--- title: 'Founding Growth Lead at Kastle' canonical: 'https://feeny.ai/job/founding-growth-lead-kastle-san-francisco-x71qwr2s6j58' type: 'job' last_seen: '2026-09-26' --- # Founding Growth Lead at Kastle - **Company:** Kastle - **Location:** San Francisco, CA - **Employment:** full-time - **Work type:** onsite - **Posted:** 2026-09-25 - **Last confirmed live:** 2026-09-26 - **Apply:** https://jobs.ashbyhq.com/kastle/2277f75c-be5c-47e3-8fd0-f71b74db3d68 ## Job description ## About Kastle Kastle is building the AI employee for banks. We work with some of America's largest financial institutions, helping them scale their contact center and compliance operations using autonomous AI Agents that process payments, originate loans, and help customers get a world class experience during the biggest financial decisions of their lives. We've processed over $2 billion in transactions and have raised a $24M Series A led by Insight Partners and Y Combinator. If you are interested in building AI that is applied in the real world where precision, reliability, and performance matter and redefine access to credit across the world, apply below. ## About the role We’re looking for a Founding Growth Lead to build the systems and campaigns that bring Kastle into new accounts and markets. You’ll figure out who we should reach, what matters to them, and how to get in front of them. You’ll write the message, launch the campaign, build the tools behind it, measure the response, and use what you learn to improve the next one. You’ll also own the product story across our website, sales materials, newsletter, and events. This is a hands-on role with wide ownership. The right person is an excellent writer and a fast operator who can build with data, automation, and AI tools. They have the taste to make Kastle memorable and the discipline to see whether their work creates real sales opportunities. ## What you’ll do - Build a live map of our market. Identify target accounts, buyers, relationships, and opportunities across our current segments and new verticals. Keep account maps current as we meet prospects, win customers, and learn where Kastle can expand. - Create paths into important accounts. Work with our investors and broader VC network to identify relevant connections, prepare thoughtful outreach, and turn warm introductions into conversations. - Own outbound and marketing experiments. Build lists, develop a hypothesis for each audience, write the copy, and launch campaigns. Test different messages and channels by segment; track replies, meetings, and pipeline; and keep improving the targeting and positioning. - Build the growth tooling. Create agents, automations, dashboards, and workflows that help us maintain the market map, run campaigns, track leads and ads, and give sales a reliable view of what is working. - Own Kastle’s product messaging. Turn customer conversations and product capabilities into clear positioning, website copy, slides, sales materials, and a product newsletter built from scratch. - Own Kastle presence at Events. Plan and execute conferences, smaller events, and campaigns across the industries we serve. Own the audience, invitations, experience, sales preparation, and follow-up. - Find creative ways to reach buyers. Test ideas such as thoughtful gifting, podcasts, customer programs, and Kastle-hosted events. Choose ideas for the audience they reach and the conversations they can create, then execute them with care. A project you might own Build a market map that is living and auto-updates daily. Start with the accounts and buyers we want to reach. Connect them to our existing relationships, outreach, meetings, customers, and events. Create a way for the map to stay current as the team books new calls and launches new products then use it to decide which accounts to pursue and what to say to them. ## Who you are - Creative with good taste: You can develop a sharp message or an unusual campaign that feels right for a senior buyer. - Resourceful: You find a way forward one way or another. You never stop at a no. - Fast and thorough: You move quickly without losing details, deadlines, or follow-up. - Technical and curious: You’re comfortable building with data, AI tools, automations, and integrations. You can learn a new tool quickly and know when a simple system beats a complicated one. - Analytical: You care whether a campaign produces the right conversations, and you change your approach when it doesn’t. - Highly independent: You can take an ambitious goal, decide what to do first, and own the work through execution. - High energy: You enjoy talking to people, testing ideas, and making things happen in the real world. You may have worked in growth, product marketing, GTM engineering, founder’s office, or built something yourself. We care most about what you’ve personally created and the results it produced. How to apply Send your resume or LinkedIn profile and one example of a campaign, event, or internal tool you built that you are proud of. Tell us what you owned, how you made decisions, and what happened as a result. ## About Kastle ## Core Business - **Primary industry**: Consumer lending / Mortgage servicing technology (Fintech) - **Target customers**: FDIC-insured banks, independent mortgage banks (IMBs), and large consumer lenders (B2B, Enterprise) - **Mission or purpose statement**: To help traditional financial services companies better interface with their customers by automating high-volume phone calls with compliant AI agents. ## Products & Services - **Avery (Servicing Agent)**: AI voice agent that handles borrower inquiries, payment collection, escrow questions, and loss mitigation. Integrates with ICE’s MSP system. - **Collections Agent**: Automates payment reminders, engages delinquent borrowers early, and recovers past-due accounts. - **Compliance Agent**: Monitors and scores every interaction against regulations (FDCPA, TILA, UDAAP, RESPA, TCPA) for 100% QA coverage. - **Loan Officer Assistant**: Qualifies new loan inquiries and automates pre-qualification calls. - **Sentinel (QA & Compliance Agent)**: Real-time monitoring and automated scorecards for borrower calls and servicing documentation. - **Agent Builder**: Allows lenders to turn SOPs into AI agents using natural language, with no-code configuration. - **Platform features**: Omnichannel support (voice, SMS, email, chat), simulation testing, transparent observability, and integration with existing contact center, payment processor, and LMS systems. ## Market Standing - **Valuation**: Not disclosed (private startup) - **Key Metric**: Total funding of $510,000 (Pre-seed round led by Y Combinator, June 2024) - **Notable Investors/Partners**: Y Combinator (lead), ICE Mortgage Technology (integration partner) - **Growth Signals**: - Headcount: 10 employees (+66.7% YoY) - Won LendingTree’s 2024 Innovation Challenge (Nov 2024) - Featured in a16z’s February 2025 fintech newsletter on voice AI - Integration with ICE’s MSP servicing system (April 2026) - Most deployed AI voice agents in the mortgage industry (per website) - Active job postings: 8 positions, with 300% yearly increase in listings ## Competitive Advantages - **Purpose-built for compliance**: Pre-trained on key lending regulations (FDCPA, TILA, UDAAP, RESPA, TCPA) with a proprietary Compliance Engine. - **Enterprise-grade integrations**: Direct connectivity with ICE’s MSP (the dominant mortgage servicing system) and other core systems. - **Fast time to value**: Go-live in days with out-of-the-box agents that map to existing workflows. - **Transparent AI**: All responses are fully explainable with built-in reasoning, enabling audit-ready operations. - **Battle-tested track record**: Claims to have the most deployed AI voice agents in the mortgage industry, with proven metrics (70% lower cost per call, 40% lower handle time, 90%+ CSAT). ## Strategic Focus - Deepening integrations with core mortgage systems (e.g., MSP) to reduce friction for large lenders. - Scaling the AI agent workforce across the full lending lifecycle (origination, servicing, collections, compliance). - Expanding from voice to true omnichannel (SMS, email, chat) and adding more pre-built agent types. - Growing the enterprise customer base among FDIC-insured banks and IMBs. ## Why Work Here - **Culture**: Early-stage YC startup with a small, high-agency team (10 people). Founders have strong product/engineering backgrounds (Redfin, Verkada). Emphasis on building mission-critical AI for a regulated industry. - **Work policy**: Based in San Francisco (185 Channel Street). Likely in-office given the early stage and need for close collaboration. - **Notable perks/engineering culture**: Opportunity to work on proprietary inference technology, compliance engine, and real-time AI systems. Roles span applied AI, forward deployment, and product management. High ownership and impact from day one. - **Growth trajectory**: Rapid headcount growth (66% YoY), multiple open roles, and strong market traction suggest significant career growth potential. ## Sources 1. [kastle.ai](https://www.kastle.ai/) 2. [ycombinator.com](https://www.ycombinator.com/companies/kastle) 3. [linkedin.com](https://www.linkedin.com/company/kastleai) 4. [cbinsights.com](https://www.cbinsights.com/company/kastle) 5. [ycombinator.com/jobs](https://www.ycombinator.com/companies/kastle/jobs) ## Other roles at Kastle - [Head of Sales](https://feeny.ai/job/head-of-sales-kastle-san-francisco-d0xkyqh7a74w) — San Francisco, CA - [Software Engineer - Intern](https://feeny.ai/job/software-engineer-intern-kastle-san-francisco-25ekajcm3kk7) — San Francisco, CA - [Senior Product Manager](https://feeny.ai/job/senior-product-manager-kastle-san-francisco-w8f083jn8y91) — San Francisco, CA - [AI Deployments Lead](https://feeny.ai/job/ai-deployments-lead-kastle-san-francisco-dk0d9gy0kw3b) — San Francisco, CA - [Mortgage Originations Process Specialist](https://feeny.ai/job/mortgage-originations-process-specialist-kastle-san-francisco-cpcar50m80p4) — San Francisco, CA - [Founder's Office](https://feeny.ai/job/founder-s-office-kastle-san-francisco-cfysxyhxtfnp) — San Francisco, CA - [AI Trainer (Part-time)](https://feeny.ai/job/ai-trainer-part-time-kastle-remote-gawt2gvp2g56) - [Agent Product Manager](https://feeny.ai/job/agent-product-manager-kastle-san-francisco-2mq46j3a94ka) — San Francisco, CA - [Staff AI Engineer](https://feeny.ai/job/staff-ai-engineer-kastle-san-francisco-pd6as3jgcxct) — San Francisco, CA - [Enterprise Account Executive](https://feeny.ai/job/enterprise-account-executive-kastle-san-francisco-h9mz7tqdf5ww) — San Francisco, CA