (CS/EE) / MCA or equivalent higher-level degree
• Code, develop, design and architect features related to the existing application. We
expect you to own modules end to end and take pride in the work products you
ship.
• Lead from the front, when it comes to delivering high quality work products. Serve
as a mentor to the team members
• Create and define performance metrics. Ideate, innovate and hack through the
existing systems to improve performance.
• Perform code reviews, set coding practices and guidelines within the team.
• Make sense of the product specs, be nimble in getting the issues resolved. Be a
thought leader.
Critical Functional Skills:
• Solid understanding and knowledge of Java/C/C++. You should understand the
concepts of multithreading, I/O, messaging, instrumentation etc and their
implementation in Java/Any other Object-Oriented Language.
• Proficiency in the implementation of algorithms and the use of advanced data
structures to solve problems in computing. A solid foundation in the principles of
computer science is desired.
• Ability to write clean, modular, and loosely coupled code by the use of design
patterns.
• He/She should be able to break down and architect complex software systems. For
example- Build
• Cars Availability Engine for Ola.
• Strong decision-making ability
• Deep expertise in at least one programming language & tech stack.
• Substantial experience in building complex and scalable solutions.
• Strong object-oriented design skills, ability to apply design patterns, and an uncanny
ability to design intuitive module and class-level interfaces
• The ability to do deep problem solving and build elegant, maintainable solutions to
complex problems.
• Experience leading multi-engineer projects and mentoring junior engineers
• Experience with full life cycle development in any programming language on a Linux
platform
• Comprehensive operational experience including, optimizations, deployments and
tuning servers like apache/mysql/tomcat/solr
• Prior experience in working with Agile software methodologies (XP, Scrum), TDD,
and Continuous Integration(CI/CD) a plus.
• Experience in building data-driven web application design and development is a plus
• Expert level experience in building a scalable, large and complex business
application.
Experience Required:
• Typically with an experience of 5+ years of development experience in a product
firm.
• Must have lead, designed, architected and delivered at least 1 project in his previous
assignments independently.
Minimum Qualifications Required:
• Btech/MS from a reputed Institute
• Deep expertise with any or combination programming languages: Java, C++, C#,
Ruby, Scala,
• Go any object-oriented high-level proprietary or open-source language with strong
programming constructs. We are not skill-specific but go by strength in
competencies
• Machine coding
• Single machine in-memory program
• Need a working code with functionality
• Readable and well-designed code with right abstractions, separation of concerns,
• right design patterns
• Performant code with concurrency and efficient data structures
• Write test cases covering the happy path and edge cases
• Problem Solving
• Choose the right combination of data structures to solve the problem
• Identify most edge cases for the problem
Job Title: Senior Java Developer
Department: Technology and Research
Reports to: Technical Lead
Context
Sampana Digital (SDPL) (http://www.sampanadigital.com">www.sampanadigital.com) is a digital technology company that provides end-to-end product engineering and digital transformation services. Our engineering services includes web & mobile application development, user experience design, cloud, testing and infrastructure managed services to transform businesses digitally. We also enable enterprises with contextual and personalized two-way multi-channel mobile communications, including SMS, voice, email and PWA technology.
We believe in small teams of smart, committed, and diverse individuals coming together and form a breakthrough insight. We are a team of passionate professionals to craft an unbeatable culture and services.
Come and join us!
Role Description
We are looking for a Senior Java Developer with experience in building high-performing, scalable, enterprise-grade applications.
You will be part of a talented software team that works on mission-critical applications, and your roles and responsibilities include managing Java/Java EE application development while providing expertise in the full software development lifecycle, from concept and design to testing.
Job Responsibilities:
- Work with and direct the team’s software engineers in setting the standards for coding, testing and software quality
- Collaborate closely with the team’s BAs on the efficient transition of BDD’s and Swaggers to the engineers as part of the overall workflow.
- Oversee and manage the scope, timeline, and goals forth delivery of working software
- Oversee and assist in the production of comprehensive documentation
- Oversee and provide support to production cutovers and migrations as required
- Lead the analysis and resolution of technical and application problems
- Supporting the Scrum Master
- Participate in and support backlog grooming, sprint planning, daily stand-ups, reviews, retrospectives, release planning, demos and other Scrum related meetings
- Provide clear reporting on the status of the scope, timeline and progress for the delivery of working software
- Assist in setting up a robust out of hours support process
- Assist in the prioritisation of bugs and defects
- Providing Guidance and Mentoring
- Participate in peer reviews of solution designs and related code
- Provide technical leadership to the teams’ software engineers through coaching and mentorship
- Identify and encourage areas for growth, education and development within the team
General
- Self-Starting Leader capable or working under pressure
- Curious and engaged in Continuous Learning and Professional Development
- Strong DevOps experience
- Java and Spring Developer with +5 years’ experience with the following skills
- Java 1.8+
- Spring
- Microservices with Spring-boot
- Spring cloud config
- Unit tests with Spring-boot
- Docker
- Openshift/Kubernetes
- Basic understanding of API gateways
- OpenAPI (Swagger) specification.
Understanding of basic networking concepts
- Integration into backends via various protocols (SOAP,REST, XML-RPC etc)
- CI/CD (Jenkins, pipelines etc)
The following additional skills would be advantageous:
- Spring reactive
- APIGEE
- Azure DevOps
- Pivotal Kubernetes
- Linux
- Azure Pipelines



· 4+ years in a software engineering role
· You want to work in a highly collaborative environment: we believe a team can be stronger than its individual parts
· Are independent and curious
· Are comfortable owning features from design through delivery to production
· Have experience with one or more modern programming languages
· Are willing to dive into a large code base and contribute immediately
· Enjoy writing code that is understandable, maintainable, and testable
· Collaborative and Communicative - you love being part of a diverse team, building consensus, and establishing credibility.
You are a Class-A communicator: curious, thoughtful, clear, and (mostly) correct.
· BA/BS degree from top institution; MBA or CompSci degree preferred but not required.
About radix health
We, http://www.radixhealth.com/">Radix health, Inc are a Healthcare IT solutions provider organization based out of US and India, developing innovative products that are solving some of the challenging problems for US Healthcare around patient access and patient care. We operate at the intersection of Clinical operations, data science and medical practices and we are a bunch of people with solid domain knowledge, technical expertise and eagerness to grow our footprint in the market.
Radix health is listed as one of the top 100 companies transforming US healthcare and we are proud to be associated with several leading medical groups in US.
Working at radix health
Are you looking for a place where growth opportunities abound, where you'll have the freedom to forge your own path, and where you can feel good about the work you're doing?
We're looking for people who are passionate about improving healthcare, constantly seek to make themselves better, love challenging problems, and never say never. We honor diversity and creative thought. We are committed to building an environment that challenges you, but where you can also have fun. As a growth-stage startup, we offer competitive compensation packages that reward hard work and long-term growth.
Perks at work
- Chance to work on real life problems in the healthcare industry.
- Culture of trust, empowerment and constructive feedback, Advanced technology stack , knowledge sharing through tech talks, product demos, parties & events.
- Competitive salary, great IT equipment, flexible working times, additional holidays and volunteering time off, free beverages and healthy evening snacks.
- A diverse, fun and open-minded team in a nice office in the centrally located part of Pune.
- Extensive onboarding, mentoring and personal development plan.
- Relocation assistance for outstation candidates.
- Comprehensive insurance benefits covering employees and their families.
- Genuine work/life balance served here.
Our Recruiting Process:
We aim to reply to all applicants within a few days of receiving your application. Our interview process consists of several stages, each one allowing us to get to know you better, professionally and technically. It is also an opportunity for you to gain a better understanding of our culture and the work we do here at Radix Health.
The stages include:
- CV review
- A little coding/Logical challenge
- Technical Interview with team
- Interview with VP.
We value your time and we move fast and provide feedback at every stage of the interview.
If you like being at the place where decision making is quick then you are on the right track
Role :
We are looking for an experienced Java or full-stack developer who is passionate about developing solutions that improve healthcare. The ideal candidate will have at least 4 years of experience building large-scale web applications.
You will be expected to define/scope feature-sets and develop new functions. You will be a part of the team that is focussed on our one of many industry leading software solutions, designing scalable/maintainable object oriented architecture and producing market leading, self-testable deliverables.
You are expected to be a technology enthusiast, who likes to think out of the box, embraces new technology alternatives, has a creative mind and is a go-getter.
Qualifications:
- Education : BE/MS/M. Tech/MCS/MCS with excellent records
- Server side : Java/J2EE, REST API development, RESTful web services, Spring Boot framework, JAX-RS APIs
- Concepts : Strong understanding of Data Structures, Concurrency, Mult-threading, Design patterns, Java packages, Garbage collection, collections, JVM, JDBC
- ORM : Mybatis, Hibernate
- Unit testing : JUNIT, TestNG, Mockito
- Build : Maven, Gradle
- CI/CD : GIT, Devops practices, Jenkins, containerization using Docker
- Databases : SQL, No-SQL, RDS, PostgreSQL, MySQL
- Cloud :AWS, EC2, ES3, ECR etc.
- APM: ELK, Grafana
Skills:
- At least 4 years of SAAS software development experience.
- Experience in cloud computing application implementations on AWS is a MUST!
- Excellent understanding of microservices architecture, design patterns, and standard methodologies with an eye towards scale, automation, resiliency, and high availability
- Experience with build-time dependency management (e.g. Ant, Maven); unit testing and code-coverage tools; test automation techniques and tools; and build automation tools (e.g. Jenkins,) tools is required.
- Strong understanding of Java is expected
- Good understanding of architectural principles involved in SaaS and multi-tenant platforms.
- Strong interpersonal, influencing, collaboration and negotiation skills

