This job has expired

This job posting is no longer active and is not accepting applications. Explore similar roles below!

Nexo
Posted 2mo ago

Senior React Developer

Nexo
Bulgaria or Sofia or Plovdiv
HybridFull Time
Responsibilities
  • developing applications
  • optimizing code
  • maintaining tests
Requirements
  • 5+ years React & Redux experience
  • 2+ years React Native
  • Proficiency with JS/TS
  • Webpack, Babel, Jest
  • Enzyme, Metro
  • Daily use of Anthropic Claude/Claude Code
  • Strong UX and architecture skills
Technical tools mentioned
JSTSReactReduxReact NativeWebpackBabelJestEnzymeMetroClaudeClaude Code

Job description

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 this team does — 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.

    About Nexo

    Provides digital asset lending and cryptocurrency wealth management services.

    Year founded
    2018
    Employees
    734
    Organization type
    Private
    Latest investment
    Raised $100.00M Funding Round (2024) — led by Arrington XRP Capital
    Subsidiaries
    Headquarters
    CH

    Similar jobs

    React Developer roles near Sofia, Sofia City Province
    1mo
    Save
    Mark Applied
    Hide
    Staff React/React Native Engineer
    Sofia or Spain or Bucharest or Berlin or Poland
    HybridFull Time
    Trading 212
    Trading 212: Mobile platform for commission-free stock and derivative trading.
    Lead frontend architecture across mobile and web; deep expertise in TypeScript, React Native/React/Next.js; experience mentoring engineers and building scalable, high-performance cross-platform frontends.
    TypeScript, React Native, React, Next.js, TanStack Query, Zustand, Redux/RTK, Swift, Kotlin, CI/CD, Reanimated, RNGH, WebSockets
    1w
    Save
    Mark Applied
    Hide
    React Developer
    Sofia, Sofia City Province, Bulgaria
    HybridFull Time
    flatexDEGIRO
    flatexDEGIRODeutsche Börse Xetra: FTK: Operates an online platform for retail securities trading.
    3+ YOE3+ years of front-end development experience; Informatics degree; React, TypeScript, ES6+, HTML5, CSS, RESTful APIs, WebSockets, GraphQL, and fluent English.
    React, TypeScript, ES6+, HTML5, CSS, RESTful APIs, WebSockets, GraphQL
    1w
    Save
    Mark Applied
    Hide
    Senior React Developer
    Sofia, Sofia City Province, Bulgaria
    OnsiteFull Time
    S&P Global
    S&P GlobalNYSE: SPGI: Provides financial data, analytics, and credit ratings worldwide.
    4+ YOERequires 4+ years of React development, JavaScript, TypeScript, HTML5, CSS3, API integration, Git, unit testing, debugging, performance optimization, and web security experience.
    React.js, Next.js, JavaScript, TypeScript, HTML5, CSS3, RESTful APIs, GraphQL, Apollo, Git, GitLab, Jest, RTL, Node.js, Storybook
    1w
    Save
    Mark Applied
    Hide
    Senior React Developer
    Sofia, Sofia City Province, Bulgaria
    OnsiteFull Time
    S&P Global
    S&P GlobalNYSE: SPGI: Provides independent credit ratings, market benchmarks, and financial analytics.
    4+ YOERequires 4+ years of React development, JavaScript, TypeScript, HTML5, CSS3, responsive design, APIs, GraphQL, Git, unit testing, debugging, and web performance and security expertise.
    React.js, Next.js, TypeScript, HTML5, CSS3, RESTful APIs, GraphQL, Apollo, Git, GitLab, Jest, RTL, Node.js, Storybook, PHP, Python
    1w
    Save
    Mark Applied
    Hide
    React & React Native Developer
    Sofia, Sofia City Province, Bulgaria
    HybridFull Time
    Fourth
    Fourth: Provider of end-to-end restaurant and hospitality management software.
    3+ YOERequires 3+ years of JavaScript experience and strong React, React Native, Git, HTML5, CSS3, SASS or LESS, and REST API skills.
    JavaScript, React, React Native, Git, GitHub, Bitbucket, Azure Repos, HTML5, CSS3, SASS, LESS, REST API
    2w
    Save
    Mark Applied
    Hide
    Senior React Native Developer (Trading Apps) - Relocation to Limassol, Cyprus
    Sofia, Sofia City Province, Bulgaria
    OnsiteFull Time
    FP Markets
    FP Markets: Provide online trading services for Forex and CFDs.
    Senior React Native and TypeScript experience, strong performance and memory optimization, mobile security, real-time socket networking, shipped mobile apps, debugging/profiling proficiency.
    React Native, TypeScript, Hermes, Fabric, TurboModules, JSI, Reanimated, Gesture Handler, React DevTools, Flipper, React Navigation, Jest, RN Testing Library, Detox, Maestro, EAS, Fastlane, CodePush, C++, Swift, Objective-C, Kotlin, Java, MT5 mobile SDK, TradingView
    2w
    Save
    Mark Applied
    Hide
    Senior React Native Engineer with Node.js - Tieto Tech Consulting (m/f/d)
    Sofia, Sofia City Province, Bulgaria
    HybridFull Time
    Tietoevry
    TietoevryNasdaq Helsinki: TIETO: A digital services and software providing IT solutions.
    5+ YOE5+ years JavaScript/TypeScript experience, 3+ years React Native, strong Node.js and REST API skills, Redux/Redux Toolkit experience, CI/CD and mobile deployment familiarity, excellent communication.
    React Native, Node.js, Redux, Redux Toolkit, JavaScript, TypeScript, RESTful APIs, Express, NestJS, Firebase, Sentry, App Store, Google Play, CI/CD, Bluetooth
    1mo
    Save
    Mark Applied
    Hide
    React Native Developer
    Sofia, Sofia City, Bulgaria
    HybridFull Time
    Flutter Entertainment
    Flutter EntertainmentNYSE: FLUT: Operates online sports betting and digital casino gaming platforms.
    2+ YOE2+ years mobile development experience with React Native and TypeScript, knowledge of Hooks/Context API and state management (Redux/Zustand), RESTful API integration, Git, unit/integration testing (Jest/RNTL), and English communication.
    React Native, TypeScript, JavaScript (ES6+), Hooks, Context API, Redux, Zustand, RESTful APIs, Git, GitHub, GitLab, Jest, React Native Testing Library, CI/CD, Firebase, App Store, Google Play, WebView
    This job has expired