Senior iOS SDK Engineer

About the Role We are looking for a   Senior iOS SDK Engineer   to join our Mobile Observability team, responsible for designing, building, and maintaining our   open-source Swift SDK   across Apple platforms (iOS, tvOS, watchOS, and macOS). This is a   hands-on, SDK-first role   focused on building high-performance instrumentation libraries embedded in customer applications. It is ideal for someone who enjoys working close to the platform, solving difficult edge cases, and designing APIs that other developers rely on. You’ll work on performance monitoring, telemetry capture, hang detection and crash reporting, all designed for minimal overhead and maximum reliability. You’ll collaborate across platform teams and contribute to evolving observability standards such as OpenTelemetry. What You’ll Do Design, build, and maintain a   modular Swift SDK   used by developers across Apple platforms Work on   crash reporting, hang detection, performance monitoring, and telemetry instrumentation Build reliable mechanisms for   offline storage, batching, retries, and data delivery   under mobile runtime constraints Contribute to   SDK architecture, API ergonomics, and backward compatibility Design and evolve APIs with a focus on   stability, clarity, and long-term compatibility Debug complex issues across devices, OS versions, and app environments, including   threading, memory, and lifecycle challenges Develop and maintain capture services for   networking, user interactions, and system events, leveraging frameworks such as   MetricKit Optimize   startup performance, binary size footprint, memory usage, and thread safety Coordinate with   cross-platform SDK teams (React Native, Flutter, Unity)   to ensure native SDK changes do not introduce downstream breaking issues Collaborate on   OpenTelemetry alignment and upstream contributions Partner with Product and Customer Success to incorporate   developer feedback Basic Qualifications Strong proficiency in   Swift, including async/await, structured concurrency, and protocol-oriented design Experience building or maintaining   SDKs, frameworks, or developer-facing libraries Deep understanding of   Apple platform runtime constraints:   memory, threading, lifecycle, startup performance Experience debugging issues in   production mobile environments Familiarity with   API design, versioning, and SDK evolution Understanding of   binary compatibility and ABI stability Strong advocate for   testing, reliability, and code quality Excellent verbal and written communication skills Experience using   Git and modern CI/CD workflows Openness to   AI-augmented engineering workflows Preferred Qualifications Experience with   Objective-C interoperability, runtime behavior, or method swizzling Experience with   Swift macros   or   Swift Syntax Familiarity with   OpenTelemetry or observability concepts   (traces, spans, logs) Experience supporting   multiple Apple platforms   from a shared codebase Familiarity with system-level frameworks such as   MetricKit   or   MXDiagnostic Experience working in a   multi-SDK ecosystem   where platform changes affect cross-platform consumers Contributions to   open-source projects Experience supporting   external developers / SDK users Additional Expectations Interview & Collaboration Our interview process includes live, synchronous conversations. Final stages may include an   in-person meeting   with a team member (travel may be required). Engineering Workflow Evolution We work in an environment where   AI-assisted tools are increasingly part of engineering workflows. We value pragmatic, thoughtful use of these tools and expect candidates to be comfortable discussing their experience and perspective. Role Focus This role emphasizes   SDK / framework / platform engineering, not application UI development. Work Culture & Travel We are a remote-first company. This role is open to candidates located anywhere in the U.S. or Canada. We believe in regular in-person connection and expect travel for team off-sites and collaboration to be approximately once per quarter. The cash compensation for this role is in the $130k-170k range. In addition to base comp for this role, we offer equity in the form of options, a variety of benefits, and the opportunity to grow in an exciting and collaborative environment. Actual compensation may vary based on level, experience, and skillset as assessed in the interview process. Why Join Embrace? As the only user-focused observability solution built on OpenTelemetry, Embrace delivers crucial insights across both DevOps, web and mobile teams to illuminate real customer impact – not just server impact – to deliver the best app experiences. Customers like The New York Times, Marriott, Masterclass, Home Depot, and Cameo love Embrace’s observability platform because it makes extremely complicated and voluminous data actionable. Our cultural values highlight how we seek to improve as individuals, team members, and a company each and every day.