Marketing Manager

OSec•New York, NY

About The Position

OSec is an offensive security firm built for the midmarket. We help organizations understand not just where they're exposed, but what's actually at risk and what to fix first. Through our security services and Incenter, our continuous threat exposure management platform, we deliver the combination of practitioner expertise and continuous visibility that automated tools alone can't provide. The Opportunity We're a lean team. Everyone here does real work. This means you will be the marketing department, not just a supporting player. You'll work directly with our Fractional CMO and CEO to own campaign execution, drive pipeline, and build the operational foundation that makes consistent marketing possible. The strategic foundation is in place: positioning, messaging, competitive differentiation, and content infrastructure. What we need now is someone who is accountable to outcomes - campaigns that run on time, leads that move through the funnel, and programs that compound. You’ll use HubSpot as your execution engine, but pipeline is how we’ll measure success.

Requirements

5+ years of B2B marketing experience with demonstrated ownership of campaigns and pipeline, not just supporting someone else’s programs, but running them
Proficient HubSpot user - you can build workflows, manage lists, segment audiences, and pull meaningful reports. You don’t need to be a HubSpot specialist, but you need to be self-sufficient and able to learn more ways to supercharge your HubSpot usage
Operationally wired - you build systems, maintain them, and hold yourself accountable to deadlines and metrics
Strong editorial judgment - you don't need to be a great writer, but you need to recognize good writing, know when AI output needs work, and publish content you'd stand behind
Comfortable working independently in an early-stage environment where ambiguity is the norm and structure is something you help create
Enough cybersecurity fluency to engage credibly with the content - you don't need to be a practitioner, but you can't be starting from zero

Nice To Haves

Experience working with AI tools and developing workflows for marketing
Familiarity with offensive security concepts, security services, etc.
Hands-on experience running webinars and events end-to-end - from platform setup and promotion through post-event nurture
Background in a startup or early-stage company where you built programs from scratch
Exposure to ABM strategy or intent-data-driven campaign targeting

Responsibilities

Own and execute integrated, multi-channel campaigns from brief through reporting: email, content, social, and paid; with clear KPIs and targets for each program
Execute quarterly sector-themed campaigns: building the audience, coordinating assets, launching the program, and reporting on what moved the needle
Build and manage lead database growth programs: list development and acquisition, contact enrichment, and net-new audience development to support campaign scale
Support and optimize sales sequences in coordination with the business development team, ensuring leads are followed up consistently and on time
Manage the content calendar and maintain a consistent publishing cadence across blog, email, and social
Build and maintain suppression logic, send calendars, and enrollment workflows to protect deliverability and prevent list fatigue
Track and report on campaign performance: open rates, CTR, pipeline influence, and lead velocity - and bring that data to the table proactively
Manage the marketing tech stack and flag consolidation or integration opportunities as the program scales
Own HubSpot as the execution engine: database hygiene, segmentation, list management, workflow builds, and campaign deployment
Own end-to-end webinar execution for OSec programs: platform setup, registration pages, speaker coordination, promotion, live logistics, and post-event follow-up sequences
Build and manage event promotion campaigns: email invitations, landing pages, reminder sequences, and social promotion to maximize registration and attendance
Coordinate industry event participation as needed: conference logistics, booth materials, pre/post-event email campaigns, and on-site support coordination
Track attendee engagement and feed qualified registrants into HubSpot workflows for appropriate nurture or sales follow-up
When needed, repurpose webinar and event content into additional marketing assets (recap blog posts, clips, email follow-ups, and social content) to extend the value of each program
Support execution of partner co-marketing programs: coordinating timelines, deliverables, and approvals for OSec
Execute joint campaigns to partner lists as needed, including HubSpot setup, segmentation, send coordination, and post-send reporting
Support maintenance of partner-facing content library: help to keep materials current, on-brand, and easy for partners to find and use
Support tracking of partner campaign performance and surface insights that help inform which relationships and program types are generating real pipeline value
Maintain brand consistency across all marketing touch points (web, email, social, and sales collateral) and provide light support for executive visibility and PR coordination as needed