Matt Mascharka
Chief Financial Officer & Chief Operating Officer
Metrics-Driven OpsFinancial StrategyEfficiency & Profitability
A fourth-generation leader at JSC, Matt oversees the company’s financial direction, operational performance, and strategic growth initiatives. Since 2017, he has strengthened internal controls, built a metrics-driven culture, and guided key investments that improve efficiency, profitability, and organizational alignment. His leadership ensures JSC remains competitive, disciplined, and prepared for the future.
Edward Mascharka IV
Director of Service
Service OperationsService & PMContinuous Improvement
Edward leads JSC’s equipment service and preventative maintenance programs, ensuring reliable repairs, consistent uptime, and a strong service experience for customers. He oversees daily service operations, drives communication and process improvement, and partners with operations and sales to keep customers’ equipment running at peak performance.
Jen Crowers
Director of Customer Service
Customer Experience & SupportOrder Accuracy & Issue ResolutionCross-Functional Coordination
Jen leads JSC’s customer service operations, overseeing order processing, account support, and day-to-day issue resolution for customers across the region. She works closely with sales, operations, and service to ensure orders flow smoothly, questions are answered quickly, and customers receive a consistent, reliable experience from start to finish.
Thomas Rosenthal
Director of Marketing & Customer Success
Growth & Digital StrategyCustomer Lifecycle & ExperienceRevenue & Sales Enablement
Tom drives JSC’s strategic growth by unifying marketing, customer success, and data-driven decision-making across the organization. He leads initiatives that improve customer onboarding, retention, and digital engagement while building the systems, analytics, and cross-team collaboration that strengthen JSC’s long-term customer relationships and operational performance.
Greg Eggleston
Director of Purchasing
Vendor PartnershipsInventory & Demand PlanningCost & Margin Management
Greg leads JSC’s purchasing strategy, managing key vendor partnerships and negotiating programs that support strong margins and reliable product supply. He collaborates closely with sales, operations, and finance to optimize inventory levels, forecast demand, and ensure customers always have access to the products they need.
Riley Dunbar
Director of Manufacturing
Production & SchedulingQuality & Process ControlEfficiency & Continuous Improvement
Riley leads JSC’s manufacturing operations, overseeing production schedules, quality standards, and process optimization across the AMGO and LICO chemical lines. He works closely with purchasing and operations to ensure consistent, high-quality output, safe manufacturing practices, and reliable on-time production that supports both customer demand and company growth.
Eric Pavlik
Director of Operations
Warehouse Operations & LogisticsFulfillment Accuracy & On-Time DeliveryProcess Improvement & Operational Efficiency
Eric oversees JSC’s day-to-day warehouse and logistics operations, ensuring orders are picked accurately,
delivered on time, and handled with care. He leads workflow optimization, coordination with purchasing and
customer service, and continuous improvement across the distribution network. His hands-on leadership drives
the operational consistency that customers rely on.
Nick Hink
Sales Manager
Sales Leadership & CoachingCustomer Growth & Territory DevelopmentPipeline Management & Revenue Execution
Nick leads JSC’s sales team, guiding account strategy, customer development, and daily sales execution.
He supports reps with training, territory planning, and deal strategy while fostering strong collaboration
across marketing, operations, and customer service. His focus on accountability, communication, and
proactive customer engagement drives sustainable revenue growth.
Terry Sova
Director of Information Technology
Systems Architecture & Data IntegrityERP Management & Business IntelligenceDigital Transformation & Operational Support
Terry leads JSC’s technology strategy, overseeing the DDI Inform ERP system, data governance, reporting
infrastructure, and cross-department technical support. He partners with leadership to modernize systems,
streamline processes, and equip teams with the tools and insights needed for efficient, data-driven
decision-making. His expertise forms the backbone of JSC’s digital operations.