Assistant - Commercial Administration and Invoicing M/F

Assistant - Commercial Administration and Invoicing M/F Location: Mont-sur-Lausanne Contract type: CDD - 100% then CDI - 60% - 80% Start date: October 2026 About BMC: Founded in 1985, BMC Société de Services Informatiques SA is a Swiss company specializing in IT solutions for businesses. We support our clients in optimizing their business processes through reliable, high-performance solutions adapted to their needs. Publisher of the Strategic software suite, BMC is recognized for its expertise in the development and integration of ERP management solutions. Our offer also extends to the fields of electronic document management (EDM), Business Intelligence (BI), as well as IT infrastructures and Datacenters. For more than 40 years, our commitment has been based on the quality of our products and services, proximity to our clients, and the construction of lasting relationships based on trust. Our solutions today support more than 14'000 users within industrial, watchmaking, distribution, service, technical installation, and transport companies. At BMC, we place our employees at the heart of our development. We foster a collaborative working environment, where expertise, knowledge sharing, and skill development allow everyone to contribute actively to our collective success. Assistant - Commercial Administration and Invoicing M/F Job Description As part of a maternity leave replacement, we are looking for a 100% Commercial Administration and Invoicing Assistant for a duration of 4 to 6 months, with the possibility of continuing the collaboration at an activity rate between 60% and 80% depending on the company's needs. You ensure the smooth functioning of commercial administration by guaranteeing the follow-up of offers, client contracts, and invoicing. You ensure the quality of information, compliance with deadlines, and the smooth running of administrative processes in collaboration with the commercial, technical, and administrative teams. Responsibilities Commercial administration Prepare commercial offers and ensure their administrative follow-up Prepare, create, and update client contracts Ensure the follow-up of contractual modifications Guarantee the compliance and quality of administrative documents Invoicing Prepare invoicing for services, maintenance contracts, subscriptions, and recurring services Verify the contractual elements necessary for reliable invoicing Ensure compliance with contractual conditions and deadlines Collaborate with internal teams to ensure efficient processing of files Administrative Management Ensure the entry, update, and control of data in our Strategic ERP Participate in the continuous improvement of administrative processes Ensure visitor reception, telephone assistance, and administrative support to various services Profile sought Training and experience CFC in commercial employee or training deemed equivalent Proven experience in a commercial administration, contract management, or invoicing function Experience in managing commercial offers, client contracts, and complex invoicing processes, ideally in a B2B environment Experience using an ERP; knowledge of Strategic is an asset Skills You are an organized, rigorous, and quality-oriented person. You appreciate environments where priorities evolve and know how to manage several files in parallel with method. You: Are recognized for your sense of organization and your rigor Know how to plan your work and respect deadlines Are autonomous, proactive, and capable of taking initiative Demonstrate precision and an excellent sense of detail Appreciate teamwork and maintain high-quality professional relationships Possess an excellent sense of service and clear, professional communication Knowledge Excellent command of French, both oral and written Good command of Microsoft Office tools Good skills in using IT tools and the ability to quickly learn new software What we offer A 100% contract as part of a maternity leave replacement, with the possibility of continuing the collaboration at an activity rate between 60% and 80% depending on the company's needs. Joining BMC means joining a human-sized company that places commitment, collaboration, and skill development at the heart of its culture. We encourage the evolution of our employees by promoting continuous training, knowledge sharing, and the acquisition of new skills. Job conditions Workplace: Le Mont-sur-Lausanne Swiss nationality or holder of a B or C work permit We look forward to receiving your application and welcoming you to our team! jpidc65f518jm jit0834jm jiy26jm