Supply Planner (12-Month FTC)

London, United Kingdom – Hybrid (3 days per week in-office – St James Park)

At Theramex we are driven by a clear purpose by improving the lives of women around the world through innovative and accessible healthcare. As one of the fastest‑growing global specialists in Women’s Health, we combine the agility of a scale‑up with the impact and ambition of a private‑equity‑backed organisation. Here, your work translates into real‑world outcomes - shaping portfolios, influencing strategic direction, and driving meaningful change for patients. You’ll join a collaborative, high‑performing team that values expertise, encourages fresh thinking, and empowers people to lead with ownership. If you are motivated by purpose, growth, and the opportunity to make a lasting difference, Theramex offers a place where your contribution truly matters.

About you

• Degree educated, ideally in a scientific, engineering, mathematics, or related discipline.

• Professional supply chain qualification (e.g., APICS, CIPS, CPIM, or equivalent) preferred.

• Proven experience in Supply Planning and Inventory Management roles.

• End-to-end supply chain planning experience highly desirable.

• Strong understanding of pharmaceutical supply chain and market dynamics.

• Solid knowledge of procurement and supply chain planning processes.

• Strong analytical and problem-solving skills.

• Ability to work effectively under pressure and manage competing priorities within tight deadlines.

• Highly organized, detail-oriented, and capable of managing multiple tasks simultaneously.

• Proactive and self-motivated, with the ability to work independently.

• Continuous improvement mindset with a focus on efficiency and right-first-time execution.

• Strong communication and stakeholder management skills.

• Proficient in planning systems and ERP platforms, ideally Microsoft Dynamics.

• Results-driven with a focus on delivering customer service and supply chain KPIs.

About the role

Responsible for managing the supply plan and end-to-end inventory levels across the Theramex product portfolio, ensuring optimal stock levels within direct market warehouses and the timely delivery of distributor market orders. The role involves running monthly Material Requirements Planning (MRP) processes in Microsoft Dynamics 365 (D365), placing purchase orders, and managing order fulfillment with third-party manufacturers. Acting as the primary operational interface with external manufacturing partners, the position requires balancing supply requirements with vendor capacity constraints and negotiating practical solutions to support business needs. Working closely with cross-functional colleagues, the role ensures key deliverables are achieved while maintaining clear, timely, and accurate communication with market stakeholders regarding supply plans and potential risks. Additionally, the position plays a lead role in the monthly Sales & Operations Planning (S&OP) process, providing both detailed operational insights and executive-level summaries of short- and long-term supply plans to support informed business decision-making.

Key Duties and Responsibilities

• Plan finished product replenishment using Microsoft Dynamics.

• Run capacity planning and optimize orders against supplier constraints and MOQs.

• Coordinate artwork requirements to ensure alignment with supply plans.

• Create and manage purchase orders, maintaining accurate delivery dates.

• Ensure cost-effective, on-time, in-full order delivery.

• Plan and procure raw materials, APIs, and semi-finished products.

• Manage inventory and forward cover, escalating supply risks as required.

• Maintain planning master data, including lead times, BOMs, MOQs, and delivery dates.

• Identify and drive planning process improvements.

• Ensure accuracy of supply planning data, reports, and KPIs.

• Build strong supplier and CMO relationships, leading regular review meetings.

• Monitor manufacturing performance and mitigate supply risks and delays.

• Balance demand requirements with supplier capacity and develop contingency plans.

• Partner with Demand Planning to manage supply constraints and delivery updates.

• Coordinate with Logistics to arrange transport and expedite critical shipments.

• Work with Quality teams to ensure timely stock release.

• Support the S&OP process through supply planning inputs and portfolio updates.

• Collaborate with Supplier Relationship teams on issue resolution and continuous improvement.

• Manage intercompany purchasing transactions within the ERP system.

• Provide ad-hoc analysis and supply chain support as required.

• Maintain a proactive and structured approach in a fast-paced environment.

• Independently manage supply planning for an assigned product portfolio.

• Deliver customer service targets and supply chain KPIs.

What does our team say about life at Theramex?

“Having now been with Theramex for a few months, I’m really enjoying my time here. Right from the outset, the onboarding experience, induction, and orientation have been brilliant, and I already feel like I am making the most of opportunities to add value to the business in meaningful ways. Theramex has a friendly and supportive vibe and is a place where I feel supported and valued.”

Umut Tarakcilar, Senior Treasury Analyst

Why Join Us?

• A fast-paced environment with broad exposure, giving you opportunities to develop professionally - even outside your core area of expertise

• A culture that supports learning, celebrates success, and recognizes performance

• Opportunities for driven and talented professionals to contribute to our exciting journey

Benefits & Perks

• Competitive reward package, including:

  • 25 days holiday + 8 bank holidays

  • Private Health Insurance for employee and family members

  • Pension contribution: 10% company + 5% employee (auto-enrolled from day one)

  • Hybrid Working

  • Cycle to Work Scheme

  • Engaging employee experience to come together as a community: in-office events, shared learning and much more!

Apply Now! Ready to make a meaningful impact in Women’s Health? We’d love to hear from you. Apply today and shape the future with Theramex.