Serotonin is a performance-driven creative agency built for ambitious consumer brands. We’ve worked with brands like ASSOS of Switzerland, Rudys, British Cycling, New & Lingwood, Riverstone Living and many more. We believe good creative is what gets you noticed; performance is what keeps you growing. We do both. We’re growing fast, moving fast, and need leaders who can think big and roll their sleeves up. The Role We’re looking for a Post Creative Strategist - a social-obsessed creative-thinker who lives online and knows how to turn community insights into scroll-stopping work. This isn’t just a content scheduling job. It’s about thinking and moving like a creator. You’ll be in-platform every day, spotting trends, building community, fuelling influencer campaigns, and pitching ideas that feel more TikTok than TVC. You’ll collaborate across strategy, performance, content, and creative to build always-on social calendars that actually work - not just tick a box. If you thrive in a fast-paced agency, love turning real-time insight into reactive ideas, and believe brand isn’t what you say but what you post, then this could be your moment. What You’ll Do Content & Channel Strategy Own the social strategy for multiple clients - from daily TikToks to long-form content campaigns Build monthly content calendars backed by insight, trends, and creative thinking Produce copy and caption banks that sound more like the internet and less like a press release Work with our creative and production teams to brief, plan, and execute content days/shoots Analyse what works (and what flops) across platforms and feed it back into your thinking Community, Culture & Trends Stay glued to the algorithm - know what’s blowing up, what’s getting binned, and why Run daily social listening and trend spotting sessions Engage with followers, reply to comments, and help brands sound human Manage influencer outreach, product seeding, and brand partnerships Strategy & Client Thinking Bring the voice of the customer into every campaign Write decks, insights, and creative rationales that sell the idea and the outcome Support client reporting with performance breakdowns, trend commentary, and forward recommendations Be the go-to for social-first ideas that ladder up to business results What You Bring 2 years in a similar social-first role - whether at an agency, in-house, or freelancing A finger on the pulse of TikTok, Instagram, YouTube Shorts, and whatever’s next Experience crafting content calendars, writing copy, and planning influencer or brand campaigns An instinct for what makes good content - plus experience with basic tools like Canva, CapCut, or Adobe Suite Confidence in front of clients and collaborators - you can pitch ideas clearly and back them up with insight Comfortable working fast, flexibly, and cross-functionally Strong understanding of marketing principles, and how brand and performance can work together The Package Private health insurance including mental health support Salary is £26-30k (depending on experience) 14 day Work From Anywhere policy Pet-friendly Manchester office Flexible start-end times Free breakfast and stocked snacks Regular team socials and wellness perks Opportunity to shape the agency and scale a high-performing campaign team A chance to lead at one of Manchester’s fastest-growing performance agencies