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Hanno SiemerHS

Hanno Siemer

Site Manager (GM) / Operations Manager / Interim COO

€1,200/day
Berlin, DE
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Hanno

As an Interim COO, Site Manager (GM), or Operations Manager, I take on operational responsibility – P&L, People, Performance. Over 10 years of management experience in scaling and turnaround situations (Energy/PV, E-commerce, 3PL). Proven results: -35% costs, Go-Live of a 35,000 sqm 3PL in 6 weeks, ~+150% throughput after onboarding; managed up to 800 employees; audits & compliance including dangerous goods SOPs.

How I can help you
  • Stabilization & Scaling of sites (Ramp-ups, Turnarounds, KPI/OKR)
  • Contract Logistics (3PL/Carrier): Tenders & Price Negotiations, Service Level Agreements, Bonus/Malus
  • Efficiency Programs & Workforce Planning (Safety, Quality, Delivery, Cost)
  • Governance & Reporting to Shareholders/Board
Project Types: Interim Management/COO, Site/Operations Management, 3PL Tender & Transition (Out-/Insourcing), Network & Layout Design, Inventory/Throughput Optimization.

Working Style: Hands-on, data-driven, clear in communication and decision-making. Available for DACH region, on-site/hybrid/remote – available on short notice.
  • German

    Native or bilingual

  • English

    Fluent

Can work on-site
Berlin (up to 50km)

Experience

  • Ampere Labs – Battery Lifecycle Services
    FOUNDER & INTERIM COO (Venture Build)
    February 2025 - September 2025 (7 months)
    • Business & Financial Case up to Go-Live readiness (LOI with initial customer, offer finalized, KPI set and Go-Live plan)
    • Established Operating Model, SOPs & Compliance (dangerous goods); defined site and core team.
    • Ended 09/2025 after strategic realignment at target customer (outsourcing rejected).
    Standard Operating Procedures Contract Logistics Financial Planning Contract Design Business Planning
  • Enpal B.V.,
    DIRECTOR OPERATIONS & LOGISTICS GERMANY
    January 2024 - January 2025 (1 year)
    Berlin, Germany
    • Overall strategic and operational responsibility for all logistics processes in Germany
    • 3 new transport service providers to increase flexibility and efficiency
    • Advised Enpal Italy on market entry and logistics network setup
    Successes
    • -35% logistics costs through negotiations and continuous improvements
    • Audit readiness in security checks by credit institutions and annual inventories (external auditors)
    Contract Negotiation Cost Reduction Contract Logistics Price Negotiations Leadership
  • Enpal B.V.,
    DIRECTOR WAREHOUSE OPERATIONS
    January 2023 - December 2023 (11 months)
    Berlin, Germany
    • Management of all 6 warehouse locations
    • Tender, contract negotiation, and commissioning of a 35,000 sqm 3PL-operated warehouse with 100 employees
    Successes
    • Completion of the 3PL tender and LOI, inventory build-up and goods issue in just six weeks
    • Increase in throughput by approx. 150% after onboarding
    Operations Management Leadership Site Strategy Warehouse Management Contract Logistics

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Education

  • Dipl. Wirt.Ing. (Degree in Business Engineering)
    TU Bergakademie Freiberg
    2011
    Industriebetriebslehre, Logistik und Maschinenbau
  • Abitur (German university entrance qualification)
    Georg Büchner Oberschule, Gymnasium
    2003

Skill set

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