Knowledge transfer: why seniors become strategic in companies in 2026

In 2026, the transfer of skills is no longer a secondary HR subject. It becomes a question of operational continuity, performance and resilience. In many companies, retirements, longer careers, digital transformation and the scarcity of certain expertise create a new tension: organizations must evolve quickly without losing what keeps their jobs going on a daily basis. What is at stake is therefore not only the replacement of one employee by another, but the preservation of a capital of knowledge, reflexes, methods and judgment built up over the years.

In this context, the role of seniors changes status. It is no longer just a matter of managing the end of their career or arranging their departure. It is about recognizing that their experience can become a strategic lever, provided it is organized, transferred and updated. Companies that still treat this issue as a simple matter of one-off tutoring run the risk of losing much more than seniority: they lose business memory, operational reliability and part of their ability to train subsequent generations.

The aging of the working population is no longer an abstract projection. The OECD recalls that, in many countries, the working age population is starting to decline with the departure of the baby boom generations, and that older workers are becoming a resource to be better mobilized to support growth and living standards. In France, Dares indicates that in 2024, 60.4% of 55-64 year olds are employed, compared to 82.8% of 25-49 year olds. The employment rate of seniors is therefore increasing, but the challenge is no longer just to keep them in their jobs: it is also to make better use of their experience in a tighter and more unstable labor market.

In other words, the more companies seek to secure their skills, the more they have an interest in looking at seniors differently. Not as “exiting” employees, but as professionals capable of stabilizing teams, transmitting critical knowledge and reducing the invisible losses linked to unprepared departures.

The transmission of skills is not just about explaining a procedure or handing over files. In the reality of work, a significant part of competence is tacit. It is based on trade-offs, habits of vigilance, a detailed understanding of customers, suppliers, tools, incidents already encountered or errors not to be repeated. It is this dimension that companies rarely formalize early enough, even though it is often decisive in the quality of the work.

Seniors also pass on something other than technical know-how. They transmit a way of judging a situation, of prioritizing, of negotiating, of relating a rule to a context, or of identifying a risk before it becomes visible to everyone. In certain professions, this affects security, compliance, commercial relations or quality. In others, it mainly concerns the actual functioning of the organization. This contribution does not replace digital tools, but it makes them more useful, because it provides the context and discernment that standardized systems often lack.

The point that the Gemini text did not address enough is that of the concrete framework of 2026. The law of October 24, 2025 on the employment of experienced employees strengthened social dialogue on these subjects. The DREETS points out that it requires regular negotiation, in professional sectors and in companies with at least 300 employees, on recruitment, retention in employment, end-of-career arrangements and the transmission of knowledge and skills. This changes the nature of the subject: we are no longer only talking about optional good practices, but about a structuring theme of age and skills management.

The same reform also transformed the old professional interview into a career interview. This interview is now a mandatory meeting every 4 years and must cover skills, training needs, development wishes, but also, in certain situations, professional wear and tear, job adaptation, mobility or end-of-career arrangements. When following a mid-career medical examination, it must be organized within 2 months and include the measures proposed by the occupational physician. And in the first interview taking place in the two years preceding the employee's 60th birthday, the conditions for maintaining employment and the possibilities for adjustments such as part-time work or gradual retirement must be discussed.

A company does not automatically benefit from the experience of its seniors. If this experience is neither identified, nor recognized, nor shared, it often disappears without leaving a usable trace. This is why the transfer of skills must be thought of as a process, not as an end-of-career conversation.

The most effective systems generally begin with a mapping of critical skills: what knowledge relies on only a few people, which positions concentrate the most business memory, which expertise would be the most difficult to reconstitute after departure. Only then do the right formats come: tutoring, intergenerational pairs, documentation of complex cases, communities of practice, observation sequences, time dedicated to feedback. Reverse mentoring can be useful, but it should not become a slogan. It works when it is part of a balanced exchange between professional expertise and appropriation of new tools, not when it serves to caricature ages.

The first mistake is to wait until the last months before departure to talk about transmission. At this stage, it is often too late to circulate knowledge in good conditions. The second is to believe that the experience is transmitted by itself, through simple proximity. This is generally not the case. The third is to confine seniors to a symbolic role without giving them time, recognition or a clear mandate to transmit. The fourth, more subtle, consists of considering that only young people should be trained. The OECD, however, insists on the fact that the winning strategy for older workers is also based on employability, and therefore on access to skills and opportunities. Successful transmission therefore requires seniors who transmit, but also seniors who continue to learn themselves.

In other words, a serious policy does not only seek to “use” experience before it leaves. It creates an environment where experienced employees remain engaged, recognized and able to develop their own role, including roles as referents, internal trainers, tutors or knowledge brokers.

Transmission is often more effective when it takes place at a less brutal end to a career. Gradual retirement can, in certain cases, help organize this transition, since it allows you to work while receiving part of your pension and continuing to contribute. Retirement Insurance reminds that it is possible from the age of 60, under conditions, with at least 150 quarters and part-time activity. It is not a transmission device in itself, but it can offer a useful framework for keeping experts in the company for longer with a lighter workload and a more support-oriented role.

Here again, exaggeration must be avoided. Phased retirement is neither automatic nor universally used. But well prepared, it can be part of intelligent transmission tools, especially when the company seeks to preserve rare skills without prolonging the same level of work intensity.

In 2026, the transfer of skills becomes strategic because companies can no longer rely solely on recruitment, documentation or technology to compensate for the loss of experience. In a context of an aging workforce, rapid transformation of professions and tension over certain areas of expertise, seniors represent a lever for continuity, training and reliability. We still need to move away from a passive vision of their role.

The real issue is therefore not to celebrate the experience abstractly. It is about organizing what it can provide while it is still present: the transmission of critical knowledge, the development of skills among younger people, the adaptation of career paths and better preparation for the end of their careers. The companies that will be most successful in this area will be those that treat experienced employees not as a category to be managed separately, but as an active part of their skills strategy.