The opportunity
We are hiring a Senior SDK Engineer to act as a senior individual contributor on the iOS SDK, owning features or subsystems end-to-end from design through implementation and maintenance.
This is a chance to work at the exciting intersection of SDK development, machine learning, and data infrastructure. Join us to create innovative solutions that propel advertising technology forward, impacting billions of global ad experiences while ensuring privacy and compliance.
What you'll be doing
- Act as a senior individual contributor on the iOS SDK, owning features or subsystems end-to-end from design through implementation and maintenance.
- Contribute to the development and evolution of the iOS SDK architecture within established platform direction and guardrails.
- Implement reliable, performant iOS SDK components with strong attention to threading, lifecycle, and main-thread safety.
- Identify and fix production crashes, performance issues, and regressions, and contribute to improving overall SDK stability.
- Proactively improve existing code, abstractions, and development practices to enhance maintainability and reliability.
- Exercise sound technical judgment in balancing correctness, performance, and delivery timelines.
- Collaborate closely with Android engineers, backend teams, product managers, and QA to ensure consistent SDK behavior and safe integrations.
- Participate in design and code reviews, providing thoughtful feedback and raising engineering quality across the team.
What we're looking for
- 6+ years of professional iOS development experience.
- Strong proficiency in Swift
- Experience developing iOS SDKs.
- Familiarity with Ads SDKs, monetization platforms, or other performance-sensitive mobile systems.
- Familiarity with cross-platform SDK alignment and shared contracts between iOS and Android.
- Experience with SDK observability, diagnostics, and release processes.
- Knowledge of mobile security and privacy best practices.
- Experience operating in large, mature codebases with a focus on stability and backwards compatibility.
Additional information
- Relocation support is not available for this position
- Work visa/immigration sponsorship is not available for this position
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. For more information, please visit www.unity.com.
Unity is an equal opportunity employer committed to fostering an inclusive, innovative environment with the best employees. Therefore, we provide employment opportunities without regard to age, race, color, ancestry, national origin, disability, gender, or any other protected status in accordance with applicable law. If you have a disability that means there are preparations or accommodations we can make to help ensure you have a comfortable and positive interview experience, please fill out this form to let us know.
This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.
Headhunters and recruitment agencies may not submit resumes/CVs through this website or directly to managers. Unity does not accept unsolicited headhunter and agency resumes. Unity will not pay fees to any third-party agency or company that does not have a signed agreement with Unity.
Your privacy is important to us. Please take a moment to review our Prospect and Applicant Privacy Policies. Should you have any concerns about your privacy, please contact us at [email protected].
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*Note: Certain locations require a good faith disclosure of the base salary range for the role. The actual salary for the successful candidate may differ based on location, experience, and other job-related factors.
Skills Required
- 6+ years of professional iOS development experience
- Strong proficiency in Swift
- Experience working on Ads SDKs or monetization platforms
- Familiarity with cross-platform SDK alignment
- Experience with SDK observability and release processes
- Knowledge of mobile security and privacy best practices
- Experience in large, mature codebases
Unity Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Unity and has not been reviewed or approved by Unity.
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Healthcare Strength — Core medical, dental, vision, life/disability, and mental‑health/EAP offerings are positioned as comprehensive across eligible locations. This breadth aligns with large‑tech standards and is highlighted in official materials.
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Retirement Support — A 401(k) plan with employer matching is part of the U.S. package. Retirement benefits are characterized as competitive and a stable element of total rewards.
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Parental & Family Support — Paid parental leave and family‑care support are emphasized, with indications of generous time off for new parents. These programs are presented as global in scope, with specifics verified by location.
Unity Insights
What We Do
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.
Why Work With Us
We believe the world is a better place with more creators in it. This is at the core of our business because we believe our technology can change the world. Our products give content creators the tools to not just entertain but to create innovative RT3D experiences and deliver better processes for almost every industry.
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