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Full Stack Developer (React UI developer)
Irvine, California  |  Onsite
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Applied on October 20, 2021
Job Id #50839 Posted September 23, 2021


  • The Full Stack Developer position encompasses the front-end and back-end development of software applications.
  • Responsibilities include structuring multi-threaded back ends of different RESTful applications, which manage program logic and server database interaction, and building Graphic User Interfaces that will interact with these applications.
  • The FSD is required to understand the interactions between these two interfaces and possess the variety of software skills needed to work on both.
  • Candidates with a strong desire to learn a multitude of technologies and programming languages with a can-do attitude will thrive in this role.
  • The position requires problem-solvers able to work in a fast-paced, collaborative office environment alongside other engineers and developers.

What You'll Be Doing:

  • Developing and discussing the architecture of Full Stack applications with Java/J2EE backend and React JS
  • Backend technologies include Spring Boot, Kafka, ML, OpenAPI 3 (Swagger), Redis, Oracle, MySQL and MongoDB
  • Using your strong knowledge of basic and advanced Java on client facing applications and portals
  • Collaborating using your love for design patterns & principles to develop elegant solutions for internally-facing and externally-facing platforms
  • Using your ability for developing using data structures and algorithms, React with Next.js, Material UI, TypeScript and JavaScript
  • Writing Unit, Functional and Load Tests for Back-ends and Front-ends, using jUnit, Mockito, JaCoCo, Jest, React Testing Library, jMeter
  • Condensing complex requirements into specific and measurable test objectives
  • Working with compliance frameworks such as HIPAA

Experience and Skill You Need:

  • 5+ years direct work experience as a Full Stack Developer, Front-end Developer of Back-end Developer, but comfortable to explore Front-end and/or Back-end when required
  • Experience with or exposure to DevOps (Jenkins or other CI solutions/Azure/AWS/GCP)
  • Experience working with virtualization/containerization tools such as Docker, Red Hat Openshift, Kubernetes or Vagrant
  • Proficiency with fundamental front end languages such as HTML, CSS and JavaScript.
  • Proficiency with Node.js and JavaScript frameworks such as React, Angular, Aurelia, Ionic, Vue.js or other PWA library.
  • Proficiency with Java;
  • Strong SQL skills and familiarity with relational database technologies such as MySQL, PostgreSQL, Microsoft SQL Server or Oracle
  • Hands on experience in Spring, Spring Boot/Spring Data (JDBC, JPA, Hibernate or other ORM)
  • Experience working both independently and in a team-oriented, collaborative environment is essential.
  • Degree in Computer Science, or a related field

Good to have:

  • Experience of Oracle EBS
  • Experience with Material UI
  • Proficiency with Atlassian Tools (Jira, Confluence, etc.) or other Agile/Backlog management tools
  • Proficiency with server side languages such as Kotlin, Python, Ruby, PHP and .NET languages (C#, F#, VB.NET)
  • Experience with Unit, Functional and Load Testing

Skills/attributes Preferred

  • Java, Spring Boot, Kafka, ML, Oracle or MySQL

Working Time:

  • 9am-5pm

Interview Process:

  • How many rounds? 2
  • Video, phone, or in person? Video, Phone
  • How technical will the interviews be? 1 hour technical

Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact

All applicants applying must be legally authorized to work in the country of employment.


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You are considered to have a disability if you have a physical or mental impairment or medical condition that substantially limits a major life activity, or if you have a history or record of such an impairment or medical condition.

Horizontal is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.


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