Java Developer

WISSEN TECHNOLOGY is Hiring!!!!!

Java Developer with messaging experience (JMS/EMS/Kafka/RabbitMQ) And CI/CD.

Exp-3 to 6 yrs

Location-Pune|Mumbai|Bangalore

NP- Serving and less than 15 days only.

Requirement:

Core Java 8.0

Mandatory experience in any of the messaging technologies like JMS/EMS/Kafka/RabbitMQ

Extensive experience in developing enterprise-scale n-tier applications for the 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.

Mandatory development experience on CI/CD platform.

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. 

Strong written and oral communication skills. Should have the ability to express their design ideas and thoughts.

Engineering Manager – Backend

Opportunity in this role / Why should you join us?

Series D funded supply chain startup.

Requirements

• Software engineering experience of greater than or equal to 7 years
• Experience managing a technical team of at least 3 people
• Exposure to consumer facing products
• Strong technical background and ability to contribute to design and review
• Familiarity with our tech stack or an analogous tech stack

Technologies Used

• Web application frameworks : Ktor, Spring Boot, Ruby on Rails, Node.js, Java Play, AWS Lambda
• Languages : Kotlin, Java, Ruby, Javascript, Python
• Datastores : PostgreSQL, Aerospike, Redis, DynamoDB, Amazon Redshift
• Communication : HTTP, Amazon SQS, Sidekiq, Amazon SNS
• Server management : Amazon ECS, Docker
• Design frameworks : Domain Driven Design, Clean Architecture, Layered Architecture

Roles and Responsibilities

This role requires a person to drive the engineering of a set of products by aligning with business and product

stakeholders and building and upskilling a team to aid in this. The responsibilities include:

Business and product alignment and planning

• Work closely with business and product stakeholders to understand and align with product initiatives and iterations.
• Help shape the engineering requirement by aligning with the product manager and fleshing out concepts and user flows.
• Formalize business requirements into roadmaps and sprints.

1. Product and system development

• Drive high level modeling and design for projects, also focusing on non-functional aspects, including but not limited to database design, communication protocols, deployment systems, etc.
• Drive adoption of design frameworks like domain driven design, clean architecture, etc., resulting in a robust layered architecture.
• Drive good code review practices, using the review process as a mentoring tool to upskill people.
• Ensure test coverage of systems, partly through unit and integration testing, and partly through blackbox testing by collaborating with the Quality Assurance team, via good testing practices.

1. Project Management

• Drive the execution of the project by delegating tasks effectively.
• Resolve blockers through technical expertise, negotiation and delegation.
• Estimate timelines and ensure adherence to them through effective sync-ups and course corrections.

1. Maintenance

• Formulate SLAs and oversee their adherence for the various systems, effectively tracking issues and performance inefficiencies.
• Performance monitoring and optimization for systems.
• Drive technical re-design, remodeling and refactoring of systems for robustness and sustainability.

1. Team Management

• Typically manage a team of 3 - 6 members and a portfolio of 3 - 6 products.
• Do periodic assessment of reportees, chart their career growth paths and train them.
• Recruit members into the team by collaborating effectively with the recruitment team.

Product Overview

You will be contributing to products concerning both customers and partner drivers. Product sectors

include:

• Growth : You’ll build tools to help boost user growth on the platform including our industry bestdriver on-boarding, training and certification system, referral system, and lead managementmmodels.
• Lifecycle Management : Build tools to help users engage with the platform better, which includes rewards and recognition module, subscription service, account management tools, partner and customer wallets and payout modules, and churn detection systems among others.
• Transaction Experience : You’ll help deliver the most delightful booking experience to our customers and drivers. As part of this team, you’ll be responsible for our core booking system, pricing and payment systems, location tracking and filtering services, fraud prevention systems, and in-app ticketing and support among others.
• Fulfilment : As part of the fulfilment team, you’ll work on systems which ensure high degree of ride fulfilment on the platform. Tools including allocation methodologies and system, dynamic pricing, dynamic partner routing, and partner re-activation tools among others.
• Enterprise Solutions : You’ll help Porter’s enterprise customers achieve delivery excellence. You’ll build tools for contract management, fleet management, fleet and route optimisation tools, alerting and monitoring tools, and analytics suite among others.

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 

Qualifications & Responsibilities 

• Strong hands-on experience with Java; full-stack development
• Designs, codes, tests, debug, and documents software, and enhance existing components to ensure that software meets business needs
• Deploy and maintain Applications/Systems
• Work with other software engineers for one or more Agile scrum teams assigned to work on the project · Contribute to the design and architecture to enable secure, scalable, and maintainable software and should be able to clearly articulate the implications of design/architectural decisions, issues, and plans to technology leadership
• Develop reusable patterns and encourage innovation that will enhance team velocity · Collaborate on the design with other team members and product owners, both inside and outside the scrum team
• Estimate engineering work effort for the engineering team and effectively identify and prioritize the high impact tasks
• Conduct design and code reviews to ensure code developed meets coding best practices guidelines, unit testing, security, and scalability and maintainability guidelines
• Drive a quality mindset within the team

Skills: 

• 2+ years of full Software Development Life Cycle experience
• 2+ years of experience working as a full-stack java developer
• 1+ years of web development with AngularJS
• Experience or familiarity with technologies such as WSDL, REST and/or SOAP web services, XML, JBoss, Adobe CQ5 DAM, HTML5, CSS3, Bootstrap, Hibernate, Spring.

• Bachelor’s or master’s degree in Computer Engineering, Computer Science, Computer Applications, Mathematics, Statistics, or related technical field. Relevant experience of at least 3 years in lieu of above if from a different stream of education.

• Well-versed in and 3+ hands-on demonstrable experience with: ▪ Stream & Batch Big Data Pipeline Processing using Apache Spark and/or Apache Flink.
  ▪ Distributed Cloud Native Computing including Server less Functions
  ▪ Relational, Object Store, Document, Graph, etc. Database Design & Implementation
  ▪ Micro services Architecture, API Modeling, Design, & Programming

• 3+ years of hands-on development experience in Apache Spark using Scala and/or Java.

• Ability to write executable code for Services using Spark RDD, Spark SQL, Structured Streaming, Spark MLLib, etc. with deep technical understanding of Spark Processing Framework.

• In-depth knowledge of standard programming languages such as Scala and/or Java.

• 3+ years of hands-on development experience in one or more libraries & frameworks such as Apache Kafka, Akka, Apache Storm, Apache Nifi, Zookeeper, Hadoop ecosystem (i.e., HDFS, YARN, MapReduce, Oozie & Hive), etc.; extra points if you can demonstrate your knowledge with working examples.

• 3+ years of hands-on development experience in one or more Relational and NoSQL datastores such as PostgreSQL, Cassandra, HBase, MongoDB, DynamoDB, Elastic Search, Neo4J, etc.

• Practical knowledge of distributed systems involving partitioning, bucketing, CAP theorem, replication, horizontal scaling, etc.

• Passion for distilling large volumes of data, analyze performance, scalability, and capacity performance issues in Big Data Platforms.

• Ability to clearly distinguish system and Spark Job performances and perform spark performance tuning and resource optimization.

• Perform benchmarking/stress tests and document the best practices for different applications.

• Proactively work with tenants on improving the overall performance and ensure the system is resilient, and scalable.

• Good understanding of Virtualization & Containerization; must demonstrate experience in technologies such as Kubernetes, Istio, Docker, OpenShift, Anthos, Oracle VirtualBox, Vagrant, etc.

• Well-versed with demonstrable working experience with API Management, API Gateway, Service Mesh, Identity & Access Management, Data Protection & Encryption.

  Hands-on experience with demonstrable working experience with DevOps tools and platforms viz., Jira, GIT, Jenkins, Code Quality & Security Plugins, Maven, Artifactory, Terraform, Ansible/Chef/Puppet, Spinnaker, etc.

• Well-versed in AWS and/or Azure or and/or Google Cloud; must demonstrate experience in at least FIVE (5) services offered under AWS and/or Azure or and/or Google Cloud in any categories: Compute or Storage, Database, Networking & Content Delivery, Management & Governance, Analytics, Security, Identity, & Compliance (or) equivalent demonstrable Cloud Platform experience.

• Good understanding of Storage, Networks and Storage Networking basics which will enable you to work in a Cloud environment.

• Good understanding of Network, Data, and Application Security basics which will enable you to work in a Cloud as well as Business Applications / API services environment.

We are seeking talented, motivated engineers who will be part of a dynamic global team delivering and supporting technology infrastructure to meet the growth needs of the business. 

As a Product Support Engineer, you will collaborate with the Engineering, Product and Support teams to ensure the designed product and service is fully operational with streamlined processes and procedures for addressing reported bugs and anomalies. Production Support Engineers will take ownership of resolving product issues through its life cycle and communication to multiple stakeholders. 

This is a programming role which requires a good understanding of Java along with solid debugging skills so complex workflows can be debugged and solved. You will own the code you push to production

To be successful, you must be an excellent team player and self motivated person who can carry out duties with minimal supervision.

Skills you need to have:

• A good understanding of SQL

• An understanding of Java and Java design patterns

• L4 support

• Good debugging and problem solving skills

• Excellent communication

Bonus Skills:

• An understanding of SpringBoot and ORM's
  
  

Requirements :

- 3+ years of professional software development experience

- 2+ years of object-oriented Java/J2EE hands-on development

- Spring (MVC, IOP/DI, REST, Security) & Hibernate/Spring

- REST web services

- Anyone of the messaging solutions like Kafka, RabbitMQ

Desirables :

- SQL, No SQL concepts

- Experience of Redis or/and Mongo DB

- Agile methodology

- Experience leading or working with cross geography teams

- Unix, shell scripting & Build Systems

Bonus :

- Microservice design and development experience

- Android application development experience

- Experience in performance optimization is an added advantage

- Full SDLC experience (requirements gathering, architecture, development, QA, etc.)

Responsibilities :

- You will be working with the Supply Chain Management team building a leading eCommerce platform for Asian markets

- Order Promising system, promising the order delivery promise date to customer by applying the constraints on current resource availability across different steps in the supply chain. This system needs to scale for thousands of requests per minute with few million seconds of response time

- Warehouse and Inventory Management system, this system needs to scale to processing huge number of orders across different warehouse.

- Transportation and Logistics Management, involves planning and delivery of huge number orders to end customer. This system has the workflows to manage first mile, line haul and last mile delivery to customer

- Inventory Planning, helps in tracking different selling behaviours of the items and triggers / helps planners to replenish, promote, markdown or place inventory at right place to cut down the on hand inventory requirements

- You will be actively involved during the entire technology development lifecycle. Responsibilities will include all aspects from design, coding review, coding, unit testing, end user feedback cycle changes and manging and scaling the system in production.

- Primary role in leading software development teams

- The customized solutions that you will be architecting and developing will also require knowledge and experience with spring / Hibernate, SOAP / REST, microservices and SQL.

- Ability to learn new technologies quickly and willingness to read and digest large existing source code and take ownership on complex component or subsystem to drive improvements and re-architecture

- Work with a team of amazing developers and designers involved in the design and development of global platforms

- Invent and prototype new features, build, test and ship them to customers as SaaS, cloud-based or hosted product platforms

- Drive the implementation of new technologies that improve our ability to build great customers products.

- Participate in a fun, open learning environment with great benefits and smart talented folks that represent among the best globally.

Qualification :