Senior React Developer

Posted 3 Days Ago
Be an Early Applicant
Hiring Remotely in Bulgaria
Remote
Senior level
Blockchain • Fintech
The Role
Build and maintain user-facing web and mobile applications used by millions. Ensure technical feasibility of UI/UX, optimize existing features, maintain well-tested CI-backed codebases, and promote best practices. Work in small autonomous teams with short release cycles and daily use of AI tools (Anthropic Claude / Claude Code) to accelerate development and production systems.
Summary Generated by Built In

Driving the next generation of wealth.

Digital assets are redefining how wealth is created, used, and transferred. Since 2018 at Nexo, we have been building the future model of financial wealth - dynamic, accessible, and designed for a new generation of forward-thinking investors.

But technology alone doesn’t drive progress. People do.

We are a team of builders, strategists, analysts, creatives, and operators united by a shared mindset: advancement. We move fast, think long term, and take ownership. We challenge ideas, not people. We value clarity over noise and impact over optics.

What makes Nexo different?

We shape industry trends. We rethink how wealth works and build solutions that reflect that belief.

That requires a certain kind of person.

You will thrive here when you think independently and act decisively, take ownership without waiting for permission, and care deeply about quality, long-term value, and disciplined execution. The people who succeed at Nexo bring analytical depth, sound judgment, and resilience - but also curiosity and the drive to keep improving.

This is an environment for people who want to lead, create, and elevate what already exists. If building what’s next excites you, you’ll feel at home at Nexo.

Official website: nexo.com


Your role:

  • Develop user-facing Web & Mobile applications used by over 5 million users worldwide.
  • Ensure the technical feasibility of UI/UX designs.
  • Support and optimize existing code and features for Web & Mobile client applications and internal administrative tools.
  • Maintain a well-tested codebase with continuous integration and coverage reporting.
  • Share your knowledge and help your team evolve best practices.
  • Work in small, autonomous teams with short release cycles.
  • AI is at the center of what these teams do - and it's also how we build everything else. Our primary stack is Anthropic's Claude, used through Claude Code for day-to-day development and as a core model provider for the systems we ship. We expect daily, fluent use of AI across the lifecycle, with sound judgment about when to rely on it and how to verify its output. We're actively expanding our agentic and AI-assisted workflows, and we want people who will push this further.

What makes you stand out:

  •  Proficiency in JS, ТS.
  •  5+ years experience with React & Redux.
  •  2+ years experience with React-Native and mobile development.
  •  Very good understanding of modern tooling such as Webpack, Babel, Jest, Enzyme, Metro.
  •  Highly adept at design patterns and software architecture principles, technical problem-solving.
  • Ability to manage and prioritize a diverse set of tasks with overlapping timelines.
  • Strong attention to detail and commitment to delegated tasks and responsibilities.
  • Ability to work effectively in a fluid, fast-paced environment and meet appointed deadlines.
  • Communicate complex concepts in simple terms to a non-technical audience.
  •  Excellent understanding of User Experience (UX) design patterns including Responsive, Adaptive and Mobile First user interface design, Accessibility.

    Nexo benefits:

    • Competitive and rewarding remuneration package.
    • Annual performance-based bonuses.
    • Comprehensive Learning Hub for continuous growth.
    • Hybrid work model: primarily office-based with scheduled home office flexibility.
    • A dynamic and inspiring environment with cutting-edge projects.
    • Career development opportunities in a global leader driving the next generation of wealth.
    • Customizable personal benefits package.
    • Wellness benefits include additional health insurance, all-access sports cards, team-wide sports activities, standing desks, and blue light glasses.
    • Free parking with a designated space, free electric bikes, and public transportation cards.
    • Fresh fruits, snacks, and a well-stocked office kitchen.
    • Regular department team buildings and company-wide team buildings.

    Skills Required

    • Proficiency in JavaScript and TypeScript
    • 5+ years experience with React and Redux
    • 2+ years experience with React Native and mobile development
    • Very good understanding of Webpack, Babel, Jest, Enzyme, and Metro
    • Experience maintaining a well-tested codebase with continuous integration and coverage reporting
    • Daily, fluent use of AI tooling (Anthropic Claude / Claude Code) and experience integrating AI-assisted workflows
    • Strong design patterns, software architecture principles, and technical problem-solving
    • Excellent understanding of UX design patterns including Responsive, Adaptive and Mobile-First design and Accessibility
    • Ability to manage and prioritize diverse tasks with overlapping timelines in a fast-paced environment
    • Ability to communicate complex technical concepts clearly to non-technical audiences
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    The Company
    HQ: Georgetown, KY
    372 Employees
    Year Founded: 2017

    What We Do

    Nexo is the world's leading regulated institution for digital assets. The company’s mission is to maximize the value and utility of cryptocurrencies by offering tax-efficient Instant Crypto Credit Lines, a high-yield Earn Crypto Interest product, Send & Pay capabilities, and sophisticated trading & OTC services, all while providing the top-tier custodial insurance and military-grade security of the Nexo Wallet. Nexo manages assets for over 4М+ users across 200+ jurisdictions and has processed over $80 billion since its launch in 2018.

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