
Java Developer – Job Description 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. - 4 to 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. 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 1200+ 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.

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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Java Developer (6+ Years Experience)
We are looking for an experienced Java Developer to join our dynamic team for an exciting project with a leading client.
Role Details:
Location: Bangalore
Key Requirements:
6+ years of hands-on experience in Java development
Strong expertise in Core Java, Spring Boot, Microservices
Experience with REST APIs & backend development
Good understanding of databases (SQL/NoSQL)
Familiarity with Agile methodologies
- Participate in requirements analysis and design
- Development of Web applications and RESTful APIs using C#, .NET Core, ASP.NET Core, .NET Framework 4.7, C#, ASP.NET MVC, LINQ, Entity Framework 6.0, EF Core
- Development of Microservices using Clean Architecture, CQRS, .NET Design Patterns, SOLID Principles and Object-oriented design & analysis (OOA & OOD)
- Development of Microservices using Microsoft Azure or AWS, Dockers and Kubernetes
- Write clean, scalable code using .NET programming languages (C#)
- Write Microsoft SQL queries and optimize both external and internal DB processes and procedures.
- Use automation tools, following CI/CD best practices in an established DevOps team.
- Write unit and integration tests using Moq
- Collaborate with internal teams to produce software design and architecture
- Develop documentation throughout the software development life cycle (SDLC)
- Serve as an expert on applications and provide technical support
Who we are looking for
A candidate who can design, build and configure applications to meet business process and application requirements.
Key Role Requirements:
- Experience in Java-J2EE Development
- Hands-on experience in Struts (Core Java, JSP, Servlets, EJB) framework.
- Hands-on experience in Oracle SQL, Procedures
- Hands-on experience in Spring boot, Spring batch
- Should have worked on application servers like IBM WAS / Jboss / Web logic.
- Knowledge of basic Linux commands and BIRT reporting tool is an added advantage.
- Knowledge in SVN or any other version control is an added advantage.
- Knowledge in Build tool like ANT, Maven is an added advantage
- Strong problem solving and analytical capabilities.
Requirements
- 2+ years of experience in the Development of JAVA technology.
- Strong Java Basics
- Linux
- SpringBoot or Spring MVC
- Hands-on experience in Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Java 8
- 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 AI/ML algorithms is a plus.
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
Requirements:
- Energetic self-starter, with a desire to work in a startup environment.
- Proficient in advanced Java programming skills.
- Expert in Application development cloud/on premise end to end. Middle layer, DB layer.
- Nice to have understanding on MQ and DB
- Good hands on in Complex Event Processing systems.
- Solved scale and performance issues while dealing with huge sets of data. Pre compute or data aggregation frameworks to achieve good response time.
- Real world experience working with large datasets and NoSQL database technologies
- Experience of debugging applications running on Unix like systems (e.g. Ubuntu, CentOS)
- Experience developing RESTful APIs for complex data sets
- Knowledge of container based development & deployment (e.g. Dockers, rkt)
- Expertise in software security domain, a plus
We are looking for a motivated and talented individual with extensive experience in developing software. You will take an experienced and influential role in contributing to designing, developing and delivering various applications and features to meet performance, scalability and feature requirements in support of the management of unmanned retailing kiosks.
If you want your software to have a long-lasting impact on the business software space, you should consider joining our expanding and exciting organization.
Requirements:
- J2EE - Sprint Boot Microservices
- 2+ years of experience in Java, Spring and Spring boot development (J2EE, J2SE 8)
- Degree, diploma or Certificate in Computer Science or IT.
- Extensive experience with Spring, Spring Boot Micro Services, JPA, Hibernate
- Understanding of Spring Boot 2.x , Microservices and higher with the ability to create an initial project with the correct starter modules.
- Extensive experience in REST and SOAP Webservices Services • Excellent knowledge of databases( PostgreSQL, My SQL)
- Experience in testing tools (JUnit, SOAP UI, Postman)
- Experience in building tools – Maven, Gradle
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience in web application servers - Tomcat etc
- Understanding of Agile Development methodology – SCRUM
- Understanding of continuous integration - Jenkins and Code versioning tools - Git
Strong computer science fundamentals in algorithms, data
structures, storage technologies, distributed computing,
operating systems, etc.
Experience in designing and implementing scalable solutions
in a large scale distributed environment.
Robust and defensive coding skills using Java/Golang or any
other Object Oriented Programming Language.
Strong knowledge of RDBMS and any other NoSQL database
technologies (Cassandra, HBase, MongoDB, Dynamo etc.) .
Experience with building self healing, automatic fault
detection and recovery mechanisms is good to have.
Desired Skills and Experience
Java or golang

• Architecture: Knowledge of data structures and an eye for architecture.
• Strong coding/debugging abilities: You have advanced knowledge of at least one
programming language, and are happy to learn more. Either Go or Java
• Distributed Systems: Experience building distributed systems at scale.
• Fast learner:
• A team player:
• Design and business acumen
Basic Qualifications
• 8 years of experience profeciency in Java or Go language and in handling large data systems
• Proficiency in Spark and related big data handling architectures• Proficiency in SQL









