Open to opportunities

Sean Littlejohn

@seanlittlejohn

Supply chain planning manager at PLUG POWER INC. who develops production plans and makes supply risks visible with ERP data, Excel, and Power BI.

United States

Message

What I'm looking for

I’m seeking flexible remote AI evaluation and domain-expert projects.

At PLUG POWER INC., I lead planning activities supporting service production, inventory availability, and fulfillment across multiple product lines and U.S. and European operations. I develop weekly production build plans and coordinate priorities to address demand and material constraints.

I use ERP data, Excel, and Power BI to prepare operational reports and planning presentations that make supply risks and execution performance visible. I also monitor inventory, replenishment needs, supplier lead times, and shipments, escalating shortages and coordinating recovery actions.

Previously, I directed multi-shift production operations at PLUG POWER INC. and led production teams at THE MAILWORKS, where I increased output 33% through equipment upgrades and process optimization. I’m seeking flexible remote AI evaluation and domain-expert projects.

Experience

Work history, roles, and key accomplishments

Current

Planning Manager

Current

Plug Power Inc.

Jun 2024 - Present (2 years 4 months)

Lead planning activities for service production, inventory availability, and fulfillment across multiple product lines and U.S./European operations. Monitor backlogs, inventory positions, replenishment requirements, supplier lead times, and shipments, and coordinate recovery actions.

Supply Chain Planning Inventory Planning Production Planning ERP Data Analysis Excel Power BI Logistics Supplier Management

Service Production Manager

Plug Power Inc.

Sep 2021 - Jun 2024 (2 years 9 months)

Directed 60+ employees and five supervisors across multi-shift production operations. Coordinated inbound/outbound logistics, freight schedules, material readiness, and daily production priorities, and led continuous improvement initiatives.

Production Management Team Leadership Logistics Coordination Continuous Improvement 5S+Safety Workforce Development Operational Reporting

Director of Production

The Mailworks

Jun 2018 - Sep 2021 (3 years 3 months)

Led 50+ employees across three shifts in print and direct mail production. Increased production output by 33% through equipment upgrades and process optimization, and launched the 2020 Vote By Mail program with a 93.4% on-time delivery rate.

Production Management Process Optimization KPI Implementation Scheduling Resource utilization Print Production Direct Mail

Production Manager

Adirondack Beverage

Mar 2015 - Jun 2018 (3 years 3 months)

Managed operations across seven high-speed production lines serving major consumer packaged goods customers. Established a facility-wide 5S program and optimized scheduling to support 24/7 coverage while reducing overtime costs.

Production Management 5S+Scheduling Operations Management Food Safety SQF