Account-Based Marketing Manager, Strategic Accounts

Harmonic Security•New York City, NY

8d•Hybrid

About The Position

Harmonic Security governs AI across all platforms, including browser tabs, desktop apps, engineer-initiated agents, and embedded copilots. Their AI Governance and Control (AIGC) platform operates on the device, within interactions, and at the moment of action, monitoring AI activity in under 200ms. This provides security teams with comprehensive visibility and control over every AI surface, including agentic and MCP layers missed by traditional tools, enabling innovation without performance hindrances. The company is experiencing significant growth at the intersection of AI and cybersecurity, supported by investors like N47, Ten Eleven Ventures, and In-Q-Tel. In an era of accelerating enterprise AI adoption, real-time policy observation, control, and enforcement are critical infrastructure. Harmonic Security builds this essential technology. Their work culture is AI-First by Design, encouraging active use of AI tools for research, writing, and workflow automation. They expect new hires to be genuinely curious about AI and committed to working smarter and faster with it, whether by adopting new tools or architecting AI-centric systems. Expectations are transparent, and tools and support are provided for success. The Go-To-Market (GTM) organization aims to scale Harmonic, with marketing playing a central role. This position reports to the Director of Demand Generation and collaborates closely with the strategic sales team, focusing on the largest and most complex accounts. Having secured wins against Fortune 10 companies and now expanding to millions of end-users, the marketing approach for top-tier accounts requires precision, creativity, and a marketer who treats a named account list as their personal business portfolio, moving beyond traditional webinar and nurture tactics.

Requirements

1-5 years of B2B marketing experience, ideally account-based marketing, demand gen, or field marketing in a startup or high-growth environment
Hunger: proactive, resourceful, and willing to try multiple approaches quickly
Hands-on experience running outbound and multi-channel campaigns, and comfort in tools like Instantly, HeyReach, or similar
Genuine partnership instinct with sales, viewing reps as teammates
Sharp writing and messaging judgment: ability to translate technical stories for busy executives
Creativity and a bias for action, especially for unscalable, memorable tactics that win strategic accounts
An AI-native mindset: actively using AI tools to increase speed and experimenting with new AI applications

Nice To Haves

Experience marketing to enterprise or Fortune 500/Fortune 10 accounts
Event and field marketing experience, from dinners to conferences
Direct mail or creative physical campaign experience
Familiarity with cybersecurity, AI, or another technical category
HubSpot or similar CRM/marketing platform fluency (tool-agnostic candidates welcome)

Responsibilities

Own account-based marketing for a curated set of strategic, top-tier prospects, working as a true partner to the strategic sales reps who cover them
Build and run multi-channel account plays across email (Instantly), LinkedIn (HeyReach), direct mail, events, and creative one-off tactics tailored to individual accounts
Turn Harmonic's story, deep AI usage intelligence with the guardrails enterprises need, into messaging that lands with senior security and business buyers
Partner with sales on account selection, contact mapping, and the plays most likely to open and advance each account
Plan and execute events, dinners, and field activities that get strategic buyers in the room
Design and ship direct mail and physical touchpoints that break through where digital can't
Track engagement and pipeline impact at the account level, and double down on what works
Bring new creative ideas to the table constantly, and test them fast