Applications closed Closed on Monday 4 May 2026, 23:59 BST. We're now assessing the 2026 pilot cohort — selection day 13 May.
Peer mentoring is a structured form of mutual support between people at a similar career stage or with comparable professional experience. It is distinct from two adjacent practices it is often confused with:
The format PeerLadder uses, is structured peer consultation: small fixed groups meeting regularly, with rotating roles, a defined process for raising and working through real cases, and a strict expectation of confidentiality.1 It is a learning method, not therapy and not a status game.
Two literatures converge on the answer.
Mentoring functions. Kram showed that traditional mentoring has both career functions (sponsorship, exposure, coaching) and psychosocial functions (acceptance, role-modelling, friendship).2 Peers are weaker on career sponsorship – they have less institutional power to deploy – but stronger on psychosocial functions, because shared experience makes reflection more authentic. For underrepresented dRTPs who often lack visible role models in senior positions, peer relationships offer the kind of psychosocial support that hierarchical mentoring frequently cannot.
Social learning. Bandura’s social-cognitive theory shows that humans learn by observing and modelling each other.3 In peer consultation, every member learns even when it is not their case – by watching how the group works through a problem, by hearing how others reframe a challenge, by noticing what advice they themselves are tempted to give. This is why a session focused on one person’s question still benefits everyone in the room.
Tietze's principle is that "everyone can and should be advised, and everyone can and should advise." Over a series of sessions, every member is both case-giver and consultant. The rotation does three things at once: it normalises asking for help (because everyone does it), it builds advisory skill in everyone (a leadership competency in its own right), and it produces a richer set of perspectives on each case than a single mentor ever could.1
Reciprocity is also a buffer against the power asymmetry of hierarchical mentoring. Nobody owes anybody patronage, and nobody is performing for someone who controls their next career step.
Hiring people from underrepresented groups does not, on its own, change outcomes. If they do not feel safe to speak, disagree, point out a problem, or admit uncertainty, you have a diverse room and a homogeneous conversation – and the research shows that produces homogeneous results.
This is what Amy Edmondson at Harvard Business School calls psychological safety: the shared belief that the team is safe for interpersonal risk-taking. It is the variable that makes diversity work.4
The CIPD's 2024 evidence review confirms that psychologically safe teams display more learning behaviour: they speak up about errors, ask for help, and admit uncertainty rather than hiding it. Counter-intuitively, less safe teams may look better on the surface but actually make more mistakes – mistakes that go unreported, and therefore unfixed.5
This is why Open Life Science (OLS) runs the two opening workshops as PeerLadder's first cohort activity: shared norms for trust, openness and respectful communication are established before peer-mentoring work begins. The structured peer-consultation format then preserves those norms over time, with confidentiality, equal footing and a fixed group meeting regularly.
Google's Project AristotleA two-year study of 180 Google teams identified five dynamics that distinguished high-performing teams. Psychological safety emerged as the most important – the foundation that allows the other four (dependability, structure & clarity, meaning, impact) to function.6
PeerLadder cohorts mix dRTPs from across the digital research stack – research software engineers, data stewards, bioinformaticians, HPC specialists, community managers – on purpose. We have adapted proven methods for cross-faculty groups, which shows why this matters: in cross-disciplinary peer consultation, a problem that feels stuck inside one domain often has a ready answer in another, and participants gain new methods and reframes from contexts they would never normally encounter.7
For leadership specifically, the underlying challenges – managing without formal authority, building influence, navigating institutional structures – generalise across domains. What changes is the specific vocabulary and the working culture. A mixed cohort lets that vocabulary travel.
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