React JS Developer in Sunnyvale, CA at Vaco

Date Posted: 9/24/2019

Job Snapshot

Job Description

Full Stack Engineer


Hands-on design and development for customer facing applications that require high availability, concurrency, multi-tenancy, high scalability for a large global user base Work as full stack engineer on different layers of the product. Build new features using TDD (Test driven development) and Domain driven design in DevOps environment with continuous integration, regression and deployment, while maintaining the existing system and codebase.

Ensure feature quality by extensive testing covering different aspects such as unit, integration, functional, performance and regression with a focus towards automation Responsible for development to deployment including troubleshooting and production fixes Fine-tune system at different layers for optimal performance at scale; use system profiling tools and stress testing to find and fix weak spots


Expert knowledge of computer science, with strong competencies in data structures, algorithms, and software design.

Must have strong skills in enterprise Java technology stack including JEE, Spring Boot, JPA/Spring Data, REST APIs, Swagger, maven, Hibernate ORM, JUnit, stress testing tools such as JMeter/Load Runner.

Experience with micro-services architecture, Docker eco-system and API first approach with hands-on expertise in developing rest APIs supporting multiple versions Hands-on experience in server-side JS technologies such as NodeJS is a big plus.

Experience in JavaScript, React.js and its core principles, React.js workflows (Redux), webpack, Babel, NPM is a plus.

Experience in UI development with HTML5, CSS3, CSS Pre-processors like SASS/LESS, Semantic HTML, Web Automation with Selenium, Unit testing with Jest.

Experience with relational databases (transactional and non-transactional), database architecture and distributed cache & transaction management.

Knowledge of NO-SQL technologies like Cassandra, MongoDB is a big plus Should have good knowledge of Agile/Scrum, continuous integration and deployment.


BS/MS degree or equivalent with 7+ Years of overall experience in web application design and development.