Staff Software Engineer-SDKs

Ditto; Atlanta (GA); On-site; USD 119,000 - 258,000; Full time

Job summary

A leading tech company is seeking a Staff Software Engineer to specialize in Kotlin Multiplatform SDKs, enhancing real-time data synchronization across platforms. You will architect shared modules, optimize performance, and oversee the complete development lifecycle, while collaborating closely with multifaceted teams to deliver exceptional SDK solutions.

Benefits

Competitive salaries

Stock options

Medical, dental, vision, life, and disability coverage

Flexible vacation policy

401(k) plan

Qualifications

• 4+ years of professional software development experience.
• Deep expertise in Kotlin Multiplatform.
• Ability to read native stack traces and troubleshoot issues.

Responsibilities

• Own the KMP SDK roadmap and maintain Ditto's shared libraries.
• Build and maintain FFI bridges between Kotlin/Native and Rust.
• Develop comprehensive test suites and integrate with CI/CD pipelines.

Skills

Kotlin Multiplatform

Debugging

Test automation

CI/CD

Communication

Job description

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About Ditto:

Ditto is on a mission to unleash the full power of edge devices by removing all the plumbing required to build amazing applications. We bridge the digital divide by enabling real-time data synchronization—even when internet connectivity is limited or non-existent. Our peer-to-peer technology is trusted by major customers like Chick-fil-A and Delta Airlines, and we also work closely with the U.S. military on mission-critical connectivity solutions. As a fast-growing startup poised for a future IPO, our team is globally distributed, and our core values are trust, communication, and continuous improvement. We celebrate diversity and strive to create a team that encompasses a wide range of backgrounds, skill sets, and perspectives.

About Ditto:

Ditto is on a mission to unleash the full power of edge devices by removing all the plumbing required to build amazing applications. We bridge the digital divide by enabling real-time data synchronization—even when internet connectivity is limited or non-existent. Our peer-to-peer technology is trusted by major customers like Chick-fil-A and Delta Airlines, and we also work closely with the U.S. military on mission-critical connectivity solutions. As a fast-growing startup poised for a future IPO, our team is globally distributed, and our core values are trust, communication, and continuous improvement. We celebrate diversity and strive to create a team that encompasses a wide range of backgrounds, skill sets, and perspectives.

About the role:

As a Kotlin Multiplatform Engineer on Ditto's SDKs team, you will play a pivotal role in simplifying real-time data synchronization for developers across multiple platforms. You'll leverage Kotlin's shared code capabilities to craft elegant, high-performance SDK modules that run seamlessly on Android, iOS, web, IoT, and desktop. Working closely with product managers, designers, and backend engineers, you'll translate user needs into intuitive APIs and robust libraries—all while navigating the low-level FFI layer to connect Kotlin with our Rust core.

From day one, you'll own the full development lifecycle: architecting shared multiplatform modules, writing and refining FFI bindings for safe, efficient cross-language calls, authoring comprehensive automated tests, and streamlining CI/CD pipelines for reliable releases. You'll partner directly with customers and support teams to diagnose integration issues, optimize performance on resource-constrained devices, and iterate quickly on feedback.

You'll join a small, globally distributed group that values trust, clear communication, and continuous improvement. In our async-first culture, your written design docs and code reviews carry as much weight as face-to-face meetings, and occasional offsite gatherings bring us together to share learnings and strengthen our bond. If you're passionate about pushing the boundaries of cross-platform development, mentoring teammates on best practices, and delivering world-class SDK experiences, this is the role for you.

As a Staff SDK Engineer, you will:

• Own the KMP SDK roadmap Drive the design, implementation, and ongoing maintenance of Ditto's shared Kotlin Multiplatform libraries, ensuring they meet our high standards for reliability, performance, and developer ergonomics.
• Craft idiomatic, platform-native APIs Expose public interfaces that feel natural in each target environment—Android, iOS, web, and desktop—while maximizing shared-code reuse and minimizing platform-specific boilerplate.
• Build and maintain FFI bridges Implement safe, efficient Foreign-Function Interface bindings between Kotlin/Native and our Rust core, adhering to best practices for memory management, threading, and error handling.
• Ensure cross-platform compatibility Manage source sets, Gradle configurations, and platform quirks to deliver seamless SDK behavior across diverse architectures and operating systems.
• Develop comprehensive test suites Write and automate unit, integration, and end-to-end tests (including native interop scenarios) 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 Kotlin Multiplatform, FFI integration, and cross-platform testing techniques through design reviews, brown-bags, and one-on-one coaching to level up the entire SDKs team.
  
  

What you'll need:

• 4+ years of professional software development experience Proven track record of delivering production-quality applications and libraries in a team setting.
• Deep expertise in Kotlin Multiplatform Hands-on experience configuring shared modules, source sets, and Gradle builds to target Android, iOS, desktop, and web.
• Debugging and diagnostic chops Ability to read native stack traces, interpret logs and memory dumps, and troubleshoot issues across distributed environments.
• Test automation and CI/CD fluency Experience designing and implementing unit, integration, and end-to-end tests, 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.
  
  

Nice to Haves:

• Mobile networking and transport knowledge Experience with REST, TCP/UDP, QUIC, Bluetooth Low Energy, and other mobile-device communication protocols.
• Proven FFI integration skills Solid background building and maintaining Foreign-Function Interface bridges—ideally between Kotlin/Native and Rust—to ensure safe, high-performance interop.
• Embedded database familiarity Practical use of on-device storage solutions such as SQLite or SQLDelight, especially in synchronization scenarios.
• Prior Rust development experience Hands-on work writing, testing, and maintaining non-trivial Rust codebases (beyond just FFI bindings), with familiarity in Cargo workflows and idiomatic Rust patterns.
• Experience with build and release automation Proven ability to publish Kotlin Multiplatform artifacts (e.g., to Maven Central, CocoaPods, npm) and configure Gradle/Kotlin DSL and CI pipelines for cross-platform distribution.
• Track record of open-source contributions Demonstrated involvement in Kotlin Multiplatform or SDK projects—whether through libraries, plugins, tooling, or community support—that showcases collaborative development and code quality.
  
  

Benefits we offer:

• Competitive salaries
• Stock options
• Medical, dental, vision, life, and disability coverage
• Flexible spending account (FSA)
• Flexible vacation policy
• 401(k) plan
• Office located in Atlanta, GA. Available for team member use.
  
  

Come join our remote team and discover the possibilities of your best career!

Equal Opportunity Employer: Ditto is proud to be an equal-opportunity employer. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other applicable legally protected characteristics. Ditto is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, please let us know.

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Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Technology, Information and Internet

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