Join Us
Colas Group operates in 50 countries worldwide, employing around 64,000 people.
In 2025, our ambition is to welcome more than 6,000 new employees and support 1,500 interns and 1,000 apprentices in their training paths.


At Colas, we do all we can to make sure the Group continues to be a favorite employer in our sector, around the world.
Our ‘People First’ human resources policy, which is part of our CSR ambitions, gives us the tools we need to invest in the career development of all our employees. Our people are our most valuable assets when it comes to the success and growth of our company.
Christophe Mansuy
Colas Group Vice President, Human Resources and Security
Attract
With a target of 6,000 positions to fill each year, we aim to attract applicants by highlighting our strengths:
- an international group that contributes to the sustainable and local development of communities;
- a decentralized organization that promotes personal initiative and encourages people to take responsibility in their day-to-day work, early in their careers;
- a large company where everyone can feel at home, work safely, and develop over the long term.
Retain
We firmly believe that the best way to retain employees is to promote fairness and diversity, foster the inclusion of all, and reward based on merit. In other words, all our employees can thrive within the Group throughout their careers, irrespective of ethnic origin, gender, age, and personal opinion.
Develop
Every year, we offer our employees the opportunity to expand their skills through a wide range of training courses that boost career paths. Both at Colas and the Bouygues Group, our employees can further their career development by taking up geographic or functional mobility opportunities.
Managerial Excellence
At Colas, our managers are in the field and working closely with teams, fostering solid and open lines of communication. We listen to our employees and work together to define the principles to be shared by all. This is the key to achieving our objective: steering overall performance while allowing enough flexibility to take into account the significant diversity of our operations and local markets.
Skills Development at Colas
Skills Development at Colas
Our Values
Respect, commitment, pioneering, and transmission are the values that drive us and that we share with the five other business segments within the Bouygues Group, of which we are a part.
They reflect what has shaped us since the company was created nearly a century ago, and the way we operate. We encourage all our employees to put these values into practice day after day, as they carry out their work.
Respect
Respect, treat others how you would like to be treated
Respect is THE absolute foundation of everything. Without it, there is no trust, no team, no future. At Colas, we care about and consider everyone - our clients, teams, colleagues and stakeholders. We champion transparency and honesty, and we stick to our word. It is the key to a collective that moves forward together, with high standards and consideration.
Commitment
Commitment is about giving your heart and soul
When we commit, it is a collective pact and an investment in everyone's success. At Colas, you don't succeed alone. We invest in our customers, our teams, and our colleagues, and with our ethical approach and total transparency, we know we can count on our people and partners. This collective energy allows us to go further, to overcome any challenge, and deliver our exceptionally high standards. We commit 100% and we commit together.
Pioneering
Bold innovation, not blind ambition
At Colas, we push boundaries, imagine what does not yet exist, and dare what others do not.
It is about analysing, preparing, calculating risks and pre-empting challenges bedore taking on the adventure. We innovate with ambition, and we find solutions. Great pioneers are note those who just take a leap of faith and hope for the best, the form their vision and ambition based on intelligence, expertise and boldness.
Sharing
Knowledge and experience are meant to be passed on
At Colas, we don't believe in well-kept secrets. Each of us holds knowledge that could and should be shared. We see sharing and guidance as fundamental in helping us all grow. This also ensures that we do not rely solely on a few experts but on a strong collective. We pass on our knowledge so that we can achieve the best of ourselves and others.