
Responsibilities
Build distributed, highly available, and fault-tolerant applications using Java, Spring, Kafka, and other technologies
Build large-scale and highly available APIs, both internal and external
Build, deploy, release, and support applications in the early stages
Skills
Must have
Overall 10+ years of experience as a Java Developer
Core Java 10+ years
Good hands-on coding skills
Must have experience in investment banking-related projects
Should have working experience in Trading life cycle project
Spring framework 5+ years
Kafka or other messaging
Knowledge of key APIs: JPA, JTA, CDI, etc.
Knowledge of various design and architectural patterns
Understanding of microservices architecture
Containerization solutions (e.g. Docker, Kubernetes, OpenShift)
Building tools (e.g. Maven, Gradle)
Version Control (e.g. Git)
Continuous Integration systems (e.g. TeamCity, Jenkins)
Experience in the finance industry and work with the Fintech community

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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.
Role & Responsibilities :
- Individuals are responsible for all traditional development activities analysis, design, coding, testing, and documentation.
- Add new features to existing Windows and Web-based applications in Visual Studio 2019. Interacting with internal team.
- Transform business and design needs into innovative products.
- Drive all projects to completion within deadlines.
- Perform thorough testing to find issues ahead of time.
- Engineering software needs more precise analysis & coding skillset.
- Enhance skillset by working with fortune 500 clients.
- Interacting with internal team.
Qualifications :
- B.E in computer science or related fields.
- Excellent programming & communication skills Strong problem solving, judgmental, and decision-making skills.
- Ability to work at the tactical and strategic levels of IT initiatives.
- Impressive hands-on experience in Java, database(Oracle), OOPS, Java Swing, Javafx
- Self-Motivated, flexible & Innovative.
- Write maintainable/scalable/
efficient code. - Design and architect technical solutions for the business problems of a very large e-commerce portal.
- Work in a cross-functional team, collaborating with peers during the entire SDLC.
- Follow coding standards, unit-testing, code reviews etc.
- Follow release cycles and commitment to deadlines
- Experience level of 3 to 6 years of experience in very large scale applications.
- Strong problem-solving skills, OOPs, data structures and algorithms.
- Experience with distributed systems handling large amounts of data.
- Excellent coding skills in Java/J2EE.
- Very good understanding of Web Technologies.
- Very good understanding of any RDBMS and/or messaging.
- B Tech/BE in Computer Science or equivalent from a reputed college.

➢ Must have great ability to create RESTful webservices in SpringBoot
➢ Great to have knowledge and experience in PL/SQL
➢ Great to have exposure into React 17+/MaterialUI
➢ Exposure into Load Balancing using Nginx
➢ Exposure into Docker
➢ Exposure into Fusion
Knowledge, Skills and Attributes:
➢ Good verbal, written communication skills and interpersonal skills
➢ Ability to work in late evening shifts to overlap with the counterparts in US
➢ Demonstrate a positive attitude
➢ Display a level of integrity
➢ Immediate joining
➢ Experience of minimum 5 years
➢ Handle things individually, ready to start off
●3+ years of Software Engineering or Software Development experience, preferably in a related field.
● Good knowledge of Core Java (Minimum Version 8)
● J2EE with a good understanding of Servlets and JSP
● Experience in Spring Modules – Spring IOC and AOP, Spring Boot (version 2 plus), JDBC
● Expertise in design and development of various web and enterprise – level applications using Java/J2EE
technologies such as Spring, Hibernate, Rest services.
● Web Services (including SOAP, XML, XML Schema, JSON, and REST)
● Tools required: Maven,Eclipse, Github, and Swagger
● Good knowledge of SQL and Redis (NOSql)
● Ability to document requirements and specifications
● Proven work experience as a Software Engineer or Software Developer
● Ability to develop software in Java or any other OOPS languages
● Excellent knowledge of relational databases, SQL and ORM technologies (JPA2, Hibernate)
● Experience in developing Web Applications using at least one popular Web Framework (Spring)
● Experience with test-driven development
● Proficiency in software engineering tools
Remote (Pan India)
SHIFT TIMINGS: UK Shift
Summer - 1:30pm-10:30pm IST
Winter - 2:30pm-11:30pm IST
Good to have:
API Integrations with UI Layer
- Contribute to architectural and design discussions.
- Design, Develop & Unit test features in the product.
- Ensure smooth and timely communication with both the internal and external stakeholders.
- Participate in estimations and ensure timely delivery of the features.
- Conduct peer reviews and ensure the quality of committed code.
Essential Experience And Skill-Set You Should Have
- Should have at least 2-4 years of experience in software development.
- Should have at least 2 years of hands-on experience in Java as a programming language.
- Should be well versed with Java 8 or above.
- Strong foundation in computer science, with strong competencies in Data Structures, algorithms, and their space-time complexities.
- Expertise in developing and consuming RESTful, micro-services using Spring Framework.
- Expertise with Spring data persistence frameworks such as JPA, -Repositories, Entities, Entity Manager etc.
- Exposure to Spring Cloud Frameworks such as Discovery, Config, Spring Cloud Gateway, Ribbon.
- Good to have knowledge on other Spring Frameworks such as Spring Security, Spring AOP.
- Must be proficient with the Linux commands.
- Strong debugging and troubleshooting expertise
- Good working knowledge of Relational and Non-Relational Databases.
- Sound understanding of Agile Software Development Processes like Scrum & Kanban.
- Deep practical knowledge of Domain Driven Design approach to software design.
- Experience writing and maintaining Unit and Integration tests.
Additional Desirable Qualifications
- Good to have knowledge on Java reactive framework.
- Understanding of CI/CD (Jenkins, Maven, Docker, Kubernetes).
- Knowledge on message queueing frameworks like RabbitMQ / ActiveMQ/ Kafka will be add-on.
- Identity & Security Domain Knowledge covering OAuth2, OpenId - Connect, Digital Signatures & Certificates.
- Domain knowledge of Ed-tech industry will be a plus
Required Soft Skills
- A self-starter attitude, the ability to work independently and in a group, demonstrated initiative, and good writing/briefing skills are great to have.
- Should be good at analytical thinking and breaking down large problems into solvable chunks.
- Demonstrated the ability to think creatively and come up with ideas/thoughts with significant business/ organizational impact.
- Ability to quickly adapt to changing technological trends.
- 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.
industry experts.
● YOu will join the mission to create positive impact on millions of peoples lives
● You get to work on the latest tech stack and a team that is highly experimental.
● YOu get to work on AWS with a scalable, serverless and micro-services architecture.
● You get to work with super humans (Psst: Look up these super human1,super human2)
● You get to work in an accelerated learning environment
● All is possible when backed by investors who are committed and believe in the power of
decentralization of data using block chain technology
What you will do
● You will write clean and optimised codes that are well documented
● You will collaborate with and also mentor team members and
● You will contribute to the development effort of several Web Applications (internal as well
as customer-facing)
● You will adhere to best coding practices in front-end development across the team
● You will be agile, research oriented and experiment in learning new product disciplines.
● You will be responsible for the stability of your project and overall system health
post-release
● You will organize code reviews with peers and participate in tech brainstorming sessions.
What we need
● A Minimum 1 years of experience as a back-end engineer and minimum 1 years of
experience using Node JS or using Typescript/Java/Python/Golang.
● Skills to deliver quality APIs and systems using Node JS, Postgres and ElasticSearch
● Experience writing unit test cases
● Experience building Rest APIs using any ORM, bonus for GraphQL APIs
● Understanding of authentication patterns, logging and error handling
● Preferred having experience with working knowledge of React JS, AWS Lambda, API
Gateway, Pub-Sub model
● Understanding of design patterns and event driven architecture is an added advantage.
- Hands on Java experience with minimum 8 yrs. More experience is a plus but need to be hands on.
- Server side programming experience with technologies: Spring, Hibernate & Swing is a plus
- Good DB knowledge, hands on PL/SQL or T-SQL
- Experienced to work on Linux, git, IntelliJ, Eclipse
- Experience of designing and developing end-to-end solutions.








