Business Developper

About the role

Mixvoip is looking for an Account Manager based in Luxembourg, with a strong focus on developing and managing relationships within the public sector.

This role is about ownership, structure, and long-term relationship building. You will manage existing accounts, develop new opportunities, and ensure that public sector customers receive the level of reliability, clarity, and follow-up they expect from a regulated telecom and IT provider.

What you will do

You will be responsible for a defined portfolio of public sector accounts and prospects in Luxembourg.

Your responsibilities will include:

1. Managing and developing existing public sector clients
2. Identifying and pursuing new business opportunities within municipalities, administrations, and public institutions
3. Preparing and responding to public tenders (RFPs) in collaboration with internal teams
4. Coordinating with technical, operations, and support teams to ensure accurate proposals and smooth project delivery
5. Negotiating contracts and ensuring long-term account stability
6. Monitoring contract renewals and ensuring retention
7. Representing Mixvoip in meetings, site visits, and official procurement discussions

What do we need from you?

1. Experience in B2B sales or account management
2. Previous exposure to public sector procurement processes is a strong advantage
3. Ability to understand telecom and IT environments (cloud PBX, connectivity, mobile, cybersecurity)
4. Comfortable working with structured sales cycles and documentation
5. Strong written and verbal communication skills in French and English (Luxembourgish or German is a plus)
6. Autonomous, organized, and able to move opportunities forward without constant supervision
7. We are not looking for someone who needs constant stimulation. We are looking for someone who understands responsibility, structure, and execution.

What you will find here

1. Permanent contract (CDI)
2. Position based in Luxembourg
3. Direct exposure to strategic public sector accounts
4. Real ownership of your portfolio
5. Support from experienced technical and operations teams
6. A company that operates in a regulated environment with long-term vision

A new way to apply: join Mixvoip’s success story

Join Mixvoip and you won’t just be connecting businesses to high-speed internet, fiber, satellite, phone, or mobile networks, you’ll be connecting people, forging relationships, and making a real difference in our story.

So, if you’re prepared to embark on an engaging journey and play a pivotal role in Mixvoip’s saga, here’s an unconventional route to apply

We invite you to record a brief presentation video with your smartphone. Share why you’re drawn to this role or pose any questions or doubts you might have. It’s about keeping the conversation open and engaging! Please remember to attach your CV in PDF format too.

Instead of a conventional cover letter, we’d like you to employ an AI of your choice. This not only mirrors our technology-focused approach, but it also allows you to showcase your adaptability to new tools. It’s less about the letter, more about your interaction with AI that we’re keen on.

PS: Want to know who you’ll be journeying with? Meet us, Frederic Vanholder and Isaline Mortier

Frederic Vanholder

At 55, I lead Mixvoip's sales activities with a strong focus on sales management. But I'm not just a sales lead. I enjoy the work of selling and proposing, and I proudly say that I do sales and close deals on a daily basis. I am hands-on.

I've been with Mixvoip since 2012, after working in the telco sector at companies like Verizon, BT, and Infonet.

I value transparency, and momentum. Organization is key, but even when things are not yet clear, it's not a reason to slow down.

Outside of work, I’m passionate about sailing. It mirrors my mindset: read the environment, adapt to change, and stay on course.

And internally, my favorite sign-off says it all: “go go go”.

Isaline Mortier

At 48, I bridge marketing and sales to ensure Mixvoip’s message is clear and authentic. I value structure, clarity, and efficiency, and take pride in turning strategy into measurable results while bringing others along the way.

Outside work, I’m passionate about food, design, and travel. I love discovering exceptional places, sharing great meals with friends and family, and giving character to spaces through creativity and detail.

I’m not the sporty type, my idea of balance is a good dinner, not a marathon, but I’m driven, curious, and always looking for ways to make things move forward.