Java Backend Developer

Job Description

?????????????Ability to communicate extremely well. This is absolutely critical for the job since our client is remote, and we are using Scrum.?????????????Absolutely excellent understanding of the Java programming language and object oriented principles.?????????????Absolutely excellent understanding of relational databases, SQL statements, and JPA.?????????????Absolutely excellent understanding of the HTTP protocol and of how REST APIs sit upon that. Absolutely excellent communication skills, and ability to influence teams by example.?????????????Excellent understanding of key concepts in Java distributed web applications, especially concurrency, exception handling, session management, multi-tier design, and building of API?s.?????????????Strong understanding of the software engineering lifecycle, and tools to support it.?????????????Strong understanding of automated builds and continuous integration, and supporting tools, e.g. git, gradle, Maven, Jenkins.?????????????Strong understanding of software engineering best practices and processes for teams, e.g. Scrum or Kanban.?????????????Excellent understanding and deep familiarity based on hands-on usage of concepts such as inversion of control, dependency injection, beans, bean lifecycle, design patterns (Factory, Proxy, MVC, etc.), auto wiring, and bean validation.?????????????Strong understanding and experience in the design of reliable, high-performance, easily maintainable applications.?????????????Strong understanding and proven experience in writing tests at different levels, unit, integration, and otherwise.?????????????Strong understanding and awareness of memory usage considerations in design and implementation.?????????????Excellent understanding of how to use spring and Swagger to develop REST-based applications.?????????????Highly polished abilities to develop and maintain complex Spring-based applications.?????????????Strong understanding of how to administer and configure any leading Java application server, notably Tomcat, Wildfly, or Glassfish.?????????????Highly polished abilities to use a leading Java IDE, e.g. Eclipse, IntelliJ.?????????????Strong understanding of the official Oracle specifications for servlets, filters, and other web artifacts.?????????????Strong understanding and ability to produce scalable applications using Spring MVC and Spring Rest.?????????????Strong understanding and ability to support persistence using Spring Data and JPA.?????????????Good understanding of SQL databases, PostgreSQL in particular. Excellent ability to create complex SQL queries when needed.?????????????Good understanding of caching frameworks such as Redis and memcached.?????????????Familiarity with NoSQL databases and their appropriateness for different functions, from full-fledged backend to session caching.?????????????Good understanding of single sign on concepts, using different protocols such as SAML, OAuth, and Open Connect in particular?????????????Understanding of performance and reliability impacts of design decisions, and ability to design metrics and test applications against those metrics.?????????????Good experience and understanding of git or any other distributed version control system (mercurial, bazaar...). Should be intimately familiar with cloning, branching, staging, committing, pushing, and more.?????????????Ability to suggest and use proven, popular open source technologies to enhance the productivity of the team and quality of the applications.?????????????Good understanding of the Scrum methodology. Should understand the responsibilities of the Product Owner and Development team inside and out.?????????????Good understanding of how to use Jira and Bit bucket in support of issue tracking and continuous integration and delivery.?????????????Excellent English skills, both written and spoken.

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