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Posted June 16, 2026
Nexo

Senior React Developer

Bulgaria / Sofia, BG / Plovdiv, BG Full Time

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.