Internal Sales Support Associate

About the job

Introduction

We give homes a future. We do this with products and services that help reduce CO2 emissions from buildings. To achieve this, we manage data and processes that make properties more eco-friendly, safe, and comfortable. The foundation of our products and services is digital. We ensure that the transition to our sustainable technologies is easy for everyone. In this way, we enable each person to contribute to climate protection.

We have already deployed more than 48 million connected devices worldwide and develop solutions for energy-efficient and resilient buildings. We employ over 6,600 people in 21 countries, and our products and services are used in more than 14 million residential and commercial buildings worldwide, serving over 460,000 customers. In 2025, the expanded ista group generated a turnover of 1,287 million euros.

To strengthen our team in Switzerland, we are looking for a motivated and committed Internal Sales Support Associate.

What awaits you with us

Do you keep an overview even in a dynamic daily routine, think in a customer-oriented way, and want to actively shape the sales process behind the scenes?

At ista, you play a central role within internal sales support: you manage the entire quotation process in the areas of service provision, new constructions, and replacements, competently support our customers in their requests, and ensure that everything runs smoothly in the background. You work closely with the external service as well as other internal departments and thus directly contribute to the success of our sales regions.

• You manage the entire quotation process in the areas of service provision, new constructions, and replacements – from preparing and following up on quotations to providing specific technical information, up to updating data in the system.
• You prepare order confirmations, service contracts, and rental agreements, and keep the corresponding documents up to date for internal processing.
• You ensure internal follow-up with our customers – property managers, engineering offices, installers, and other partners – and are a reliable contact person for them.
• You handle replacement and warranty maintenance lists in a structured manner.
• You advise property managers and owners on our solutions and services.
• You carefully maintain customer data and documents in the CRM, FMS (Filemaker System), and SAP.
• You process various tenders in the field of metrology.
• You prepare quotations based on standard templates.
• You provide strategic and administrative support to the responsible external service colleague.
• You keep sales templates and documents up to date and current.

What you bring

• Concrete and measurable results in internal sales support or a comparable customer-oriented role – you work reliably, precisely, and with a strong sense of responsibility.
• A CAP/apprenticeship as a heating or sanitary installer, or commercial training (CFC), or further education at a business school or a higher diploma in economics (VSK), ideally with a technical affinity.
• Confident command of MS Office and ideally experience with SAP, FMS, and CRM.
• A strong sense of initiative, reliability, and autonomy.
• An efficient, precise, and responsible way of working.
• Customer- and entrepreneurially-oriented thinking and acting.
• Technical understanding and the ability to quickly familiarise yourself with new topics.
• Very good spoken and written German skills, with Swiss German being an advantage.

What we offer you

• Many opportunities and possibilities to actively make a difference and contribute.
• A varied, demanding, and autonomous role within an international company.
• Attractive employment conditions and long-term development prospects.
• Excellent offers for your personal and professional development.
• A high-performance and pleasant working environment within a team that aims for success together.
• Flexible work organisation tailored to your needs.

You don’t just want to follow processes, but actively shape the sales process?

Then we look forward to meeting you. Apply online now.