Join us
Colas, present throughout the French territory, employs nearly 30,000 people.
In 2026, our ambition is to recruit more than 3,000 new employees and to support 1,500 interns and apprentices in their training journey.
Joining Colas means joining a company where we work seriously without ever forgetting the human element, where we move forward together, and where every project is a collective story.
What if the link between us was also you?
Professions at the heart of the regions
At Colas, working isn't just about building roads, structures, or developments. It’s about connecting regions, women, and men, and leaving a useful and lasting mark on everyone's daily lives.
From the field to engineering, from laboratories to support functions, Colas offers more than 600 professions serving mobility, safety, and the environment. Every year, more than 40,000 projects are completed across France: roads, cycle paths, bridges, urban developments, energy infrastructure...
Our employees—whether they are workers, technicians, engineers, or project managers—all share the same ambition: to act every day for the regions and their inhabitants.
What makes Colas strong are the women and men who shape our regions and our society. Every day, I see our teams building useful and sustainable infrastructure, but above all, creating life paths.
I deeply believe that people are at the heart of our success. Joining Colas means becoming part of a company where everyone can grow and contribute to a better future.
Jean-Paul Fritsch
Human Resources Director, Colas France
A common culture at the service of the collective
Colas shares the founding values of the Bouygues Group, which form the bedrock of our corporate culture and our daily actions.
Respect
To respect is to recognize the value of everyone
Respect is the foundation of everything. Without it, there is no trust, no team, and no future. At Colas, we are attentive and considerate toward everyone—clients, employees, colleagues, stakeholders… We demonstrate transparency and honesty, and we keep our word. Respect is the key to a collective that moves forward together with high standards and consideration.
Commitment
For us, commitment means being fully involved, with high standards and responsibility.
Commitment is more than an individual effort: it is a collective pact. At Colas, we don't succeed alone. We invest ourselves for our clients, our teams, and our colleagues, and in return, we know we can count on them. It is this collective energy that allows us to go further, to meet every challenge, and to build with high standards. We commit ourselves fully, together, and without compromise.
Pioneer
Innovating with boldness, without ever improvising.
At Colas, we are here to push boundaries, imagine what does not yet exist, and dare to do what others do not. This means analyzing, preparing, calculating our risks, and evaluating and anticipating difficulties before moving forward. We innovate with ambition, but without improvisation. Because true pioneers are not those who set off blindly, but those who forge new paths with mastery and audacity.
Transmission
For us, we share knowledge, experiences, and successes.
At Colas, we don’t believe in well-kept secrets. We are all keepers of a common heritage. Sharing means helping others grow, but it also means ensuring that the company doesn't rely solely on a few experts, but on a solid collective. Passing on knowledge means demanding the best of oneself to give the best to others.
While the construction and public works sectors remain heavily male-dominated, Colas has been working for over 10 years to increase gender diversity.
The action plan, which aims to attract more women and offer them fulfilling careers, is led by the HR department and supported by all management levels. Increasing the representation of women in governing bodies is a longer-term endeavor, and the results are not yet fully reflected in the statistics.
Colas and its subsidiaries remain mobilized to advance feminization in the construction of cities and communication routes, for the benefit of everyone.
For the year 2025, the Gender Equality Index results for Colas France were 73/100 points.
| Pay gap | Individual increase gap | Gap promotion | Maternity | Top 10 remunerations | Résultat Final |
| 38 | 10 | 10 | 15 | 0 | 73 |
Au titre de l'année 2025, pour la société Colas France, les résultats de l'index Rixain :
| Representation gaps among senior executives | Representation gaps among members of governing bodies | ||
| 6 % women | 94 % men | 17 % women | 83 % men |
Discover our opportunities across France
With 300 local branches, Colas France is recruiting all across the country.
Whether you are a student, a recent graduate, or an experienced professional, we offer:
- Permanent positions (CDI) in construction trades, engineering, and support functions,
- Apprenticeships and internships to learn a career for the future,
- Internal mobility to grow within an international group while remaining locally rooted.
