Staff Software Engineer, SDKs

Summary

Join Ditto's SDK team as a Staff Software Engineer (Flutter SDK) and lead the development and delivery of Ditto's Flutter package. You will design Dart APIs, architect cross-platform plugin modules, and build bridges between Dart and Ditto's native core. You'll own architecture decisions, performance profiling, and release automation, while mentoring engineers and shaping best practices. Collaborate with product, design, and backend teams to translate developer-experience goals into intuitive APIs and high-performance code. Work with customers and support engineers to diagnose issues and optimize performance. Contribute to a culture of collaboration and continuous improvement within our async-first, globally distributed team.

Requirements

• 3+ years building production software with a track record of shipping reliable code in a team setting
• Fluency in Dart and comfort designing idiomatic, null-safe APIs
• Hands-on Dart FFI experience building bridges to native code
• Strong testing discipline (unit, integration, CI pipelines)
• Familiarity with CI/CD tools such as GitHub Actions or CircleCI
• Clear, concise communication —especially in async, written form

Responsibilities

• Implement and enhance Flutter SDK features
• Deliver scoped ticket work: add new API methods, improve existing functionality, and fix defects under the direction of senior engineers
• Write reliable tests
• Author unit and integration tests to validate Flutter logic and interoperability, ensuring code quality and preventing regressions
• Own quality from test to release – Build unit/integration tests, profile performance, automate releases, and uphold robust observability
• Participate in code reviews
• Contribute thoughtful feedback on pull requests, learn from review comments, and uphold team coding standards
• Collaborate cross-functionally
• Work with product, QA, and support teams to clarify requirements, reproduce customer issues, and verify fixes
• Produce and maintain documentation
• Write clear README updates, code examples, and API reference snippets that help internal and external developers onboard quickly
• Communicate progress and blockers
• Proactively share status updates in standups and async channels; escalate challenges early to keep projects on track

Preferred Qualifications

• Experience building or maintaining SDKs, libraries, or developer tools in Rust or other languages
• Familiarity with one or more of our consumer languages (Kotlin, JavaScript/TypeScript, Swift)
• Background in peer-to-peer or real-time synchronization systems
• Prior work with performance profiling or memory-constrained environments

Benefits

• Competitive salaries and stock options
• Medical, dental, vision, life, and disability coverage
• Flexible spending account (FSA)
• Generous, flexible vacation policy
• 401(k) plan with employer match