1. What is a Mobile Engineer at Arthrex?

As a Mobile Engineer at Arthrex, you are stepping into a pivotal role at the intersection of medical innovation and digital transformation. Arthrex is a global leader in orthopedic medical device design and manufacturing, and its software ecosystem is critical to empowering surgeons, healthcare professionals, and patients. In this role, you will be instrumental in building and refining mobile applications that interface with advanced medical hardware and data systems, such as those driven by the Synergy team.

Your work directly impacts the usability, reliability, and accessibility of surgical imaging and integration tools. A major strategic initiative for Arthrex is bringing previously outsourced iOS and mobile development in-house. This means you will not just be maintaining existing codebases; you will be actively transitioning, architecting, and taking ownership of mission-critical applications that have historically been managed by external agencies.

This position offers a unique blend of technical challenge and strategic influence. You will collaborate closely with cross-functional teams across different Arthrex hubs—including Santa Barbara, California, and Naples, Florida—to ensure that the company's mobile offerings meet the highest standards of performance, security, and medical compliance. You can expect a highly collaborative environment where your technical decisions will shape the future of Arthrex's mobile strategy.

2. Common Interview Questions

3. Getting Ready for Your Interviews

To succeed in the Arthrex interview process, your preparation must go beyond standard coding exercises. Interviewers are looking for a blend of technical mastery, strategic thinking, and strong cultural alignment.

Focus your preparation on the following key evaluation criteria:

Technical Proficiency in the Apple Ecosystem As the team transitions external work in-house, you must be highly fluent in both modern and legacy iOS technologies. Interviewers will evaluate your deep understanding of Swift, Objective-C, and core iOS frameworks. You can demonstrate strength here by showing how you comfortably navigate mixed codebases and modernize legacy systems.

API Integration and Architecture Mobile apps at Arthrex rely heavily on seamless communication with backend systems and medical hardware. Interviewers will test your ability to work with RESTful APIs, handle asynchronous data, and design robust networking layers. Be prepared to discuss how you structure data flow and handle edge cases like network latency or data parsing errors.

Collaboration and Stakeholder Management Because you will be taking over projects from external agencies and working with distributed teams across different states, your ability to communicate effectively is heavily scrutinized. You will be evaluated on your tact, code-review philosophy, and ability to extract requirements from external partners. Highlight past experiences where you successfully onboarded legacy code or collaborated across organizational boundaries.

Culture Fit and Communication Arthrex places a massive emphasis on cultural alignment right from the first conversation. The company values candidates who are adaptable, respectful, and deeply aligned with their mission of helping surgeons treat their patients better. You can prove this by communicating clearly, showing enthusiasm for the medical device industry, and demonstrating a team-first mentality.

4. Interview Process Overview

The interview process for a Mobile Engineer at Arthrex is thorough and highly structured, typically taking about a month from the initial screen to the final stages. The process is uniquely designed to assess both your technical capabilities and your ability to integrate into a distributed, transitioning team.

Your journey will begin with an initial HR phone screen. Unlike many companies where this is a simple logistical check, the HR screen at Arthrex acts as a strict gatekeeper. The recruiter heavily evaluates your communication skills, motivations, and cultural fit; if you do not impress at this stage, you will not move forward. Following this, you will have a conversation with the hiring manager to discuss your background, team fit, and high-level technical experience.

The technical evaluation is split into multiple phases. You will face a rigorous technical screening with a software development supervisor—often based out of the Naples, Florida mobile hub—which dives deep into iOS fundamentals. Finally, because of the ongoing effort to bring external apps in-house, you will likely have a technical discussion with the external agency developer currently responsible for the app. This step is highly unique and tests your ability to understand existing architectures, ask insightful questions, and handle technical handoffs professionally.

This visual timeline outlines the progression from the critical HR gatekeeper screen through the hiring manager interview, the core technical evaluation, and the final agency sync. Use this to pace your preparation, ensuring you are ready to articulate your cultural alignment early on before shifting your focus to deep technical and architectural discussions in the later rounds. The split technical rounds mean you must be prepared to discuss code with both internal supervisors and external contractors.

5. Deep Dive into Evaluation Areas

To confidently navigate the technical rounds at Arthrex, you must understand exactly what the engineering supervisors and external developers are looking for.

iOS Foundations: Swift and Objective-C

Because Arthrex is migrating externally developed applications in-house, their codebases often contain a mix of older and newer technologies. You must demonstrate that you are not just a modern Swift developer, but someone who understands the historical context of iOS development.

• Interviewers will assess your ability to read, debug, and bridge Objective-C with Swift.
• Strong performance means confidently explaining memory management (ARC), delegates, closures, and the interoperability between the two languages.

Be ready to go over:

• Swift paradigms – Optionals, protocols, value vs. reference types, and memory safety.
• Objective-C fundamentals – Message passing, pointers, and legacy memory management concepts.
• Bridging headers – How to effectively expose Objective-C classes to Swift and vice versa.
• Advanced concepts (less common) – Method swizzling, Objective-C runtime, and advanced Grand Central Dispatch (GCD) patterns.

Example questions or scenarios:

• "Explain how you would approach migrating an Objective-C module to Swift in a production app."
• "How does ARC differ between Objective-C and Swift, and what are common retain cycle pitfalls?"
• "Walk me through how you implement protocol-oriented programming in a legacy codebase."

Networking and RESTful APIs

Mobile applications at Arthrex, particularly within the Synergy team, rely heavily on accurate, real-time data fetching from complex backend systems. Your networking knowledge must be rock solid.

• Interviewers will evaluate how you architect your network layers, handle authentication, and parse JSON.
• Strong performance involves designing a scalable, testable networking stack rather than just relying on third-party libraries without understanding the underlying mechanics.

Be ready to go over:

• RESTful principles – HTTP methods, status codes, and designing API requests.
• URLSession and Concurrency – Handling asynchronous network calls using modern Swift concurrency (async/await) or completion handlers.
• Data Parsing – Utilizing Codable for JSON serialization and deserialization.
• Advanced concepts (less common) – WebSockets for real-time surgical data, certificate pinning for medical-grade security, and offline-first data caching strategies.

Example questions or scenarios:

• "Design a network layer in Swift to fetch and display a list of surgical videos from a RESTful API."
• "How do you handle token expiration and silent authentication refreshes in an iOS app?"
• "Explain your approach to handling poor network connectivity and caching data locally."

Legacy Code Integration and Agency Handoff

This is a uniquely critical evaluation area for the Arthrex process. Because you will be interacting with external agency developers who currently own the codebase, your soft skills and code-reading abilities are heavily tested.

• Interviewers (and the external developers) want to see how you approach code you didn't write.
• Strong performance looks like asking constructive, architecture-focused questions without being overly critical of legacy decisions.

Be ready to go over:

• Code comprehension – Strategies for mapping out undocumented or complex legacy code.
• Refactoring strategies – How to safely refactor code using unit tests as a safety net.
• Cross-team communication – Extracting business logic and requirements from external vendors.
• Advanced concepts (less common) – Setting up CI/CD pipelines from scratch for a newly internalized repository.

Example questions or scenarios:

• "Tell me about a time you had to take over a project from another team. What was your first step?"
• "If you find a critical architectural flaw in the agency's code during the handoff, how do you address it?"
• "How do you prioritize feature development versus technical debt when bringing an app in-house?"