One Core Media is a fully integrated performance agency - combining SEO, Paid Media, Creative, Brand Strategy, Web Development, CRO, and Data Analytics under one roof - with teams across Canada, the US, and Europe. We’re growing fast and looking for a Senior Client Success Manager to join our team. This is a senior, client-facing role.

You'll own the relationships, the strategic communication, and the outcomes for a portfolio of accounts across multiple verticals. If you've worked in a digital performance agency, can hold your own in a conversation about paid search, programmatic, SEO, performance creative, and marketing automation - and you genuinely enjoy turning complex marketing data into explicit client conversations - this role was built for you. Your ability to build trust, translate strategy, and keep client communication aligned with performance is directly tied to both client retention and agency growth.

Serve as the primary point of contact for a portfolio of small and mid-sized business clients across multiple verticals. Lead regular performance reviews, strategy presentations, and planning sessions with clients and their senior stakeholders. Project & Account Management Manage all day-to-day operational and communication needs across your accounts with precision and accountability.

Build and maintain project plans, set priorities, assign tasks to internal specialists, and track progress to ensure every deadline is met. Monitor campaign health across paid media, SEO, creative, and web projects - escalating risks early and co‑ordinating solutions with delivery teams. Maintain accurate,



up-to-date records across the agency's project management tool.

Drive account growth by proactively identifying and closing opportunities for expanded scope, new services, and upsells - this is a core KPI for this role, not an afterthought. Build account plans that lay out the strategic growth roadmap for each client, and review them quarterly. 5+ years of experience in a client-facing role at a digital marketing or performance agency - this is non-negotiable. ~ Proven track record managing multiple mid-to-large accounts simultaneously in a fast-paced agency environment. ~ Google Ads (Search, Display, PMax), programmatic/DV360, paid social (Meta, LinkedIn, etc.), SEO programs, performance creative development, and basic marketing automation. ~ Experience working with or advising on web development and landing page optimization projects is a robust asset. ~ Proficiency in Google Workspace and Microsoft Office;

experience with a CRM and project management software (e.g., Experience in performance creative strategy (ad concepts, creative testing frameworks, creative briefs). Familiarity with marketing automation platforms (e.g., Experience working with clients in e-commerce, legal services, consumer products, or other regulated or high-competition verticals. Highly competitive salary + performance bonus - we benchmark above market and reward results. 2 - 3 days in-office at our comfortable North York location.

Corporate medical and dental benefits. Work alongside brand strategists, creatives, paid media specialists, data analysts, SEO and CRO experts, and web developers - it’s a rich, stimulating environment where great ideas come from everywhere. #

📌 Senior Client Success Manager (Toronto)
🏢 One Core Media
📍 Toronto