Staff Ad Unit Engineer — Unity Ads SDK

The opportunityWe are seeking a Staff Ad Unit Engineer to lead the next generation of ad experiences in the Unity Ads SDK.

You will be responsible for driving ad unit innovation — from dynamic rendering and interactive endcards to new ad flows that elevate user experience and improve monetization outcomes.

This role combines hands-on technical design with strategic leadership. You’ll work across Android, iOS, WebView, and backend services to build, experiment, and scale ad formats that reach billions of devices globally.

If you thrive at the intersection of front-end performance, creative experimentation, and full-stack system design, this is your opportunity to shape how millions of users experience ads through Unity.

What you'll be doing

• Lead the design and implementation of innovative ad unit formats and flows — including dynamic rendering, interactive components, and seamless inline ad experiences.
• Prototype and experiment rapidly, collaborating with PMs, BIs, and Data Science to validate hypotheses and measure impact through A/B testing.
• Architect and deliver full-stack solutions, connecting SDK surfaces with backend ad delivery and configuration services.
• Drive the ad format innovation roadmap — identify opportunities, define technical direction, and quantify business impact.
• Mentor engineers across Android, iOS, and WebView platforms, promoting engineering best practices and experimentation culture.
• Collaborate with backend and Gateway teams to enhance ad rendering pipelines, caching strategies, and lifecycle performance.
• Own feature metrics such as load rate, show rate, CTR, and revenue lift, ensuring performance scales post-rollout.
• Contribute to the Bold SDK architecture, helping establish a modular and extensible foundation for future ad format innovations.

What we're looking for

• 8+ years of software engineering experience, with a focus on mobile SDKs, rendering frameworks, or ad delivery systems.
• Expertise in front-end technologies: JavaScript/TypeScript, HTML/CSS, and hybrid rendering using WebView.
• Full-stack proficiency — ability to design APIs and data flows that connect mobile clients to backend services.
• Demonstrated success in leading experimentation-driven development, including feature flagging, rollout, and monitoring.
• Strong understanding of mobile ad lifecycle, caching, rendering, and performance optimization.
• Proven ability to influence cross-functional partners and align engineering, product, and data science teams around shared goals.
• Excellent communication and technical leadership skills, capable of driving both architectural vision and hands-on delivery.

You might also have

• Background in ad tech (VAST, MRAID, SKOverlay, SKAdNetwork, IAP, attribution).
• Experience with SDK, Gateway, or other large-scale delivery ecosystems.
• Familiarity with dynamic UI rendering frameworks or runtime layout generation.
• Experience working with experimentation platforms, telemetry pipelines, or BI data tooling.

Additional information

• Relocation support is not available for this position
• Work visa/immigration sponsorship is not available for this position

Life at UnityWe offer a wide range of benefits designed to support employees' well-being and work-life balance. You can read more about them on our career page.

Unity [NYSE: U] is the leading platform to create and grow games and interactive experiences. Creators, ranging from game developers to artists, architects, automotive designers, infrastructure experts, filmmakers, and more, use Unity to bring their imaginations to life across multiple platforms, from mobile, PC, and console, to spatial computing.

As of the third quarter of 2024, more than 70% of the top 1,000 mobile games were made with Unity, and in 2024, Made with Unity applications had an average of 3.7 billion downloads per month. For more information, please visit Unity.

Unity is a proud equal opportunity employer. We are committed to fostering an inclusive, innovative environment and celebrate our employees across age, race, color, ancestry, national origin, religion, disability, sex, gender identity or expression, sexual orientation, or any other protected status in accordance with applicable law. Our differences are strengths that enable us to support the growing and evolving needs of our customers, partners, and collaborators. 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.

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

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.

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