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An innovative AI company in Lisbon seeks a Product Manager to own and shape product areas within their AI agent ecosystem. The candidate will work on new capabilities, engage directly with customers, and ensure product success. Ideal for those looking to grow in a fast-paced environment, with support for professional development and meaningful impact.
Siena is the first intelligence layer for customer experience. We're creating an operating system of AI agents that learn, remember, and act across every customer touchpoint—from support conversations to shopping experiences to voice and social media interactions. Siena doesn't just automate support; it powers shopping agents, builds persistent customer memory, generates actionable business insights, and creates empathetic interactions that feel human. We're transforming how businesses understand and connect with their customers, turning every interaction into intelligence that makes the next one better.
We\'re a small, distributed team that punches way above our weight. Every person here has outsized impact because we\'ve built leverage into everything we do. This philosophy makes us faster and, frankly, more fun to work with. If you\'re excited about building something that doesn\'t exist yet, keep reading. We\'re building agents that don\'t just respond to customers—they remember them, learn from every interaction, and connect experiences across channels.
You\'re early in your career but ready to own real product areas at the frontier of AI and customer experience.
We welcome multiple paths:
What matters across all paths: you understand complex systems, you ship fast, you have high standards, and you want to build AI agents that interact with millions of consumers.
You have
You thrive when
The people who thrive here are curious, customer-obsessed, and take ownership without being asked. They fix problems first and explain later. They\'re direct about feedback—both giving and receiving it—because they care more about getting things right than being polite. They maintain high standards while moving at startup speed, and they build real relationships with teammates because they know that\'s how great work gets done. When things get tough, they adapt and keep pushing forward.
The people who thrive here treat AI like a natural extension of themselves. They\'ve built their own ecosystem of agents - some for research, others for debugging, writing, analysis, or writing code. They know which AI works best for what problem. Everyone gets premium accounts (ChatGPT, Claude, Perplexity Pro, Cursor, Lovable) plus a quarterly budget for new tools. But the magic happens in how we share knowledge. Demo days where someone shows off clever workflows. Slack threads about which model handles a specific use case better. Learning from each other\'s AI workflows.
At Siena, we\u2019re not just looking for people who can do a job. We\u2019re looking for people who want to break boundaries, create the future, and reshape industries. If that\u2019s you, we look forward to your application.
Siena provides equal employment opportunities to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression. We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities.