Java Backend Developer

Experience: 6-8 years

Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the 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 a highly motivated and expert team which has made a mark as a high-end technical consulting. 

Required Skills:

• Exp. - 6-10 years
• Experience in Core Java and Spring Boot.
• Extensive experience in developing enterprise-scale applications and systems. 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.
• Good knowledge of multi-threading and high-performance server-side development.
• Basic working knowledge of Unix/Linux.
• Excellent problem solving and coding skills.
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

We are seeking a passionate and skilled Java Technical with 7 to 12 years of experience in product development and team leadership. As a key member of our global software development team, you will be responsible not only for solving complex technical problems but also for leading and mentoring engineers, driving the design of scalable systems, and ensuring high-quality delivery across projects. 

Experience in leading development teams, managing end-to-end project delivery, and working directly with clients to translate business problems into technical solutions is essential. 

Key Responsibilities: 

• Lead the design, development, testing, and deployment of scalable Java applications. 
• Break down client/business problems and define clear technical tasks for the team. 
• Provide technical guidance and mentorship to team members throughout the development lifecycle. 
• Collaborate with cross-functional teams to deliver new features and enhancements. 
• Participate in and lead code reviews, ensuring adherence to best practices and maintaining code quality. 
• Own and drive the architecture and design discussions for new modules and systems. 
• Ensure timely delivery of project milestones and proactively resolve technical blockers. 
• Evaluate and integrate new tools and technologies to improve efficiency and product quality. 
• Serve as the primary technical point of contact for your team and stakeholders. 

Required Skills: 

• 7+ years of hands-on experience in Java development. 
• Proven experience in building products or applications from scratch (not just maintenance/support). 
• Strong object-oriented programming skills and hands-on experience with Spring, Spring Boot, Hibernate, etc. 
• Solid understanding of system architecture, design patterns, and microservices architecture. 
• Experience in leading small to mid-sized teams and managing technical delivery. 
• Proficiency in data structures, algorithms, and performance optimization. 
• Strong communication and stakeholder management skills. 
• Experience working with RESTful APIs and cloud platforms such as AWS, Azure, or GCP is a plus. 
• Good understanding of SQL and NoSQL databases. 
• Strong debugging, troubleshooting, and problem-resolution skills. 

Desired Attributes: 

• Excellent problem-solving and decision-making skills. 
• High levels of ownership, accountability, and self-drive. 
• Strong team leadership and collaboration abilities. 
• Proactive attitude and commitment to engineering excellence. 
• Recognitions or awards in previous roles are a big plus. 
• Passion for continuous learning, coaching others, and improving team capabilities. 

About Wissen Technology:  

Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. 

Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’.  

Our team consists of 1500+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.  

Wissen Technology offers 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.  

We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider. 

Responsibilities-

• Writing back-end code & front –end code and building efficient Java modules
• Contribute in all phases of the development lifecycle, Write well designed, testable, Design, build, and maintain efficient, reusable, and reliable Java code code
• Help maintain code quality, organization, and automatization
• Ensure designs are in compliance with specifications
• Prepare and produce releases of software components
• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
• Translate application storyboards and use cases into functional applications
• Ensure the best possible performance, quality, and responsiveness of the applications
• Identify bottlenecks and bugs, and devise solutions to these problems
• Align with organizational security protocols and data protection requirements and
• Implement the required feature
• Participate in all phases of the SDLC

Skills and Experience-

• BS/MS Degree in Computer Science, Engineering or a related subject
• Hands-on experience in designing and developing applications using Java EE platforms
• Object-oriented analysis and design using common design patterns.
• Profound insight of Java and JEE internals (Class loading, Memory Management, Transaction management, etc.)
• excellent knowledge of Relational Databases, SQL, and ORM technologies (JPA2, Hibernate)
• Experience in the Spring Framework
• Hands-on experience in designing and developing applications using JavaScript, j Query, and AJAX.
• Ensure that the APIs and services are adequate to support the application
• Profound insight of Java and JEE internals (Class loading, Memory Management, Transaction management etc.)
• Excellent knowledge of Relational Databases, SQL, and ORM technologies (JPA2, Hibernate)
• Experience with test-driven development

• excellent written and verbal communication skills Ability to quickly adapt and learn new technologies.
• Collaborate with other parts of the technology team, including product, QA, etc. to deliver a solid product.

Job Description

      The ideal candidate will possess expertise in Core Java (at least Java 8), Spring framework, JDBC, threading, database management, and cloud platforms such as Azure and GCP. The candidate should also have strong debugging skills, the ability to understand multi-service flow, experience with large data processing, and excellent problem-solving abilities.

JD:

1. Develop, and maintain Java applications using Core Java, Spring framework, JDBC, and threading concepts.
2. Strong understanding of the Spring framework and its various modules.
3. Experience with JDBC for database connectivity and manipulation
4. Utilize database management systems to store and retrieve data efficiently.
5. Proficiency in Core Java8 and thorough understanding of threading concepts and concurrent programming.
6. Experience in in working with relational and nosql databases.
7. Basic understanding of cloud platforms such as Azure and GCP and gain experience on DevOps practices is added advantage.
8. Knowledge of containerization technologies (e.g., Docker, Kubernetes)
9. Perform debugging and troubleshooting of applications using log analysis techniques.
10. Understand multi-service flow and integration between components.
11. Handle large-scale data processing tasks efficiently and effectively.
12. Hands on experience using Spark is an added advantage.
13. Good problem-solving and analytical abilities.
14. Collaborate with cross-functional teams to identify and solve complex technical problems.
15. Knowledge of Agile methodologies such as Scrum or Kanban
16. Stay updated with the latest technologies and industry trends to improve development processes continuously and methodologies.

• Strong Experience in Java and related frameworks such as EJB, Spring and Spring Boot
• Strong Experience in REST API based Microservices development & integration that includes long running orchestration services
• Experience implementing services with modern authentication using OAuth 2.0, SAML, JWT
• Implementation Experience in RDBMS (DB2/PostgreSQL) and good SQL query knowledge
• Strong CI/CD experience with GitHub CI/CD or Jenkins or Maven
• Creating custom, general use modules and components which extend the elements and modules of core

Required Skills:

"Overall 5-9 years of experience

Experience of working in Agile projects and aware of key Agile concepts

Good Problem solving and communication skills

Team player, hard working and innovative in his approach

Having stretch mindset and eagerness to learn/adopt new frameworks.

Expertise in Java 8 version or later

Hands on coding experience in Core Java ,Java, J2ee

Should have experience in Spring Boot

Should have good experience in Hibernate, Spring DATA JPA

Experience in RestFull Web services and microservices

Hands on knowledge in JMS and messaging Queues

Hands on Knowledge in Open API spec / swagger 2.0

Hands on knowledge in writing unit test cases using java test framework (Junits, Mockito)

Strong Ability to troubleshoot vulenerabilities and sonar issues and remediate with appropriate sonar rules compliant solution.

Should have hands on experience in SDLC

Should have an excellent client interaction background with Smart, Innovative, Enthusiastic, Proactive

Nice to Have

------------

Knowledge in kafka integeration

knowledge in OCP4 configs and deployment

Knowledge on secret Vaulting

Experience working in Agile project

• Knowledge on CI/CD process.

We are looking for Java Developers in the experience level of 3 to 5 years for our Client for Hyderabad Location. Looking for immediate to 15 days joiners only.

Skill sets-

Java with struts, spring, Spring Boot, hibernate ..oracle DB Background

• 3 years experience working on Python, Django and DRF (must have projects)
• Back-end Development, Third Party SDK Implementation, CI/CD
• Pipeline with AWS, Containerization of Server, Caching, Micro-service Implementation
• Architecture design of the web applications.
• Implementation of a robust set of services and APIs to power the web application.
• Building reusable code and libraries for future use.
• Optimization of the application for maximum speed and scalability.
• 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.
• Translation of UI/UX wireframes to visual elements