Proof is a high-growth startup transforming legal tech with a cutting-edge platform trusted by thousands of law firms across the U.S.
As we continue to scale, we’re looking for a Senior Mobile Engineer to own and help drive the evolution of our React Native applications.
If you thrive in fast-paced environments, love solving complex technical challenges, and are passionate about building high-performance mobile experiences, this role is for you.
What You’ll Do- Lead the architecture, development, and optimization of Proof's React Native mobile applications.
- Contribute to backend development, building and maintaining APIs, services, and database integrations that power our mobile apps.
- Collaborate closely with engineers, product managers, and designers to create seamless, high-impact user experiences across the full stack.
- Optimize app performance, identifying and resolving bottlenecks, memory issues, and platform-specific challenges on both frontend and backend.
- Implement best practices in mobile and backend engineering, conducting thorough code reviews and mentoring team members.
- Stay ahead of the curve by researching and integrating emerging technologies to improve our mobile and backend stack.
- Develop and maintain reusable components, libraries, and API endpoints for future use.
- Ensure security best practices across the stack, including secure storage, authentication mechanisms, and API security.
- Utilize modern state management solutions such as Redux, Zustand, or Recoil.
- 5+ years of software development experience, with 2-3+ years focused on React Native or other mobile frameworks.
- Strong fullstack capabilities with experience in backend technologies (Node.js, Python, or similar) and database systems (PostgreSQL, MongoDB, etc.).
- Expertise in mobile architecture, performance optimization, and platform-specific development (iOS & Android).
- Strong proficiency in JavaScript & TypeScript, with experience integrating native modules and building RESTful APIs.
- A product-focused mindset, with a deep understanding of UX, engagement, and performance across the entire application stack.
- Experience with RESTful APIs, GraphQL (nice to have), and backend performance optimization.
- Familiarity with mobile CI/CD pipelines, automated testing frameworks, and app store submission processes.
- Experience with push notifications, deep linking, and background services.
- Knowledge of Firebase, Fastlane, and OTA update solutions.
- A self-starter who thrives in an agile, high-growth environment with excellent communication and collaboration skills.
- Experience with Expo Application Services (EAS).
- Background in scaling mobile applications and backend services.
- Experience mentoring engineers or leading technical initiatives.
- Knowledge of native iOS (Swift) or Android (Kotlin) development.
- Strong understanding of GraphQL and Apollo Client.
- Experience with cloud platforms (AWS, GCP, Azure) and containerization (Docker, Kubernetes).
- Familiarity with microservices architecture and event-driven systems.
- Full-time, remote role (Canada-based)
- Competitive salary: $120,000 - $160,000 CAD
- Flexible time off & holidays to support work-life balance
- Comprehensive benefits, including healthcare, dental, life, and long-term disability
- Top-tier equipment & tools to set you up for success
If you’re excited about shaping the future of legal tech and building world-class mobile experiences, we’d love to hear from you!
Top Skills
What We Do
Proof is revolutionizing service of process.
Proof is a legal technology company that instantly connects law firms with independent process servers nationwide. Law firms can create electronic serve requests 24/7, receive live updates, see mapped verification of all attempts, and connect directly to servers in real time.
Proof’s technology provides electronic time and date stamped proof that your serve was performed successfully plus a notarized affidavit from the server.
Proof offers 1, 3 or 7 day service nationwide as well as internationally.
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