
Wissen Technology is now hiring for Java Developer with hands on experience in Core Java, multithreading, algorithms, data structure and SQL skills .
Required Skills:
- Experience - 5 to 10 years.
- Experience in Core Java 5.0 and above, CXF, Spring.
- Extensive experience in developing enterprise-scale n-tier applications for 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.

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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Required Skills & Qualifications
- Bachelor's/Master’s in Computer Science or related field
- 5–8 years of backend development experience
- Strong in Java, Spring Boot, REST APIs, and microservices
- Hands-on experience with MySQL/PostgreSQL and NoSQL databases
- Strong debugging, problem-solving, and communication skills
- Ability to work independently and in cross-functional teams
Preferred Traits
- Proactive mindset with a knack for identifying and fixing bottlenecks
- Detail-oriented with a passion for clean, maintainable code
Team-oriented with a drive for continuous learning and improvement
Strong written/verbal communication skills
· Minimum 2-15 Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Forkjoin pool and other threading concepts)
· Good knowledge of the JVM with an understanding of performance and memory optimization.
· Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).
· Excellent knowledge on collections like, Array List, Vector, LinkedList, Hashmap, HashTable, HashSet is mandate.
· Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.
· Expert level understanding of Object-Oriented Concepts and Data Structures
· Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non-clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.
Please share your updated CV with the the below details:
Total Exp:
CTC:
Expectation:
Current Location:
Preferred Location:
Available for F2F Interview - Y/N :
Notice Period:
Regards,
Rashmi
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.
Required Experience
3 - 8 Years
Skills
Java/J2EE,
Spring,
microservices
+ 1 more
- Develop unit, integration, and functional tests within Grails/Java and contribute to new architectures design for multi-tier Java EE-based products in a SOA environment.
- Interact with Business Analysts to understand software build configuration and testing processes, documenting application functionality and programming accordingly.
- Collaborate with a talented software team to work on various types of applications, ensuring the building of backend APIs using Java-based technologies.
- Stay updated with the latest trends and technologies, conducting POCs on new technical stacks to support and maintain a portfolio of applications.
- Utilize core Java skills to define, design, develop, integrate, test, deploy, maintain, and troubleshoot applications and tools written in Java and other related languages.
- Provide technical expertise in Java development, including Spring, Hibernate, and building scalable solutions for large web application deployments.
- Participate in the full SDLC, from requirements and design to development, testing, and deployment, ensuring the implementation of best practices and industry-standard procedures.
- Possess hands-on experience with Java, J2EE, Spring Boot, microservices, and web services, while also demonstrating proficiency in writing enterprise-strength code and developing backend APIs.
- Work in an agile environment, supporting users by developing documentation and offering assistance with tools, while promoting established development standards and change control procedures.
Job Role:
As a senior R&D Java Engineer, you will work in a highly collaborative, dynamic environment. Your work will impact a lot to make world bit safer place. You’ll design creative solutions to problems faced by companies due to cyber attacks. You will work closely with other partners such as product and pre-sales managers, UI developers, and other software engineers to develop new product offerings and improve the efficiency of the solution.
Responsibilities:
- Develop, modify, and implement, the software components of Nimesa Product.
- Assist QA Engineers with the creation and review of the test cases
- Write junits and test automation if anything required to have the coverage
- Assist other Engineers with the creation of detailed software design specifications.
- Keep an eye out for technology trends, and open-source projects that can be used.
Requirements:
- Bachelor's or Master's degree in computer science or relevant fields.
- At least 3+ years experience in end-end software development for large design and coordinating project teams in the SaaS industry.
- Software development experience with Java and Spring / Springboot, RabbitMQ, MYSQL etc
- Must have worked on fairly complex products from scratch
- Strong knowledge of data structure, multithreading and other comp science concepts (SQL or NoSQL)
- Excellent social and communication skills
- Demonstrated expertise in building Web Applications, Enterprise Applications, Web Services, and Management at scale is a requirement.
- Experience with Design patterns
- Knowledge of cloud-based architectures, deployment and operational aspects of Amazon Web Services cloud
Developed in formal collaboration with the University of Cambridge in May 2000, HeyMath! is an Ed-Tech company whose mission is to Raise the Game in Maths for school systems around the world. We do this using technology to deliver engaging teaching methodologies and personalised learning paths for students. HeyMath! has been successfully adopted by CBSE schools since 2004, with positive outcomes for the entire ecosystem.
Check us out at www.heymath.com
We plan to work mainly from home in 2021 and the virtual office atmosphere is collegiate, informal and friendly, with small high-impact teams making a difference to customers.
What we are looking for:
Experience in building and re-engineering cloud based solutions on AWS.
Strong knowledge of Object Oriented Programming(OOPS) and design patterns is a must.
Hands-on development on Spring MVC framework.
Experience working on Java 8 or above.
Must have very good knowledge of RDBMS such as MySQL and performance tuning of the same.
Exposure to server-side and client-side caching mechanisms.
Ability to debug the applications and provide instant workable solutions.
Experience working on Elastic Search / Kafka / Kubernetes or all is a nice to have.
Work Location: Chennai
Work Experience: 5 to 8 Years
Technical Skills
- Experience in working with Core Java (Ver 11), Spring, Spring Boot, Hibernate, JSF or Primefaces, SQL
- Familiarity with working with Jasper, Rest API is added plus
Responsibilities
- Design, develop, implement, and maintain java application phases, code, and software
- Programming, testing, and debugging
- Competence and comfort using multiple frameworks
- Ability to gather accurate requirements and work closely with stakeholders
- Strong attention to detail with the ability to identify errors
Job Qualifications
- Graduate in Computer Science / Computer Applications / Engineering / Information Technology
- JAVA Microservices with AWS needed
- Provide solution architecture & design involving Cloud and DevOps
- Develop new microservices in a cloud-native way.
- Ensure the unit testing and code coverage are achieved as per the agreed percentage.
- Build reusable code and libraries for future use.
- Optimize application for maximum performance and scalability.
- Collaborate, and coordinate with team members and key stakeholders.
- Communicate effectively with different stakeholders.
- Ensure best practices & standards are followed during SDLC.
- Takes ownership of the whole solution from a technical perspective and ensures adherence to defined Architecture & Design.
- Ensures the latest technology standards, and guidelines are utilized for development.
- Performs consistent & adequate code reviews & feedback to the team.
- Training and induction of new resources on the projects.
Skills and Qualifications
- Deep understanding of OOPs and OOAD.
- Expert and hands-on in Java JEE and Spring framework, Spring Boot.
- Should have experience with RESTful web services and API standards.
- Should know various integration patterns in distributed environments.
- Working knowledge of microservice architecture and different design patterns.
- Hands-on in writing unit tests with Mockito and code coverage tools.
- Hands-on data modeling (Logical physical).
- Knowledge of RDBMS, SQL and any ORM framework (JPA, Hibernate etc.)
- Should know Event-driven and asynchronous programming using message broker.
- Should know about cloud IaaS, PaaS, SaaS and Serverless models of any cloud provider (AWS, Azure, GCP), preferably AWS.
- Knowledge of JavaScript frameworks like NodeJS (For the Backend) and Angular React (For Frontend) will be added advantage.
- Good to have DevOps related technologies like Container (Docker), Container Orchestrator (Kubernetes EKS)
- Excellent in communication
Deliver on the end to end application, functionality and features as per the project requirements and
priorities
• Understand the design and project architecture and perform coding and unit testing in accordance with the design and architecture.
• Contribute in all phases of the software development life-cycle
• Resolve technical issues through debugging, research, and investigation
• Understand the requirement and implement it piece by piece and adhere to the defined standards of coding and testing.
• Understand and Utilize required tools for performance of essential functions of programming
• Diagnose and troubleshoot applications and design solutions to address problems
• Work with testing team to review test cases, to ensure robust quality of developed applications
• Document code consistently throughout the development process as per defined standards
• Core Expertise – Java (Javascript OR React.js is highly desired)
• Good to have - Test Driven Development, Rest API, Micro Services
- A hands-on application developer who is passionate about Java development, building highly scalable and resilient applications, and focused on solving complex business problems
- He/She will have responsibility for unit-level design, coding, unit testing, integration testing, and participating in the full SDLC
- He/She will be expected to produce high-quality code that can pass critical peer review, and to work under a high-pressure and timeline-driven environment.
- Actively participate in development along with team members in creating modules & systems that can be treated as a working reflection of the best practices
Qualifications
- Bachelor’s degree or higher in Computer Science or Engineering equivalent
- Minimum of 3 years’ experience in Java development
- Responsible, organized and possess critical thinking with good interpersonal and communication skills
- Able to demonstrate good analytical problem-solving abilities and strong leadership aptitude
- Able to work at both abstract and detailed level
- Must be fluent in English, and strong communication skills.
- Motivated self-starter that likes to work as part of a team
Technical Requirements
- Strong experience in Core Java 8 and above, Collections and Data structures.
- Develop solutions using core java, Spring / Spring Boot, JSON, Rest API and other web technologies
- Hands on with UI development with strong experience in HTML5, JavaScript, CSS3, Responsive UIs. Added advantage for exposure to Angular. Knowledge on Liferay will be added advantage. Ability to design and develop UIs and end to end integration.
- Object oriented analysis and design using common design patterns
- Excellent knowledge of Relational Databases, SQL and ORM technologies (Hibernate and Mybatis)
- Strong knowledge of test-driven development and continuous integration
- Preference towards candidates having excellent Java multi-threading skills
- Passion for collaboration and working on agile teams
- Develop and Consume Web Services using REST.
- Enforcing and Writing code following good standards (well documented with good code coverage and properly tested code)











