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Capital 33

Front-end Mobile Engineer

Capital 33
Romania · Full-time · Entry

We're looking for a Front-end Mobile Engineer to build the client-facing mobile experience for our C33 debt lending platform. You'll own the mobile application end-to-end — from real-time dashboards and credit score displays to loan application flows and document uploads. This is a greenfield opportunity to shape how businesses interact with intelligent capital from their phones.


Key Responsibilities

  • Build and maintain the C33 mobile application using React Native
  • Develop responsive, performant UI components for financial dashboards, credit scores, and loan management
  • Implement real-time data updates via WebSockets and Server Sent Events for live portfolio and credit monitoring
  • Build secure authentication flows, biometric login, and document capture/upload features
  • Integrate with back-end APIs for loan applications, payment tracking, and notifications
  • Ensure accessibility, offline support, and cross-platform consistency (iOS and Android)
  • Collaborate with designers to translate financial data into clear, intuitive mobile interfaces
  • Implement push notifications, in-app messaging, and alert systems
  • Optimize app performance, reduce load times, and manage app store deployment pipelines


Required Qualifications

  • 5+ years of mobile development experience with React Native
  • Strong proficiency in TypeScript/JavaScript
  • Experience building and shipping production mobile apps on both iOS and Android
  • Solid understanding of mobile UI/UX patterns, navigation, and state management
  • Experience consuming RESTful APIs and handling real-time data (WebSockets)
  • Familiarity with mobile security best practices (secure storage, certificate pinning, biometric auth)
  • Understanding of CI/CD for mobile
  • Experience with responsive design and cross-device testing


Nice to Have

  • Experience building FinTech or banking mobile applications
  • Familiarity with data visualization libraries for mobile (charts, graphs, dashboards)
  • Knowledge of Cloudflare Pages and edge deployment
  • Experience with push notification services and in-app messaging
  • Background in document scanning, OCR, or camera-based features
  • Understanding of financial compliance requirements for mobile apps
  • Experience with animation libraries and micro-interactions
  • Familiarity with accessibility standards (WCAG) in mobile contexts


Tech Stack Highlights

  • Mobile: React Native, TypeScript
  • Real-time: WebSockets
  • Monitoring: New Relic, Sentry
  • Security: Auth0, JWT, OAuth 2.0, Biometric Auth


What We Offer

  • A competitive and motivating income that recognizes and values your contributions.
  • Opportunity to work on cutting-edge AI and FinTech challenges
  • Flexible work schedule to promote work-life balance and accommodate your personal needs.
  • Embrace a non-corporate and cozy work environment, where collaboration and creativity flourish.
  • Modern tech stack with freedom to explore new technologies
  • Collaborative environment
  • Regular team events and offsites
  • Ample opportunities for professional growth and development, empowering you to reach new heights in your career.


Interview Process

  1. Initial screening (20 minutes)
  2. Technical test (90 minutes)
  3. Cultural fit interview with leadership (45 minutes)
  4. Reference checks and offer


How to Apply

Send your CV and a brief note about why you're excited to work in FinTech to [email protected]

Please include:

  • Links to your GitHub/GitLab profile or app store listings
  • Examples of mobile apps you've built and shipped
  • Your experience with our tech stack
  • What interests you most about FinTech and mobile experiences


About Capital 33

Capital 33 is a next-generation merchant bank focused on two core services: capital raising and direct lending for mid-market and large enterprises. We support every stage of corporate growth—from day-to-day working-capital needs to multi-year investment programs—leveraging deep expertise in structured finance, syndicated loans, private debt, and project finance. We're building the future of FinTech by combining cutting-edge artificial intelligence with deep financial expertise to provide startups with the capital they need to grow.


Capital 33 is an equal opportunity employer committed to building a diverse and inclusive team. We welcome applications from all qualified candidates regardless of race, gender, age, religion, identity, or experience.

Key Skills

Ranked by relevance

react responsive ios artificial intelligence data visualization responsive design react native restful apis cloudflare animation storage server oauth cicd ai ui
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Posted
Jun 13, 2026
Type
Full-time
Level
Entry
Location
Bucharest
Company
Capital 33

Industries

Investment Banking

Categories

Engineering Information Technology

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