
Java Developer – Job Description
Wissen Technology is now hiring a Java Developer 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 consultancy.
Required Skills:
• Exp. - 4 to 9 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
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.
Connect with the team
Similar jobs
JOB DESCRIPTION
Experience: 3-8 years
Wissen Technology is now hiring for a Java Developer - Mumbai 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. - 3-8 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.

Company Overview:
Euphoric Thought Technologies is a technology-driven firm focused on building scalable enterprise solutions and high-performance digital platforms. Operating at the intersection of complex backend engineering and modern software architecture, the company empowers businesses to streamline their operations through robust, cloud-native applications. With a culture rooted in technical excellence and collaborative problem-solving, Euphoric Thought Technologies serves a diverse portfolio of clients, ensuring high availability and seamless user experiences across global markets.
Role Overview:
As a Java Developer, you will be responsible for designing and implementing high-traffic backend services that form the backbone of our client platforms. You will work closely with cross-functional teams, including product managers and system architects, to translate complex business requirements into clean, maintainable code. Your contributions will directly impact the scalability and reliability of our systems, ensuring that our technical infrastructure remains resilient as we continue to expand our service offerings.
Key Responsibilities:
- Architect and develop scalable backend services using Java and Spring Boot to support high-volume enterprise applications.
- Design and integrate RESTful APIs to facilitate seamless communication between front-end interfaces and core business logic.
- Implement efficient data persistence layers using Hibernate to ensure optimal performance and database integrity.
- Transition monolithic applications into a Microservices Architecture to improve system modularity and deployment speed.
- Collaborate with engineering teams to conduct code reviews, identify performance bottlenecks, and optimize system throughput.
- Troubleshoot and resolve production issues to maintain high service availability and improve overall system stability.
Required Skillset:
- Demonstrated expertise in Java and J2EE development with 5 to 6 years of hands-on experience in building enterprise-grade applications.
- Proven ability to design and deploy microservices-based systems using Spring and Spring Boot frameworks.
- Strong proficiency in managing database interactions and object-relational mapping through Hibernate.
- Solid understanding of RESTful API design principles and experience in integrating third-party services.
- Excellent analytical skills with the ability to communicate technical concepts clearly to both technical and non-technical stakeholders.
- Ability to work effectively in a fast-paced, collaborative environment based in Bangalore, with a strong focus on delivering high-quality code under tight deadlines.
- A proactive mindset toward learning new technologies and adapting to evolving project requirements.
- Discussing the project aims with the company requirement and development team.
- Designing and building web applications using Laravel.
- Troubleshooting issues in the implementation and debug builds.
- Working with front-end and back-end developers on projects.
- Testing functionality for users and the backend.
- Ensuring that integrations run smoothly.
- Scaling projects based on Company feedback.
- Recording and reporting on work done in Laravel.
- Maintaining web-based applications.
- Presenting work in meetings with clients and management.
- 3+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 3+ 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 of AI/ML algorithms is a plus.
- Candidate Should have 5+ Years Of Experience in Core Java
- You will need strong development skills to work on and improve our Scala-based services, and be able to work together with senior teammates to create appropriate architectural design and ensure all aspects are appropriate to meet the business need.
- Excellent Functional Design and Functional Programming skills (more than 2 years of business experience in Scala and Java projects, respectively)
- Core skills in key supporting technologies and/or frameworks such as Play (AKKA) / Lagom
- Proven experience working in teams in the successful delivery of complex, performant and high quality products
- Excellent spoken and written communication skills
- Experience of SaaS (Software as a Service) environments
- Exposure to RESTful web APIs and a service oriented architecture
- Experience in Linux environments, Shell scripting etc
- Working with XML and JSON including parsing, asserting / matching and extracting
- Experience with Continuous Integration environments and build tools, including Terraform, Jenkins, Maven, Gradle and Ant
- Experience with messaging systems such as Apache Kafka, Amazon Kinesis, Amazon SQS and Rabbit MQ
- Experience working on Live platform SDKs such as Twilio, AWS Elemental
- Interacting with and performance tuning multi-tiered application systems.
- Technically leading complex store system projects including estimating requirements, designing systems, and helping develop solutions.
- Being adaptive to the use of new software and programming techniques as they are required or adapted in IT.
- Acquiring and maintaining additional technical skills for professional development.
- Developing software solutions to meet customer needs.
- Creating and implementing the source code of new applications.
- Testing source code and debugging code.
- Evaluating existing applications and performing updates and modifications.
- Developing technical handbooks to represent the design and code of new applications.
- Being responsible for working with all levels of the business and the development team to establish, promote, and enforce architectural guidelines as well as assisting in the implementation and problem resolution of existing applications and requests.
- Ensuring work meets functionality and quality expectations within given timelines.
What you need to have:
- Experience in application development utilizing JAVA, Spring, SQL, Log4j, IOS, Web Services, JavaScript, and Oracle databases.
- Strong Knowledge of EMV/ NFC Standards
- POS development experience required
- Thorough knowledge of financial institutions, payment processing flows especially electronic payments, and the financial networks for processing.
- Must be able to command the attention and respect of highly technical associates.
- Demonstrated track record of successful system and project implementations.
- Excellent organization skills and attention to detail, including the ability to prioritize and manage a variety of complex projects and activities.
- Strong problem solving, analysis, design, and testing skills.
Must have:
- Knowledge on design, development and deployment of applications based on CMS and Dot Net technology framework
- Strong Analytical, Logical Reasoning and Problem-Solving skills
- Strong in SDLC concepts, RDBMS concepts and SQL/PL-SQL, Data Structures
- Ability to effectively work with a highly technical and virtually located team
Good to have:
- Considerable knowledge in the following: Drupal, .NET MVC, PHP, CSS, Angular, jQuery, Microsoft SQL Server, MySQL, DevOps, Agile software development
- Exposure to mobile application development using any one of the mobile development platforms (iOS, Android, Windows)
Soft skills:
- Ability to co-ordinate among various user groups and internally within the team. This is a critical skill
- Excellent communication skills, both written and oral
- Ability to multi-task and prioritize
- Deliver on commitments
- Self-Starter and willing to learn many new skills on the job
- Willing to work flexible hours as the job demands
- Excellent trouble shooting skills
- Ability to think through various business issues and come up with solid design solutions that will stand the test of time
- Good listening and influencing skills; a strong customer focus is a must
- Experience in Web and Mobile Applications
- Agility and ability to adapt quickly to changing requirements and scope and priorities
- Experience in Java, Python.
- Deep understanding of data structures and microservices.
- Knowledge of Node.js
- Understanding the nature of asynchronous programming and its quirks and workarounds
- Familiarity with front-end technologies
- User authentication and authorization between multiple systems, servers, and environments
- Interaction with multiple data sources
- Good understanding of SQL
- Understanding fundamental design principles behind a scalable application
- Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform.
- Implementing automated testing platforms and unit tests
- Proficient understanding of code versioning tools, such as Git .








