Join OHExpert

Who we are?

The Firm

OHExpert is a consulting and engineering firm specializing in the One Health approach. We support public actors (local authorities, health agencies, etc.), research organizations, NGOs and international institutions in the design, implementation and evaluation of strategies, public policies and projects at the interface between human health, animal health and ecosystem health.

We operate across the entire project lifecycle: territorial diagnosis, systemic analysis, stakeholder mapping, development of strategic frameworks, construction of roadmaps and action plans, implementation support, multi-stakeholder coordination, monitoring-evaluation and continuous improvement.

The Team

OHExpert is first and foremost a human adventure driven by two partners with complementary backgrounds and deeply rooted in the practical implementation of the One Health approach. We are:

• Élie-Ishnel ISHARA: Veterinary epidemiologist and public health specialist. He has supported research, surveillance and health risk management projects in various international contexts, including North-South collaborations. His experience covers emerging disease management, development of prevention and surveillance strategies, as well as multi-stakeholder project coordination.
• Colombe HENRION: Environmental geographer and biodiversity specialist. She has supported multi-stakeholder projects in the Indian Ocean, within a research partnership facility, on network facilitation, project coordination and operational translation of One Health challenges.

Together, we created OHExpert with the conviction that health, environmental and societal challenges can only be effectively addressed by crossing disciplines, field experiences, intervention scales and cultures.

Around this core, we mobilize an international network of experts from various disciplines: human health, animal health, ecology, social sciences, law, governance, data analysis, and public policy evaluation.

In addition to this expert network, we collaborate with various partners (consulting firms, One Health associations, universities, etc.). These collaborations allow us, when relevant, to mobilize complementary skills, experiences or resources to best meet the specific needs of our clients.

Why join the OHExpert network?

Joining OHExpert means becoming part of a community of committed experts united by a shared ambition: to contribute to high-impact projects for territories, populations and ecosystems, through a One Health approach that is both rigorous, interdisciplinary and operational.

• Maintain your independence while benefiting from the strength of a collective.
• Collaborate with experts from various disciplines and contribute to ambitious projects.
• Be mobilized on missions with Regional Health Agencies, local authorities, research organizations, NGOs, international donors, etc.
• OHExpert handles prospecting, proposal development, administrative and budgetary framing, as well as contractual project management.
• Access new professional opportunities, develop your network and enhance your expertise.
• Network integration is free and carries no exclusivity obligation.

Mission Prospects

As part of its development, OHExpert regularly responds to calls for tenders and solicitations. Several proposals are currently being processed, illustrating the type of projects on which network consultants could be called upon to intervene:

• Support for the recovery and reorganization of healthcare services in a post-natural disaster context (estimated mission duration: 1 month).
• Creation of a regional institute for global health (One Health) (estimated mission duration: 9 months).
• Design and deployment of an integrated surveillance platform using a One Health approach (estimated mission duration: 12 months).
• Development of a training program dedicated to combating antimicrobial resistance (estimated mission duration: 10 working days).
• Analysis of the impacts of climate change on arboviruses, integrating social inequalities and gender issues.

This list is indicative and non-exhaustive. Other missions may emerge. Depending on the projects, interventions can be carried out remotely, in mainland France, overseas or internationally.

Profiles Sought

The profiles below do not correspond to closed positions. They serve to structure the network around major areas of expertise. A consultant may identify with several profiles.

Applications presenting complementary expertise may also be considered, particularly in:

• Data analysis and valorization (data science, modeling, information systems).
• Governance and public policy (cross-sectoral coordination, institutional frameworks).
• Sustainable food systems (production, nutrition, food security).

What we expect from our experts

Beyond their technical expertise, we seek consultants capable of:

• Quickly understand complex institutional environments.
• Transform scientific knowledge into operational recommendations.
• Interact with public decision-makers, scientific teams and field actors.
• Work in multidisciplinary teams.
• Lead or support complex projects.
• Coordinate partners, consortia, networks, steering committees, scientific committees or working groups.
• Contribute to the scientific and methodological quality of missions.
• Produce structured, clear and directly actionable deliverables.

We seek expert-consultants, not just specialists in their discipline.

Cross-cutting Skills Sought

Collaboration Terms

Shortlisted candidates will be invited for an interview. Additional checks may be carried out prior to any contractual agreement.

Integration into the OHExpert network is based on flexibility and mutual freedom. It entails no subordinate relationship and constitutes neither an employment contract nor a promise of hiring.

Consultants retain total independence and remain free to accept or refuse proposed missions.

Contractual Framework and Remuneration

Collaboration terms are defined on a case-by-case basis. Depending on needs, experts may be mobilized through various forms:

• Service provision contract as an independent consultant (preferred modality).
• Payroll portage.
• Collaboration via a partner consulting firm or structure.
• Where applicable, any other contractual framework adapted to the specific nature of the mission.

Remuneration may take the form of:

• A daily rate.
• A lump-sum remuneration linked to deliverables or a work package.

Collaboration conditions, scope of intervention, expected deliverables, timeline and invoicing terms are systematically subject to a specific contract or agreement before the mission starts.

Our way of working and our values

• Adopt professional, respectful and constructive communication.
• Respect commitments made and proactively inform of any difficulties.
• Contribute to collaborations in a spirit of cooperation and continuous improvement.
• Respect principles of confidentiality, scientific integrity, professional ethics and non-discrimination.
• Declare any conflict of interest likely to affect participation in a mission.

We favor a facilitator and co-construction posture, aimed at strengthening the capacities of partner organizations and producing useful, shared and adapted solutions to territorial realities.