Senior React Developer (Web3)

TL;DR

Senior React Developer (Web3): Developing user-facing Web and Mobile applications for over 5 million users with an accent on UI/UX feasibility and high-performance interfaces. Focus on integrating AI-assisted development workflows using Claude Code and maintaining a scalable, well-tested codebase.

Location: Hybrid (Sofia or Plovdiv, Bulgaria)

Company

A global leader in digital assets redefining wealth creation and management through dynamic and accessible financial models.

What you will do

• Develop and optimize user-facing Web and Mobile applications used by millions of users worldwide.
• Ensure the technical feasibility of UI/UX designs and implement accessibility standards.
• Support and optimize existing features for client applications and internal administrative tools.
• Maintain a well-tested codebase with continuous integration and coverage reporting.
• Collaborate within small, autonomous teams with short release cycles.
• Leverage AI tools (Claude Code) daily to evolve agentic and AI-assisted development workflows.

Requirements

• 5+ years of professional experience with React and Redux.
• 2+ years of experience with React-Native and mobile development.
• Proficiency in JavaScript and TypeScript.
• Strong understanding of modern tooling such as Webpack, Babel, Jest, Enzyme, and Metro.
• Expertise in UX design patterns including Responsive, Adaptive, and Mobile First design.
• Must be based in or able to work from Sofia or Plovdiv, Bulgaria.

Culture & Benefits

• Competitive remuneration package with annual performance-based bonuses.
• Hybrid work model with primarily office-based attendance and scheduled home office flexibility.
• Comprehensive Learning Hub for continuous professional growth.
• Wellness benefits including additional health insurance and all-access sports cards.
• Office perks: free parking, electric bikes, public transportation cards, and a well-stocked kitchen.
• Regular department and company-wide team-building activities.