Careers at Jonajo

Sr. React JS + Node JS Engineer

Type: Fulltime 


  • Build solutions using your strong background in distributed systems, and large-scale database systems.
  • Research, analyze, design, develop and test the solutions that are appropriate for the business and technology strategies.
  • Participate in design discussions, code reviews, and project-related team meetings.
  • Develop technical & domain expertise and apply it to solving product challenges.
  • Improve performance and scalability of applications.
  • RESTFUL API Development.
  • Maintain and enhance portals and web applications.
  • Analyzing and fixing current production issues.
  • Diagnose functional issues, report bugs, and take ownership of issue resolution.
  • Primarily develop features for and maintain JavaScript applications.
  • Light work to enhance, maintain, and create microservices in Java.
  • Design, build, and unit test software in a collaborative environment
  • Write clear, efficient, scalable, and maintainable code.
  • Participate in design and code reviews.
  • Participate regularly in an Agile team environment and schedule.
  • Collaborate with UI/UX designers, Product Managers, and other Front-End Developers to create user-friendly features and applications.


  • The ideal candidate thrives in a fast-paced start-up environment (including dealing with ambiguity), be self-driven, and possesses high integrity and accountability.
  • 5+ years experience building successful products as a Full-Stack Engineer.
  • Expert knowledge of Python, Node.js, React.js, and Java.
  • Experience with JavaScript application frameworks (AngularJS, Node.js, React.js).
  • Experience with JavaScript unit testing (Mocha, Jasmine).
  • Experience with HTML best practices.
  • Experience with CSS processors.
  • Experience with Agile/ Scrum and Test Driven Development practices.
  • Experience with version control (Git, SVN).
  • Experience with microservice development (Node.js, React.js, Python).
  • Must be a doer.

Bonus Points:

  • Full-stack development experience with knowledge of both backend systems (Linux, databases, application servers) and frontend systems (HTML, CSS, JavaScript).
  • Deep knowledge of cloud services such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform.
  • Excellent understanding of full web development cycles.
  • Solid knowledge of responsive web design, JSON, third-party libraries, and APIs.
  • Databases: MySQL, MSSql, MongoDB, Hadoop etc.
  • Design: UX (User Experience Design), UI (User Interface Design), IA
  • (Information Architecture).
  • Experience in NodeJS with an understanding of isomorphic JavaScript.
  • React Experience.
  • Strong experience in Back-End development.
  • Strong CS fundamentals.
  • Knowledgeable in building loosely coupled, highly cohesive code.
  • Experience designing APIs for consistency, simplicity, and extensibility.
  • Agile experience with a strong emphasis on rapid prototyping and rigorous A/B testing.

Last Updated:
February 2, 2022


English Level:
Client Facing (TOEFL 610+)
Anywhere in Mexico

Years of Experience:

Apply Here

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