Assistant - Commercial Administration and Billing M/F

Location: Mont-sur-Lausanne

Contract type: Fixed-term contract - 100% then permanent contract - 60% - 80%

Start date: October 2026

About BMC:

Founded in 1985, BMC Société de Services Informatiques SA is a Swiss company specialising in IT solutions for businesses. We support our clients in optimising their business processes through reliable, efficient, and tailored solutions.

As the publisher of the Strategic software suite, BMC is recognised for its expertise in developing and integrating ERP management solutions. Our offering also extends to electronic document management (EDM), Business Intelligence (BI), as well as IT and Datacenter infrastructures.

For over 40 years, our commitment has been based on the quality of our products and services, close relationships with our clients, and building lasting relationships founded on trust. Our solutions currently 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 promote a collaborative work environment where expertise, knowledge sharing, and skills development enable everyone to actively contribute to our collective success.

Job Description

As part of a maternity leave replacement, we are looking for a Commercial Administration & Billing Assistant at 100% for a duration of 4 to 6 months, with the possibility to continue the collaboration at a workload between 60% and 80% depending on the company’s needs.

You will ensure the smooth running of commercial administration by guaranteeing the follow-up of offers, client contracts, and billing. You will ensure the quality of information, respect deadlines, and the proper conduct 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
• Monitor contractual changes
• Ensure compliance and quality of administrative documents

Billing

• Prepare billing for services, maintenance contracts, subscriptions, and recurring services
• Verify contractual elements necessary for reliable billing
• Ensure compliance with contractual conditions and deadlines
• Collaborate with internal teams to ensure efficient processing of files

Administrative Management

• Enter, update, and control data in our Strategic ERP
• Participate in the continuous improvement of administrative processes
• Welcome visitors, manage telephone reception, and provide administrative support to various departments

Profile sought

Education and experience

• Commercial employee certificate (CFC) or equivalent training
• Proven experience in commercial administration, contract management, or billing
• Experience managing commercial offers, client contracts, and complex billing processes, ideally in a B2B environment
• Experience using an ERP; knowledge of Strategic is an asset

Skills

You are an organised, rigorous, and quality-oriented person. You appreciate environments where priorities evolve and know how to manage several files simultaneously with method.

You:

• Are recognised for your organisational skills and rigour
• Know how to plan your work and meet deadlines
• Are autonomous, proactive, and able to take initiatives
• Demonstrate precision and an excellent eye for detail
• Enjoy teamwork and maintain quality professional relationships
• Possess an excellent sense of service and clear, professional communication

Knowledge

• Excellent command of French, both spoken and written
• Good command of Microsoft Office tools
• Good skills in using IT tools and ability to quickly learn new software

What we offer

A 100% contract as part of a maternity leave replacement, with the possibility to continue the collaboration at a workload between 60% and 80% depending on the company’s needs.

Joining BMC means becoming part of a human-sized company that places commitment, collaboration, and skills development at the heart of its culture. We encourage the growth of our employees by promoting continuous training, knowledge sharing, and acquiring new skills.

Job conditions

• Workplace: Le Mont-sur-Lausanne
• Swiss nationality or holder of a B or C work permit