About us

At Sierra, we’re creating a platform to help businesses build better, more human customer experiences with AI. We are primarily an in-person company based in San Francisco, with growing offices in Atlanta, New York, London, Paris, Madrid, Munich, Singapore, Japan, and Sydney.
We are guided by a set of values that are at the core of our actions and define our culture: Trust, Customer Obsession, Craftsmanship, Intensity, and Family. These values are the foundation of our work, and we are committed to upholding them in everything we do.
Our co-founders are Bret Taylor and Clay Bavor. Bret currently serves as Board Chair of OpenAI. Previously, he was co-CEO of Salesforce (which had acquired the company he founded, Quip) and CTO of Facebook. Bret was also one of Google's earliest product managers and co-creator of Google Maps. Before founding Sierra, Clay spent 18 years at Google, where he most recently led Google Labs. Earlier, he started and led Google’s AR/VR effort, Project Starline, and Google Lens. Before that, Clay led the product and design teams for Google Workspace.

What you’ll do

You’ll be the regional voice experience designer for EMEA deployments, helping customers ship multilingual voice experiences faster while keeping quality high. You’ll work with other Agent Experience Designers on the voice team, and be accountable for voice quality on multiple customer deployments.

Drive multilingual launches in EMEA: Own voice readiness across a portfolio of EMEA customers and languages, coordinating language launches, quality checks, and ongoing iteration.
Run voice selection and improvement loops: Evaluate providers and voices for regional needs, recommend providers, models and voices, and push improvements with engineering and vendors.
Conduct scalable voice design and selection sessions: Run high-touch sessions for strategic customers, with a focus on enablement, not ownership.
Create regional best practices: Capture and document EMEA-specific voice guidance (text normalization, language and accent families, cultural norms, regional customer experience expectations).
Set the bar for great EMEA voice: Partner with Voice Engineering and deployment teams to triage and resolve voice issues quickly, with clear artifacts and a bias to ship quickly while improving systems.

What you’ll bring

3+ years experience in experience or conversation design in a hands-on product craft role.
Strong regional and multilingual instincts; high taste and high rigor for language, including: English (UK/International), French, German, Spanish, Italian, Portuguese, Arabic, Dutch and Nordic languages.
Ability to handle multiple customer contexts simultaneously while staying organized.
Confidence working directly with customer stakeholders in co-creation settings.

Even better…

Experience with speech synthesis and conversational agents.
Deep expertise with EMEA language families.
Familiarity with provider and voice evaluation.
Linguistics, sound editing, and/or musical background.
Experience enabling other teams via playbooks, training, and internal tooling.

Our values

Trust: We build trust with our customers with our accountability, empathy, quality, and responsiveness. We build trust in AI by making it more accessible, safe, and useful. We build trust with each other by showing up for each other professionally and personally, creating an environment that enables all of us to do our best work.
Customer Obsession: We deeply understand our customers’ business goals and relentlessly focus on driving outcomes, not just technical milestones. Everyone at the company knows and spends time with our customers. When our customer is having an issue, we drop everything and fix it.
Craftsmanship: We get the details right, from the words on the page to the system architecture. We have good taste. When we notice something isn’t right, we take the time to fix it. We are proud of the products we produce. We continuously self-reflect to continuously self-improve.
Intensity: We know we don’t have the luxury of patience. We play to win. We care about our product being the best, and when it isn’t, we fix it. When we fail, we talk about it openly and without blame so we succeed the next time.
Family: We know that balance and intensity are compatible, and we model it in our actions and processes. We are the best technology company for parents. We support and respect each other and celebrate each other’s personal and professional achievements.

What we offer

We want our benefits to reflect our values and offer the following to full-time employees:

Flexible (unlimited) paid time off
Medical, dental, and vision benefits for you and your family
Life insurance and disability benefits
Retirement plan dependent on country of employment
Parental leave
Fertility and family building benefits through Carrot
Lunch, as well as delicious snacks and coffee to keep you energized
Discretionary benefit stipend giving people the ability to spend where it matters most
Free alphorn lessons

These benefits are further detailed in Sierra's policies, may vary by region, and are subject to change at any time, consistent with the terms of any applicable compensation or benefits plans. Eligible full-time employees can participate in Sierra's equity plans subject to the terms of the applicable plans and policies.

Be you, with us

We're working to bring the transformative power of AI to every organization in the world. To do so, it is important to us that the diversity of our employees represents the diversity of our customers. We believe that our work and culture are better when we encourage, support, and respect different skills and experiences represented within our team. We encourage you to apply even if your experience doesn't precisely match the job description. We strive to evaluate all applicants consistently without regard to race, color, religion, gender, national origin, age, disability, veteran status, pregnancy, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.

Agent Experience Designer, Voice (Multilingual)