Quantity Surveyor – Farciennes

BESIX; Farciennes; On-site; EUR 55,000 - 90,000; Full time

Benefits offered by this job

Competitive remuneration

Flexible mobility options

Medical care insurance

Work-life balance program

Job summary

BESIX Group in Belgium is seeking a Quantity Surveyor to manage the commercial aspects of change orders throughout the project lifecycle. You will identify, price, substantiate and settle changes with Clients and Subcontractors, safeguarding the project's contractual and financial interests.

You will work closely with project management, planning, engineering and legal support to capture time and cost impacts, prepare substantiated change packages, and maintain a robust Change Order Register.

Qualifications

• Bachelor’s degree in QS/CM/Engineering or related field.
• Strong analytical and numerical skills.
• Solid knowledge of construction contracts and claims.
• Excellent communication, negotiation, and stakeholder management.
• Proficiency with cost management, quantity take-off, and scheduling tools.

Responsibilities

• Identify, price, and substantiate change orders with clients and subcontractors.
• Review subcontractor variation requests and verify entitlement and costs.
• Interpret contract conditions and maintain Change Order Register.
• Negotiate change orders and advise management on risks and recovery strategies.

Skills

Analytical skills

Numerical skills

Contract knowledge

Communication & negotiation

Cost management tools

Education

Bachelor's degree in Quantity Surveying, Construction Management, Engineering, Economics, or a related discipline

Tools

Cost management software

Quantity take-off software

Document control tools

Scheduling tools

Data analysis tools

Job description

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:https://www.besix.com

Job Description

The Quantity Surveyor (QS) is responsible for the commercial management of change orders throughout the project lifecycle. This includes identifying, evaluating, pricing, substantiating, negotiating, and settling changes with both the Client and Subcontractors, while protecting the project's contractual and financial interests.

Key Responsibilities

Change Order Management

• Identify and assess potential change events arising from design modifications, Client instructions, technical queries, delays, disruptions, site conditions, and other project developments.
• Prepare detailed cost estimates for change orders, including labour, materials, equipment, subcontractor costs, preliminaries, overheads, risks, and contractual mark‑ups.
• Coordinate with the planning team to evaluate time impacts, entitlement to extensions of time, and programme implications.
• Prepare and submit fully substantiated change order packages to the Client within contractual deadlines, including notices, cost breakdowns, time analyses, and contractual justifications.

Subcontractor Administration

• Review and assess subcontractor variation requests and claims.
• Verify contractual entitlement, quantities, rates, and supporting documentation.
• Challenge unsupported claims and formulate recommendations for approval, rejection, or negotiation.

Contract & Commercial Management

• Interpret contract conditions regarding entitlement, valuation methods, notice requirements, compensation mechanisms, and procedural obligations.
• Maintain an accurate and structured Change Order Register, tracking status, submissions, negotiations, approvals, values, and schedule impacts.
• Analyse project records, correspondence, meeting minutes, site reports, drawings, RFIs, NCRs, and other documentation to support or defend change positions.
• Prepare commercial reports, change summaries, forecasts, risk assessments, and management briefings.

Negotiation & Stakeholder Management

• Negotiate change orders and commercial settlements with Clients, Subcontractors, and suppliers.
• Participate in commercial, contractual, and project meetings.
• Advise project management on contractual risks, opportunities, commercial exposure, and recovery strategies.
• Work closely with project management, planning, engineering, legal support, site teams, Clients, and Subcontractors to gather and validate information required for successful change management.

Qualifications

• Bachelor's degree in Quantity Surveying, Construction Management, Engineering, Economics, or a related discipline.
• Strong analytical and numerical skills with the ability to assess cost, entitlement, time impact, and contractual risk.
• Sound understanding of construction contracts, variation management, claims, delay analysis, and subcontract administration.
• Excellent communication, negotiation, drafting, and stakeholder management skills.
• Proficiency with cost management, quantity take‑off, document control, scheduling, reporting, and data analysis tools.

Additional Information

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.