
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 7 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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- Experience in Core Java, CXF, Spring.
- Experience in spring boot, microservices.
- Extensive experience in developing enterprise-scale n-tier applications for the financial domain. 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, preferably Sybase database
- Good knowledge of multi-threading and high volume server side development
- Experience in sales and trading platforms in investment banking/capital markets
- Basic working knowledge of Unix/Linux
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
Key Responsibilities:
- Design, develop, and maintain scalable backend applications using Java and Spring Boot.
- Build and consume RESTful APIs and ensure secure, reliable API integrations.
- Develop microservices-based architecture and deploy applications in cloud environments.
- Work with cloud platforms such as AWS/Azure/GCP for application deployment and management.
- Write clean, maintainable, and efficient code following best practices.
- Implement CI/CD pipelines and support DevOps practices.
- Optimize applications for performance, scalability, and reliability.
- Collaborate with cross-functional teams including frontend, QA, DevOps, and product teams.
- Participate in code reviews, technical design discussions, and architectural decisions.
- Troubleshoot production issues and provide timely resolution.
Required Skills & Qualifications:
- 5–10 years of hands-on experience in Java (Java 8 or above).
- Strong experience with Spring Boot, Spring MVC, Spring Data, Spring Security.
- Solid understanding of RESTful API design & development.
- Experience in microservices architecture.
- Hands-on experience with at least one cloud platform (AWS / Azure / GCP).
- Knowledge of containerization tools like Docker and orchestration tools like Kubernetes.
- Experience with relational and/or NoSQL databases (MySQL, PostgreSQL, MongoDB).
- Familiarity with CI/CD tools (Jenkins, GitHub Actions, etc.).
- Strong understanding of Git and version control practices.
- Good understanding of design patterns and object-oriented programming principles.
Key Skills - Java , Hibernate , Spring , Maven, MVC Framework ,Spring Boot , J2EE
- 4 to 8 years of industry experience in (JAVA, Spring Boot , Microservices)
- Ability to effectively manage task distribution
- Able to adapt to changing business requirements and react quickly
- Strong customer focus and results-oriented attitude. Self-motivated individual & able to work independently
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
Good Programming Skills in C, C++, C#/Java, (good to have)
- Exposure to Scripting Languages like Ruby, Python
- Knowledge in version control- Git and/or Subversion
- Exposure to debugging tools like gdb, valgrind
- IDE tools like Eclipse
- Exposure to network programming with TCP, UDP
- Good debugging skills
- Exposure to Multi-threaded programming
- Strong knowledge in Data Structures & Algorithms
About Company:
Headquartered in Houston, Texas, USA, this product-based company is the FinTech leader in B2B Industry’s (AI) Artificial Intelligence-powered Software suite of products in the Order-to-Cash and Treasury Management space.
With close to 2000 plus employees globally, this product-based company preferred choice of leading Fortune 1000 companies, including Adidas, Danone, Starbucks, 3M and Sony, to name a few. 950+ Transformation Projects, 6 continents and 45 countries and many more adding up year on year.
Skills
Experience Range: 3 to 10 Years
Notice Period: Immediate to max 1 month.
Role: Senior Software Engineer – the final role will depend on candidate’s experience and credentials
Education: BE/B. Tech/MCA/M.Sc./MTech
Technology Stack: Java, Struts, Hibernate, Spring, MySQL, ExtJS, Elastic Search, AWS Infra/any cloud
Location: Hyderabad
Please share your profiles only if you can join in 1 month.
Java/J2EE stack
• Design and develop RDandX Network’s microservices and ensure bug free code is pushed to
the deployment pipeline to support large volume of transactions
• Define and communicate the technical design requirements to the Network’s stakeholders
and the Engineering lead
• Responsible for building restful services to integrate with third party services like AdWords
and Facebook marketing API
• Responsible for designing the technical architecture of the different services and
maintaining and upgrading it
• Designing the unit test cases and building the framework for the development team to
enforce the unit testing in all the services
• Be involved and participate in the end to end products’ lifecycle management
• Learn about new technologies and Stay up to date with best practices
• Collaborate with multidisciplinary team of designers, engineers, system administrators and
product team
• Lead the Backend team and manage their day to day activities and work deliverables
Nice to have: python
Must frameworks and technologies: Springboot, kafka, MQTT, docker/kubernetes, REST APIs
Persistence layer: MongoDB, Elastic Search, Any GraphDB (Neo4j/Arango), SQL, HBase
Must have: Exposure in large scale architecture (Concept of queues, micro services, functional programming)
Must have: Strong Data structure and design principles
Expert in developing Node.js applications, Strong understanding of NPM and modular application development skills building, Proficiency and hands-on experience with Node.js, Express, Sockets, MongoDB/Elasticsearch/Redis/MySQL, Apache Kafka/Google PubSub, Experience of working in MEAN Stack is a plus)










