
Job Description:
• Experience in Core Java, Spring Boot.
• Experience in microservices.
• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2
• Good knowledge of multi-threading
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.
• Should be able to express their design ideas and thoughts.

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.
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Responsibilities:
- Develop and maintain high-quality, efficient, and scalable backend applications.
- Participate in all phases of the software development lifecycle (SDLC)
- Write clean, well-documented, and testable code adhering to best practices.
- Collaborate with team members to ensure the successful delivery of projects.
- Debug and troubleshoot complex technical problems.
- Identify and implement performance optimizations.
- Participate in code reviews
- Hands-on experience with Springboot, Java 8 and above.
- 5-8 years of experience developing Java applications.
- Knowledge about at least one messaging system like Kafka, RabbitMQ etc.
- Required React developer requirements, qualifications & skills:
- Proficiency in React.js and its core principles
- Strong JavaScript, HTML5, and CSS3 skills
- Experience with popular React.js workflows (such as Redux)
- Strong understanding of object-oriented programming (OOP) principles.
- Experience with design patterns and best practices for Java development.
- Proficient in unit testing frameworks (e.g., JUnit).
- Experience with build automation tools (e.g., Maven, Gradle).
- Experience with version control systems (e.g., Git).
- Experience with one of these databases – Postgres, MongoDb, Cassandra
- Knowledge on Retail or OMS is a plus.
- Experienced in containerized deployments using Docker, Kubernetes and DevOps mindset
- Ability to reverse engineer existing/legacy and document findings on confluence.
- Create automated tests for unit, integration, regression, performance, and functional testing, to meet established expectations and acceptance criteria.
- Document APIs using Lowe’s established tooling.
Job Summary
We are looking for a highly skilled Java Full Stack Developer with strong experience in React.js to build scalable, high-performance web applications. The ideal candidate has hands-on expertise across backend, frontend, REST services, databases, and cloud technologies.
Key Responsibilities
- Design, develop, and maintain scalable Java-based backend services using Spring Boot.
- Build responsive and high-performance front-end applications using React.js, Redux, and modern UI libraries.
- Develop and integrate RESTful APIs and microservices.
- Work with databases (SQL/NoSQL) for efficient data modeling and query optimization.
- Collaborate with product managers, UX designers, and QA teams to deliver high-quality features.
- Write clean, maintainable, and testable code following best practices.
- Conduct code reviews, troubleshoot issues, and optimize application performance.
- Deploy and monitor applications using CI/CD pipelines and cloud platforms.
- Stay updated with emerging tools and technologies in the full-stack ecosystem.
Required Skills
Backend (Java)
- Strong expertise in Java 8/11+
- Spring Boot, Spring MVC, Spring Data JPA, Spring Security
- REST API development and microservices architecture
Frontend (React.js)
- React.js, Redux, React Hooks, Context API
- HTML5, CSS3, JavaScript (ES6+), TypeScript (optional)
- UI libraries: Material-UI/Ant Design/Bootstrap
Databases
- SQL databases: MySQL, PostgreSQL, Oracle
- NoSQL: MongoDB, Cassandra (optional)
DevOps & Tools
- Git, Maven/Gradle, Jenkins/GitHub Actions/Azure DevOps
- Docker, Kubernetes (good to have)
- Cloud platforms: AWS / Azure / GCP (any)
Other Requirements
- Strong problem-solving and debugging skills
- Good understanding of object-oriented design and design patterns
- Experience with Agile/Scrum methodology
Must Have Skills : Core Java ,Microservices , Angular8, Spring boot framework
Minimum 4-8 years of experience in design, development, and deployment of JAVA/J2EE-based applications, writing PL/SQL queries/store procedures.
Strong hands-on experience in design, development, and deployment of J2EE based application database design, PL/SQL complex queries, and Store procedures XML, HTML, JavaScript, AJAX
- Expertise on XML, HTML, JavaScript, AJAX
- Proficient in handling and writing complex PL/SQL queries and Stored procedures
- preferable work experience on JBOSS as an application server or any other J2EE application server
- Should have sound knowledge in product customization, implementation, and maintenance aspects
- Foresighted & good judgment in problem-solving.
- Capable of paying attention to detail.
- Good analytical and logical thinking.
- Prioritizing and organizing
- Team Player with a positive attitude.
- Process knowledge/Technical expertise
- Good Written and Verbal communication Skills
Technical Knowledge/Skills · · · · · · · · Experience with Publish/Subscribe messaging paradigms, distributed transaction processing based on JTA/JTS Specifically experience with JBoss, JMS, Spring, Hibernate Strong UNIX skills in particular Linux Strong relational database skills - Sybase , MS SQL Server, MySQL Knowledge of source control such as Git, Subversion Experience of using a build automation tool such as Maven Experience of using Junit, jMock, Cucumber Experience in defining and implementing web services (REST paradigm) and data services (e.g. OData) · · · · · · Experience with Camel, Mule, Spring Integration, Fuse ESB or similar Experience of working with XML based technologies such as XSLT, JAXB Experience in implementing vendor proprietary realtime connectors using JCA Experience of Atlassian ALM/SDLC tools (JIRA, Bamboo, FishEye, Crucible, Confluence) or Hudson Experience with containerization tool such as Docker and containerorchestration system such as Kubernetes or OpenShift Experience with NoSQL such as MongoDB
Qualifications
· Strong educational background with BS/MS in computer science or other numerate discipline or equivalent
Key behaviours/competencies
· · · · Excellent communication skills and the confidence to challenge Strong problem solving skills - able to think clearly under pressure Analytical skills Organisation & planning · Self-motivated with a keen interest in gaining investment banking experience
· Team working skills
· Ability to constructively influence other departments and individua
• Developing front end website architecture.
• Designing user interactions on web pages.
• Developing back end website applications.
• Creating servers and databases for functionality.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Designing and developing APIs.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages
Design, build and configure applications to meet business process and application requirements.
Must have Skills :
Good to Have Skills :
Core Java, Rest API
Job Requirements :
Key Responsibilities :
Technical Experience :
A:Having strong experience in Core Java, React js B:Understanding of relational Oracle, SQL Server and NoSQL DBs Mongo or Cassandra C:Exposure on Cloud integration and Container services D:Clear concepts on HTML5, CSS3, JavaScript, JQuery D:Prior financial/banking experience is highly desirable
Professional Attributes :
A:Have very strong communication interpersonal skills able to interact with all levels in the organization B:Strong team player who takes initiative, well organized, structured C:Ability to work in a fast-paced environment adhere to strict deadlines D:Flexible, adaptable
Strong hands-on experience with Java; full stack development
Designs, codes, tests, debug, and documents software, and enhance existing components to ensure that software meets business needs
Deploy and maintain Applications/Systems
Work with other software engineers for one or more Agile scrum teams assigned to work on the project
Contribute to the design and architecture to enable secure, scalable, and maintainable software and should be able to clearly articulate the implications of design/architectural decisions,
issues and plans to technology leadership
Develop reusable patterns and encourage innovation that will enhance team velocity
Collaborate on the design with other team members and product owners, both inside and outside the scrum team
Estimate engineering work effort for engineering team and effectively identify and prioritize the high impact tasks
Conduct design and code reviews to ensure code developed meets coding best practices guidelines, unit testing, security, and scalability and maintainability guidelines
Drive a quality mindset within the team
Skills:
3+ years of full Software Development Life Cycle experience
3+ years of experience working as a full stack java developer
Experience or familiarity with technologies such as WSDL, REST and/or SOAP web services, XML, JBoss, Adobe CQ5 DAM, HTML5, CSS3, Bootstrap, Hibernate, Spring.
Experience or familiarity with Oracle db and SQL
Facilitate business facing workshops with the technical team and develop a technical plan.
Provide detailed specifications for proposed solutions.
Communicate architectural decisions, plans, goals and strategies to project teams.
Providing innovation to the product whilst collaborating with the product teams, business
teams and development scrum teams.
Support business and IT strategic planning.
Solves difficult problems with effective solutions using rigorous logic and methods.
Analyse current technologies used within the company and determine ways to improve.
Required Experience and Skills :
Minimum of 5 years of direct business interaction in designing technical solutions.
Experience giving technical direction to both onsite and offshore team members.
Positive outlook in meeting challenges and working to a high level.
Continuous improvement and innovative mind-set.
Ability to take a lead role and take ownership of complex data integration deliveries.
Broad technology experience, awareness of current technology trends and a sound
understanding of contemporary software engineering practices and behaviours.
Excellent presentation skills for communicating both business oriented solutions and
advanced technical concepts.
A degree in Computer Science and/or a business related degree; or equivalent work
experience.
Tech Stack includes: Angular, Java, Spring Boot, Jenkins, Oracle & REST microservices









