At ROCKWOOL Core Solutions, we partner with industrial manufacturers to deliver customised solutions – and help original equipment manufacturing succeed. Location: You are home office based in Spain or Portugal coveing the markets of Spain, Portugal and South-America.Within ROCKWOOL Core Colutions you will part of a Key Account Manager's team reporting to the Business Unit Director. Further, you will collaborate with local specification colleagues, product management, supply chain and quality, marketing and factory teams.Build, nurture, and manage long-term relationships with sandwich panel manufacturers, acting as the primary commercial contact.Deliver on ambitious sales targets and drive profitable growth for ROCKWOOL Core Solutions' stone wool products in sandwich panel applications.Conduct detailed account planning, regularly reporting on sales pipeline, forecasting, and market trends to inform strategy.Responsible for initiating and driving the product innovation process when client requirements demand new or modified solutions, defining scope and requirements and coordinating relevant departments (R&D, Product Management, Operations, Marketing) to ensure timely and commercially viable delivery.Negotiate commercial agreements, pricing, and supply terms, balancing profitability with customer satisfaction.Collaborate closely with local ROCKWOOL specification teams to ensure effective promotion and specification of stone wool solutions within targeted projects.Oversee and support specification activities conducted by local teams interacting with architects, system designers, and other technical influencers.Proactively secure active advocacy for ROCKWOOL Core Solutions in all relevant project stages, participating in stakeholder meetings to reinforce technical expertise and strengthen client relationships.Provide technical presentations, training sessions, and product demonstrations tailored to customer needs.Collaborate with cross-functional teams—including Marketing, Technical Services, and Customer Service —to ensure seamless service delivery and rapid problem resolution.Represent ROCKWOOL Core Solutions professionally at industry events, trade shows, and external forums relevant to the modular construction sector.Master's degree is advantageous.Minimum 5 years of progressive B2B sales experience in the building materials industry, preferably with direct exposure to sandwich panels, modular/volumetric building systems, or offsite construction technologies.Demonstrated track record of exceeding sales targets, managing high-value accounts, and negotiating complex sales agreements.Team Player with commercial acumen, customer-centric approach, and solution-driven mindset.Proficiency in Microsoft Office, Dynamics (CRM) and PowerBi.Language skills in Spanish and English, both spoken and written.What we offer you:Competitive base salary, plus performance-based bonusComprehensive benefits (company car, laptop and mobile phone)Professional development opportunities through industry trainings and coursesModern, flexible working arrangements within a collaborative and supportive team cultureStrong brand, industry reputation, and commitment to sustainabilityWe believe in building strong relationships, fostering professional development, and giving everyone the opportunity to make a difference.We are a purpose-driven, sustainable, and people-focused company, built on three strong pillars:Sustainability & Responsibility – every role contributes to creating a better tomorrow.