Senior Product Engineer

ROLE AT A GLANCE

What: As a Senior Product Engineer, you’ll help us end manual recruitment, so every product team can spend its time learning from users instead of chasing them.

Impact: You'll shape how thousands of researchers and product builders run their first agent-led study.

Team: You’ll join our Engineering team and work closely with Product, Design, and GTM. At our size, the lines between them ebb and flow, so you’ll always be working cross-functionally.

Where: Remote-first across the US, with hubs in New York and Boston.

ABOUT RALLY

In a world where anyone can ship anything, the teams building closest to their users win. But talking to users is still much harder than it should be. Pulling lists, chasing consent, juggling calendars, sending incentives: it's why most product teams skip research altogether.

We're here to end manual recruitment.

Rally is agentic research infrastructure: the system that lets companies talk to their own users safely, at any scale. Tell Rally what you want to learn, and Rally Agent builds the study, finds the right participants, and handles outreach, scheduling, and incentives, all within your company's guardrails. It works from the Rally app, from Slack, or from the AI tools you already use. Agents handle the busywork, so people focus on the human parts: learning from each other.

Today, teams at Google, Meta, Figma, Ramp, Perplexity, and MongoDB run their research on Rally. And we're building a company that lasts, investing in the product and the team for the long haul.

THE OPPORTUNITY

We believe teams will always need to talk to their users, however far AI goes, and most companies still don't have a safe way to let team members outside of traditional UX Research do it. Rally Agent and MCP are live, and we're going after the biggest companies in the world. The product is catching up to the vision, with plenty of exciting challenges still ahead.

That's where you come in. You'd join our Product Engineering team, a small, high-ownership team that's a little obsessed with our users. You’d report to our Head of Engineering, and work side by side with the researchers and product builders who use Rally every day, and yes, we use Rally to build Rally.

Our product is the control plane for user research: the layer that enforces governance, permissions, consent, and contact rules for every agent that touches a company's participants. As a Senior Product Engineer, you’ll lead features end to end, from shaping the problem with Product and Design to shipping it and scaling it for some of the most demanding research teams in the world. Across each team at Rally, the work has the same core: building product in an AI-native environment, from core app features to the agents and MCP tools that power us.

WHAT YOU’LL DO

- Own features end to end: scope them with Product and Design, build them, ship them, and stay with them after launch to ensure reliability.

- Scale features from MVP to enterprise grade, holding a high bar for security, privacy, reliability.

- Work across the backend stack (Node, GraphQL, Prisma) and contribute to AI agent and MCP tool development to turn concepts into working product.

- Work AI-first, using tools like Claude Code and Codex to move faster, while owning the quality and correctness of everything you ship.

- Keep the team in the loop: write clear specs and updates, flag risks early, and share what you learn so the whole company gets better, together.

WHAT YOU’LL BRING

- 6+ years of experience architecting, building, and sustaining complex, production-grade web applications.

- Strong full-stack engineering skills in JavaScript/TypeScript. You’re comfortable across the UI, API, and database layers, and you pick up new tools quickly.

- Hands-on experience building with AI tools every day, plus a clear point of view on keeping quality high: how you review, test, and verify AI-generated work.

- A track record of leading major initiatives and p