Java Developer

Work Location - Bangalore (Should be ready to relocate)

Kindly go through the JD & company details if interested please revert with below details & acknowledge with your availability.

Mode of work: Hybrid weekly 2/3 Times Mumbai/ Bangalore location.

While you may already know about Wissen and the company history, here is a quick rundown for you.

INTERVIEW PROCESS:

1. Hacker earth assessment
2. Round 1
3. Round 2
4. Final Round

About Wissen Technology:

• 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. We help clients build world class products.

• Our workforce consists of 550+ 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 has grown its revenues by 400% in these five years without any external funding or investments.

• Globally present with offices 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.

• Wissen Technology has been certified as a Great Place to Work®.

• Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.

• Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.

We have served client across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include likes of Morgan Stanley, MSCI, State Street, Flipkart, Swiggy, Trafigura, GE to name a few.

Website : www.wissen.com

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.

Job Description:

As per our conversation, please find below the job description for your review. 

·       Strong written/verbal communication skills

·       Minimum 4-14 Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork join 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.

·       While you may already know about Wissen and the company history, here is a quick rundown for you.

As an engineer, you will help with the implementation, and launch of many key product features. You will get an opportunity to work on a wide range of technologies (including Spring, AWS Elastic Search, Lambda, ECS, Redis, Spark, Kafka etc.) and apply new technologies for solving problems. You will have an influence on defining product features, drive operational excellence, and spearhead the best practices that enable a quality product. You will get to work with skilled and motivated engineers who are already contributing to building high-scale and high-available systems.

If you are looking for an opportunity to work on leading technologies and would like to build product technology that can cater millions of customers inclined towards providing them the best experience, and relish large ownership and diverse technologies, join our team today!

What You'll Do:

• Creating detailed design, working on development and performing code reviews.
• Implementing validation and support activities in line with architecture requirements
• Help the team translate the business requirements into R&D tasks and manage the roadmap of the R&D tasks.
• Designing, building, and implementation of the product; participating in requirements elicitation, validation of architecture, creation and review of high and low level design, assigning and reviewing tasks for product implementation.
• Work closely with product managers, UX designers and end users and integrating software components into a fully functional system
• Ownership of product/feature end-to-end for all phases from the development to the production.
• Ensuring the developed features are scalable and highly available with no quality concerns.
• Work closely with senior engineers for refining the and implementation.
• Management and execution against project plans and delivery commitments.
• Assist directly and indirectly in the continual hiring and development of technical talent.
• Create and execute appropriate quality plans, project plans, test strategies and processes for development activities in concert with business and project management efforts.

The ideal candidate is a passionate engineer about delivering experiences that delight customers and creating solutions that are robust. He/she should be able to commit and own the deliveries end-to-end.

What You'll Need:

• A Bachelor's degree in Computer Science or related technical discipline.
• 2-3+ years of Software Development experience with proficiency in Java or equivalent object-oriented languages, coupled with design and SOA
• Fluency with Java, and Spring is good.
• Experience in JEE applications and frameworks like struts, spring, mybatis, maven, gradle
• Strong knowledge of Data Structures, Algorithms and CS fundamentals.
• Experience in at least one shell scripting language, SQL, SQL Server, PostgreSQL and data modeling skills
• Excellent analytical and reasoning skills
• Ability to learn new domains and deliver output
• Hands on Experience with the core AWS services
• Experience working with CI/CD tools (Jenkins, Spinnaker, Nexus, GitLab, TeamCity, GoCD, etc.)

• Expertise in at least one of the following:

    - Kafka, ZeroMQ, AWS SNS/SQS, or equivalent streaming technology

    - Distributed cache/in memory data grids like Redis, Hazelcast, Ignite, or Memcached

    - Distributed column store databases like Snowflake, Cassandra, or HBase

    - Spark, Flink, Beam, or equivalent streaming data processing frameworks

• Proficient with writing and reviewing Python and other object-oriented language(s) are a plus
• Experience building automations and CICD pipelines (integration, testing, deployment)
• Experience with Kubernetes would be a plus.
• Good understanding of working with distributed teams using Agile: Scrum, Kanban
• Strong interpersonal skills as well as excellent written and verbal communication skills

• Attention to detail and quality, and the ability to work well in and across teams

Developer – Golang 

Responsibilities: 

• An individual contributor who will be part of the Software R&D team working on the following areas 

• Backend work in Golang, Micro services architecture 

• Work with internal team and customers to deliver solutions that will meet the customer needs with respect to the performance security, scalability and functionality. 

• Implementation of API and authentication methods using JWT 

• Writing scalable, robust, testable, efficient, and easily maintainable code 

• Translating software requirements into stable, working, high performance software 

Skills 

• 2-5 years of experience in Go programming language 

• Strong experience in working with Goroutine and channel patterns 

• Experience in Go framework for DB, JSON, Sockets, Web Frameworks and tools 

• Knowledge of logging and configuration packages like Zap, Viper 

• Experience in writing unit tests for Golang code 

• Familiarity with code versioning tools such as Git or Azure Repo 

• Should have knowledge of MySQL, PostgreSQL, or any RDBMS 

• Good knowledge of Linux / Ubuntu 

You will get while working with us

• Opportunity to work on highly distributed systems with micro-services architecture and big-data volumes
• Solve challenging real-world problems by leveraging OOP & functional programming concepts
• Opportunity to incubate an open source project
• Get to work with cutting edge technologies to name a few Kafka, Elasticsearch, Postgres, Scala
• Developing scalable, sustainable and reliable enterprise systems
• Hands-on experience of working with TDD and BDD
• Develop environment using practices such as Continuous Integration, Continuous Delivery
• Learning opportunity on how to turn complex business requirements into a working product

Roles & Responsibilities

• Requirement understanding & analysis by interacting with client
• Carry out architectural and design discussions with fellow team members and come up with right approach
• Understand system domain, user’s perspective of system and use-cases
• Understand patterns in existing code and effectively leverage and improvise it 
• Develop backend involving Java8 based functional programming and REST services
• Ensure best practices of code reviews, automated testing and CI
• Research new tools & technologies required for the projects
• Mentor fellow team members and bring their level up

Must have

• Strong hold on written/verbal communication
• Strong core Java fundamentals
• Strong Analytical & problem solving skills
• Proactive and inherent nature of working with ownership
• Passion of writing clean code
• Experience in designing relational data model from business requirements

Good to have

• Knowledge of functional programming (Scala or Java 8 lambda)
• Knowledge of NOSQL
• Working knowledge of linux & networking
• Performance optimisation - Optimise/refactor queries, code, stored procedures to take performance next level

Your Opportunity

• Own and drive business features into tech requirements
• Design & develop large scale real time server side systems
• Quickly create quality prototypes
• Staying updated on emerging technologies
• Ensuring that all deliverables adhere to our world class standards
• Promote coding best practices
• Mentor and develop junior developers in the team

Required Experience:

• 4+ years of relevant experience as described below
• Excellent grasp of Core Java, Multi Threading and OO design patterns
• Experience with Scala, functional, reactive programming and Akka/Play is a plus
• Excellent understanding of data structures and algorithms
• Solid grasp of large scale distributed real time systems
• Prior experience on building a scalable and resilient micro service
• Solid understanding of relational databases, NoSQL databases and Caching systems
• Good understanding of Big Data technologies such as Spark, Hadoop is a plus
• Experience on one of AWS, Azure or GCP

Who you are :

• You have excellent and effective communication and collaborative skills
• You love problem solving
• You stay up to date with the latest technologies and then apply them in real life
• You love paying attention to detail
• You thrive in meeting tight deadlines and prioritising workloads
• Ability to collaborate across multiple functions

Education:

Bachelor’s degree in Engineering or equivalent experience within the field

• should have at least 5 years of hands-on experience in backend software development using Java.
• should have proven expertise in Spring Boot REST/Microservices.
• should have used design patterns like MVP, MVC or MVVM and should know when to use which.
• should have working experience with relational and NoSQL databases.
• should have multiple years of experience with cloud application design  and in one or more reputable cloud platform providers (e.g. AWS, GCP, Microsoft Azure … )
• should have professional experience working in an agile development environment.
• should have strong communication skills and like making decisions.
• should follow good software engineering principles such as TDD, writing modular, maintainable and clean code