Software Engineer III, Merchant Shopping, Intelligence and Agents

Google LLC; Zürich; On-site; CHF 140,000 - 190,000; Full time

Job summary

Google LLC in Zurich, Switzerland, is seeking a Software Engineer III for Merchant Shopping, Intelligence and Agents to develop next‑generation LLM agents that serve more than 2M merchants on Google Shopping. You will build agentic tools, reason over metrics, and deliver actionable business guidance across surfaces.

You will work on scalable backend systems, deploy features with low latency, and collaborate with cross‑functional teams to push the boundaries of AI and search technologies at scale.

Qualifications

• Bachelor’s degree or equivalent practical experience.
• 2 years of experience with software development in one or more programming languages, or 1 year of experience with an advanced degree.
• 1 year of experience with ML infrastructure (e.g., model deployment, evaluation, optimization, data processing, debugging).
• Master's degree or PhD in Computer Science or related field (preferred).
• 2 years of experience with data structures and algorithms (preferred).

Responsibilities

• Design, build, and deploy features for flagship conversational agents using Gemini models and ADK.
• Implement backend tools and RPC integrations to retrieve, aggregate, and reason over merchant performance metrics, inventory, and guidance cards.
• Implement evaluations, guardrails, and prompt strategies to ensure accuracy and helpfulness in agent responses.
• Integrate conversational intelligence with reporting frameworks across Merchant Center and Business Home.
• Write clean, efficient, well-tested code in Java/Kotlin or C++, ensuring low-latency serving for millions of merchants.

Skills

Software development

ML infrastructure

AI/ML concepts

Education

Bachelor’s degree or equivalent

Master’s degree or PhD (preferred)

Job description

Software Engineer III, Merchant Shopping, Intelligence and Agents

Share Software Engineer III, Merchant Shopping, Intelligence and Agents

X In most instances, this position requires in-person interviews as part of the hiring process.

• Bachelor’s degree or equivalent practical experience.
• 2 years of experience with software development in one or more programming languages, or 1 year of experience with an advanced degree.
• 1 year of experience with Machine Learning (ML) infrastructure (e.g., model deployment, model evaluation, optimization, data processing, debugging).

Preferred qualifications:

• Master's degree or PhD in Computer Science or a related technical field.
• 2 years of experience with data structures and algorithms.

About the job

Google'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 Google’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.

About the job

Google'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 Google’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.
In this role, you will build next-generation Large Language Model (LLM) agents (e.g., BAA and BHAA) that act as virtual business analysts for more than 2M merchants across Google Shopping. You will implement agentic tools and reasoning pipelines that explain performance shifts and deliver actionable business guidance across surfaces.People shop on Google more than a billion times a day - and the Commerce team is responsible for building the experiences that serve these users. The mission for Google Commerce is to be an essential part of the shopping journey for consumers - from inspiration to to a simple and secure checkout experience - and the best place for retailers/merchants to connect with consumers. We support and partner with the commerce ecosystem, from large retailers to small local merchants, to give them the tools, technology and scale to thrive in today’s digital world.

Responsibilities

• Design, build, and deploy features for our flagship conversational agents (e.g., BAA and BHAA) using Gemini models and Google’s Agent Development Kit (ADK).
• Implement robust backend tools and Remote Procedure Call (RPC) integrations (e.g., server platform, Spanner, F1) that allow agents to retrieve, aggregate, and reason over merchant performance metrics, inventory, and guidance cards
• Implement automated evaluations, guardrails, and prompt engineering strategies to eliminate hallucinations and ensure high factual accuracy and helpfulness in agent responses.
• Connect conversational intelligence with Graphics Interchange Format's (GIF’s) reporting and guidance frameworks to deliver seamless interactions across Merchant Center and Business Home.
• Write clean, efficient, and well-tested code in Java/Kotlin or C++, ensuring agent workflows execute reliably and meet low-latency serving requirements for millions of merchants.

Google is proud to be an equal opportunity and affirmative action employer. We are committed to building a workforce that is representative of the users we serve, creating a culture of belonging, and providing an equal employment opportunity regardless of race, creed, color, religion, gender, sexual orientation, gender identity/expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related condition (including breastfeeding), expecting or parents-to-be, criminal histories consistent with legal requirements, or any other basis protected by law. See also Google's EEO Policy , Know your rights: workplace discrimination is illegal , Belonging at Google , and How we hire .

Google is a global company and, in order to facilitate efficient collaboration and communication globally, English proficiency is a requirement for all roles unless stated otherwise in the job posting.

Equity is granted exclusively and discretionarily by Alphabet Inc. on the basis of an agreement concluded between you and Alphabet Inc. Alphabet Inc. is your sole contractual partner with respect to equity grants. GSU grants are not guaranteed, are discretionary, are subject to approval by the Alphabet Inc. board of directors or its delegate, the terms of the relevant Alphabet Inc. stock plan, and your grant agreement. They have no impact on statutory payments. Current or past grants do not confer an acquired right.