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.

Position Overview: We are looking for a senior developer who must be capable of building services using modern microservices architecture with NodeJS & serverless frameworks. Should have strong knowledge of ObjectOriented Concepts, and Node. Js frameworks like loopback, RDBMS, and microservice patterns. The candidate should be comfortable with application coding based on design and specifications, and also be comfortable working with JSON and RESTful services. The candidate must be a top-notch developer committed to keeping learning new things and becoming an integral part of and fostering growth within our development team.

Roles & Responsibilities:

• Developing and maintaining the backend systems that support the application
• Designing and implementing APIs and Microservices architecture to handle the application workload
• Developing and optimizing queries for RDBMS (MySQL) to manage data and ensure performance and scalability
• Managing and deploying the application on AWS using Lambda, ECS and other related services
• Collaborating with front-end developers to ensure smooth communication between front-end and back-end systems and back-end systems
• Writing clean, neat and reusable code that follows coding standards and best practices.
• Participating in code reviews and ensuring that coding standards are maintained
• Troubleshooting and debugging issues that arise in production environments
• Optimizing the application for performance, scalability, and security
• Continuously learning and staying up-to-date with the latest technologies and best practices in software development
• Documenting technical specifications, processes, and system design

•Hands on experience in Object oriented programming

•Hands on experience in Java, SpringBoot (min 2 years) or kafka or Cassandra or MongoDB

•Experience with developing/enhancing applications connecting to different Databases : Oracle/MySQL/Cassandra/MongoDB

•Strong knowledge of common Data structures and algorithms and when to use them.

•Experience in Xpath or XML or REST or JSON or protobuff

• Experience with software version control (such as git)

•Experience in working in an agile environment such as Scrum.

Preferable:

•Experience in public cloud PaaS (AWS, GCP, Azure)

•Real time stream data handling (Kafka, Kinesis

Requirements:

• Energetic self-starter, with a desire to work in a startup environment.
• Proficient in advanced Java programming skills.
• Expert in Application development cloud/on premise end to end. Middle layer, DB layer.
• Nice to have understanding on MQ and DB
• Good hands on in Complex Event Processing systems.
• Solved scale and performance issues while dealing with huge sets of data. Pre compute or data aggregation frameworks to achieve good response time.
• Real world experience working with large datasets and NoSQL database technologies
• Experience of debugging applications running on Unix like systems (e.g. Ubuntu, CentOS)
• Experience developing RESTful APIs for complex data sets
• Knowledge of container based development & deployment (e.g. Dockers, rkt)
• Expertise in software security domain, a plus

Preferred qualifications:

• 3-7 years of relevant work experience in business application development/implementation with strong understanding of Microservice Architecture.
• Very Strong in Core Java (OOP, Collections, Threads, Regular Expressions, Exception handling)
• Must have strong experience in software design and development and familiar with technologies - Java, Java-J2EE, JSP, Spring Boot, Spring Cloud, Spring Securities, Hibernate, Ajax, REST API, Microservices, Angular etc
• Strong knowledge of Queuing frameworks like ActiveMQ, RabbitMQ, Kafka etc and Caching frameworks like Redis, Hazelcastetc
• Strong understanding of 12 Factor Apps and Cloud Native fundamentals and design patterns
• Good knowledge on coding standards, design patterns, unit testing, Junit, Mockito
• Good to have experience with Docker&Kubernetes and ability to configure and run CI/CD pipelines
• Good knowledge of database SQL / NoSQLand trade-off among multiple DB technologies
• Experience implementing, customizing and/or integrating third-party applications within business enterprise software.
• Understand software implementation lifecycle (e.g., analyze, design, build, test, implement, support).
• Excellent communication and analytical skills and a demonstrable bias toward action.
• Good documentation skills to create Technology related Documents
• Hands on with AWS and/or Azure cloud

Responsibilities:

• Design, deploy and build solutions, with custom front ends (web, mobile) and backend services that automate business processes in Java Techstacks with Microservice architecture.
• Coordinate with tech leads and software engineers working on related deliverables
• Work closely with analysts and business process owners to translate business requirements into technical solutions.
• Create database schema and optimize data handling and storage
• Learn, diagnose and implement features and bug fixes, Implement debugging techniques and ability to find root causes of problems
• Mentor Junior team members, Provide technical expertise to product or project team
• Maintain highest levels of development practices including: technical design, solution development, systems configuration, test documentation/execution, issue identification and resolution, and writing clean, modular and self-sustaining code, with repeatable quality and predictability.
• Produce highly usable systems that are high performance, easy to maintain and engineered to meet business needs
• Communicate ideas and develop strategy through presentations, demonstrations and specifications
• Assist the product or project manager in creation of functional and technical documents

We are looking for a highly motivated senior developer with at least 3+ years of strong hands-on experience in Java to join our startup. You would be playing pivotal role in contributing to the initial tech stack. You would be further responsible for designing and implementing product requirements that are highly usable, scalable, extensible and maintainable. You should be comfortable on working across different technologies/frameworks that we work on - Microservices, Java, Spring, Spring Boot, MySQL, Kubernetes, AWS.

Responsibilities and Duties:

• Design and build scalable REST APIs on Spring Boot
• Develop, test, tune for performance and deploy microservices
• Collaborate with the team, optimize and refactor the back-end architecture
• Maintain high standards of quality for code, documentation and other deliverables
• Active cross-team coordination would be expected
• Architecture and tech stack discussions to optimize for increasing server load
• DevOps tasks along with AWS features exploration

What are we looking for?

• Strong 3+ year experience in Core Java & backend technologies
• Good working knowledge of design patterns & OOAD
• Excellent analytical and problem-solving skills
• The skills that we consider: Java, MySQL/RDS, Spring/ Play, Maven, Redis, Kafka/SQS, Elasticsearch, AWS
• Experience with designing, implementing and deploying microservices
• Previously worked in a startup

• Must worked on Spring Boot as an individual contributor.
• Develop a distributed and scalable solution for high-performance financial solutions
• Design, code, test, debug, and document programs as well as support activities for the corporate systems architecture
• Develop tools for performance tracking, monitoring, and reporting on the suite of server-side applications
• Perform and manage stages of the SLDC and participate in the systems review with Project Lead/Manager
• Should have knowledge on Cloud applications preferably on AWS
• Devops with Jenkins, Shellscripting
• Must have experience / knowledge in Cluster Management Frameworks , Spark, Kafka,
• Elastic Search, Docker and database, build-and-test (preferred).
• Demonstrate skills in problem-solving and decision-making
• Experience with Test Driven Development using TestNG/Junit testing framework

• Minimum of 3+ years of experience with server-side core java development
• Hand-on experience in Micro Services with Spring Boot and use of tools like Sonar Qube, Jenkins, AWS.
• Test methodologies and testing tools e.g. JUnit.
• Shell scripting to handle basic scripting
• Able to work independently and produce high-quality solutions.
• Excellent team player and strong interpersonal skills.
• Participating in code reviews
• Knowledge in cloud and DevOps will be plus

• Basic knowledge of Oracle Forms and reports - (Must)
• Good experience on SQL*Loader.
• Should Knowledge on Agile / Scrum.
• Handled errors using Exception Handling extensively for the ease of debugging and displaying the error messages in the application.
• Using SQL developer tool we debugged the code and unit test
• Knowledge of oracle programming
• MySQL, Oracle,
• Knowledge of Unix platform
• PostgreSQL
• advance database knowledge.
• Writing PL/SQL and PL/MySQL
• Coding support
• Debugging & Project module management
• Deployment and fine-tuning as per team lead.