Working Student - Commercial Planning (f/m/d)

Who We Are Spread Group is a renowned global provider of customized apparel and lifestyle products, distinguished by our commitment to made-to-order technology. Our core business model revolves around producing precisely what our customers desire, precisely when they desire it. As pioneers in this space, we combine sustainability with on-demand personalization, enabling individuals and businesses to express their unique identities through bespoke creations. Join us to be part of a global leader in the exciting world of personalized apparel and lifestyle products! As we continue to expand our business, we are seeking a curious and passionate individual to join our team as the Working Student - Commercial Planning (f/m/d) and drive our business forward. What Will Your Role Be We are looking for a structured and commercially minded Working Student to support our Commercial Planning team at Spreadshirt. You will help ensure that promotions are set up, launched and monitored correctly across channels – and support our parcel insert and retention mailing activities from audience preparation through to operational delivery. This role is ideal for someone who enjoys combining hands-on execution with data analysis, works reliably with deadlines and has an eye for detail. You will gain practical experience in e-commerce trading, campaign operations and promotional performance analysis. What You´ll Do Promotion operations Support the planning, scheduling and coordination of promotional campaigns across relevant Spreadshirt channels. Maintain promotion schedules and ensure all required campaign information is complete and available on time. Perform live checks once promotions launch, including offer visibility, pricing, discount logic, messaging and channel implementation. Flag issues quickly, coordinate with relevant stakeholders and follow up until they are resolved. Support documentation of promotion mechanics, campaign set-ups and operational learnings. Campaigns, parcel inserts & retention mailings Support the operational preparation of parcel insert campaigns and retention mailings. Help develop, validate and clean audience files based on campaign requirements and targeting criteria. Ensure audience volumes meet the agreed quantities and that files are delivered accurately and on time. Support coordination with internal teams and external partners to ensure smooth campaign execution. Maintain clear documentation of quantities, target groups, timings and campaign status. Performance analysis & reporting Monitor daily promotional performance, including orders, revenue, conversion rate, margin and other relevant KPIs. Support the preparation of daily and campaign-level performance reports Create and maintain presentation materials for promotion reviews, planning meetings and business updates. Help identify notable performance developments, anomalies and opportunities for optimisation. Support post-campaign analysis and the documentatio