
JOB DESCRIPTION
Experience: 3-8 years
Wissen Technology is now hiring for a Java Developer - Mumbai 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. - 3-8 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.

About Wissen Technology
About
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.
With offices in 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
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.
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About the role:
We are seeking a highly motivated Senior Software Engineer with expertise in building scalable, extensible applications, identifying and addressing performance bottlenecks, collaborate with other team members to innovate current/new products; Identify, communicate and implement best practices for application engineering. Our engineering process is fully agile and has a really fast release cycles - which keeps our environment very energetic and fun.
What you’ll do:
- Architect, Design and build scalable applications.
- Work with Product Management teams to get maximum value out of existing data.
- Contribute to continual improvement by suggesting improvements software system.
- Ensure high scalability and performance
- You will advocate for good, clean, well-documented and performing code; define and follow standards and best practices for front-end development.
- Ability to deliver great results in an agile development
- Strong verbal and written communication skills
We’d love for you to have:
- Experience: 3-5 years of experience as a backend developer is required
- Education: B.Tech. in Computer Science from tier - 1 engineering colleges in India
- A self-starter who is passionate about problem solving across complex technology stack.
- Highly skilled back-end engineer using Object-Oriented programming preferably Java, exposure to open source libraries and frameworks.
- Strong knowledge and experience in REST based programming using Restlet framework.
- Ability and experience in evaluation and integration of third party systems and libraries.
- Experience in system architecture, data structures, algorithm design and their optimization.
- Passion for performance benchmarking and debugging.
- Strong knowledge of web standards (i.e. REST/SOAP) concepts
- Knowledge of version control (GIT) and databases (MySQL)
- Experience with the full software development lifecycle, design, develop, debug, document, and deliver (especially in a multiple location organization).
- Experience in Test-driven development.
- You have experience with two or more development languages preferably Java or Python and React, etc
- You can skillfully write high-quality, well-tested code and you are comfortable with Object-Oriented programming
- Comfortability with Agile methods, such as Extreme Programming (XP), Scrum and/or Kanban
- Bonus points if you have working knowledge of cloud technology such as AWS, Azure, Kubernetes and Docker
Key Responsibilities:
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
Skills Required:
- At least 3 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large scale social or location-based app.
Our client is the Health-tech initiative of India's largest business house. Started in 2015, it empowers healthcare providers and consumers in India. All healthcare monitoring services are made available through an app that will help connect doctors, hospitals, pharmacies, laboratories and consumers, enabling preventive and predictive healthcare. It helps the care-givers to track the entire patient journey from the initial appointment and maintaining their records, generating lab test reports to providing virtual consultation and home-care solutions. It is expected that this futuristic guide will strengthen doctor-patient relationship and enhance the in-clinic experience.
As the Java Developer, you will be responsible for developing cutting edge health-tech applications that include high scale transaction processing, intelligent bot based programs and data analytics.
What you will do:
- Building components for the company's advanced health tech platform using Java, Solr, SpringBoot, DialogFlow
- Communicating effectively in a cross-functional product development team and present ideas and solutions effectively
- Participating in technical planning and requirements gathering phases including design, code, test, troubleshoot, and document engineering software applications
- Developing the Code as per the requirements
- Working with product team and constructing the tech roadmap
- Designing, building and scaling the company's backend microservices
- Maintaining code integrity and organization
- Applying all quality requirements to make the code production ready
- Developing and deploying new features to facilitate related procedures and tools if necessary
- Developing documentation related to technical aspects and to facilitate current support, development, upgrades, or migrations
- Designing and building efficient, reusable, and reliable Java code
- Pro actively catching and fixing bugs, and providing support for the back end services
- Managing servers and infrastructure by keeping the lights on and refining the deployment architecture
What you need to have:
- Expert at hands on programming in JAVA and J2EE
- Must be from Product based companies (Should have developed Web Apps)
- Proven expertise in Java interfaces with MongoDB (or similar noSQL databases) as well as relational databases (mySQL, Postgres etc)
- Key contributor in atleast one 6+ months development project involving SpringBoot and Hibernate
- Strong understanding of application server infrastructure
- Good working knowledge of Maven based build systems
- Good understanding of build and deployment pipelines that involve ANT and Jenkins
- Proficient understanding of code versioning tools, such as Git or SVN
- Good knowledge of working on Rest APIs , Webservices
- Excellent problem-solving skills
- Hands on experience with Lucene/Solr
- Familiarity with DiagFlow based chat bot building
- Knowledge of NLP
- Learnt AI/ML systems
- Excellent interpersonal skills and the ability to build good working relationships.
- Must be self-motivated to prioritize and manage workload and meet critical project milestones and deadlines.
- Able to effectively collaborate with a team as well as take initiative and work independently to solve problems
hands on experience of 1-2 years in JAVA/ J2EE Technology and good understanding of MVC Architecture
● Strong programming skills in designing and implementation of multi-tier applications using web-based technologies like Spring MVC andSpring Boot.
● Knowledge in Spring Core such as Dependency Injection,Annotations and XML based Configurations.
● Knowledge in Spring JDBC & Spring Hibernate ORM.
● Good experience in developing applications with RESTFul Web Services.
● Knowledge in technologies like Apache Tomcat 7.0/8.0/8.5, Nginx
● Expertise in MySQL database technology
● Proficient at designing dynamic web applications using HTML5,
CSS3, JavaScript, jQuery, AJAX, JSON with responsive web applications using Bootstrap.
● Knowledge in AngularJS, Angular 2+ practices in commonly used
modules and creating reusable Components, Pipes and Services.
● Experienced in version control tools like GIT and ticket tracking platforms like Redmine, Backlog, etc.
We are looking for passionate engineers and researchers that want to contribute in this exciting and fast moving field of Deep Learning and Research.
- Designing, building, and maintaining efficient, reusable, and reliable Ruby and Rails code.
- Helping maintain code quality, organization and automation Identifying bottlenecks and bugs and devising solutions to these problems
- Ensuring Integration of data storage solutions (may include databases, key-value stores, blob stores, etc)
- Need immediate joiners
- B.Tech/ BE in Computer Science, Computer Engineering equivalent Good knowledge of ruby language
- Good knowledge of Rails Framework along with other common libraries such as RSpec and Resque
- Good knowledge of Mysql database Good knowledge of data structures, algorithms, oops
- Good technical knowledge of computer fundamentals
- Excellent knowledge of scrapers/ web spiders Expert-level object-oriented analysis and design skills
- Good understanding of the syntax of Ruby and its nuances
- Good understanding of server-side templating languages (such as Liquid, Slim, etc depending on your technology stack)
- Good understanding of server-side CSS preprocessors (such as Sass, based on project requirements)
- Able to implement automated testing platforms and unit tests
- Proficient understanding of code versioning tools (e.g. Git, Mercurial or SVN)
- Familiarity with development aiding tools (such as Bower, Bundler, Rake, etc)








