Senior Recruiter

About Us Proton is building the AI infrastructure for wholesale distribution, embedded in the workflows that move nearly every physical product on the planet. Distribution is a $9 trillion industry, and the software that runs it has been stuck in the past for decades — most tools create more work than they eliminate. We unify CRM, PIM, eCommerce AI, and Order & Quote Entry AI into one platform with one data layer and one AI brain, so reps spend their time deepening customer relationships, not entering data. We hire people with high agency and high urgency. At Proton, everyone is a builder who owns problems end to end and ships AI-native software faster than anyone else in the category. The median Proton customer reports 3x profit return per dollar spent, an extra day of sales per rep per month, and “the best ROI of any tech investment in 30 years.” Hundreds of leading distributors — from family-owned shops to publicly-traded enterprises across industrial, HVAC, and electrical — run on Proton. We’re backed by Felicis Ventures (Twitch, Shopify, Opendoor) and Battery Ventures. If you want to build the brand and the content engine that shape how trillions of dollars of physical goods move through the economy, Proton is the place to do it. The Role We are seeking a strategic and hands‑on Senior Recruiter to drive our hiring strategy and recruiting execution. We’re looking for an experienced recruiter who thrives in fast‑paced, high‑growth environments to join this hybrid role in Cambridge, MA, partnering directly with our Executive Leadership team on hiring. You will own full‑cycle recruiting for high‑priority roles, lead employer branding initiatives, manage our ATS, and oversee recruiting events—all while creating a world‑class candidate experience. This role is high‑impact: you’ll be instrumental in shaping Proton’s growth and talent foundation. What You’ll Do Lead full‑cycle recruiting for critical roles across Sales, Marketing, Product, Engineering, and Operations. Partner with leadership to forecast hiring needs and create strategic hiring plans aligned to growth. Manage Proton’s overall recruiting strategy , including employer branding, recruiting events, and leveraging diverse sourcing methods to proactively attract top talent. Build and maintain a warm network of candidates, keeping an active pipeline of qualified talent engaged for current and future hiring needs. Manage and optimize Greenhouse ATS , ensuring accurate data, reporting, and efficient workflows. Continuously improve recruiting processes and candidate experience with data‑driven best practices. Serve as a trusted partner to leadership on talent market insights, compensation benchmarking, and scaling strategies . Track and report key recruiting metrics to leadership, using data to inform decision‑making. You’ll Be a Great Fit If You Have 2–5+ years of recruiting experience in high‑growth SaaS or startup environments. Thrive in creating structure out of ambiguity , and enjoy owning both strategy and hands‑on execution. Have a track record of hiring across technical and non‑technical roles . Are data‑driven, organized, and passionate about delivering an exceptional candidate experience . Enjoy building community through employer branding and recruiting events . Bring ATS experience and a focus on process optimization. Compensation & Benefits Base salary: $120,000 OTE Competitive stock options —we want you to feel like an owner. Unlimited PTO + 10 Company Paid Holidays . 401k with Employer Contribution (US only) . Medical, Dental, and Vision Insurance —Proton covers 100% of one medical plan in the U.S. and 50% for dependents. 12 Weeks Fully Paid Parental Leave for all caregivers. Company‑paid off‑sites to collaborate and celebrate together. Proton.ai participates in the E-Verify program: Notice of E-Verify Participation, Right to Work #J-18808-Ljbffr