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 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.
-
Collaborate closely with backend engineers, product managers, and designers to create seamless, high-impact user experiences.
-
Optimize app performance, identifying and resolving bottlenecks, memory issues, and platform-specific challenges.
-
Implement best practices in mobile engineering, conducting thorough code reviews and mentoring team members.
-
Stay ahead of the curve by researching and integrating emerging technologies to improve our mobile stack.
-
Develop and maintain reusable components and libraries for future use.
-
Ensure security best practices in mobile development, including secure storage and authentication mechanisms.
-
Utilize modern state management solutions such as Redux, Zustand, or Recoil.
What You Bring
-
5+ years of mobile development experience, including 3+ years in React Native.
-
Expertise in mobile architecture, performance optimization, and platform-specific development (iOS & Android).
-
Strong proficiency in JavaScript & TypeScript, with experience integrating native modules.
-
A product-focused mindset, with a deep understanding of UX, engagement, and performance.
-
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.
Bonus Points
-
Experience with Expo Application Services (EAS).
-
Background in scaling mobile applications.
-
Experience mentoring engineers or leading technical initiatives.
-
Knowledge of native iOS (Swift) or Android (Kotlin) development.
-
Understanding of GraphQL and Apollo Client.
Why Join Proof?
-
Full-time, remote role (Canada-based).
-
Competitive salary: $120,000 - $150,000 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.
-
A strong engineering culture that values autonomy, ownership, and impact.
If you’re excited about shaping the future of legal tech and building world-class mobile experiences, we’d love to hear from you!
Other Jobs from Proof Technology
Full Stack Software Engineer (Remote)
Applications Engineer
Software Engineer, Frontend
Similar Jobs
Software Engineering Lead
Engineering Director, Mobile Applications
Lead Software Engineer
There are more than 50,000 engineering jobs:
Subscribe to membership and unlock all jobs
Engineering Jobs
60,000+ jobs from 4,500+ well-funded companies
Updated Daily
New jobs are added every day as companies post them
Refined Search
Use filters like skill, location, etc to narrow results
Become a member
🥳🥳🥳 452 happy customers and counting...
Overall, over 80% of customers chose to renew their subscriptions after the initial sign-up.
To try it out
For active job seekers
For those who are passive looking
Cancel anytime
Frequently Asked Questions
- We prioritize job seekers as our customers, unlike bigger job sites, by charging a small fee to provide them with curated access to the best companies and up-to-date jobs. This focus allows us to deliver a more personalized and effective job search experience.
- We've got about 70,000 jobs from 5,000 vetted companies. No fake or sleazy jobs here!
- We aggregate jobs from 5,000+ companies' career pages, so you can be sure that you're getting the most up-to-date and relevant jobs.
- We're the only job board *for* software engineers, *by* software engineers… in case you needed a reminder! We add thousands of new jobs daily and offer powerful search filters just for you. 🛠️
- Every single hour! We add 2,000-3,000 new jobs daily, so you'll always have fresh opportunities. 🚀
- Typically, job searches take 3-6 months. EchoJobs helps you spend more time applying and less time hunting. 🎯
- Check daily! We're always updating with new jobs. Set up job alerts for even quicker access. 📅
What Fellow Engineers Say