
Alexandre Riso
Senior IT Infrastructure & Cybersecurity Manager
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Paris, France
Freelance
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À propos
Introduction
IT Infrastructure & Cybersecurity Transition Manager with 25+ years leading complex digital transformations. Proven track record as CTO at Societe Generale, managing international teams and delivering regulatory compliance (DORA/NIS). Specialized in cloud migration, SDWAN deployment, and cost optimization for enterprise-scale organizations.
Expérience de travail
Transition Manager in IT Infrastructure & Cybersecurity || Chief Technical Officer || CTO
Self-employedFreelance
sept. 2024 - Présent
2 ans 2 mois
Paris, France
I offer service as Transition Manager specializing in IT infrastructures. Expert in complex project management and international team leadership, I am please to support organizations in their strategic challenges: • Digital transformation • Infrastructure optimization • Strengthening cybersecurity • IT cost control
Network & SASE Transition Manager
PluxeeFreelance
avr. 2025 - juil. 2025
4 mois
92130 Issy-les-Moulineaux, France
Interim mission to provide leadership and continuity while a new team leader is being recruited. Managing a team of 6 network engineers in an international, 100% Azure cloud environment.
Societe Generale
avr. 2015 - août 2024
9 ans 5 mois
Francfort-sur-le-Main, Allemagne
CTO Germany
janv. 2022 - août 2024
2 ans 8 mois
Francfort-sur-le-Main, Allemagne
Ensures efficient use of the IT budget. Unites teams around central standards. Stimulates inter-team collaboration, for better collective performance. Guarantees the optimal operation, consistency and security of the infrastructures hosting trading applications relying on central Teams. Main Key Achievements: • Organizational and Technological transformation of the Munich Branch • Follow DORA and NIS regulatory requirements
IT Network and Datacenter Coordinator
janv. 2020 - déc. 2022
3 ans
Paris, France
Technical Account Manager in the Hosting & Connectivity Service to ensure customer satisfaction for their IT Infrastructure. Lead complex projects and interactions between Société Générale branches ALD, SGEF with the IT Network Team in India. Main Key Achievements: • Deployment of a new remote access solution during the pandemic. • RFP and migration of an international MPLS WAN network into SDWAN • Redesign of LAN and WiFi networks of ALD branches in France
Head of Telecom Expense Management
avr. 2015 - déc. 2019
4 ans 9 mois
Paris, France
Head of Telecom Expense Management in the COO department. In charge of a team split between Paris, Bucharest and Bangalore, our responsibilities are: • Telecom Services procurement (Data, Voice, Mobile) • Telecom budget tracking, Billing control and Customer charge-back • Cost optimisation and performance tracking Main Key Achievements: • Redesign of the budgeting Process. • Deployment of the Telecom Expense Management Tool: MDSL • RFP on the Mobile fleet and project migration execution • Large savings and cost avoidances realisation • Activity offshored
EMEA Head of Networks & Telecoms
Newedge
avr. 2007 - mai 2015
8 ans 2 mois
Londres, Royaume-Uni
Hired as Network and Security Engineer at Fimat a worldwide leader of financial brokerage in execution and clearing services, in Paris office. I moved to London (United Kingdom) in 2009 as EMEA Head of Networks & Telecoms, our responsibilities included network design, implementation, configuration and administration of: • Customers connectivity • Exchanges connectivity (Euronext Liffe, Eurex, CME, London Stock Exchange...) • Offices and data-centers interconnection (WAN, MAN) • Office LAN • Telephony VoIP for Back Office • Telephony Etrali for Front Office • Remote access, Strong authentication • Internet access, Firewalls and content filtering • Telecom expenses management • Disaster Recovery Procedures and Tests Main Key Achievements: • Overhaul of the logical and physical LAN in Paris Office • Merge of Calyon Financial and Fimat global Networks • Overhaul of Firewalls security policies in Paris and London • EMEA Hub VPN IPSEC site to site implementation • Global Strong Authentication and remote access solution implementation • Organization of a Follow the Sun Network support • Telecom cost savings
IT Security Presales Engineer & Trainer
Exclusive Networks
mai 2005 - mai 2007
2 ans 1 mois
92100 Boulogne-Billancourt, France
Presales Engineer and Trainer at Exclusive Networks (Boulogne Billancourt - France) value added distributor of IT Security solutions - Aventail, Barracuda, F5, Fortinet, Ironport, Network Instruments • Scope the technical solution to address customer requirements • RFP answer with Account sales Manager. • Support targeted sales opportunities with distributed products • Provide training to customers for certifications on Fortinet and Ironport • Participate in conferences, shows, exhibitions Main Key Achievements: • Participation in Exclusive Networks creation • Multiple product demonstrations and proof of concept to support sales
Network Security Consultant
Cyber Networks
janv. 1999 - janv. 2005
6 ans 1 mois
69340 Francheville, France
Network & Security Consultant at Cyber Networks (Suresnes - France). Systems Design & Integration of security solutions for network architectures based on Firewalls, VPN, Proxys, Anti-virus, load balancer for a large number of clients. Main Key Achievements: • Public Key Infrastructure integration at the French Ministry of finances • Design and integration of the IT Infrastructure Monitoring at Radio France • In-depth knowledge of IT Security gained through many missions
Formation
Pierre and Marie Curie University
DESS
1999 - 2000
1 an 1 mois
ITIN
Chargé de projet informatique
1997 - 1999
2 ans 1 mois
Université de Poitiers
DUT
1994 - 1996
2 ans 1 mois
LYCEE BENJAMIN FRANKLIN
Bachelor's degree