Staff iOS SDK Engineer, Unity Ads

Unity; New York (NY); On-site; USD 200,000 - 261,000; Full time

Benefits offered by this job

Health insurance

Equity in company

Retirement plans

Generous vacation

Job summary

Unity is seeking a Staff Software Engineer specializing in iOS to shape the architecture and future of the Unity Ads SDK. This hands-on leadership role owns the iOS SDK, collaborating with engineers across iOS and Android to deliver high-quality, performant components.

You will lead complex projects from design through rollout, mentor teams, and drive reliability, memory management, and developer experience.

Qualifications

• Deep expertise building and shipping production iOS software.
• Expert-level knowledge of Swift and strong familiarity with Objective-C.
• Experience designing and maintaining SDKs, frameworks, or libraries embedded in third-party apps, including API design and backwards compatibility.
• Experience with Android development concepts and cross-platform collaboration.

Responsibilities

• Lead the technical direction of the iOS SDK, owning architecture and major initiatives.
• Design and build high-quality SDK components focused on performance and reliability.
• Partner with Android engineers on shared SDK architecture and APIs.
• Own complex projects end-to-end from design through rollout, measurement, and iteration.
• Address production issues related to app lifecycle, memory, networking, and rendering.

Skills

Swift

Objective-C

iOS app lifecycle

SDK design

Android concepts

Profiling & crash analysis

Leadership in complex projects

Tools

WKWebView

StoreKit

SKAdNetwork

Kotlin/Java basics

Profiling tools

Job description

At Unity, we power the world’s most creative and immersive gaming experiences - and our Ads SDK Team is at the forefront of helping game developers turn their passion into a thriving business. Our mission is to build cutting-edge monetization solutions that give publishers full transparency and control in their revenue strategies.

We’re redefining what’s possible with next-gen ad technology, building an end-to-end monetization stack that dynamically adapts to different players and gaming experiences. From real-time optimizations and intelligent player segmentation to new interactive ad formats, we’re creating tools that don’t just boost revenue but enhance engagement and player experience.

We are looking for a Staff Software Engineer specializing in iOS to help shape the architecture and future of the Unity Ads SDK. This role will have deep ownership of our iOS SDK, while working closely with engineers across both iOS and Android. We are looking for someone who is deeply experienced with iOS and comfortable working with and understanding Android code and concepts when projects or technical decisions span both platforms.

At the Staff level, you will help drive technical direction, solve complex problems end-to-end, and improve the architecture, reliability, performance, and developer experience of our SDK. This is a hands-on technical leadership role with impact beyond the code you personally write.

What You'll Be Doing

• Lead the technical direction of our iOS SDK, owning the architecture and implementation of major SDK initiatives
• Design and build high-quality SDK components in Swift, focused on performance, reliability, maintainability, and backwards compatibility
• Partner with Android engineers on shared SDK architecture, APIs, and features, reading Android implementations when projects span both platforms
• Own complex projects end to end, from problem definition and technical design through rollout, measurement, and iteration
• Solve challenging production issues involving app lifecycle, concurrency, memory, networking, rendering, WebViews, and host-app interactions
• Improve SDK initialization, ad loading and rendering performance, memory usage, binary size, crash rates, observability, and release safety
• Mentor engineers through design reviews, code reviews, and hands-on collaboration, while proactively surfacing architectural risks and opportunities to improve

What We're Looking For

• Deep expertise building and shipping production iOS software
• Expert-level knowledge of Swift and strong familiarity with Objective-C
• Deep understanding of iOS app lifecycle, memory management, concurrency, networking, rendering, and performance optimization
• Experience designing and maintaining SDKs, frameworks, or libraries embedded in third-party apps, including API design, backwards compatibility, versioning, dependency management, and release practices
• Working knowledge of Android development concepts and the ability to navigate Kotlin/Java code
• Experience diagnosing complex production problems using profiling, crash reporting, logs, and metrics
• Track record of leading technically complex projects across multiple engineers or teams, with effective written and verbal communication that influences technical direction

You Might Also Have

• Experience building mobile advertising, monetization, mediation, or measurement SDKs
• Experience with WKWebView and native-to-web communication, or with StoreKit, SKAdNetwork, attribution, and privacy APIs
• Experience with Unity Engine or other game engines

Additional Information

Gross base salary:
Zone A: $200,400 - $260,500 USD

Zone B: $178,300 - $231,800 USD

Zone C: $157,800 - $205,200 USD

This range reflects the anticipated base salary for this position. Beyond base salary, this role may be eligible for equity awards and participation in our company incentive plans (such as annual discretionary bonuses or sales commissions). The final offer amount will depend on several factors, including geographic location and the candidate’s relevant experience, professional background, and skill set.

Benefits

At Unity, we want our team members to thrive. We offer a wide range of benefits designed to support well-being and work-life balance.

Please note: Benefits eligibility, specific offerings, and coverage vary based on the country and employment status.

While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock ownership | Competitive retirement/pension plans | Generous vacation and personal days | Support for new parents through leave and family-care programs | Office food snacks | Mental Health and Wellbeing programs and support | Employee Resource Groups | Global Employee Assistance Program | Training and development programs | Volunteering and donation matching program

Life at Unity

Unity [NYSE: U] is the world’s leading game engine, powering play for more than 3 billion consumers each month. The top mobile games in the world, the most played PC indie titles, the most innovative console games, and virtually all of the top XR and Web Games are developed, deployed, and grown in Unity. Unity also enables teams across industries like automotive, manufacturing, and healthcare to design, simulate, and collaborate in 3D — closing the gap between ideas and reality.