Ditto · 1 day ago
Senior Software Engineer, SDK React Native
United States
Full-time
Remote
Senior Level
$223K/yr - $247K/yr
5+ years expDitto is a company focused on redefining data movement at the edge, enabling developers to create resilient, real-time applications. They are seeking a Senior SDK Engineer to own the React Native SDK, focusing on API design, implementation, and maintenance while collaborating across platforms to ensure seamless integration and performance.
CollaborationProduct DesignSoftwareUX Design
Responsibilities
Own the React Native SDK. Drive the design, implementation, and ongoing maintenance of Ditto's React Native SDK, ensuring it meets our high standards for reliability, performance, and developer ergonomics
Craft idiomatic APIs for React Native developers. Expose public interfaces that feel natural—hooks, TypeScript types, familiar async patterns, and clear error handling—while abstracting away the complexity of native bridges and synchronization internals
Build and maintain native bridges. Implement safe, efficient bindings between JavaScript and native code via JSI, TurboModules, or the classic bridge, handling threading, serialization, memory management, and error propagation
Debug across the full stack. Trace issues from JavaScript through the React Native bridge, into native Android and iOS code, and potentially into our Rust core. You'll need to be equally comfortable in Chrome DevTools and Android Studio
Work with other SDK owners. Work closely with the engineers who own our native Android, iOS, and Rust SDKs to ensure the React Native SDK stays in sync with platform capabilities and benefits from shared improvements
Develop comprehensive test suites. Write and automate unit, integration, and end-to-end tests—including native interop scenarios and multi-device synchronization tests—to continuously validate SDK functionality and guard against regressions
Integrate with CI/CD pipelines. Collaborate with the Release and QA teams to embed your tests into our continuous integration workflows, monitor release quality, and iterate rapidly on customer feedback
Partner with customer support. Triage and resolve customer-reported integration issues, debug edge-case failures in the field, and feed learnings back into product and engineering roadmaps
Mentor and evangelize best practices. Share your expertise in React Native architecture and cross-platform SDK design through design reviews, documentation, and coaching to level up the team
Qualification
Required
5+ years of professional mobile development experience with a proven track record of delivering production-quality applications or libraries
Deep expertise in React Native internals. Hands-on experience with the native bridge architecture, JSI, TurboModules, or Fabric. You understand how JavaScript communicates with native code and have debugged issues that span both worlds
Strong Android development experience. You've built or maintained Android applications in Kotlin or Java. You can navigate Android Studio, read native stack traces, understand the Android lifecycle, and debug issues at the native layer. This isn't about owning our Android SDK—it's about being effective when React Native issues lead you into native Android code
Debugging and diagnostic expertise. Ability to trace issues across the JavaScript-native boundary, read stack traces from multiple languages, interpret logs and memory profiles, and isolate problems in complex cross-platform systems
Test automation and CI/CD fluency. Experience designing and implementing unit, integration, and end-to-end tests for mobile SDKs, and integrating them into automated build and release pipelines
Excellent communication skills. Strong written and verbal communication to thrive in an async-first, distributed team—drafting clear design docs, participating in code reviews, and coordinating with customers and stakeholders
Preferred
Native module development experience. You've built custom native modules for React Native that bridge to platform-specific APIs or native libraries, handling threading, serialization, and lifecycle concerns
iOS development experience. Familiarity with Swift or Objective-C and Xcode, enabling you to debug issues on both mobile platforms when they arise
FFI and JNI experience. Background building and maintaining Foreign Function Interface bridges, particularly JNI bindings between Kotlin/Java and native code
Rust development experience. Hands-on work writing, testing, and maintaining Rust codebases, with familiarity in Cargo workflows and idiomatic Rust patterns
Experience with SDK distribution. Proven ability to publish packages to npm, including versioning, TypeScript declarations, changelog management, and migration guides
Track record of open-source contributions. Demonstrated involvement in React Native or mobile SDK projects that showcases collaborative development and code quality
Benefits
Health, dental, vision, life, and disability insurance
401(k)
Flexible spending accounts
Private healthcare through Vitality
A pension plan
Region-specific coverage
Flexible time off
Company
Ditto
Ditto allows teams to collaborate on consistent and effective copy.
2-10 employees
H1B Sponsorship
Ditto has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2022 (1)
2020 (3)
Funding
Current Stage
Early StageTotal Funding
$13.85MKey Investors
Craft VenturesY Combinator
2026-01-20Series A· $12.2M
2021-06-01Seed· $1.5M
2020-03-16Pre Seed· $0.15M
Leadership Team
Jessica Ouyang
Co-Founder
Jolena Ma
Co-Founder
Recent News
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