Cihan Turkmen

Driving Planning & Forecasting Excellence in Aerospace | ERP/MRP Expert | Cross-functional Leader | Continuous Improvement | Investor | Entrepreneur | Analyst

London Area, United Kingdom

About

As a Senior Planning Professional with 10+ years of international experience, I specialize in integrating data, people, and processes to drive operational efficiency and demand accuracy.I have a strong track record across demand forecasting, S&OP cycles, and inventory optimization especially within complex, high-regulation environments such as aerospace and manufacturing. My core strengths include transforming complex data into actionable planning strategies, collaborating across functions, and supporting scalable supply chain solutions.With deep experience in ERP/MRP systems and BI tools, I support decision-making at both tactical and strategic levels. I’ve also completed 40+ certifications in project management, analytics, and business strategy, including Six Sigma Green Belt, Agile Planning, and Sustainable Operations.I believe in continuous improvement, stakeholder alignment, and learning-driven growth.I’m always open to connecting with like-minded professionals and exploring opportunities where I can contribute to innovation and performance improvement in planning and operations.

Experience

  • AMETEK Airtechnology (Full-time · 7 yrs 9 mos)
    • Strategic Demand Planner
      Apr 2026 - Present · 3 mos

    • Senior Aftermarket & Inventory Planner
      Apr 2024 - Apr 2026 · 2 yrs 1 mo

      Experienced planning professional leading demand and inventory optimization across the aerospace aftermarket. Responsible for aligning forecasting strategies with business goals, improving service levels, and supporting product introduction planning through cross-functional collaboration. Led Aftermarket forecasting and demand planning using ERP/MRP systems to reduce inventory waste and improve forecast accuracy. Supported S&OP cycles by providing validated demand inputs, collaborating with stakeholders across production, engineering, and supply chain. Improved inventory layout and warehouse flow through data-led process redesign initiatives. Delivered “what-if” analysis to aid strategic decisions for new product introductions and capacity planning. Ensured KPI compliance and forecast accuracy by implementing measurable performance tracking systems. Drove cost optimization initiatives aligned with company goals, minimizing excess stock and obsolescence.

    • Lead Aftermarket Planner and Materials Controller
      Apr 2022 - Apr 2024 · 2 yrs 1 mo

      Led a team of planners and materials controllers within the Aftermarket division, focusing on demand alignment, MRO operations, and continuous process improvement. Played a key role in ensuring planning consistency, data integrity, and service level enhancement across functions. Managed and trained a cross-functional team to enhance planning workflows and meet department KPIs. Streamlined MRO planning through implementation of Kanban systems, kit creation, and BOM alignment. Collaborated with supply chain, manufacturing, and customer service teams to proactively resolve demand-related issues. Maintained high forecast accuracy through structured data reviews and performance dashboards. Improved turnaround time (TAT) and on-time delivery (OTD) by aligning planning outputs with operational goals. Conducted WIP audits, inventory checks, and system data validations to ensure planning accuracy and operational reliability.

  • TUSAŞ - Türk Havacılık ve Uzay Sanayii A.Ş. / Turkish Aerospace Industries, Inc. (TAI) (Full-time · 18 yrs 5 mos)
    • Production Planning and Material Controller
      Jun 2010 - Sep 2018 · 8 yrs 4 mos

      Led production planning and material control for high-complexity aerospace projects. Oversaw logistics and warehouse operations for over 10,000 stock items, including hazardous and regulated materials. Delivered planning support to large-scale programs for military and civilian aircraft. Managed production and warehouse planning across multi-program environments, including F-16 assembly and modernization (Peace Onyx), ATR72 naval conversion, and HÜRKUŞ. Maintained inventory accuracy (97%) through continuous auditing and ERP-based control processes. Conducted material forecasting, procurement planning, and prioritization to meet strict production schedules. Researched and implemented alternative material solutions compliant with aviation and safety standards. Led onboarding and ERP/MRP training for new staff, improving operational fluency and procedural compliance. Optimized warehouse layout and flow, reducing fulfillment time by 40% through lean methodologies.

    • Receptionist / Shift Supervisor
      May 2000 - Jun 2010 · 10 yrs 2 mos

      Managed hospitality operations at TAI guesthouses, ensuring smooth day-to-day service delivery. Supported logistics coordination for visiting teams and VIP guests, contributing to overall organizational efficiency.

  • Logistic Specialist at Pastoral Gida
    Sep 1998 - Feb 2000 · 1 yr 6 mos

    Oversaw daily logistics and supply operations, contributing to inventory flow, vendor coordination, and distribution efficiency in the food industry.

  • Non-Commissioned Officer / Sergeant at Turkish Army
    Feb 1997 - Jul 1998 · 1 yr 6 mos

  • Waiter, Barman, Chef Intern, Hotel Intern at Various
    1993 - 1997 · 4 yrs