
We are looking for an experienced Java Developer who will work closely with the
technical lead to identify and establish best practices in the company.
Requirements & Responsibilities :
● Design and develop features using Core Java, Spring Boot, and Hibernate
● Ability to design database schema, develop views and stored procedures
● Participate in user story grooming, design discussions and proposal of solutions
● Maintain existing software systems by identifying and correcting software defects
● Practice standard development process leveraging agile methodologies such as
SCRUM and TDD
● Review and analyze business requirements and provide technical feasibility and
estimates
● Manage development / support functions etc
● Excellent in OOPS concepts, system design
● Strong knowledge of Core Java, Spring, Hibernate and Microservices
● Hands-on experience in DB design, SQL, UI Technologies like HTML/CSS,
JavaScript, jQuery, etc.
● Good knowledge of design patterns
● Excellent knowledge of JSP, Servlets, WebServices, JUnit
● Experience in Agile software development
● Familiarity with JIRA, GIT, Maven
● Experience in working directly with a client
● Good knowledge in requirement gathering, analysis, and designing

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Position Overview:
We are seeking a skilled Java Developer to join our dynamic team. The ideal candidate will have a strong foundation in Core Java and extensive experience in developing and deploying applications using Spring Boot, Apache Tomcat, and other related technologies. The candidate should possess expertise in building Restful Web Services, Microservices architecture, and be proficient in implementing multi-threading concepts.
Additionally, experience with Maven, Git, Jenkins, and Agile Scrum methodologies is essential for this role. The candidate should also have a solid understanding of software development lifecycle (SDLC) processes. Familiarity with various databases such as MySQL, PostgreSQL, Oracle, or MongoDB, along with third-party API integration and payment gateway integration, is required.
Key Responsibilities:
• Develop, test, deploy, and maintain Java-based applications.
• Design and implement Restful Web Services and Microservices using Spring Boot.
• Utilize multi-threading concepts to enhance application performance.
• Integrate third-party APIs and payment gateways into applications.
• Collaborate with cross-functional teams to gather requirements and deliver high-quality solutions.
• Participate in Agile Scrum ceremonies and contribute to sprint planning, backlog grooming, and retrospectives.
• Ensure adherence to best practices and coding standards.
• Conduct code reviews and provide constructive feedback to peers.
• Troubleshoot and debug complex issues in production environments.
• Document design decisions, processes, and procedures.
Required Qualifications:
• Bachelor’s degree in computer science, Engineering, or related field.
• Minimum 3 years of experience as a Java Developer with expertise in Core Java.
• Strong knowledge of Spring Boot, Apache Tomcat, and multi-threading concepts.
• Hands-on experience in building Restful Web Services and Microservices architecture.
• Proficiency in using Maven, Git, and Jenkins for build and deployment processes.
• Familiarity with Agile Scrum methodologies and SDLC processes.
• Experience working with databases such as MySQL, PostgreSQL, Oracle, or MongoDB.
• Demonstrated ability to integrate third-party APIs and payment gateways.
• Excellent problem-solving and analytical skills.
• Effective communication and collaboration skills.
• Familiarity with NoSQL databases like MongoDB.
• Knowledge of Azure DevOps for CI/CD pipelines
Wissen Technology is now hiring for Java Developer with hands on experience in Core Java, multithreading, algorithms, data structure and SQL skills .
Required Skills:
- Experience - 5 to 10 years.
- 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.
· 3+ yrs of experience in product development (Preferring SaaS based)
· Must have experience in Java web-based application development
· Hands on development experience on Java/J2EE, Springboot, Spring, Struts, Hibernate, REST Services
· Experience on HTML, JavaScript, JQuery
· Hands on experience on database-writing queries/procedures
· Experience on SVN,GIT,
· Knowledge of Server configuration
· Knowledge of cloud preferably AWS
Java Developers
Exp: 3-5 years
Joining: 15-30 days
Skillset: Java, Microservices, Spring, Springboot, Hibernate
Preferred Skills:
- Good communication skills in English (Written and Oral)
- Strong knowledge of RDBMS concepts
- Strong analytical and problem-solving skills
- Experience in performance tuning
- Experience in interaction with the customer
- Mandatory technical skills Java, Spring boot , Microservices , Hibernate
- Preferred Tools (SVN, GIT, Maven, Jenkins Jira Confluence)
- Ability to explore the application by himself/herself from the training provided.
Responsibilities:
- New feature development or enhancement or change request activities (Requirement analysis, Requirement documentation, Design, Coding, Review, Testing and Release process)
- Defect Fixing (Defect analysis, route cause identification, Code change, testing, obtaining user confirmation and release process)
- Support tasks (Ticket analysis, data uploading, performance tuning, job monitoring, any analysis task, ReportGeneration and etc.,)
- Level 2 and Level 3 support (Support process adherence)
- Functional and technical or solution documentation preparation
- Execution will either be Waterfall or Agile
- The process needs to be followed as defined by RBEI or RBEI’s Customer
- Preparation & participation in the project status and review meeting
A highly motivated, skilled, and 3-8 years experienced JAVA Software Engineer to implement innovative solutions with a proven track record developing end-to-end scientific or business applications in JAVA with emphasis on browser-based applications.
You have oodles of experience designing and developing and documenting Enterprise applications using J2EE technologies. You have worked extensively on the new breed of Enterprise applications utilizing cutting edge technologies such as Java, JavaScript, JPA, Hibernate, spring Batch and web services.
You bring to the table…
- Object oriented skills, including an understanding of common object and web application design patterns.
- Strong in Core Java Concepts, JavaScript, JPA, Hibernate, spring, Batch, web services.
- Hands on experience with SQL
- Should possess hands of experience on Linux.

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1. POSITION DESCRIPTION |
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Job Title: |
Switch Developer/ Integration/ Java Developer |
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Job Type: |
Permanent | Work from Home |
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Qualifications: |
Bachelor’s degree of Engineering, Computer Science or relevant field |
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2. JOB DIMENSIONS: |
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Experience |
3-7 years |
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Primary Skills |
Core Java, Spring Boot, MySQL, Oracle, REST APIs, knowledge of card scheme specifications, ISO8583 Payment standards, EMV Data, Switch payment integration |
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Job Location |
Mumbai/Bangalore | open to remote work |
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3. REQUIREMENTS: |
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· Looking for a Switch developer with 3-7 years of hands on working experience with minimum of 3-4 years in Card and Payment Domain. · Strong knowledge of core java & spring boot · Hands-on experience on payment switch integration · Good knowledge of ISO8583 and EMV Data. · Hands-on experience on any database like MySQL, oracle...etc. · Should be strong in creating/ defining Swagger specs for REST APIs, understand REST principles, Guidelines. · In depth knowledge of Card Scheme Specifications (VISA, MasterCard, Rupay and AMEX), Card · Well versed with payment standards and ISO8583 and EMV data (mandatory), · Hands on experience with Switch payment integration · Resolve technical issues for designers and developers during project lifecycle · Excellent problem solving/troubleshooting skills on Java/J2EE technologies · Result oriented and a versatile engineer who is expert in providing solutions, creating architecture and designs. · Excellent communication (written and verbal) and interpersonal skills |
Roles and Responsibilities
• 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
• Identify opportunities of parallelism: utilizes multi-core solutions where applicable
• Design & Architecture
• Distributed systems design and system interaction
• Identify API signatures
• LLD with class design
• Solve for performance & availability
- Hands-on Java Engineers, with experience building consumer-facing or enterprise applications using Java stack – Spring, Hibernate, MySQL
- Strong problem solving and analytical skills
- Strong understanding of Object-Oriented Programming concepts and Design patterns.
Do You Know? (Skills good to have)
- Exposure to building service-oriented distributed systems
- In building systems that process big data in a distributed environment, either in real-time streaming or offline batching.
- In messaging systems like Kafka, RabbitMQ, kinesis, etc.
- In real-time computation tools like Storm / Spark or Hadoop-based tools.
- In Data warehousing technologies like Redshift, BigQuery, etc.
● He/She is a responsive team player who can proactively contribute for building technical
strategies for applications and systems by promoting an understanding of the technology and
business roadmap.
● He /she is someone who thrives in a fun, fast-paced, dynamic, startup-like environment.
● Work very closely with various business stakeholders to drive the execution of multiple
business plans and technologies .
● Work closely with Product, Design, and Marketing to conceive features, plan projects, and
build roadmaps
● Prior experience with scalable Architecture managing team of minimum 5 engineers and
coaching, mentoring while maintaining a role with code development.
● Proven history of contributing to product strategy and shipping products with multi-functional
teams.
● Highly involved in recruitment while building team also leading app development for both
platforms
● Promote and support company policies, procedures, mission, values, and standards of ethics
and integrity.
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 et








