Java Developer

Java Developer – Job Description Wissen Technology is now hiring for a 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. - 4 to 7 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 clientfacing 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.

About the Role 

As a result of our rapid growth, we are looking for a Java Backend Engineer to join our existing Cloud Engineering team and take the lead in the design and development of several key initiatives of our existing Miko3 product line as well as our new product development initiatives. 

Responsibilities 

•  Designing, developing and maintaining core system features, services and engines
• Collaborating with a cross functional team of the backend, Mobile application, AI, signal processing, robotics Engineers, Design, Content, and Linguistic Team to realize the requirements of a conversational social robotics platform which includes investigate design approaches, prototype new technology, and evaluate technical feasibility
• Ensure the developed backend infrastructure is optimized for scale and responsiveness 
• Ensure best practices in design, development, security, monitoring, logging, and DevOps adhere to the execution of the project. 
• Introducing new ideas, products, features by keeping track of the latest developments and industry trends 
• Operating in an Agile/Scrum environment to deliver high quality software against aggressive schedules

Requirements 

• Proficiency in distributed application development lifecycle (concepts of authentication/authorization, security, session management, load balancing, API gateway), programming techniques and tools (application of tested, proven development paradigms)  
• Proficiency in working on Linux based Operating system. 
• Proficiency in at least one server-side programming language like Java. Additional languages like Python and PHP are a plus 
• Proficiency in at least one server-side framework like Servlets, Spring, java spark (Java). 
• Proficient in using ORM/Data access frameworks like Hibernate,JPA with spring or other server-side frameworks. 
• Proficiency in at least one data serialization framework: Apache Thrift, Google ProtoBuffs, Apache Avro,Google Json,JackSon etc. 
• Proficiency in at least one of inter process communication frameworks WebSocket's, RPC, message queues, custom HTTP libraries/frameworks ( kryonet, RxJava ), etc.  
• Proficiency in multithreaded programming and Concurrency concepts (Threads, Thread Pools, Futures, asynchronous programming). 
• Experience defining system architectures and exploring technical feasibility tradeoffs (architecture, design patterns, reliability and scaling)
• Experience developing cloud software services and an understanding of design for scalability, performance and reliability
• Good understanding of networking and communication protocols, and proficiency in identification CPU, memory & I/O bottlenecks, solve read & write-heavy workloads. 
• Proficiency is concepts of monolithic and microservice architectural paradigms. 
• Proficiency in working on at least one of cloud hosting platforms like Amazon AWS, Google Cloud, Azure etc.   
• Proficiency in at least one of database SQL, NO-SQL, Graph databases like MySQL, MongoDB, Orientdb 
• Proficiency in at least one of testing frameworks or tools JMeter, Locusts, Taurus 
• Proficiency in at least one RPC communication framework: Apache Thrift, GRPC is an added plus 
• Proficiency in asynchronous libraries (RxJava), frameworks (Akka),Play,Vertx is an added plus 
• Proficiency in functional programming ( Scala ) languages is an added plus 
• Proficiency in working with NoSQL/graph databases is an added plus 
• Proficient understanding of code versioning tools, such as Git is an added plus 
• Working Knowledge of tools for server, application metrics logging and monitoring and is a plus Monit, ELK, graylog is an added plus 
• Working Knowledge of DevOps containerization utilities like Ansible, Salt, Puppet is an added plus 
• Working Knowledge of DevOps containerization technologies like Docker, LXD is an added plus  
• Working Knowledge of container orchestration platform like Kubernetes is an added plus 

• Strong Java programming skills
• Minimum of 5 years practical software development experience
• Robust object-oriented design pattern knowledge and implementation experience using Java;
• Python a plus
• Advanced knowledge and experience developing and working with relational databases such as
• Sybase and MySQL
• Experience with multi-tier application architecture and high performance distributed and in-
• memory caching solutions
• Strong understanding of data modeling techniques
• Strong foundation in SDLC best practices including test driven development, unit testing
• discipline, agile development, and CI/CD strategies

About the Role

The Engineering team in Bangalore, India is building products for the Martial Arts

fans across the world. As part of the engineering team, you would be expected to have

deep technology expertise with a passion for building highly scalable products.

This is a unique opportunity where you can impact the lives of people across 150+

countries!

Responsibilities

Own architecture, design, development, and implementation of different

modules/features of the services

Design, develop, deploy and support web applications.

Discover opportunities for performance improvements

Recommend ways to improve reliability, efficiency and code quality

Focus on continuous delivery and reducing complexity

Carry out code reviews and manage pull requests

Build applications based on micro-services architecture.

Requirements

Overall 1~3 years of experience in Backend development.

B. E/B. Tech in CS or equivalent streams from institute of repute (IITs, NITs, BITs,

IIITs or equivalent)

Strong object oriented design skills & knowledge of design patterns

Experience designing & developing distributed systems involving multiple web

services, databases (both SQL and NoSQL), caches, queues, etc. taking into

consideration scalability, availability, fault tolerance, consistency, etc. of the

overall system

Well-aware of and enforces development best practices: Unit Tests, Code Reviews,

Integration Tests, CI/CD, Monitoring, Alerting, etc.

· 3+ years java development experience with JSE/JEE, Java based Micro-services framework and implementation, Spring framework, Hibernate framework, SQL etc

· Hands on experience on Spring boot & Microservices .

· Strong knowledge of micro-service logging, monitoring, debugging and testing

· Implementations experience of micro-service integration, packaging, build automation and deployment.

· Object Oriented analysis and design using common design patterns.

Fullstack Developer/Architect/Programmer:

1. 8-10 years experience as Developer/Programmer.
2. Should have an expertise in Core Java, Java & J2ee
3. Built MVC based Web Application Using JSP/Struts framework
4. Experience in Webservices-Restful
5. Experience in Application Servers like Tomcat and WebLogic
6. Good Knowledge of implementing JMS messaging services
7. Good knowledge of HTML5,CSS and JavaScript – Angular.js,Bootstrap, React.js
8. Should have skills in Spring 3.x, Hibernate, Weblogic 12c Implementation

What do Microsoft, The Gap, Royal Bank of Scotland, Lockheed Martin, and top Open Source projects like JQuery have in common? They all use BrowserStack, as do over 25,000 other customers!

BrowserStack is the industry-leading, cloud web and mobile testing platform that enables developers to test their websites and apps on different operating systems and mobile devices. Since launching in 2011, our mission has been bold yet simple: To be the testing infrastructure for the internet. 6 years and billions of tests later, we are ready for our next phase of hyper growth. Bootstrapped for the first 6 years, we continue to be profitable since inception with a near exponential https://workable.com/nr?l=https%3A%2F%2Fwww.browserstack.com%2Fgrowth">growth in customers around the globe. Recently, we closed $50M in Series A funding from Accel

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
• Researching new technologies and adapt them to BrowserStack requirements
• Own and commit to all your work, and be accountable for your results
• Using and understanding code from Open Source
• Teaching others how to use new software
• Willing to learn new programming languages and databases
• Able to write efficient SQL queries and design schemas for relational databases
• Participate in a culture of code reviews, writing tech specs, and collaborating closely with other people (no lone wolves)
• Produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration
• Develop multi-tier scalable, high-volume performing, and reliable user-centric applications that operate 24x7
• Scale distributed applications, make architectural trade-offs applying synchronous and asynchronous design patterns, write code, and deliver with speediness and quality

• Good experience in at least one scripting language: Ruby, Nodejs, Python, AppleScript, Unix shell or similar
• Familiarity with one compiled language: C, Java, Go or similar
• Good knowledge of operating systems and networking concepts
• Reasonable knowledge of Windows and/or Linux operating systems
• Ability to work on Windows and Linux platform below the application layer, including file systems, kernels, custom installations, shell scripting, internal APIs, etc
• Aggressive problem diagnosis and creative problem solving skills
• Startup mentality, high willingness to learn, and hardworking
• Experience of 3-6 years