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Frontend Engineer - React Native (External)

Remote: 
Full Remote
Contract: 
Full time
Experience: 
Mid-level (2-5 years)
Work from: 
Poland, Portugal, Denmark, United Kingdom, California (USA), Florida (USA), Illinois (USA), United States

Offer summary

Qualifications:

3+ years in frontend development, 1-2 years focused on React Native, Proficiency in JavaScript/TypeScript, Solid understanding of mobile UI/UX design.

Key responsabilities:

  • Develop and optimize mobile applications
  • Integrate blockchain functionalities and payment features
Serotonin logo
Serotonin Marketing & Advertising Startup https://serotonin.co/
11 - 50 Employees
About Serotonin
Serotonin is a breakthrough marketing firm and product studio for transformative technologies. We bring breakthrough technologies to market and builds ecosystems around them. With a team of former executives from ConsenSys, Chainlink, Bridgewater Associates, General Assembly, and more, Serotonin partners with top businesses and entrepreneurs on brand positioning, business partnerships, media relations, content, product marketing, and go-to-market strategy. We combine expertise in financial services, digital assets, and decentralized tech with data-driven methodology to ensure our partners’ marketing and PR is executed flawlessly, driving step-function growth.
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Job description

Our client is a cutting-edge company focused on revolutionizing global payments by building a scalable, zero-fee payment platform secured by Bitcoin. Their innovative technology enables fast, secure, and cost-effective digital transactions, with the potential to reshape how the world interacts with money.

We’re looking for a Mid-Level Frontend Engineer with expertise in React Native to join their team. In this role, you’ll build intuitive and responsive mobile applications that connect users to our cutting-edge payment platform, redefining the way the world transacts.

If you’re excited about joining a dynamic and purpose-driven environment where your ideas can shape the future, we’d love to meet you. Together, we can redefine what’s possible in the world of digital connectivity and data management.

Key Responsibilities:
  • Develop, maintain, and optimize mobile applications using React Native for iOS and Android platforms.
  • Integrate blockchain-based functionalities and payment features into mobile applications.
  • Collaborate with cross-functional teams to design, develop, and deploy new features.
  • Optimize applications for performance, scalability, and cross-browser compatibility.
  • Integrate with blockchain technologies and APIs to deliver real-time data and interactions.
  • Participate in code reviews and contribute to maintaining high development standards.
  • Stay informed about emerging trends and best practices in frontend development and apply them to enhance the platform.

    • Key Requirements:
  • 3+ years of experience in frontend development, with at least 1–2 years focused on React Native.
  • Proficiency in JavaScript/TypeScript and experience building and deploying mobile apps for both iOS and Android.
  • Solid understanding of mobile UI/UX design principles and responsive design.
  • Familiarity with state management libraries like Redux or Context API.
  • Experience integrating APIs, including RESTful and WebSocket communication.
  • Knowledge of testing frameworks and tools for React Native applications.
  • Strong problem-solving skills and attention to detail.
  • Excellent communication and teamwork abilities.

    • Preferred Qualifications
  • Experience with blockchain or fintech applications.
  • Familiarity with Web3 libraries and integrating decentralized features.
  • Knowledge of native modules and bridging in React Native.
  • Background in performance optimization for mobile applications.
  • Contributions to open-source projects or personal mobile app development experience.

    • What We Offer
  • Competitive salary and equity options.
  • Flexible working hours and remote-friendly environment.
  • The chance to work on cutting-edge technology with a talented, passionate team.
  • Opportunities for professional growth and learning.

    • Required profile

    Experience

    Level of experience: Mid-level (2-5 years)
    Industry :
    Marketing & Advertising
    Spoken language(s):
    English
    Check out the description to know which languages are mandatory.

    Hard Skills

    TypeScriptMobile Application DevelopmentReact NativeJavaScript (Programming Language)Front End DesignAutomated Testing FrameworkReact ReduxUI/UX StrategyAPI ManagementIOS DevelopmentWebSocketAndroid DevelopmentRESTful APIFinancial Technology (FinTech)BlockchainPerformance ImprovementWeb 3.0Software Modules

    Other Skills

    • Teamwork
    • Detail Oriented
    • Communication
    • Problem Solving
    Are you interested?

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