
Minimum 3+ Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins 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, Hash Table, 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.

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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Senior Software Engineer (Java)
We are looking for a Senior Software Engineer - Java
If you're a creative problem solver who is eager to develop amazing products and hungry for a new adventure, a word class workplace is waiting for you in the heart of Kolkata.
An exhaustive list of expectations :
✓ Design and implement cutting-edge applications
✓ Participate in code reviews and application debugging and diagnosis.
✓ Practice modern software development methodologies such as continuous delivery, and scrum.
✓ Collaborate with product managers and engineers to build scalable systems enabling innovative ordering experiences.
Requirements -
✓ Knowledge and 5+ years of experience in developing Java applications
✓ A completed technical degree in Computer Science or any related fields.
✓ Profound knowledge and working experience with Java Frameworks (Springboot) and SQL databases.
✓ Solid experience in the design and implementation of Restful APIs and design patterns.
✓ Strong knowledge in Core Java, REST , Spring Framework, Spring Boot Microservice , JPA (e.g. Hibernate, OpenJPA, etc.) , Docker, Jenkins, ELK Stack
✓ Experience working with NoSQL Technologies and interest in Elasticsearch, and Microservices architectures.
✓ Curiosity, out of box problem-solving abilities, and an eye for detail.
✓ Passion for clean code
What really makes us interested in you - You are self-motivated. You think like an entrepreneur, constantly innovating and driving positive change, but more importantly, you consistently deliver stupendous results.
Number of position – 3
Job Location – kolkata, Sector 5
Good experience in programming Microsoft C# (preferred) and/or Visual Basic.NET, ADO.Net, and ASP.Net 2.0, .Net 4.5 framework or .net core 2.1 and above
Must have experience In SQL and Agile/Scrum
Nice to have experience in AWS or Azure
Job Overview:
As a Senior Software Engineer, you will work as part of a software development team and be
responsible for designing, implementing, and maintaining the back-end of fast-growing web/mobile
applications.
You could be an ideal candidate if you have a Bachelor's degree in Computer Science from a reputed
college. You need to have expert-level programming skills in Java along with experience in database
management and computer architecture. You should have experience working effectively in software
development teams ensuring tight deadlines are met. You should be passionate about writing elegant
code that solves meaningful real-life problems.
You should have already successfully built and shipped products/modules of significant complexity.
What will your role look like?
● Write well-designed, design pattern-based, testable, efficient, and high-quality code in Java.
● Design (LLD & HLD) and architect technical solutions for the business problems of a large-
scale system and support needs of growing scale.
● Prepare and produce releases of software components.
● Contribute to all phases of the development lifecycle.
Roles and Responsibilities
Who are we looking for?
● B.Tech/M.Tech/MCA degree in Computer Science, Engineering or a related subject
● 2-4 years of relevant work experience.
● Strong problem-solving skills, Computer science fundamentals, Data structures, and
Algorithms.
● Solid OOP and software design knowledge with a great understanding of Design Patterns –
you should know how to create software that’s extensible, reusable, and meets desired
architectural objectives.
● Hands-on experience in Java 8, Spring Boot, and Microservices.
● Excellent knowledge of Databases such as MySQL and MongoDB
● Hands-on experience with caching(Redis), REST APIs, SOAP APIs, JWT, Third-party API
integration, Logging(ELK), etc.
● Experience with all phases of the software development life cycle, best practices, and Agile
Software Development.
● Ability to work autonomously, be excited by new technologies, and never back down from the
challenges of scale.
Responsibilities
- Plan, develop and implement large-scale projects from conception to completion.
- Interface with clients and gather business requirements and objectives.
- Translate clients’ business requirements and objectives into technical applications and solutions.
- Understand and evaluate complex data models.
- Design, develop and implement new integration.
- Execute system development and maintenance activities.
- Develop solutions to improvise performance and scalability of systems.
- Mentor junior and mid-level engineers.
Minimum Requirements
- 3-5 years of relevant experience, working in Java related technologies.
- A Good Engineering or Masters degree from a reputed university
- Should have strong technical skills with a good grasp of OO concepts and design patterns
- Good knowledge of SQL database ( MySQL, Oracle, etc )
- Good understanding of frameworks like Spring, Hibernate, etc.
- Good understanding of spring boot and microservices.
- Exposure to AWS services - S3, SQS, Lambda, DynamoDB, API Gateway, etc.
Good to have
- Knowledge of No-SQL DBs like mongo, dynamoDB, etc.
- Knowledge of message brokers/queuing services like SQL, rabbitMQ, Kafka, etc.
Key Responsibilities :
1. Work closely with client and team and understanding the requirement, design, analyze and do the code changes
2.Helping team and client to resolve issues
3.Should able to handle day to day activity like team management, daily meeting
Technical Experience :
- Net development work experience
- Proficiency in NET Development with Net Core.
- Strong object-oriented programming OOPS design skills, SOLID principles and proficiency in software design patterns
- Experience in database MS SQL Server, No SQL
- Solid understanding of Microservices
- Good understanding Azure, Docker and Kubernetes
- Experience with version control systems GitHub and Bitbucket
Professional Attributes :
1.Should have good communication Skills
2.Should be good team player
3.Should be able to work independently and under pressure
4.Should have good logical and analytical thinking
Requirements:
Experience with Hybris 6.x/ 1905/ 2005 with knowledge of Hybris B2C-ACCELERATOR/HYBRIS -B2B-ACCELERATOR, Hybris back- office, Hybris Frontend WCMS cockpit, product cockpit, Hybris core, Hybris Commerce, Hybris Search, Hybris OCC, Solr Customization
Experience working on core Java, JSP/Servlets, JEE, Spring, Services (SOAP, REST), Design Patterns, Apache, Tomcat, Build Tools- Ant/Maven/Jenkins, SCM Tools - CVS/SVN/ GIT Hub • Knowledge of one or more modules HYBRIS-PIM, HYBRIS-PROMOTIONS, HYBRIS-OMS, HYBRIS -TRAVEL-ACCELERATOR
Additional skills in SOA, ESB, JMS • Knowledge of high-quality professional software engineering practices for agile software development cycle, including coding standards, code reviews, source control management, build processes, testing, and deployment.
Experience in eCommerce/Hybris payment integration, 3rd Party integration development.
Preferable to have development experience in Spartacus Hybris module.
Preferable to have exposure to Azure cloud (Hybris CCV2)
Fundamental knowledge of design patterns.
Experience in communicating effectively with users, other technical teams, and management to collect requirements, describe software product features and technical designs
Passionate about building great solutions
Mentoring the team members to meet the clients needs and holding them accountable for high standards of delivery
Willing to work in Shifts to support Production environment and Samsung.com Global eCommerce client requests.
Being able to understand and relate technology integration scenarios and be able to apply these learnings in complex troubleshooting scenarios
Hybris Platform Development experience of 3-10 yrs.
Basic Qualifications:
- 2+ years of non-internship professional software development experience
- Programming experience with at least one modern language such as Java, C++, or C# including object-oriented design
- 1+ years of experience contributing to the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems.
Additional Job requirements
- BS/MS/PhD in Computer Science/Math or equivalent
- BS in computer science or related field.
- 2+ years of relevant professional software development experience: designing, developing, and delivering software written in Java, C#, or C++, web development.
- Knowledgeable in object-oriented design patterns.
- Experience building highly scalable and distributed systems
Preferred Qualifications
- Experience with service-oriented architecture and application/services development
- Passion for performance debugging and benchmarking
- Ability to clearly and concisely communicate with technical and non-technical stakeholders across all levels of the organization
- Expertise in Java Microservices, Spring, Spring boot MongoDB and Redis
- Hands-on programming skills
- Proficient communication skills
Must have hands on with Spring Boot, Microserives
Must have Angular / React experience
immediate to 30 days offical notice will be considered
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Are you are the one who wants to work on a tech-heavy product, and the challenging technical problems that it entails? Problems vary, and can be as diverse as scaling the product smoothly as the company grows, to setting up a device farm, or solving streaming issues through a browser, without the use of plugins. Will you be excited for the challenge to transform and think critically on many computer science disciplines including product design, usability, building APIs and user-centric online applications, business logic, scaling performance, and 24x7 reliability?
JOB RESPONSIBILITIES
- Writing high quality code, participating in code reviews, designing/architecting systems of varying complexity and scope, and creating high quality documentation supporting the design/coding tasks
- Lead out team meetings, stand-ups, and architecture/design discussions
- Identify areas of improvement in our frameworks, tools, processes and strive to make them better. Evaluate our success metrics and evolve our reporting systems
- Works on the web application layer, backend, systems, streaming and other associated technology to build our product and components
- Find solutions and solve issues around a variety of operating systems or programming languages
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- Own and commit to all your work, and be accountable for your results
- Using and understanding code from Open Source
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- Aggressive problem diagnosis and creative problem solving skills
- Startup mentality, high willingness to learn, and hardworking
- Experience of 3-6 years









