Founding GTM Engineer in Cambridge

Responsibilities

Revenue Operations is the engine room of Proton’s go-to-market. We’re hiring our first GTM Engineer to design, build, and scale the systems that power it: the data, workflows, dashboards, and AI‑native infrastructure that make every BDR, AE, and CSM faster every quarter. This is a senior IC role. You’ll write the workflows, build the dashboards, and ship the systems yourself, partnering closely with Marketing, Business Development, Sales, CS, and Finance.

Today, much of this work runs through an external agency. You’ll absorb that scope, exceed it, and go far beyond – into clean data architecture, forecasting, deal desk, comp, and AI‑native ops that compound over time.

• Build AI agents from scratch that autonomously run GTM workflows: lead enrichment and scoring, outbound campaign generation, pipeline hygiene, signal monitoring, forecast updates, comp queries, deal desk triage.
• Own the HubSpot stack end‑to‑end: data models, automations, reporting. You read every release note and ship the workflow by Friday.
• Build outbound automation, enrichment pipelines, signal‑driven plays, and lead scoring in Clay. Ship clean systems without over‑engineering.
• Own CRM hygiene end‑to‑end: dedupe, validation rules, field governance, ownership integrity, so dashboards, forecasts, and outbound plays sit on data reps actually trust.
• Instrument the lead to opportunity to closed‑won funnel and own pipeline health, forecasting hygiene, and segment‑level performance.
• Build new‑business and net revenue retention forecast models the executive team trusts in board prep, with documented and defensible assumptions.
• Design territory, coverage, and governance: accurate segmentation, clean ownership transitions, documented operating rhythms.
• Stay on the cutting edge of agentic AI: model capabilities, tool‑use patterns, multi‑agent orchestration, MCP, evals, and bring what you learn into production fast.
• Build reusable agent infrastructure and documentation so the GTM team can operate and trust what you’ve built.
• Take projects from 0 to 1: prototyping, deployment, monitoring, iteration.

Benefits

• Company stock options: We believe everyone should own a part of something they help build, so we offer company equity to all employees.
• Flexible schedule: Work is important to us. As is being flexible. We know life doesn’t always land outside of a 9‑5 schedule and make space for you to live your life.
• Unlimited Required PTO: We offer unlimited PTO, and we make sure everyone takes at least 2 weeks off per year.
• Company wellness days: In addition to company holidays, we offer wellness days, when the whole company takes a day off to rest and recuperate.
• 12 weeks paid parental leave: 12 weeks paid parental benefit for all parents (birthing, non‑birthing, adopting, fostering).
• Health benefits: Get access to great healthcare benefits.
• 401k with employer contribution: We believe it’s important to help our team plan for the future. For U.S. employees (for now), we directly contribute a 3% match of your salary to a 401k.
• Company‑paid off‑sites: Enjoy in‑person brainstorming and team‑building. All expenses covered so you can focus on bonding with the entire team.

Qualifications

• Clay is muscle memory; you can describe Clay tables you’re proud of and why.
• You’ve built revenue systems from scratch – not just maintained someone else’s.
• You have a deep passion for AI: you keep up with the latest releases, experiment constantly, have fully integrated AI into your workflows, and vibe code on the weekend.
• You’re a HubSpot expert at the architecture and admin level; you probably have opinions about associations.
• You’ve got strong data intuition and clear executive communication: you know what matters, what’s noise, and how to translate one into the other.
• You bias toward ownership, urgency, and shipping in ambiguity.
• You have production experience with Claude or comparable models (automation, enrichment, dashboards, agentic workflows, MCP servers).