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Open nowPosted 8 hours ago

Senior React / React Native Engineer

N-iX131 open roles

Where
Ukraine
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Your applicationOpen nowSenior React / React Native EngineerN-iX · Ukraine

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The clock on this job

Early applications get read.

8.1% of postings close within 7 days. Measured by our own scanner across the market. N-iX postings stay open a median of 18 days.

Share of postings closed within
  1. 1.7%1 day
  2. 3.6%3 days
  3. 8.1%7 days
  4. 15.1%14 days
  5. 34.0%30 days
This job: posted 8 hours ago

N-iX median: 18 days open

The posting

Our client is a leading Canadian online brokerage and wealth management fintech. It provides retail investors with trading platforms, mobile apps and investment products, in a regulated financial environment. The Senior React / React Native Engineer will join one of the product pods in the Experience Platform engineering group. The role leans toward the client side: you will lead the design and delivery of React Native (mobile) and ReactJS (web) applications, and you will also build and maintain Node.js/TypeScript services and APIs behind them. Each pod owns its domain end to end, so engineers are expected to work across web, mobile and services.

Key Responsibilities:

  • Lead technical design and delivery of complex front-end features across React Native and ReactJS, documenting architectural trade-offs.
  • Build and maintain Node.js/TypeScript services and RESTful APIs that support the web and mobile clients.
  • Own cross-platform performance of your area: memory profiling, bundle size, render optimization and real-time data rendering.
  • Break down large, ambiguous problems into deliverable increments and sequence them with product partners.
  • Set and enforce engineering standards for code quality, testing, security, observability and operational readiness.
  • Maintain automated test suites and improve CI/CD pipelines and app release practices.
  • Mentor intermediate and junior developers through code reviews and pairing.
  • Partner with Product, UX, Enterprise Architecture and Security on scalable, resilient and compliant designs.
  • Take part in incident response and on-call rotations, and drive blameless post-incident reviews to closure.
  • Explore and adopt AI tools that improve developer productivity.

Required Qualifications:

  • 6+ years of experience building, shipping and operating production software.
  • 5+ years of hands-on experience with React Native (Expo or Bare) or ReactJS, and 1+ year with the other, including strong command of state management and component architecture.
  • 1+ years of commercial experience with Node.js and TypeScript, including building and consuming RESTful APIs.
  • Proven experience with RESTful APIs and microservices or service-oriented architectures, from the consuming or the building side.
  • Cloud-native experience (GCP preferred; AWS or Azure considered), CI/CD and containerized workloads.
  • Experience leading technical initiatives across several developers without formal authority.
  • Strong communication skills in English, able to explain technical trade-offs to engineering and cross-functional audiences.
  • Bachelor's degree in Computer Science, Software Engineering or a related field, or equivalent practical experience.
  • TBU: testing stack, monorepo tooling, mobile CI/CD and release stack, native module experience

Nice to Have:

  • Real-time data streaming (WebSockets, Kafka, Pub/Sub) or low-latency financial/trading systems.
  • Native iOS/Android exposure and native module integration.
  • Experience with AI-boosted tools like Claude Code
  • Domain experience in financial services, brokerage, trading or other regulated environments.
  • Knowledge of secure development practices, threat modeling or DevSecOps.
  • Experience building AI/ML-enabled features.
  • Angular experience.

We offer*:

  • Flexible working format - remote, office-based or flexible
  • A competitive salary and good compensation package
  • Personalized career growth
  • Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
  • Active tech communities with regular knowledge sharing
  • Education reimbursement
  • Memorable anniversary presents
  • Corporate events and team buildings
  • Other location-specific benefits

*not applicable for freelancers

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