
Hello Everyone,
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. - 5 to 14 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 clientfacing 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 hassuccessfully 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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Job Summary:
As a Java Spring Boot Developer, you will play a key role in designing, developing, and maintaining robust backend services and APIs. With 2.5+ years of experience, including knowledge in Kotlin, you will work alongside a cross-functional team to build scalable and performant systems.
Key Responsibilities:
- Design, develop, and maintain efficient, reusable, and reliable Java and Kotlin code
- Build and consume RESTful APIs and microservices using Spring Boot
- Ensure the best possible performance, quality, and responsiveness of applications
- Collaborate with product managers, QA engineers, and DevOps for end-to-end delivery
- Troubleshoot and resolve performance bottlenecks, bugs, and technical issues
- Participate in code reviews, knowledge sharing, and continuous improvement
Required Skills & Qualifications:
- 2.5+ years of experience with Java and Spring Boot
- Strong understanding of RESTful APIs, MVC, and microservices architecture
- Experience with relational and NoSQL databases
- Proficiency with Git and Agile/Scrum methodologies
Preferred Skills:
- Familiarity with Docker, Kubernetes, and CI/CD tools
- Exposure to cloud platforms such as AWS or Azure
- Experience with unit testing and test automation frameworks
We’re looking for a Java Backend Developer with strong experience in Spring Boot, AWS, and Microservices to join our growing team. If you're passionate about scalable backend systems and love working in a fast-paced environment, we want to hear from you!
What You’ll Bring:
- 4+ years of backend development experience
- Strong hands-on expertise in Core Java and Spring Boot
- Experience designing and developing Microservices architecture
- Solid working knowledge of AWS services
- Familiarity with RESTful APIs, version control (Git), and CI/CD
- Strong problem-solving and debugging skills
- Ability to work independently and in a collaborative team environment
- Immediate joiners are highly preferred
- Experience 5+ Years
- Can join immediately
- Well-versed in Core Java, OOPs concepts, collections, multi-threading, concurrency, lambdas, and streams.
- Hands-on knowledge of Spring Core, MVC, JPA, security, transaction.
- Working knowledge of REST API designing as well as development, using Spring.
- Exposure to Spring Boot, Docker, Kubernetes, OpenShift for the microservices environment.
- Savvy with SQL and database concepts.
- Ability to use frameworks like JUnit, Mockito, etc., for implementing unit testing.
- Sound understanding of code versioning tools, such as Git/bit bucket with Maven.


Responsibilities
- Lead the development of the backend systems for our first product
- Build reliable, secure and performant backend systems
- Drive test coverage and continuous delivery automation within the team
- Mentor and provide feedback to teammates
Requirements
- 5+ years of software development experience
- Strong computer science fundamentals
- Deep and wide knowledge of Java ecosystem
- Can write code that is readable, maintainable, secure and performant
- Know the importance of tests and how to approach writing different types of tests
- Good intuition for REST API design
- Deep understanding of relational databases, transactions, entity-relationship modeling
- Comfortable writing highly concurrent systems
- Experienced in using profilers, tuning garbage collection, optimizing SQL queries
Desired Skills and Experience
- Golang , Java , Python , Ruby

Location: Bangalore
We are looking for the right Backend Developer.
What you will work on Build a scalable API platform that will enhance our customer experience & propel our logistics. You will be part of our Bangalore team of ambitious and talented engineers, who put their best together to build architecturally sound & scalable systems.
What can CasaOne promise you –
An opportunity to - increase your rate of learning exponentially by defining hard problems and solving them - partake in a high-growth journey and increase revenues 5x+ Y-o-Y - be an early innovator in the shifting trend: ‘ownership economy’ -> ‘access economy’ - build a category-defining platform for FF&E (Furniture, Fixture, and Equipment) leasing - build high-performance teams
The must-haves
• Bachelor’s or Master’s degree in engineering
• Good understanding of algorithms, data structures & design patterns
• A minimum of 4 years of work experience Experience required in
• Building distributed systems & service-oriented architecture
• Asynchronous programming, Test Driven Development (TDD)
• Writing (delightful) APIs & integration patterns
• RDBMS & NoSql databases
• Continuous integration & deployment (CI/CD) tools like git, Jenkins
• Cloud computing platforms - AWS/ Azure/ Google Cloud
Good to know CasaOne backend services are written in NodeJS. Experience in NodeJS will be handy, but it isn’t mandatory.
• Must have good knowledge of Java and J2EE
• Experience working with Java Frameworks (Spring, Strut)
• Experience working with RESTful web services (JSON, JWT)
• Experience working with front-end Java script app and frameworks
• Experience with XML and JSON
• Experience with Vert.x is a plus



