Software Engineer III, Full Stack, Publisher Inventory

United States Digital Space LLC; Greater London; On-site; GBP 67,133 - 104,430; Full time

Job summary

United States Digital Space LLC is seeking software engineers to build next-generation monetization platforms, ad configuration interfaces, and AI-augmented features. You'll work on scalable, full-stack systems handling high-volume data, collaborating with PMs, UX, and cross-site teams to deliver end-to-end solutions.

This role emphasizes versatility, leadership, and rapid problem-solving across back-end and client-facing components, with opportunities to switch projects as the company scales.

Qualifications

• Bachelor's degree or equivalent practical experience.
• 2 years of full-stack development experience across back-end (Kotlin, C++) and front-end (TypeScript).
• 2 years of software development in one or more programming languages, or 1 year with an advanced degree.

Responsibilities

• Design, develop, and maintain clean, scalable products for developer-facing monetization platforms and ad configuration interfaces.
• Build automated runtime solutions and event-driven systems that control and optimize ad placement, policy compliance, and publisher revenue.
• Leverage AI tooling and LLM APIs to improve engineering velocity and build AI-augmented product features.
• Collaborate with PMs, UX, and cross-sites with other engineering partners to deliver end-to-end features.
• Write robust, well-tested, high-performance code ensuring quality and reliability across the platform.

Skills

Full-stack development

Kotlin/C++

TypeScript

APIs/SDKs

Cross-platform

Education

Bachelor's degree or equivalent practical experience

Tools

Dart

Angular

Job description

Minimum qualifications:

• Bachelor’s degree or equivalent practical experience.
• 2 years of experience with full stack development, across back-end such as Kotlin, C++ codebases, and front-end experience including TypeScript or equivalent.
• 2 years of experience with software development in one or more programming languages, or 1 year of experience with an advanced degree.

Preferred qualifications:

• 1 year of experience with application development in Android or iOS.
• Experience working with Dart or Angular and Java.
• Experience designing and implementing developer-facing APIs, SDKs, or cross-platform wrappers.
• Experience building monetization platforms, ad configuration interfaces, or automated runtime engines.
• Experience leveraging LLM APIs, generative AI tools, or modern AI-assisted workflows to build smart product features or improve engineering velocity.

About the job

the company's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to handle information at massive scale, and extend well beyond web search. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to the company’s needs with opportunities to switch teams and projects as you and our fast-paced business grow and evolve. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward.

the company Ads is helping power the open internet with the best technology that connects and creates value for people, publishers, advertisers, and the company. We’re made up of multiple teams, building the company’s Advertising products including search, display, shopping, travel and video advertising, as well as analytics. Our teams create trusted experiences between people and businesses with useful ads. We help grow businesses of all sizes from small businesses, to large brands, to YouTube creators, with effective advertiser tools that deliver measurable results. We also enable the company to engage with customers at scale.

Responsibilities

• Design, develop, and maintain clean, scalable products for developer-facing monetization platforms and ad configuration interfaces.
• Build automated runtime solutions and event-driven systems that control and optimize ad placement, policy compliance, and publisher revenue.
• Leverage the company’s state-of-the-art AI tooling and LLM APIs to improve engineering velocity and build AI-augmented product features.
• Collaborate with cross-functional partners including PMs, UX, and cross-sites with other engineering partners to deliver seamless end-to-end features.
• Write robust, well-tested, and high-performance code, ensuring high quality and reliability across our platform.

the company is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. See also the company's EEO Policy and EEO is the Law. If you have a disability or special need that requires accommodation, please let us know by completing our Accommodations for Applicants form.