HR StrategyInterim CoverageHR Team SupportRestructuringAcross France

Your Human Resources Department, led seamlessly to support your company's day-to-day business.

Interim HR Director and founder of HERNANDEZ CONSEIL RH,
offering interim coverage for an absent HR Director, support for HR teams and leadership of restructuring projects, with nearly 20 years of expertise in labor relations and employment law.

A firm belief: labor relations are a powerful driver of a company's competitiveness.
Constructive social dialogue reduces expert fees and litigation, prevents roadblocks when projects are rolled out and frees up the strategic time a company needs to grow.

Labor relations can also deliver a competitive advantage, such as a collective agreement (on night work, for example) that competitors do not have.

Sonia Hernandez, Interim HR Director

Support that spans the entire HR function.

From a few weeks to several months, the scope and duration of each assignment are defined with you, to fit your needs as closely as possible.

Three types of assignment

01Change management

Transformations, major restructurings and labor relations

High-stakes projects with major employee, reputational and media implications, led with employment law expertise and with social dialogue as the common thread.

Assignment aligned with the project timelineLet's talk
02Interim coverage

Covering for an HR Director

Continuity of the HR function during the absence or departure of the HR Director (maternity leave, extended medical leave, transition between two HR Directors), ensured from the very first days.

Start in 48 hours to 2 weeksLet's talk
03Operational support

Supporting HR teams

Hands-on support in labor relations and employment law, side by side with the existing HR team.

From a few weeks to a few monthsLet's talk

Six areas of expertise

01Generalist HR Director

Leading the HR function

  • HR policies aligned with the company's strategy and investment cycle (growth, LBO, downsizing, joint venture, carve-out), rolled out on the ground
  • HR levers that drive sales performance and competitiveness
  • Compensation and payroll cost control
  • Strategic workforce planning (GEPP) and skills mapping: anticipating needs, career paths, redeployment and training plans
  • Employer brand, internal as well as external: company culture and management practices
  • Diversity, inclusion and talent retention
  • Day-to-day HR management: HR administration, payroll oversight, recruitment and onboarding
02Interim coverage

Covering for an HR Director and supporting HR teams

  • Defining an HR strategy that supports the company's business strategy
  • Quickly taking charge of the entire HR function, running it day to day and managing the HR team
  • Where applicable, continuity of the function while a successor is recruited, with no need to rush
  • Expert input on employment law, employee representation and negotiation
  • Ad hoc support for existing HR teams and handling of peak workloads
  • Structured handover, with files and decisions fully documented
03Restructuring

Restructuring, PSE and transformation

  • Defining the strategy for implementing the project: legal analysis, scenarios and a timeline for the works council and legal procedures
  • Preparation, negotiation and operational implementation
  • Early action to avoid, where possible, a major restructuring
  • Site closures, including a Seveso upper-tier industrial site
  • High-profile media and political situations
  • From single-site to group-wide scope, including coordinated multi-site plans
  • Communication with affected managers and employees
  • Setting up and monitoring internal communication in a tense labor climate
04Labor relations

Collective bargaining and social dialogue

  • Defining the HR and labor relations strategy in line with the company's objectives: assessment of the labor climate, labor relations agenda, negotiation priorities
  • Negotiating collective agreements: annual pay talks, gender equality, workforce planning, profit-sharing, mobility, social dialogue, psychosocial risks, etc.
  • Rebuilding trust with unions and employee representatives when the labor climate has deteriorated
  • Managing a changing union landscape
  • Chairing the works council (CSE) and the health and safety committee (CSSCT)
  • Day-to-day social dialogue and preparation of employee representative elections
05Transformation

Corporate transactions carve-outs, joint ventures

  • Corporate transactions: LBOs, joint ventures, carve-outs, divestitures and post-acquisition integration
  • Aligning the future organization with the group's strategy
  • Steering divestitures and integrations
  • Legally sound procedures and employee transfers, harmonized terms and conditions of employment
  • Redefining the scope of employee representative bodies
  • Sustained social dialogue through successive corporate transitions (LBO, joint venture, restructuring)
06Employment law

Executive advisory & legal expertise

  • Making individual and collective decisions legally sound
  • Sensitive cases: protected employees, underperformance (PIP)
  • Legal risk management for divestitures, acquisitions and site closures
  • Working with legal departments and representing the company before the French labor inspectorate
  • Workplace injuries and illnesses
  • Employment law training for managers

Whether the company is restructuring or transforming, the approach brings together a legal, human and strategic perspective in service of the company's competitiveness.

“Anticipate human and technological change, secure the legal and labor framework and lead the negotiations, so that transformation happens without damaging what gives the company its value.”

Nearly 20 years of experience supporting the strategic and HR development of companies, including 9 international groups, working alongside executives at critical stages in a company's life.
Specialist in complex restructurings: plans under intense media and political scrutiny, from single sites to entire groups.

Each project follows a four-step approach:

  • an early legal and labor relations assessment that, where possible, helps avoid a major restructuring;
  • scenarios and a timeline agreed upon with senior management;
  • negotiation with unions and employee representatives;
  • a secure implementation, with a clear and precise communication plan for managers and employees.

Working in direct contact with executive committees, unions and operational teams, with a hands-on style that combines strategic vision and execution on the ground.

Demanding situations, tangible results.

A selection of assignments carried out in interim or permanent roles for French and international groups: IT services, chemicals, biotechnology, manufacturing, transportation, insurance.

2025 — 2026 Tata Consultancy Services (TCS)
2025 Chemours
2025 Galapagos
2024 Gutenberg Networks
2023 — 2024 Microsoft France
2019 — 2022 Albelli — Photobox
2011 — 2016 DHL International Express
2008 — 2011 Maaf · Kiabi · Dalkia · EDF

Education and career path.

Education

Executive education · in progress

Executive MBA — Strategic Management & Economic Intelligence

École de Guerre Économique · Paris

A leading executive program in France, at the intersection of strategic management and economic intelligence, for senior executives facing complex and competitive environments.

For the HR Director role, this MBA provides decisive tools to analyze the balance of power in collective bargaining, anticipate the media and political risks of a restructuring, lead crisis communication and deploy influence strategies when steering workforce transformations.

Legal expertise
Master's in Employment Law
Toulouse Faculty of Law · 2006
International edge

Fluent English

Used daily in multicultural environments

Experience with British, American, Dutch, Indian and Belgian groups: working with headquarters abroad, with a keen awareness of cultural differences.

Career

Interim Director of Labor Relations
Tata Consultancy Services · 2025–2026
Interim HR Director
Chemours · 2025
Interim HR Director
Galapagos · 2025
Interim HR Director
Gutenberg Networks · 2024
Interim HR Director
Microsoft France · 2023–2024
HR Director
Albelli — Photobox Group · 2019–2022
Director of Labor Relations
Photobox Group · 2016–2019
Legal & Labor Relations Manager
DHL International Express · 2011–2016
Labor Relations Manager / Employment Law Advisor
Maaf Assurances, Kiabi Logistique, Dalkia & EDF · 2008–2011

Your questions about interim HR management.

What is an Interim HR Director?

An Interim HR Director is an experienced human resources director who joins a company on a fixed-term assignment.

Coming from outside the organization, they advise the company's leadership, negotiate collective agreements, attend works council (CSE) meetings and may manage the HR teams day to day.

The added value: expertise that is effective from day one, a neutral perspective free from internal politics and a commitment focused on specific objectives within a set timeframe.

What is the difference between an Interim HR Director, interim coverage and HR consulting?

Three complementary approaches:

  • Interim HR Director: takes operational charge of the HR function to drive a transformation (restructuring, layoff plan, carve-out, integration) or to ensure continuity in a vacant role. Advises, negotiates and executes.
  • Interim coverage (management relais): a form of interim management dedicated to temporarily replacing an absent HR Director (maternity leave, extended medical leave, change of role). The aim is continuity, not transformation.
  • HR consulting firm: provides an analysis and recommendations without taking part in their execution. The company then implements the recommendations.

An Interim HR Director can fill either of the first two roles, depending on the assignment.

When should you bring in an Interim HR Director?

The main situations:

  • Restructuring and layoff plans (PSE): defining the strategy, then preparing, negotiating and implementing the plan;
  • Corporate transactions: carve-outs, post-acquisition integration, joint ventures, LBOs, site closures;
  • Sensitive negotiations: complex annual pay talks (NAO), workforce planning agreements (GEPP), collective litigation, strained social dialogue;
  • Operational support: peak workloads, strategic HR projects (HRIS, overhaul of HR policy), crisis management;
  • Temporary replacement (interim coverage): maternity leave, extended medical leave, transition between two permanent HR Directors.
How long does an assignment typically last?

According to the H2 2025 survey by France Transition, the industry's trade association, an interim management assignment lasts 7.5 months on average. Most assignments last between 5 and 12 months.

Targeted emergency assignments may last from a few weeks to 3 months; conversely, a complex restructuring or long-term coverage may last up to 18 months. The duration is set in the initial contract and can be adjusted as the project evolves.

How much does an Interim HR Director assignment cost?

Fees are based on a daily rate (TJM), negotiated at the outset depending on the complexity of the matter, the duration and the scope.

Working directly, with no intermediary, keeps the daily rate competitive, without the commission of an interim management firm.

The total cost remains lower than that of a permanent hire over the same period.

How quickly can an assignment start?

Very quickly. After an initial scoping discussion and the signing of the service agreement, the assignment usually starts between 48 hours and 2 weeks later.

This responsiveness is one of the main advantages of interim management over a traditional hiring process (which takes 3 to 6 months). An immersion phase of 10 to 15 days (meetings with executive leadership, employee representative bodies, HR teams and external advisors) allows for a quick ramp-up.

How does an assignment work?

The assignment is structured in four stages:

  1. Scoping: an initial discussion to understand the context, objectives and constraints (scope, duration, deliverables, daily rate); signing of the service agreement.
  2. Immersion and assessment: the first days are devoted to meetings with executive leadership, employee representative bodies, HR teams and external advisors, and to taking stock of the situation.
  3. Operational leadership: execution of the plan agreed upon with senior management, negotiations, advice to senior management, decision-making, regular reporting to executive leadership.
  4. Closure and handover: transfer of knowledge to the successor (permanent HR Director or new hire), end-of-assignment review.

Facing a transformation project, a sensitive negotiation to lead or a need for extra support?

Let's discuss your situation, your timeline and the assignment you have in mind, with no obligation.

Or write to me directly.

Get in touch