Senior Software Engineer, API (Boston or New York)

  • Circle
  • Boston, MA
  • Apr 27, 2018

Job Description


Boston, USA

Circle is a global internet finance company, built on blockchain technology, powered by crypto assets, and dedicated to helping people everywhere create and share value.

We've already made sending money around the world free and easy using blockchain technology with Circle Pay. With Circle Invest, we're expanding our offerings with a cryptocurrency investment product, enabling anyone to buy and sell crypto assets. Through Circle Trade, we're market makers for the top crypto coins and offer OTC trading services. In March 2018, Circle acquired Poloniex, one of the world's leading token marketplaces.

As part of the product engineering team, you'll create and iterate upon product features that will shape the future of Circle's product. You will join a team of engineers and designers that share ideas and code that help us build apps that your friends and family love to use.

*This position has the option to be in Boston or New York

What you'll work on
    • Take the lead in developing product features from initial specs and API development, to the public release and announcement
    • Design and implement the APIs that Circle's iOS, Android and Web clients run on
    • Collaborate with a fun, passionate team to help craft solutions to problems using the latest technologies
    • Learn more about Circle's business domains while instructing others about development and design


What you'll bring to Circle
    • 10+ years of professional experience building/running an application in production using modern web technologies (Ruby on Rails, Flask or Node.js)
    • Experience working with SQL and NodeJS is desired
    • Desire to build and maintain the backbone of our system which powers our iOS, Android and Web clients
    • Real passion for writing beautiful, functional and well tested code
    • Interest in cryptocurrency, blockchain technology or social payments


Circle was founded in 2013 by internet entrepreneurs Jeremy Allaire and Sean Neville. We're backed by $140 million from investors including Jim Breyer (Facebook), Goldman Sachs, IDG Capital (Baidu, Tencent), General Catalyst (AirBnB, Snapchat) and Accel Partners, with offices in Boston, New York, San Francisco, Dublin, London and Hong Kong.

Check us out at circle.com and download Circle Pay & Circle Invest for iOS and Android today.

We are an equal opportunity employer and value diversity at Circle. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.