(Senior) Strategic Partner Manager (f/m/d)

At Moss, we give finance professionals the power to automate their day-to-day and make forward-thinking decisions.Our culture is what makes that possible: we play to win, we obsess over quality, and we win as One Moss, and it works. Moss closed a €35 million Series C in August 2026, crossing a €1 billion valuation, and became one of Europe's fintech unicorns. Join us for what's next.London, UKMoss is building its strategic partnerships function from scratch, and this is one of the first two hires shaping it. You'll take target platforms from zero relationship to live, revenue-generating integration, owning the sourcing, business case, and delivery for each one.This is a build phase: you'll define your own playbook rather than follow one. You'll report to the Senior Director Partnerships and work closely with Product and Engineering on integration scope, and with the Channel team where partnerships overlap with existing ERP integrators.Your responsibilitiesSource and build strategic partnerships from scratch, identifying platforms that fit Moss's customer base and growth prioritiesNavigate complex partner organisations to reach the right decision makers, from founders and C-level contacts at smaller platforms to Heads of Partnerships at larger onesBuild the commercial and technical case for each partnership and secure buy-in from both Moss leadership and the partner's stakeholdersOwn each partnership end-to-end, from an initial referral or lightweight integration through to a live, revenue-generating relationshipPartner with Product and Engineering to scope integration requirements and manage delivery against Moss's API and roadmapCollaborate with the Channel team where accounting-platform integrators already exist, to avoid overlap and align on commercialisationDefine and adjust your own playbook, prioritising partners by revenue potential and strategic fit as the market picture sharpensAbout you5+ years in business development or partnerships within B2B SaaS, finte