• Develop and execute comprehensive account strategies, including objectives, growth plans, and tactical actions to expand revenue while maintaining margin targets • Own overall territory performance, balancing focus between large strategic accounts and broader regional customer base • Serve as the primary relationship owner for Key Strategic Accounts, building deep, multi-level customer engagement (engineering, operations, procurement, and executive leadership) • Manage and grow a diverse portfolio of regional customers, ensuring consistent pipeline development and revenue contribution • Expand market presence by developing new customers and strengthening relationships with emerging accounts • Lead contract negotiations, including commercial terms, pricing strategies, and amendments • Develop long-term account plans aligned to customer technology roadmaps and Onto Innovation’s strategic objectives • Drive design wins, tool of record positions, and multi-year growth opportunities within key accounts • Coordinate executive alignment and sponsorship for critical customer engagements • Proactively identify risks and opportunities within key accounts and mobilize internal teams to respond • Efficiently prioritize time and resources across multiple accounts to maximize territory productivity • Maintain accurate weekly sales forecasts (rolling six-month outlook) using internal tools (Excel / SharePoint) • Ensure all opportunities are properly documented, quoted, and incorporated into the revenue plan • Coordinate with internal teams (factory, service, applications, engineering) to ensure seamless execution of customer requirements • Conduct regular F2F customer meetings, including weekly calls across multiple time zones • Provide detailed sales call reports, action plans, and follow-through on all open items • Identify and remove roadblocks to ensure on-time shipments and project success • Monitor accounts receivable and support resolution of payment or collection issues • Maintain detailed knowledge of Onto Innovation products and competitive offerings, including positioning strategies.

• Drive Pro sales for assigned and Prospect portfolio of customers by conducting market research, cold calling, following through on lead generation, meeting with clients/customers on a regular basis in their place of business, jobsites and tradeshows • Schedule regular visits to worksites to determine if additional product is needed, take order, work with store to fulfill the order. • Negotiate pricing and contract terms in order to close sales during customer meetings. • Conduct district research of pro customer opportunities to find the highest opportunity customers to pursue. • Work with assigned accounts and pull together relevant information to create an effective strategy for their assigned accounts. • Work cross-functionally with District Managers and Store Managers to bring the services and products needed to increase pro sales for each of the SAMs customers. • Conduct 12-15 sales calls each week to review products, production schedules, planning schedules, delivery timing and new product introductions; ensuring these sales calls are scheduled 1-2 weeks in advance. • Apply a consultative selling strategy to understand the needs of the customer and apply a proactive selling approach when scheduling follow-ups with sales opportunities. • Build strong working relationships with District Managers, Store Managers, Regional Vice Presidents. • Use all relevant selling tools, selling programs and fulfillment channels to bring effective solutions for their pro customer. • Update District Manager weekly regarding sales and customer opportunities, wins and sales performance, including yearly planned sales.

• Maintain and grow customer accounts optimizing revenue opportunities • Act as a trusted business partner, build meaningful value-add relationships • Ensure tactical and flawless implementation of programs • Develop and cultivate new business opportunities with the client • Sell product mix (integrated solutions) as appropriate to ensure successful campaigns • Research, tailor and teach commercial insights to clients • Negotiate contracts; engaging internal resources as needed • Provide accurate and timely reports and forecasting as required by the Company

• Sustain sales for existing customers and manage multiple Semi End User and OEM accounts throughout the US • Maintain and manage sales plans to achieve sales goals within assigned accounts • Identify growth opportunities for INFICON’s product portfolio • Build and maintain strong customer relationships by addressing the specific needs of semiconductor OEMs and Semi End User accounts • Provide technical guidance and expertise on the application of INFICON products to meet customer requirements • Manage account activities, including preparing quotes, negotiating sales contracts, submitting forecasts, and creating key account plans and monthly reports • Provide valuable feedback to Business Units regarding product introduction strategies, market trends, competitive analysis, and application requirements • Support pricing adjustments, product recommendations, and updates to sales policies • Collaborate with the Segment Manager to input annual sales goals and refine strategic objectives for the sales territory • Identify opportunities to improve sales processes efficiency • Contribute to the development and execution of territory-specific sales and marketing plans