Frontend Engineer - PolySign - San Francisco

PolySign Senior Front End Engineer

As a Senior Frontend Engineer at PolySign you will help design and build the mobile and and web site applications that will provide the gateway for the PolySign cryptocurrency custody platform using React Native and React. You will assist in designing the user experience, as well as implementing and connecting to our back end services.

In this position you will work on a small team with other top talent with a significant impact on design, architecture and direction. You will interface with and work directly with the back end and cloud services teams as well as Product Management to help launch our platform.


What you’ll do:

  • Design and build the PolySign front ends, including mobile and web applications, working in conjunction with back end teams to produce a world-class Fintech service
  • Create intuitive, simple and effective designs via wireframe and mockup tools, working directly with Product Management, and then follow through with implementation.
  • Build quality in, delivering significant unit, integration and system tests along with your code
  • Write developer documentation, reference implementations, wireframes/mock-ups and other educational content as needed
  • As a secondary objective, assist the other teams directly with code review, design and implementation as needed

What we are looking for:

We’re looking for passionate, professional software engineers who enjoy doing things the right way. The ideal candidate will have a deep understanding of Javascript, React Native and React, as well as user experience design, code security, quality and sustainability. Experience with Python and microservices will be useful to provide the depth we are looking for in this position. As a software professional, you understand the importance of coding clean, estimating, taking deadlines seriously, and interfacing well with other team members and teams.

Required Skills:

  • 3+ years experience building enterprise grade mobile and web applications
  • Deep knowledge of Javascript and both React Native and React
  • Extensive experience with:
    • User eXperience design
    • Unit and system testing
    • Software security concepts and best practices
  • Track record of creating intuitive, effective and simple front end designs and implementations for both mobile and web
  • Track record of writing high quality, sustainable, testable code using best software development practices
  • Strong sense of software craftsmanship, professionalism and responsibility
  • Understanding of Agile estimating and planning methods, and a record of estimating and delivering to schedule
  • BS in computer science or related field, or equivalent experience

 Bonus Skills:

  • Knowledge of Python and Python libraries
  • Functional/object-oriented programming concepts and design patterns
  • Microservice architectures
  • SQL and NoSQL
  • Experience with electronic financial exchanges and markets
  • Experience with cryptography, particularly digital currency 

Key Technologies:

  • Front End: Javascript, React and React Native, Redux, Jest, Enzyme, Webpack
  • Backend: Python, Node, postgresql, websockets, ZeroMQ, Docker
  • OS: Linux
First application date:


Are you sure you want to withdraw this application?

Saving changes
Saving changes