Create Profile Get Hired (Beta)

Senior iOS Developer

Alarm Full Time

Job Description

CoinFlip is a leading fintech company powered by cryptocurrency. Believing everyone deserves to participate in the new digital economy, the company operates one of the world’s largest networks of cryptocurrency ATMs — with over 4,000 active kiosks — as well as an over-the-counter trading desk. In 2022, CoinFlip became an international company by expanding into Canada, and launched CoinFlip Ventures, a new initiative designed to support start-up companies. 

CoinFlip placed No. 60 on the 2021 Inc. 5000 list of the nation’s fastest-growing private companies. CoinFlip was also named the 2021 and 2022 #1 fastest-growing company in Chicago by Crain’s Business. 

As our growth trajectory continues, we’re looking to quickly expand all of our teams. It’s an exciting time to join CoinFlip as we’re pursuing additional business lines and continued international expansion to further cement us as a leading financial technology company. 

This talented and innovative Senior iOS Developer will be responsible for bringing our mobile ideas to life. In this role, this individual will build a high performance mobile application using cutting edge technologies as well as adjust and expand app capabilities over time. This is an exciting opportunity to work both with a team and independently in an exciting environment and industry. This individual will help us on our mission to accelerate financial inclusion through global access to cryptocurrency.


  • Design and develop mobile app features
  • User-centric development of high-quality code that is maintainable and testable
  • Work closely with development and product teams on core features
  • Develop interactive UI to deliver great user experiences
  • Participate in full application lifecycle (concept, design, build, deploy, test, and release to app store)
  • Qualifications:

  • BS or equivalent degree in Computer Science required, MS preferred
  • Minimum of 4 years of experience as an iOS Developer
  • Experience working with automated testing on the iOS platform
  • Experience with Continuous Integration (CI) and its use in testing, building and deploying iOS apps
  • Experience with Swift and/or Functional programming
  • Writes code with the end-user in mind - appreciates how getting lots of small details right leads to a great user experience
  • Knowledge of all things cryptocurrency preferred
  • Nice to Have:

  • Basic knowledge of cryptocurrency and blockchains
  • General passion and knowledge of fintech and crypto
  • CoinFlip


    CoinFlip is a leading financial services platform focused on the digital economy. Headquartered in Chicago, CoinFlip operates the world’s largest network of cryptocurrency ATMs by volume and an over-the-counter trading desk, giving the world quick, easy, and secure access to the benefits of cryptocurrency.

    CoinFlip placed No. 60 on the 2021 Inc. 5000 list, making it the top-ranked cryptocurrency company in the most prestigious ranking of the nation’s fastest-growing private companies. CoinFlip was also named the 2021 #1 fastest-growing company in Chicago by Crain’s and was awarded the 2021 Silver Stevie ® Award for Customer Service.

    With a 5-year growth rate of 1,715,091.9%, the company is looking to quickly expand its current headcount across all departments. It’s an exciting time to join CoinFlip as it plans to add additional business lines, expand internationally, and cement itself as a leading fintech company.

    Similar Jobs

    Senior Backend Developer, Node.js / Express

    Full Time Full Time
    Dec 08, 2022

    Senior Backend Developer, Node.js / Express

    Full Time Full Time
    Dec 08, 2022

    Senior Developer (Java)

    Jump Crypto
    Hong Kong
    Full Time Full Time
    Dec 25, 2022

    Developer Relations Engineer

    Full Time Full Time
    Dec 16, 2022

    Database Developer/ Database Adminstrator

    Jump Crypto
    Hong Kong
    Full Time Full Time
    Dec 25, 2022

    Senior Technology GRC Analyst

    New York City
    Full Time Full Time
    Dec 08, 2022

    Senior Manager, Growth Marketing (Core)

    Ava Labs
    Full Time Full Time
    Dec 07, 2022
    You Might Also Be Interested In The Job Below

    Senior Backend Developer, Node.js / Express

    Alarm Full Time

    Job Description


    We are ClubRare - The World's first community-centered Physical NFT marketplace for collectors. We connect the Real-world and the Metaverse. We are a community for people who trade the things we love.

    We are a fully remote company with no fixed headquarters. The team is distributed throughout the world - we form an inclusive network across a variety of locations, lifestyles, and backgrounds.

    Our culture is driven by empathy, integrity, strategic thinking, innovation, leadership, and the shared desire to perform at our peak. While our differences make us adaptable and versatile, it's our shared values that give us the strength and drive to become the open metaverse for collectors.

    What’s in It for You?

    • Be part of building a great project and make a real impact in your career.
    • Work flexible hours from anywhere and be part of a team that is driven by strong values and a clear shared vision.
    • Directly shape the future of a completely new model for cryptocurrency and blockchain applications.
    • Challenge your skills and push your creative limits working with the latest technologies & systems.
    • Play an active role in one of the most significant technological innovations in human history.
    • Receive a competitive salary paid in crypto.

    Your Impact

    We are looking for a Backend Developer who will join our team of blockchain developers to design and implement our products. Our ideal engineer is someone that thrives in a fast-paced start-up environment and is able to adapt to the ever changing industry. You will work with your team to – implement functionality, design our system, maintain the health of our code, and continue to grow as an engineer with the support of senior members of your team.


    • Develop Product and related project backend development, configuration, and maintenance around NFT Utilities, Backend Integration to Frontend.
    • Build core infrastructure software, instrument them for performance, and optimize for throughput
    • Write, test, and deploy smart contracts and build the system design around the product
    • Build core backend modules such as authentication, session, queues and schedulers
    • Writing unit and end-to-end test scripts for required modules/packages
    • Integrate and consume other services/APIs.

    Tech Stack:

    Languages: TypeScript

    BE: Node.js / Express

    FE: React

    DB: MongoDB

    Cloud: AW


    • 3+ years experience in Solidity (Defi smart contracts), Web3, Ethereum and API Integration on DApps
    • 5-10 years of experience in backend technologies such as Java, Python or Node.js (prefered)
    • Knowledge of Ethereum/Polygon/others
    • You've designed, built, scaled, and maintained production services, and know-how to compose a service-oriented product and integrate decentralized technologies, infrastructure, and data systems
    • Knowledge and interest in crypto projects covering areas such as DeFi, NFTs, and DAOs.

    Learn more about us at

    We are committed to creating a diverse environment and are proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, age, veteran status, or other characteristics.