Sr. Associate Performance Marketing

Flex•New York, NY

11h•$108,000 - $135,000•Hybrid

About The Position

Flex is a growth-stage, NYC headquartered FinTech company that is creating the best rent payment experience. Flex enables our users to pay rent throughout the month on a schedule that better fits their finances and budget. Our mission is to empower as many renters as possible with flexibility over their most significant recurring expense. We are looking for motivated individuals to help us keep our mission growing. Flex's paid marketing function is scaling fast. We're hiring a Performance Marketing Associate to be the operational backbone of the team as we scale existing channels, launch TV and radio, rebrand, and expand our product offering beyond Rent. This is a role for someone who knows paid media but is equally excited by building systems, working cross-functionally, and using AI to do it better and faster. You'll get all the upside of joining early - real ownership, real impact on growth trajectory - inside a company that already has over 2 million customers.

Requirements

4-6 years of hands-on paid social and/or search experience, with direct platform ownership (Meta and TikTok at minimum and Google ideal)
Strong analytical instincts — you reach for data before drawing conclusions and are comfortable digging into performance metrics independently
Experience coordinating across technical and non-technical partners with clear, structured communication
Genuine curiosity about AI and real examples of using it to improve how you work
High attention to detail and strong organizational habits — you manage timelines and keep workstreams on track without being asked
Experience with attribution tools or MMP platforms
Background in consumer apps, fintech, or regulated industries
Concrete examples of using AI to automate or accelerate a marketing workflow

Responsibilities

Execute day-to-day campaign management across paid channels — Meta, TikTok, Google, Apple Search Ads, and others — working alongside specialist contractors
Act as the internal coordination point across data, compliance, and engineering to support improvements in attribution, funnel performance, and platform setup
Support new channel launches and creative testing initiatives
Keep the operating system of the team running — tracking workstreams, flagging risks, and making sure nothing falls through the cracks
Use AI tools to improve efficiency and output quality across your day-to-day work