Sr. Applied AI Engineer
Sr. Applied AI Engineer
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Job Description
About Zapier
Were humans who simply think computers should do more work.
At Zapier were not just making softwarewere building a platform to help millions of businesses globally scale with automation and AI. Our mission is to make automation work for everyone by delivering products that delight our customers. Youll collaborate with brilliant people use the latest tools and leverage the flexibility of remote work. Your work will directly fuel our customers success and as they grow so will you.
Job posted: June 13 2025
Location: Americas / EMEA
Hi there!
Are you excited about building the AI foundation that powers real product experiences Were thrilled to invite you to join the Data AI/ML team at Zapier as a Sr. Applied AI Engineer!
As a key member of our team youll be at the heart of our efforts to make AI a core part of every Zapier product. Youll help design and build the reusable building blockslike LLM-powered APIs vector search services orchestration libraries and evaluation toolingthat enable teams across the company to create AI agent experiences quickly and safely.
This is your chance to shape how AI is implemented at Zapierfrom the raw data and infrastructure to the user-facing product experiences. Youll collaborate with AI Engineers Product teams and Machine Learning Engineers to make sure our AI capabilities are scalable reliable and easy to use. Your work will have massive impact across the entire organization.
If youre passionate about large language models (LLMs) love building powerful developer tools and want to help bring intelligent automation to millions of users wed love to meet you!
If youre interested in advancing your career at a fast-growing profitable impact-driven company then read on
Even though our job description may seem like were looking for a specific candidate the role inevitably ends up tailored to the person who applies and joins. Regardless of how well you feel you fit our description we encourage you to apply if you meet these criteria:
About You
You have 7 years of experience in software engineering with at least 5 of those years dedicated to building distributed scalable cloud based web applications. You possess strong communication skills problem-solving abilities and a drive to deliver outstanding customer experiences for both external users and internal stakeholders.
You have at least 1 year of experience working with large language models (LLMs) to perform complex tasks in production environments. You experimented with build user facing leveraging agent architectures.
Youre familiar with underlying technologies like transformer networks attention mechanisms and how they contribute to models abilities to generate coherent responses generate function calls and perform other language tasks.
You have likely deployed evaluation frameworks for LLMs with an understanding on performance reliability and bias assessment.
You likely have experience with Retrieval-Augmented Generation (RAG) systems and understand how to optimize knowledge retrieval for improved model accuracy and speed. You likely have experience with different indexing and chunking strategies based on the systems data and goals as well as semantic search and vector databases and how they differ from traditional retrieval methods and databases.
You have experience of working through the full lifecycle of building testing deploying and scaling LLM architectures.
You can identify and document trade-offs made during the development process. You also have experience building with cloud infrastructure technologies.
You love shipping to customers. Youll be on a team focused on understanding customers needs and translating those needs from specifications into functional production-ready code. You know how to balance speed versus quality to support the features we build for our
You embody our values. At Zapier our values are at the heart of how we work together and how we think about our customers. In our remote setting they help develop trust and ensure we work and collaborate to democratize automation.
Things Youll Do
Build foundational AI toolinglike reusable frontend and backend components for AI agent experiences observability mechanisms and evaluation tooling.
You will work mostly in TypeScript. Experience isnt strictly required but it is a big plus. Comfort with typed languages and modern backend practices is a must.
Design and implement data-driven feedback loops to monitor and improve the performance reliability and safety of agent systems at scale.
Proactively identify tooling gaps and work across teams to standardize best practices for building deploying and monitoring AI-driven experiences.
Collaborate closely with engineers across product infra and data teams to ensure our AI components are reusable well-documented and easy to adopt company-wide.
Experiment with emerging LLMs and retrieval strategies helping the team evaluate when to fine-tune swap models or adjust orchestration logic.
Difference between an Applied AI Engineer and an ML Engineer at Zapier:
How do we discern between other AI-forward engineering roles like ML Engineers and Applied AI Engineers Both roles benefit from backend engineering skills and experience with LLMs.
ML engineers are expected to have more experience building data pipelines as well as experience utilizing other types of ML models beyond LLMs.
AI engineers are expected to have more full stack engineering experience which would typically include frontend experience and may only have experience working with LLMs.
How to Apply
At Zapier we believe that diverse perspectives and experiences make us better which is why we have a non-standard application process designed to promote inclusion and equity. Were looking for the best fit for each of our roles regardless of the type of companies in your background so we encourage you to apply even if your skills and experiences dont exactly match the job description. All we ask is that you answer a few in-depth questions in our application that would typically be asked at the start of an interview process. This helps speed things up by letting us get to know you and your skillset a bit better right out of the gate. Please be sure to answer each question; the resume and CV fields are optional.
Education is not a requirement for our roles; however if you receive an offer you will need to include your most recent educational experience as part of our background check process.
After you apply you are going to hear back from useven if we dont see an immediate fit with our team. In fact throughout the process we strive to never go more than seven days without letting you know the status of your application. We know well make mistakes from time to time so if you ever have questions about where you stand or about the process just ask your recruiter!
Zapier is an equal-opportunity employer and were excited to work with talented and empathetic people of all identities. Zapier does not discriminate based on someones identity in any aspect of hiring or employment as required by law and in line with our commitment to Diversity Inclusion Belonging and Equity. Our code of conduct provides a beacon for the kind of company we strive to be and we celebrate our differences because those differences are what allow us to make a product that serves a global user base. Zapier will consider all qualified applicants including those with criminal histories consistent with applicable laws.
Zapier prioritizes the security of our customers information and is dedicated to adhering to all applicable data privacy laws. You can review our privacy policy here.
Zapier is committed to inclusion. As part of this commitment Zapier welcomes applications from individuals with disabilities and will work to provide reasonable accommodations. If reasonable accommodations are needed to participate in the job application or interview process please contact .
Application Deadline:
The anticipated application window is 30 days from the date job is posted unless the number of applicants requires it to close sooner or later or if the position is filled.
Even though were an all-remote company we still need to be thoughtful about where we have Zapiens working. Check out this resource for a list of countries where we currently cannot have Zapiens permanently working.
Required Experience:
Senior IC
Employment Type
Full-Time
