You will own the end-to-end commercial relationship for Siena’s highest-value strategic accounts. Operating as part of an elite “pod” alongside a deployment strategist, you will drive net dollar retention, lead expansion negotiations, and build deep executive trust. This role is perfect for a technical, commercially-minded athlete who thrives in fast-paced startup environments.
Strategic Account Manager at Siena AI
Siena AI is redefining customer experience as the Agent of Record for brands like Spanx and Brooklinen. We're looking for a Strategic Account Manager in London to own the commercial growth of our highest-value accounts. If you have 3+ years of enterprise SaaS experience, a track record of closing $100k+ deals, and hands-on AI fluency, this is your chance to join an elite, distributed team moving at lightning speed. You'll work alongside ex-Gorgias leaders to scale a multi-agent stack that turns CX into a revenue driver.
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Location
London, United Kingdom
Compensation
Not Disclosed + Equity
Company
Siena AI
Role overview
Siena AI (using the domain siena.cx) is an autonomous, empathic AI customer service and customer experience platform designed for commerce brands. It provides AI agents that automate customer interactions across email, chat, SMS, social media, and other channels, handling use cases such as product information, order tracking, address changes, returns and exchanges, subscription and retention management, and social media conversations. The platform embeds into existing help desks like Zendesk, Gorgias, Kustomer, Gladly, and Dixa, consolidating the CX stack and enabling brands to resolve most customer inquiries end-to-end using generative AI while maintaining each brand’s unique voice through AI personas. Siena’s mission is to humanize the internet by turning customer interactions into meaningful relationships, combining human-like empathy with advanced LLM-powered automation to improve efficiency, increase loyalty, and optimize support operations for direct-to-consumer and other commerce-focused businesses.
What you will do
- Own the commercial relationship for a portfolio of Strategic accounts, driving net dollar retention (NDR) and hitting expansion quota targets.
- Build durable relationships with executive decision-makers, navigating complex organizational maps to ensure Siena’s value is recognized before the renewal conversation.
- Partner with a deployment strategist in a “Siena pod” to translate customer business problems into technical execution plans and measurable ROI.
Who this is a fit for
- Brings 3+ years of experience in account management or commercial roles for complex SaaS, specifically managing high-value enterprise accounts and $100k+ deals.
- Possesses deep industry knowledge in e-commerce or CX and thrives in fast-paced, ambiguous startup environments where they can act as a self-directed athlete.
- Demonstrates high AI fluency, with hands-on experience building agents or automating workflows beyond basic prompt engineering to optimize customer outcomes.
Why this role is remarkable
- Join a category-defining startup building the “Agent of Record” for CX, working with elite consumer brands like Spanx, FIGS, and Brooklinen.
- Work in a high-leverage, distributed environment led by founders from e-commerce leaders like Gorgias, operating at the cutting edge of production AI.
- Enjoy true autonomy as the commercial lead for Siena’s highest-value accounts, with access to premium AI tools and a dedicated learning budget.
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If your profile’s a match and Siena AI wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.