Prequalification Officer

BESIX Group  is a leading multidisciplinary Belgian Group, active in construction, real estate development, and concessions. Founded in 1909, BESIX has grown impressively and now operates across Northern and Eastern Europe, North and Central Africa, the Middle East (via BESIX Construct), as well as in Australia. 

The Group distinguishes itself through its internal Engineering Department, offering deep expertise in geotechnical engineering, concrete technology, planning, BIM, System Engineering, and other advanced tools. 

BESIX achieved a turnover of EUR 4.1 billion in 2025 and employs approximately 10,000 people across 26+ countries, representing over 80 nationalities. 

BESIX is committed through sustainable and responsible practices to leave a positive legacy. We integrate Environmental, Social, and Governance (ESG) principles into our operations. From reducing carbon emissions and promoting circular construction to fostering inclusive workplaces and ethical governance. 

Our sustainability charter and roadmap guide us in creating long-term value for communities, clients, and future generations. 

Learn more at: 

Are you organized, detail-oriented and eager to learn? Join the BESIX Estimating Department in Brussels as a Prequalification Officer / Administrative Assistant.

In this role, you will support the preparation and management of prequalification dossiers that help BESIX win exciting construction projects in Belgium and abroad. Working closely with experienced colleagues, you will develop your administrative, coordination and document management skills while gaining valuable insight into the tendering process.

You will initially focus on document management, project references, SharePoint administration, translations, signatures and administrative support for the Prequalification team.

Your role:

• Keep our prequalification database, project reference library and document management systems accurate, reliable and ready to use.
• Support the continuous improvement of our digital document management environment, including SharePoint, document databases, templates and AI-assisted knowledge management.
• Prepare and update key documents such as project sheets, certificates, attestations, CVs and supporting documentation.
• Support the preparation, review, assembly and submission of high-quality prequalification dossiers.
• Coordinate translations and ensure multilingual document libraries remain complete and up to date.
• Coordinate approvals, signatures and administrative formalities to keep submissions on track.
• Review documents carefully for accuracy, consistency, completeness and compliance with client requirements.
• Reports to the Prequalification Manager
• Works closely with Business Development, Estimating, Legal, Communication, Finance, HR and project teams and support departments.
• Bring energy, reliability and fresh ideas to a collaborative team culture that values continuous improvement.

• You have a bachelor’s degree in Office Management, Business Administration, Law or a similar field.
• You have 0-3 years experience in administration, document management, proposal support, tender support or a similar environment.
• Experience in document management systems, administrative support, legal administration or records management, proposal support or tender support is a plus but not a must.
• You have an interest in construction, engineering, infrastructure or large-scale project environments.
• You feel confident using Microsoft Office applications, including Word, Excel, Outlook, Teams and SharePoint.
• You communicate fluently in Dutch, French and English , both written and spoken.
• You enjoy bringing order to information and have a sharp eye for layout, accuracy and detail.
• You are organized, reliable and able to juggle several tasks and deadlines without losing focus.
• You are eager to contribute to the development and maintenance of our digital knowledge base and document management systems.
• You are interested in improving digital document management practices, including SharePoint, document databases, templates and AI-assisted knowledge management.
• You are curious, proactive and excited to learn in a team that will support your development.
• You enjoy teamwork and know how to coordinate smoothly with different internal stakeholders.

A career at BESIX is a lot more than just a job, it's about being part of our changing and innovative world. Your skills, ambition and passion will contribute to the development of our different businesses and allow us to succeed in the challenges of the coming years.

Working for the BESIX group allows you to be a part of a dynamic, creative and entrepreneurial company. It gives you a safe and collaborative working environment with ambitious and innovative goals for the world of tomorrow, but also for your career and personal development.

We are looking for different kinds of personalities, mindsets, backgrounds and genders to build the iconic and sustainable projects of tomorrow.

In line with its behavior of “Be Inclusive”, BESIX intends to accommodate for any reasonable accommodation (non-disproportionate burden), tangible or intangible, that would neutralize the limiting influence of an inappropriate environment on the participation of a person with a disability. Talk to your recruiter when applying.

Are you ready to make an impact and leave a positive legacy for years to come? If you are passionate about our purpose: “We take on today’s boldest challenges to build a lasting legacy” , come and join our caring BESIX family. Together we will co-create our future.

Working at BESIX brings a lot of great benefits including:

• An attractive remuneration package including a salary in line with the market and a range of employee benefits such as flexible mobility advantages, extra-legal pension, medical care insurance, work-life balance program (such as teleworking, flexible work schedule, mobile working), Health Management (sport, health check-up program, …);
• Career development programs that serve not only to ensure that you are constantly learning and improving but also that give you the possibility to expand your career horizon;
• A dynamic, creative and safe working environment with innovative colleagues supporting your endeavors (ideas, projects, goals, ambitions);
• Possibility to work on complex projects within both a local and international environment;
• The choice to remain locally anchored for the coming years or to seek an exciting international career opportunity within the group.