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Senior Mobile Engineer (React Native)

  • Toronto, ON, Canada

Full-time

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Job details

Job type
Full-time
Apply by
Experience
6+ years of professional software engineering experience, including 3+ years building and shipping production React Native apps in TypeScript.
Posting language
English
Posted

Original job description

Build a better way to borrow
Fig is a Canadian fintech making personal lending simpler, faster, and more accessible for Canadians. We offer fully digital personal loans, helping customers apply in minutes and receive decisions quickly, without paperwork, branch visits, or long delays .

Since launching in 2023, we’ve grown quickly and earned recognition including Consumer Lender of the Year and FinTech Startup of the Year. We’re proud to be consistently ranked among Canada’s Best Workplaces, with a 4.8/5 Trustpilot rating from our customers.

Supported by Fairstone Bank of Canada and Ontario Teachers’ Pension Plan, we combine deep lending expertise with the agility of a startup.

About The Role
Fig is expanding beyond lending and building a new generation of digital banking products. We're hiring a Senior Mobile Engineer, reporting to the Engineering Manager of our digital banking team, to build and own the Fig banking app on iOS and Android.

You're a React Native specialist with deep experience shipping production apps, from developer tooling through to release pipelines. You're comfortable across the stack in TypeScript, having built backend services and designed APIs for mobile clients.

Our core stack includes TypeScript, NestJS, React Native (Expo), React, PostgreSQL, and AWS. We use AI for software development and are moving toward more agentic ways of working. We want engineers who'll help shape how we get there.

We're a small team, so breadth matters. You'll work closely with Product, Design, Risk, Compliance, and Operations, and help set the mobile patterns, tooling, and quality bar as we grow.

We're a small team, so breadth matters. You'll work closely with our backend engineers, our CISO, and our Risk and Compliance teams, and help set the standards and paved roads other engineers build on as we grow.

What You’ll Do
  • Design, build, and ship features in our React Native and Expo app, from onboarding and account management to money movement.
  • Own the mobile release process end-to-end: EAS builds, App Store and Google Play submissions, OTA updates, feature flags, and staged rollouts.
  • Improve the mobile developer experience: local tooling, CI pipelines, and build times.
  • Drive app quality: performance, startup time, stability, crash-free rate, and accessibility.
  • Implement security-critical mobile capabilities such as biometric authentication, secure storage, device integrity checks, and session management.
  • Shape the APIs the app relies on, and contribute to them directly alongside backend engineers.
  • Partner with Design to build a shared component library and a polished, consistent user experience.
  • Use AI tools and agents to accelerate how we build, test, and ship.
  • Raise the bar through code review, testing practices, and mentoring other engineers.


You’ll succeed here if you have
  • 6+ years of professional software engineering experience, including 3+ years building and shipping production React Native apps in TypeScript.
  • Hands-on experience with Expo (EAS Build/Submit, OTA updates) and owning App Store and Google Play releases.
  • Strong React fundamentals and experience diagnosing and fixing React Native performance issues, from re-renders to native-layer bottlenecks.
  • Daily use of AI coding tools, with the judgment to review and validate what they produce.
  • The ability to make pragmatic technical decisions and communicate trade-offs clearly.
  • Experience using AI tools in operations work such as incident investigation, with the judgment to validate their output and keep their access tightly scoped.
  • The ability to make pragmatic technical decisions and communicate trade-offs clearly.


Nice to have

  • NestJS and PostgreSQL.
  • Designing or building a backend-for-frontend (BFF) or API gateway layer.
  • Fintech, banking, payments, or other regulated environments.
  • Mobile security practices such as certificate pinning, jailbreak/root detection, and secure token storage.
  • Native module development in Swift or Kotlin (including Expo Modules).
  • Mobile testing frameworks such as Detox or Maestro, and monitoring tools such as Sentry.
  • Design systems, component libraries, and accessibility (WCAG).
  • Helping a team adopt agentic development workflows, including the context, guardrails, and review practices that make them work.
  • Experience building the backend services and APIs behind mobile apps, ideally in TypeScript and Node.js.


Why Fig
  • Make an impact: Rare opportunity to join early and help shape the future direction of a fast-growing fintech company.
  • High ownership: Take on a high-impact role with direct exposure to senior leadership and company-building initiatives.
  • Strong culture: Work in a team that values impact, accountability, curiosity, and collaboration.
  • Hybrid work environment: Balance of remote and in-office work (currently one day a week in Toronto), while maintaining strong collaboration.
  • Competitive compensation: Expected base salary range between $150,000 - $170,000, plus the opportunity to earn an annual incentive bonus tied to performance
  • Retirement savings program: Employer matching to support your long-term financial goals.
  • Comprehensive benefits: Medical, dental, and vision group insurance, as well as health and wellness spending accounts.
  • Time off: Generous vacation and wellness time to support rest and recharge.
  • Parental support: Parental leave top-up to support your growing family.
  • Growth and Development: Continuing education stipend to support your professional development.


Our commitment to diversity, equity and inclusion

Fig is an equal opportunity employer committed to building a diverse and inclusive team.

We welcome applications from people of all backgrounds and do not discriminate based on race, religion, culture, sexual orientation, gender identity, or disability.

We’re focused on creating an environment where everyone feels respected, supported, and able to bring their full selves to work. We also provide accommodations throughout the recruitment process. If you need support, just let us know.

Next steps

We appreciate your interest in joining Fig. Our team will review applications and contact candidates selected to move forward in the process.

AI disclosure

We may use AI tools to support parts of our hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our team but do not replace human judgment, and all hiring decisions are ultimately made by people.

If you have questions about how your information is handled, feel free to reach out to us.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
More about this job

Responsibilities

Build and ship features for Fig’s React Native and Expo banking app, and own its release process, developer tooling, performance, stability, accessibility, and security. Shape mobile APIs and shared components, collaborate across product and engineering teams, and improve testing, code review, and AI-assisted development practices.

Requirements

Candidates need at least six years of professional software engineering experience, including at least three years building and shipping production React Native apps in TypeScript, plus hands-on Expo experience and ownership of iOS and Android releases. They should have strong React fundamentals, mobile performance troubleshooting experience, daily use of AI coding tools, and sound technical judgment; backend, fintech, mobile security, and testing experience are advantageous.

Skills

  • React Native
  • TypeScript
  • Expo
  • Mobile App Development
  • Mobile Release Management
  • React
  • Mobile Performance Optimization
  • Mobile Security
  • API Design
  • Backend Development
  • CI/CD
  • Automated Testing
  • Accessibility
  • AI-Assisted Development
  • Mentoring

Benefits

  • Medical Insurance
  • Dental Insurance
  • Vision Insurance
  • Health and Wellness Spending Accounts
  • Vacation and Wellness Time
  • Parental Leave Top-Up
  • Continuing Education Stipend
  • Annual Performance Incentive Bonus

Visa sponsorship

Not detected in the job text

Categories

  • Software
  • Technology
  • Engineering
  • Finance & Accounting
  • Security & Safety

Keywords

  • TypeScript
  • NestJS
  • React Native
  • Expo
  • EAS Build
  • EAS Submit
  • React
  • PostgreSQL
  • AWS
  • iOS
  • Android
  • App Store
  • Google Play
  • OTA Updates
  • Feature Flags
  • CI/CD
  • Biometric Authentication
  • Secure Storage
  • Device Integrity Checks
  • Session Management
  • Backend-for-Frontend
  • API Gateway
  • Mobile Security
  • Swift
  • Kotlin
  • Expo Modules
  • Detox
  • Maestro
  • Sentry
  • WCAG

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