# React Native Engineer

**Company:** [ITRex Group](https://jobs.workable.com/companies/pP47J85vn36ZwYFte5eSkZ.md)
**Location:** Remote
**Workplace:** remote
**Employment type:** Full-time
**Department:** Delivery

[Apply for this job](https://jobs.workable.com/view/f54728b0-5bf2-4c82-a3ea-342cf8e10ec1)

## Description

### THE PLACE

ITRex - AI pioneers who build systems that actually work in the real world, not just in demos. We're 200+ people spread across the US and Europe, creating solutions for companies like P&G and Shutterstock. We keep it simple, build it right, and focus on what works.

### THE PEOPLE

We're the kind of people who don't ignore messages in Slack, who jump in to help when you're stuck on a problem, and who offer solutions instead of blame when things go sideways. We believe in openness, accountability, and having each other's backs. No office politics, no hidden agendas - just people who care about doing good work together and supporting each other to get there.

We are looking for Senior React Native Engineer to join our team!

**Your Responsibilities**

-   Architect, build, and maintain high-performance, scalable React Native applications for iOS and Android.
-   Collaborate with Product, Design, and Backend teams to define requirements and deliver new features.
-   Communicate and collaborate with external partners, including banks, SDK vendors, and 3rd-party providers, to support integrations, resolve issues, and ensure technical alignment.
-   Integrate and maintain third-party SDKs, native modules, and Web3/crypto libraries.
-   Implement Web3 functionality, including wallet features, signing, and smart contract interactions.
-   Ensure secure handling of sensitive data (private keys, seed phrases) and enforce mobile security best practices.
-   Ensure top-level application performance, responsiveness, and overall app quality.
-   Identify and resolve performance bottlenecks, defects, and reliability issues.
-   Implement and maintain comprehensive test coverage (unit, integration, E2E).
-   Work with CI/CD pipelines to support automated build, testing, and deployment processes.
-   Research, evaluate, and introduce new technologies and best practices to improve product quality and development efficiency.
-   Participate in the full application development lifecycle, from initial concept to production deployment.

## Requirements

**Our Expectations** 

**React Native & Mobile Development**

-   5+ years of experience in mobile development with a focus on React Native.
-   Deep understanding of React Native architecture, preferably also exposure to Fabric and TurboModules.
-   Proven ability to architect, build and maintain high-performance, scalable mobile applications.
-   Expertise in application performance optimization, debugging, and profiling.
-   Strong knowledge of TypeScript and experience enforcing strict typing practices.
-   Experience publishing and maintaining apps in App Store and Google Play.

**Processes**

-   Expertise in identifying, analyzing, and resolving application bottlenecks and performance issues.
-   Experience building and maintaining robust testing strategies (unit, integration, E2E).
-   Ability to research, evaluate, and introduce new technologies and best practices.
-   Strong understanding of mobile security principles, secure data storage, and anti-fraud mechanisms.
-   Experience operating in fast-paced environments and making informed decisions under uncertainty.
-   English: Upper-Intermediate or higher.

**Nice to have:**

**Blockchain & Web3**

-   Hands-on experience in crypto & blockchain development (crypto wallets, signing, transactions).
-   Strong understanding of Web3 technologies: WalletConnect, EVM networks, RPC, smart contract interaction.
-   Experience with secure key storage, seed phrase handling, encryption, private key management, and cryptography best practices.
-   Experience integrating complex SDKs/APIs, bridging native iOS/Android SDKs, and working with Web3/crypto libraries.
-   Understanding of ERC standards and token metadata structures

## Benefits

**What We Offer** 

**Why people stay**

First, the foundation:

-   Remote flexibility: Work where and how you work best - we trust you to deliver
-   Fair compensation: Competitive salary + benefits that matter (medical, wellness, learning)

Then, the growth:

-   Ownership opportunities: See a problem worth solving? Own it. We back smart risks over bureaucratic safety
-   AI enhancement: We leverage AI to make you faster and stronger - complementing your abilities, not replacing them
-   Learning investment: English classes, professional development, well-being support
-   Career progression: Real paths up, not just sideways shuffling

Finally, the people:

-   Responsive teammates: No ignored Slacks, no "not my problem" attitudes
-   Supportive culture: When you're stuck, people help. When things break, we fix them together
-   Human connections: Regular meetups, tech talks, and actual relationships beyond work