Career
Twenty-five years in industry, eleven of them heading employee relations for a financial group, before admission to the bar in July 2025.
Professional career
Since July 2025
Avocat à la cour
TWA Avocat.s
Ermont
Val-d'Oise Bar. Advisory and litigation work in employment and social security law, for companies, directors and individuals.
2017 – 2025
Group deputy director, employment law and employee relations
Crédit Immobilier de France
Paris
Advising executive management on the group's employment strategy ahead of transformation projects. Running employee relations with union and staff representatives, legal monitoring, and handling of sensitive individual matters and litigation alongside instructed law firms.
2014 – 2017
Head of employee relations
Crédit Immobilier de France
Paris
Preparing and running meetings with unions and employee representative bodies, negotiating collective agreements, and conducting information and consultation procedures ahead of project rollouts.
2011 – 2014
Employee & Labor Relations Manager
American Express
Rueil-Malmaison
Steering employment strategy across the group's French entities. Supporting joint ventures, disposals and employment protection plans. Prevention policy and chairing of health and safety committees.
2003 – 2011
Employment and HR consultant
SD Worx
Paris
Advising client company management across the full range of employment matters: contracts, disciplinary procedures, terminations, setting up representative bodies, compliance audits. Supporting foreign companies establishing in France, and international mobility management.
2000 – 2002
Employee relations and research officer
Renault
Boulogne-Billancourt
Coordinating workplace elections and advising local HR management on their obligations. Studies on hourly costs, skills and career paths in production units.
1995 – 1999
Customer service team leader
France Télécom
Paris
Leading a customer service team. First exposure to collective employment relations, in a company then opening to competition.
Education
Since 2022
Bar school
HEDAC — Haute École des Avocats Conseils, cour d'appel de Versailles — Versailles
Called to the bar and admitted to the Val-d'Oise Bar in July 2025.
2001
Specialised master's — human resources management and international mobility
École normale supérieure de Cachan — Cachan
Dissertation: “The taxation of employees on international assignment”.
1996
Bachelor's degree in education sciences
Université Paris XII Val-de-Marne — Créteil
1993
Master's degree in law, corporate careers option
Université Jean Moulin Lyon III — Lyon
Professional certifications
Awarded by named bodies, with their year. They can be verified with those bodies.
2026
ICCF — International Certificate in Corporate Finance
HEC Paris · First Finance — Paris
What the certification covers
Financial analysis, company valuation, financing structure, and reading the economic impact of a legal decision.
2012
IOSH Managing Safety
Groupe Préventique — accréditation Institution of Occupational Safety and Health — Bordeaux
What the certification covers
Workplace safety management: risk assessment, management duties, monitoring of prevention plans.
2011
Lean Six Sigma Black Belt — industrial engineering expert (products and services)
École centrale de Paris — Châtenay-Malabry
What the certification covers
Process analysis and optimisation, variability reduction, ranking risk by cost of correction.
2005
Specialised MBA — human resources management and international mobility
Cercle Magellan — Paris
What the certification covers
HR management in an international setting: expatriation, inbound assignment, applicable status and regimes.
The career in figures
These figures relate to roles held at Crédit Immobilier de France between 2014 and 2025, in employee relations management, before admission to the bar in July 2025. They do not describe the firm's activity since it opened.
- Years in industry before the bar
- 25Years in industry before the bar
- Mergers and acquisitions carried out
- 12+Mergers and acquisitions carried out
- Employment protection plans prepared and delivered
- 10Employment protection plans prepared and delivered
- Business and activity transfers (art. L. 1224-1)
- 8Business and activity transfers (art. L. 1224-1)
Organisations worked within
As an employee
Companies within which Herman Twagiramungu worked between 1995 and 2025, before admission to the bar.
- Crédit Immobilier de France
- American Express
- Renault
- France Télécom
As a consultant, at SD Worx
Organisations advised between 2003 and 2011 as part of an employed consulting role. These are not clients of the firm: no client is named anywhere on this site.
- Thalys
- Dassault
- Euronews
- Axa Art
- Lloyds