Forvis Mazars provides audit, assurance, tax, advisory, consulting and outsourcing services to public and private organisations.
Visit forvismazars.com ↗
Within the Quantitative Finance team, you will develop machine learning applications and models related to credit risk, ALM and climate risk. You will also contribute to the design and review of risk models, as well as to the implementation or review of Basel III and IFRS 9. The 4 to 6 month end-of-studies internship is based mainly in Levallois-Perret. Proficiency in one or more programming languages among Python, R and C++ is expected.
Au sein de l’équipe Finance Quantitative de Forvis Mazars à Levallois-Perret, le stage porte sur la modélisation et la valorisation d’instruments financiers ainsi que sur le développement d’outils quantitatifs. Les missions incluent le développement en C++ et l’application du machine learning et du deep learning à la finance quantitative. Le stage de fin d’études dure de 4 à 6 mois et s’adresse aux élèves ingénieurs en dernière année spécialisés en mathématiques appliquées à la finance.
Within Forvis Mazars’ Accounting Expertise department, the role focuses on outsourced accounting services for clients. Tasks include recording routine transactions, bank reconciliations, and preparing periodic tax returns. The role is based in Courbevoie and requires a Bac+2 or Bac+3 accounting qualification and very good command of office software.
You will join Forvis Mazars’ Tech Risk & IT M&A team to advise companies on IT, risk and cybersecurity issues. You will contribute in particular to regulatory transformations and strategic IT consulting assignments, with possible involvement in IT due diligence. The position is based in Levallois-Perret and requires a master’s-level degree and fluent English.
At the Bayonne office, you handle reception and various administrative tasks for Forvis Mazars. Your duties include managing client and supplier data, tracking payments, and handling complaints. The position is part time, 25 hours per week, and requires vocational baccalaureate to BTS SAM/GPEM level training.
Based in the Rennes office, you will take part in accounting expertise assignments for small and medium-sized businesses, group subsidiaries, and associations. Your tasks will include bookkeeping and accounting reviews, annual accounts, and tax returns. The role is an apprenticeship and includes training and meal vouchers.
Within Forvis Mazars Avocats’ tax team in Lille, you will contribute to tax advisory and litigation assignments. You will conduct research, draft consultations and technical notes, and take part in tax audits and client meetings. This 4-to-6-month internship is intended for someone with a Master’s degree in tax law, a DJCE or equivalent qualification, and proficiency in English.
As part of Forvis Mazars’ Accounting team in Strasbourg, you will support international clients with accounting and tax assignments. You will prepare financial reports and annual accounts, and contribute to the presentation of accounts. This 4 to 6 month internship starts in January 2028 and requires proficiency in English and/or German.
Within Forvis Mazars’ accounting team in Bezannes, you will manage a portfolio of around 15 files, specializing in food franchising. Your duties will include accounting entries, tax returns, monthly reporting, account reviews and preparing tax packages. The role requires a BTS in Accounting and Management or a DCG, as well as initial experience in the field.
You will take part in accounting engagements for associations and small and medium-sized businesses at Forvis Mazars’ Le Havre office. Your duties include bookkeeping and accounting reviews, reporting, tax returns, and year-end closing work. The internship starts in January or February 2027 and lasts 3 to 6 months.
At the Caen office, the accounting internship involves assignments for associations and small and medium-sized businesses. Assignments include bookkeeping and accounting reviews, reporting, tax returns, and annual closing work. The internship is for students on a course specializing in accounting and includes training in tools and methods, as well as daily support.
Within Forvis Mazars’ Real Estate Consulting team in Levallois-Perret, you will support industry players on strategic projects. Assignments cover organizational diagnostics, process optimization, risk management, and support for real estate projects. This six-month final-year internship starts in January 2027 and includes travel to client sites.
You will join Forvis Mazars’ Accounting Expertise team in Valence, supporting clients with accounting, tax and advisory assignments. Your work will include preparing annual accounts and tax returns, as well as financial reporting. The position starts in November 2026.
You will join Forvis Mazars’ Social and Solidarity Economy and Public Sector Audit team in Levallois-Perret for a final-year internship. You will take part in statutory audits, reviews of financial information, and information systems and ESG audits. The role requires strong Excel skills and professional proficiency in French and English.
You will join Forvis Mazars’ Audit team in Levallois-Perret and contribute to financial audit assignments for organizations across a range of sectors. You will take part in statutory audits, reviews of financial reporting, and information systems audits. The 4-to-6-month gap-year internship starts in September 2027.
Vous gérez la paie et l’administration du personnel pour un portefeuille de clients multi-conventions, de la collecte des variables aux formalités d’embauche et de sortie. Vous assurez également les déclarations et le suivi des cotisations sociales, et contribuez aux évolutions des outils destinés aux clients. Le poste est basé à Besançon ou à Lons-le-Saunier et propose notamment des horaires flexibles, une mutuelle familiale et des tickets-resto.
At Forvis Mazars in Lons-le-Saunier, you will gradually take charge of a client portfolio in payroll and human resources management. You will manage payslips, social security contributions and personnel administration, and contribute to improvements to client tools. This 10 to 12-month apprenticeship is intended for someone training as a payroll manager; familiarity with Silae is an advantage.
Vous accompagnerez de grandes entreprises et ETI dans leurs processus comptables, fiscaux et de reporting, ainsi que dans des projets de transformation financière. Les missions couvrent notamment la comptabilité, la consolidation, la fiscalité et l’évolution des systèmes financiers, avec des outils comme SAP, Oracle et Dynamics 365. Le poste est basé à Levallois-Perret et est à pourvoir à partir de septembre ou décembre 2026.
- Level : Internship / apprenticeship
- Education : Five years of higher education
-
Microsoft Excel
-
Microsoft Word
-
Microsoft PowerPoint
You will join Forvis Mazars’ Forensic Services team to take part in internal investigations, compliance assignments, and the assessment of financial damages. You will contribute in particular to financial data analysis, report writing, and the design of compliance programs. This final-year internship is based in Levallois-Perret and covers a range of cases in France and internationally.
Au sein du pôle Sustainability Services de Forvis Mazars, le stage porte sur la vérification d’informations extra-financières et les audits ESG de fournisseurs. Les missions incluent aussi l’optimisation du reporting extra-financier et l’accompagnement à la mise en œuvre d’évolutions réglementaires européennes. Ce stage de fin d’études dure de quatre à six mois et débute en janvier 2027.
Vous préparerez un DCG ou un DSCG en alternance au sein de Forvis Mazars, dans une équipe encadrée par un expert-comptable ou un chef de mission. Vous serez formé(e) à la tenue et à la révision d’un portefeuille agricole, avec des missions de comptabilité, de déclarations fiscales, de trésorerie et de contact client. Le poste est proposé à Champagnole et mentionne des horaires flexibles ainsi qu’une prime d’intéressement.
Vous rejoindrez l’équipe Audit Non Sectorisé de Forvis Mazars à Levallois-Perret pour participer à des audits financiers auprès de clients de secteurs variés. Vos missions incluront la certification des comptes, la revue de l’information financière et des audits d’acquisitions ou de cessions. Le stage de 4 à 6 mois s’adresse à des étudiants en dernière année d’un diplôme d’ingénieur de niveau bac+5, avec une bonne maîtrise d’Excel et un français et un anglais professionnels.
Au sein de l’équipe AOS de Forvis Mazars à Marseille, vous accompagnerez des clients sur des missions d’expertise comptable, fiscales et de conseil. Vous réaliserez notamment des travaux de tenue et de révision, des déclarations fiscales, des clôtures annuelles et des reportings mensuels. Le poste en CDI est prévu pour septembre 2026 et comprend un parcours de formation ainsi qu’un accompagnement pour l’obtention du DEC.
Au sein de l’équipe Expertise Conseil de Forvis Mazars à Villeneuve-d’Ascq, vous interviendrez auprès de TPE et PME sur des missions comptables, fiscales et de gestion. Vous réaliserez notamment la tenue et la révision comptables, des déclarations fiscales, des clôtures annuelles, des reportings et des prévisionnels. Le poste prévoit un parcours de formation adapté et un accompagnement à la préparation du DSCG et du Diplôme d’Expertise-Comptable.