Our People

Axel De Saint Quentin

Axel is Chief Financial Officer of Veolia Nuclear Solutions. He has thirty years of experience in finance and environmental services, including water, waste management and energy services. 

Axel began his career as a Senior Auditor at PricewaterhouseCoopers in Paris and joined the Veolia Environnement group in October 1993 in the Energy Services activity. Since the end of 1997, he has held various positions as Chief Financial Officer of Waste Management activities in different geographies (North America, Northern Europe) or at the corporate level in the Water activities.

Christine Lucas Lamouroux

Christine Lucas is an expert in legacy waste management, with a PhD in analytical chemistry from Pierre and Marie Curie University in Paris, France and an extensive academic background in nuclear fuel cycle chemistry. She worked for the French Atomic Energy Commission for 15 years starting as a research engineer. She managed two R&D labs (analytical, isotopy, characterization and fuel cycle activities), and became the CEA’s R&D waste management and long-term disposal project manager. In 2014, she moved to AREVA (now Orano) as Technical Director and Strategic Affairs at the Waste Management divisions. Prior to joining Veolia, she was responsible for a business unit dealing with defence, demolition and fuel cycle in France's first independent nuclear engineering company. 

Christine is also a graduate of ESSEC Business School, France, where she earned a master’s degree in change management. She joined Veolia in December 2022 spending nine months as the Veolia Nuclear Solutions (VNS) Chief Technical & Performance Officer before becoming the VNS Chief Executive Officer.

Corinne Jamot

A 25+ years experienced legal professional holding a French Master's Degree in international business law, Corinne Jamot serves as General Counsel and Chief Compliance Officer for VNS. She joined Veolia in 2004 as legal counsel for the water treatment plants business before transitioning to her current role in 2019. 

Corinne contributes to the commercial growth of VNS and supports its development efforts by reviewing, or drafting and negotiating VNS’s contracts with third parties, while ensuring adherence of VNS to Veolia’s common rules and processes, as well as safeguarding and protecting VNS’s assets and personnel within the boundaries of the law.

Cyrille Veronneau is a chemical engineer from ESPCI Paris, with a DEA in Analytical Chemistry and a specialisation in process engineering and hazardous waste treatment. With over 25 years of experience, he has led multiple European and French R&D initiatives, including the LAFEROX and PHARE projects. Cyrille founded the radionuclide analysis laboratory at VNS and currently oversees innovation and research strategy, focusing on advanced waste treatment technologies.

François Parot

François Parot, a graduate of ENSIC, INPL and ESSEC, began his career in the chemical industry with HOECHST and CLARIANT, working in industrialization and technological development roles in France, the U.S., and Germany. In 2001, he joined VEOLIA in hazardous waste management within SARP Industries' HQ. From 2004 to 2008, he was Managing Director of EDIB and SARPI La Talaudière. After leading VEOLIA's hazardous waste activities in Switzerland, he returned to France in 2012 to establish ASTERALIS, becoming its CEO in 2016. From January 2023 until June 2025, he served as CEO of VNS Europe and VNS France.

He now serves as Director of Business Development and Strategy for VNS.

Helene Deniau

With a PHD in Chemistry from Paris VI University, Hélène began her career at Orano as an engineer, especially involved in the design, construction and start-up of the R4Pu facility at La Hague. Then she occupied several positions in the nuclear transport operations and the management of complex Dismantling Projects. 

After leading the Studsvik French Office, she joined Veolia to manage operations in a CEA facility. Based on her background mainly focus on the back-end activities of the electronuclear industry, she is currently the Performance & Methods Director at VNS helping the Entities in conducting their business development and project Execution.

Jean-François Nogrette 

Jean-François Nogrette holds a master’s degree in agricultural engineering and a doctorate in molecular biology. He joined Veolia in 1995 and was appointed CEO of SARP Industries, a Veolia subsidiary specialising in the global management of hazardous waste, in 2010. In 2015, he was appointed CEO, Veolia Water Technologies, and became a member of Veolia’s executive committee in 2018. 

His current post as CEO of Veolia’s France and Special Waste Europe includes overseeing Veolia Nuclear Solutions.

Jon Halladay

With 35+ years experience within the nuclear, energy and defence markets, Jon has a successful record in business leadership.  Starting his engineering career with a leading UK Nuclear and Defence organisation, he brings a wealth of experience in capital and service-related multi-disciplined projects, encompassing optioneering studies, design, build, commissioning, and training. He has led international business collaborations with organisations in the UK, France and Japan and served as a Civil Nuclear Business Specialist at the UK Department for International Trade.

As Veolia Nuclear Solutions Operations Director VNS UK, Jon is leading the development and delivery of VNS technology and services in close collaboration with Nuclear Industry Partners.

Julien Jachmich holds an engineering degree from INP Toulouse, with a specialization in energy and fluid mechanics. He began his career at Areva NP (Framatome) as a fluid systems engineer. After various positions as design engineer or commissioning engineer for the Olkiluoto 3 EPR project, he then took over engineering management positions for the Hinkley Point C EPR project, on which he worked for 5 years.

Julien joined Assystem in 2017, initially as manager of an entity in charge of developing the nuclear activities internationally, and became director of operations within the Cycle, Dismantling & Defense BU in 2020. In 2024, he took over the direction of the SMRs/AMRs (Advanced Modular Reactors) program.

Julien joins VNS in June 2025 as Director of Operations France.

Katerina Rambure

Katerina Rambure graduated as an engineer with a doctorate in environmental science and technologies, specialising in nuclear waste management and chemical process optimization. 

Her career began with an international research program from the French Ministry of Foreign Affairs, focusing on innovative methods for immobilising hazardous waste into recyclable matrices. 

In 2015, she joined Veolia where she gained experience in the global Health and Safety department, spanning all business sectors and as the Head of Waste Treatment Processing Optimization tools at Veolia France Waste Management. 

In October 2020, Katerina was appointed to the Management Committee of Veolia Nuclear Solutions. Her trajectory continued upward, and since July 2023, she is assuming the corporate role of Health, Safety, Environment Director of Veolia Nuclear Solutions.

Simon Delavalle

With an engineering diploma from one of France’s engineering schools of higher education, Simon began his career in surgical robotics, developing innovative solutions for brain surgery and keyhole operations. He then joined Oxford Technologies, where he led teams in designing and delivering robotics solutions for projects with ITER, Dounreay, Sellafield, and Fukushima. 

Simon is currently the Chief Technology Officer of Veolia Nuclear Solutions UK and Deputy CTO for Veolia Nuclear Solutions. In these roles, he oversees technically challenging projects for delivery to key customers.

Valerie Bielstein

Valerie Bielstein is a seasoned communications leader specialising in crafting impactful strategies that elevate brands and drive business growth. With a focus on the B2B technology and industrial sectors, she currently leads communication efforts as Communications Director at Veolia Nuclear Solutions. 

Her previous experience in senior marketing and communications roles at Capita Software Services honed her expertise in translating complex concepts into compelling messaging.  A Chartered Marketer and passionate advocate for strategic internal communications, Valerie brings a wealth of experience and a results-oriented approach to every challenge.