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Technologies/Frameworks – · Core Java, J2EE, · Spring Core and Spring MVC, Sprint Boot, Spring Security, · JDBC, Hibernate, RESTful APIs, SOAP WebServices · Knowledge of JavaScript, JQuery, AJAX, HTML5, and CSS3, Angular is added advantage · Junit or Mockito frameworks · Maven, Git · Knowledge Data Structures, · SQL, MySQL · Designing relational database schemas · Basics of AWS, Cloud, Microservices
· BFSI, FinTech |

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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.
2. Spring boot/ Spring or any variations of Spring
3. MySQL
4. Mentions of, distributed systems, scalable systems
5. Mentions of ElasticSearch, Kafka or Redis
6. NoSQL databases like Cassandra/DynamoDB/MongoDB/Hbase etc
7. Mentions of Handling scale/scalable systems
9. Mentions of AWS or Amazon web services.
What you'll do
You will work collaboratively in small teams and iteratively through design and development to deliver fully functioning web-based and mobile applications. In this role, you will employ agile methodologies to quickly provide our consultants with the solutions they need. You will help combine the latest open source technologies together with traditional Enterprise software products. You will be a core member of the team with responsibilities that range from driving the architecture design and technology decisions for shaping the next generation products for various internal teams to ensure that we stay on the leading edge of technology. You will also be responsible for leading multiple development teams while delivering the best in class enterprise-grade software solutions across a breadth of different platforms and technologies.
Backend
• B. E. /B. Tech. in Computer Science or MCA from a reputed university.
• 3.5 plus years of experience in software development, with emphasis on JAVA/J2EE Server side
programming.
• Hands on experience in core Java, multithreading, RMI, socket programing, JDBC, NIO, webservices
and design patterns.
• Knowledge of distributed system, distributed caching, messaging frameworks, ESB etc.
• Experience in Linux operating system and PostgreSQL/MySQL/MongoDB/Cassandra database.
• Additionally, knowledge of HBase, Hadoop and Hive is desirable.
• Familiarity with message queue systems and AMQP and Kafka is desirable.
• Experience as a participant in agile methodologies.
• Excellent written and verbal communication skills and presentation skills.
• This is not a fullstack requirement, we are looking for a purely backend expert.
*forward your resume to (ambikadotj@semperfidotcodotin)(dot - .)
) 2+yrs of strong experience in Java/J2EE technologies (Core Java, Spring, Springboot, Hibernate,
JPA, Microservices)
*) Experience with working on Java 8.0 and its emerging road map for 11
*) Hands on experience in Springboot and good knowledge of MySQL, MongoDB
*) Hands on experience in working with Angular 6 and above. Experience working with product
management and UI/UX designers having knowledge of advanced Javascript, JQuery
*) Working knowledge on components, modules, data/event bindings, templates, using and creating
directives, writing routes, services, forms and models
*) Solid understanding of the full frontend and backend development life cycle
*) Strong experience in Spring Framework (Spring MVC, Spring security, Spring data, OAuth)
*) Experience with Webservices (SOAP and REST) and API integration. Good knowledge of JSON and
Swagger and Postman is required
*) Experience with web application servers like Tomcat, Jetty, JBoss. Knowledge of Kafka with MQTT
would be an added advantage
*) Experience with TDD, code testability standards, JUnit
*) Experience in managing configurations and deploying and hosting applications in AWS
*) Experience with DevOps tools like Git, Maven, SourceTree, Jenkins, Docker and CICD model of
development
- must have experience in Java, Spring Boot, Microservices , Kafka, API
- Developing applications that demand high availability and concurrency.
- Good understanding of DevOps concepts and processes
- Ability to write structured and well documented code
- Good knowledge of working with third-party dependencies and debugging dependency conflicts.
- Knowledge of Unit Testing and Build tools.
- Team Leading & Mentoring for Senior Developers
- Retail domain experience is added advantage.
Job Description
Who are we looking for?
A senior level Java-J2EEE lead to manage a critical project for one of the biggest clients in banking domain. The Individual should be passionate about technology, experienced in developing and managing cutting edge technology applications.
We are looking for people from the trading background
Technical Skills:
- An excellent tech Lead or application architect with strong experience in monolithic Java legacy applications, modern cloud-native
- Strong hands-on experience in Spring, Core Java specifically on multi-threading, concurrency, memory management process, and fair understanding on network communication & protocols.
- experience working in software development on low-latency and high performing systems
- Experienced to guide & mentor the offshore team members, validating application deliverables on regular basis
- Ability to work in a collaborative manner with peers across different time zones.
- Passionate about good design and code quality and have strong engineering practices
- Experience working on GCP will be preferred.
Process Skills:
- Experience in analyzing requirements and develop software as per project defined software process
- Develop and review design, code
- Develop and document architecture framework, technical standards, and application roadmap
- Guide development teams to comply with the architecture and development standards and ensure quality application is designed, developed, and delivered
- Must have excellent communication skills.
Behavioral Skills:
- Resolve technical issues of projects and Explore alternate designs
- Effectively collaborates and communicates with the stakeholders and ensure client satisfaction
- Mentor, Train and coach members of project groups to ensure effective knowledge management activity.
Certification:
- Ultimate sun Java and GCP Certified
· Strong knowledge of core java & spring boot
· Hands-on experience on payment switch integration
· Good knowledge of ISO8583 and EMV Data.
· Hands-on experience on any database like MySQL, oracle...etc.
· Should be strong in creating/ defining Swagger specs for REST APIs, understand REST principles, Guidelines.
· In depth knowledge of Card Scheme Specifications (VISA, MasterCard, Rupay and AMEX), Card
· Well versed with payment standards and ISO8583 and EMV data (mandatory),
· Hands on experience with Switch payment integration
· Resolve technical issues for designers and developers during project lifecycle
· Excellent problem solving/troubleshooting skills on Java/J2EE technologies
· Result oriented and a versatile engineer who is expert in providing solutions, creating architecture and designs.
· Excellent communication (written and verbal) and interpersonal skills
Payment card industry preferred
1. Be hands-on and ship good quality code Fast
2. Understand business and product requirements and brainstorm the technology solutions
3. Take responsibility for the individual modules development, maintenance, deployment
4. Understand existing code, maintain and improve it.
Qualifications -
1. 1+ years of Hands on experience in Core Java,Spring Boot, Spring MVC, Hibernate, Play etc
2. Hands on experience in SQL and NoSQL databases like Postgres, MongoDB, ElasticSearch, Redis
3. Knowledge of software development models like RAD and Agile
4. Quick Learner
● Partner with the product/business teams to understand the product features and
specifications, translate them into high level and low-level design
● Participate in all stages of the Software Development Lifecycle
● Develop back-end components, services, and APIs. Support integration of user-
facing elements, and collaborate closely with the design and front-end development
team
● Write elegant, effective, and scalable code while maintaining the highest level of
coding standards
● Take ownership of the work and ensure timely deliveries
● Drive innovation in product development, while relentlessly improving performance,
scalability, and maintainability
Requirement
● Strong problem solving and analytical skills with a minimum of 2-4 years of
experience in backend development
● 1+ experience as a Java Developer, with strong knowledge of Java web frameworks
like Spring Boot, Hibernate, etc. and experience working in Microservices
architecture
● Hands-on experience of working with Linux/Unix platform
● Strong knowledge of SQL and RDBMS like PostgreSQL/MySQL etc.
● Experience in - Python, Git
● Strong technical aptitude and good knowledge of CS fundamentals
● Sound knowledge and application of algorithms and data structures with space and
time complexities
● Strong design skills involving data modelling and low-level class design
● Follow industry coding standards and responsible for writing maintainable, scalable,
and efficient code to solve business problems
Good to have
● B. Tech./M. Tech. in Computer Science or equivalent from a reputed college
● Prior experience working in a startup environment
● Experience in setting up an entire product from scratch







