Founding Product Manager

Sandstone•New York, NY

23h•$200,000 - $300,000•Onsite

About The Position

Sandstone is seeking a Founding Product Manager to help realize its vision of a single pane of glass for in-house legal teams for legal work and institutional knowledge. The company already has a strong engineering, legal, and design team and is looking for a disciplined product manager to bring the pieces together. This role is for individuals who are hands-on and eager to execute strong ideas quickly. The product manager will help build capacities for user experience research, cross-functional communication, scoping, and risk mitigation, focusing on end-user workflows and identifying chokeholds to user growth. The role involves owning a product vertical, playing an integral part in the product leadership team, and potentially leading customer enterprise deployments and/or integrations. Success in this role requires thriving in an early-stage, greenfield environment with high autonomy, collaborating closely with the CTO and COO, and contributing to Sandstone's product culture, processes, and systems. The core value of "ship relentlessly" is emphasized, with an expectation that all team members are builders.

Requirements

6+ years in product management, ideally including time at an early-stage, high-growth startup—ideally one you helped carry through a step change in size.
A track record of shipping 0-to-1 products and then scaling them, with outcomes you can point to.
The ability to earn the trust of strong engineers—by being useful, by being right often, and by knowing which projects don't need you.
Comfort managing complex systems, mapping genuinely complex workflows and translating them into products that feel simple.
You have a demonstrated track record of entrepreneurship or of success in an unstructured environment - you’re hungry, low ego, and generative.
You have the empathy to understand what a customer is feeling and the emotional intelligence to know what would feel natural to them.

Nice To Haves

Experience in legal tech, legal operations, or building products used by in-house legal teams.
Technical enough to prototype, read a PR, or stress-test an approach with engineering before it becomes a spec.

Responsibilities

Own the product roadmap for one of our verticals: decide what to build, prioritize ruthlessly, and ship continuously
Set product feature timelines and team goals aggressively but pragmatically: scope feature sets thoughtfully and mitigate risks where practicable
As a member of our product leadership team, help decide the future of our product roadmap and how Product works at Sandstone: how we prioritize, how we write things down, how we decide.
Move fast on two-way doors and ship to learn. For irreversible decisions, map the scenarios, pressure-test the paths, and make the tradeoffs explicit before we commit. Both modes, deliberately chosen.
Partner with our AI & ML engineers to define what "great" looks like for agentic workflows: accuracy, reliability, latency, and the moments where a lawyer needs to stay in the loop. Help decide what we measure and hold the product to it.
Spend time with General Counsels, legal ops leaders, and the day-to-day users inside their teams. Sit in on sales and post-sales calls. Study how our end users work in real life, and turn that into the next set of priorities
Work closely with Engineering, Design, our Forward-Deployed Engineers, and GTM teams; make sure the right hand knows what the left hand is doing