Backend Developer

Job Description: 

•  Location - Bangalore / Mumbai
• Notice period - Immediate to serving up to - oct 1st week
• Exp. - must be 5 -12 yrs 
• 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 Experience into Microservices , Data structures , Oops , Algorithms, multithreading etc 
• 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. 
• Experience into High /Low level designing. 
• 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. 

JOB DESCRIPTION

Experience: 3-5 years

Wissen Technology is now hiring for a Senior 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. - 3-5 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

Responsibilities:

 Develop and maintain high-quality, scalable, and efficient Java codebase for our ad-serving platform.

 Collaborate with cross-functional teams including product managers, designers, and other developers to

understand requirements and translate them into technical solutions.

 Design and implement new features and functionalities in the ad-serving system, focusing on performance

optimization and reliability.

 Troubleshoot and debug complex issues in the ad server environment, providing timely resolutions to ensure

uninterrupted service.

 Conduct code reviews, provide constructive feedback, and enforce coding best practices to maintain code quality

and consistency across the platform.

 Stay updated with emerging technologies and industry trends in ad serving and digital advertising, and integrate

relevant innovations into our platform.

 Work closely with DevOps and infrastructure teams to deploy and maintain the ad-serving platform in a cloud- based environment.

 Collaborate with stakeholders to gather requirements, define technical specifications, and estimate development

efforts for new projects and features.

 Mentor junior developers, sharing knowledge and best practices to foster a culture of continuous learning and

improvement within the development team.

 Participate in on-call rotations and provide support for production issues as needed, ensuring maximum uptime

and reliability of the ad-serving platform.

Backend Developer

Qualification: B.Tech./MCA, BCA in Computer Science or equivalent

Experience:     3 - 6 Years

Skills Required:

• Must Have: Java, Spring/ springboot
• Any 2 (Must) out of the below mentioned list :

1. JPA/Hibernate
2. Messaging queue/Kafka/SQS/distributed message/SNS/JMS
3. NOSQL/ Aerospike/ Reddis /Cassendra
4. Microservices

Roles and Responsibilities:

• Technical design, implementation, deployment, and support.
• Partner with Business Analysts to review and implement business

requirements.

• Perform development and unit testing, working closely with Business.
• Mentors and oversees development of resources, including reviewing designs and performing code reviews.
• Ensure designs are in compliance with specifications
• Contribute in all phases of the development lifecycle
• Developing high - volume, low - latency applications for mission - critical systems and delivering high - availability and performance
• Should have experience of working on Core Java/J2EE & OOPS concept
• Should be well versed with Spring/Struts & Apache Came l (OSGI Framework)
• Should have a good understanding of Hibernate and Other ORMs
• Should have an understanding of working on Web Service (SOAP/REST) and Maven
• Build tool such as Jenkins
• Caching Technique(Radis, Hazlecast, Aerospike)
• Database Knowledge- Oracle, MySQL

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. 

• Hands-on Java Engineers, with experience building consumer-facing or enterprise applications using Java stack – Spring, Hibernate, MySQL
• Strong problem solving and analytical skills
• Strong understanding of Object-Oriented Programming concepts and Design patterns.

Do You Know? (Skills good to have)

• Exposure to building service-oriented distributed systems
• In building systems that process big data in a distributed environment, either in real-time streaming or offline batching.
• In messaging systems like Kafka, RabbitMQ, kinesis, etc.
• In real-time computation tools like Storm / Spark or Hadoop-based tools.
• In Data warehousing technologies like Redshift, BigQuery, etc.

Roles and responsibilities

• Develop well-designed performant and scalable applications and microservices
• Writing reusable, testable, and efficient code aligning to software development best practices
• Integrate data storage solutions including databases, key-value stores, blob stores, etc.
• Build integrations with 3rd party applications through apis’ to ingest and process data
• Develop state-of-the-art analytics tools to support diverse tasks ranging from ad hoc analysis to production-grade pipelines and workflows for customer applications
• Ensure security and data protection aspects within the applications
• Partner with Data Scientists and Analytics Engineers to improve the performance and reliability of advanced algorithms
• Ensure high performance and availability of distributed systems and applications
• Interact directly with client project team members and operational staff to support live customer deployments and production issues

• 4+ years of experience in developing applications using python and related technologies.
• Familiarity in data ingestion and processing libraries in python.
• Thorough understanding of REST and GRPC technologies.
• Experience in using ORM (Object Relational Mapper) libraries for data access.
• Experiencing in developing and hosting APIs and integration with external applications.
• Experience in building data models and repositories using relational and NoSql databases.
• Knowledge of JIRA, Bitbucket and agile methodologies.
• Good to have knowledge of AWS services like Lambda, dynamodb, kinesis and others.
• Understanding of fundamental design principles behind a scalable application
• Familiarity with event-driven programming
• Strong unit test and debugging skills
• Affinity for learning and applying new technologies and solving new problems
• Effective organizational skills with strong attention to detail
• Experience in working with docker is a plus
• Comfortable in working with Unix/Linux environment
• Strong communication skills — both written and verbal

Job Description :

Hiring for Staff Engineer (Back end) for a leading product based company at DLF IT Park, Chennai.

Skill Set :

- Strong Experience in any Programming language (Ruby, Go, Java, or other high-performance languages), Architecture, Design (HLD/LLD), Data structures, Algorithms, Hands-on Coding, Problem Solving, etc

- Experience in Web Technology is Must.

- Looking for candidates with good experience in product development.

- Candidates from product development companies will be preferred.

- Candidates willing to relocate/preferring Chennai can apply.

Responsibilities :

- Analyze and drive product requirements

- Architect and design product features for scale and maintainability

- Lead in the design, implementation, and deployment of successful systems and services

- Ensure the quality of architecture and design of systems

- Implement code with very high coverage of unit tests and component tests

- Perform design and code reviews

- Functionally decompose complex problems into simple, straight-forward solutions

- Fully and completely understand system interdependencies and limitations

- Possess expert knowledge in performance, security, scalability, architecture, and best practices

- Software development of high quality/availability core systems

- Cross-training peers and mentoring teammates

- Document HLD/LLD for easy knowledge sharing and future scaling

Must have :

- 8-12 years of experience designing, integrating and developing distributed applications in Ruby, Go, Java, or other high-performance languages

- Experience with cluster and container orchestration systems such as Docker, Mesos, Marathon, Salt or Kubernetes.

- Experience with Service design, systems engineering, API Design and versioning

- Understanding of Design Patterns, Serverless computing, cloud-first architecture, TDD, BDD, CI/CD, Integration Patterns

Good to have :

- Experience building distributed systems using Kafka. Strong grasp of fundamental concepts of Kafka, ZooKeeper and building producer and consumer applications using Kafka

- Familiarity writing and optimizing advanced SQL queries

- Good Linux/UNIX systems knowledge

- AWS compute and storage PaaS services. AWS certified solutions architect nice to have.

- Experience productionizing Machine Learning models

- Experience publishing technical papers in reputed conferences.