LENNY BESSAY

Leading technology transformation across 80,000 servers, 4,900 applications, and 9,000 developers spanning Global Markets, Global Banking, Securities Services, and ALM&T. • Technology Vision & Enterprise Architecture: Authored 15+ reference architectures, technical standards, and guides translating business priorities (client-centricity, seamless AI adoption) into group-wide solutions • Governance Transformation: Permanent member of Architecture Review Board and Innovation Process Board, reviewing 50+ initiatives annually. Transformed governance from 3-month to 2-week approval cycles through self-service platforms and policy-as-code while maintaining regulatory compliance • Lead Architect Blockchain (Group scope): Accountable for all blockchain initiatives including CBDC experiments (Banque de France), multi-asset tokenisation platform, institutional wallets (Ethereum/Polygon connectivity). Reference architect on strategic programmes: Allfunds, Partior, Finality, tokenised money market funds • Defining and Building Blockchain Strategy for Digital Assets • Engineering & Cloud Migration: Co-leading Move-to-Cloud and Engineering pillars. Designed cloud-native architectures (Kubernetes, CI/CD, SRE, FinOps) delivering 25% cost reduction and 30% resilience improvement • Technical Audits & Due Diligence: Leading audits of payment platforms and exchanges, M&A due diligence with architecture/scalability/TCO assessment. Defined TIBCO RV exit strategy • AI/Data/Modern Platforms: Established AI governance (explainability, bias testing), designed MLOps platform (feature store, model registry), supported Data Mesh, established enterprise GenAI guidelines • Business Alignment & Compliance: Delivering architectures for credit origination, DCM/ECM, trading, risk management, settlement operations aligned with DORA, NIS2, MiFID II. Applying "functions to capabilities" methodology driving RAROC optimisation and operational risk reduction

Tech Consultancy Company

Led the Group's digital transformation under PSD2 and GDPR across SG and Crédit du Nord retail banking. Programme scope: €750M over 5 years, 1,500+ staff trained. • Digital Transformation & New Business Models: Architected the Group's response to PSD2 and GDPR, enabling Bank-as-a-Service, Bank-as-a-Platform, and Bank-as-an-Intermediary business models. Transformed banking infrastructure to support partner ecosystems and embedded finance • OBA: Defined and implemented enterprise-wide Open Banking framework embedding APIM, Microservices, EDA, and strategic DDD. • API Governance: Designed Group-wide API governance spanning SG and Crédit du Nord, ensuring consistency, security, and reusability of digital services. Established standards, lifecycle management, and quality gates across business domains • API Management Platform: Co-built tailored APIM platform adapted to retail banking requirements and structured around banking domains defined by enterprise architecture. Enabled secure exposition of banking capabilities to internal and external consumers • Training & Capability Building: Trained 1,500+ IT professionals (architects, developers, functional profiles), accelerating adoption of standards and best practices. Certified 10 domain experts per area, building sustainable internal expertise • CRM Modernisation: Led Customer Relationship Management modernisation, migrating from monolithic Siebel to modular, distributed architecture organized around banking business objects. Improved scalability, maintainability, and time-to-market • Omnichannel Customer Journeys: Supported business programmes designing seamless customer experiences across web, mobile, branch, and call centre. Applied customer-centric design to key journeys including onboarding, lending, and advisory • One Bank Merger: Key contributor to SG-Crédit du Nord merger, harmonizing technology stacks, rationalizing applications, and defining target architecture for unified retail banking platform

Led strategic growth and operational excellence for a digital services company, scaling operations from 260 to 850 consultants while building high-performing delivery teams and securing major client engagements. • Strategic Growth Leadership: Drove company expansion from 260 to 850 consultants through recruitment strategies aligned with business growth objectives. Defined skill requirements, hiring roadmaps, and capacity planning to support revenue targets and client demand • Team Building & Leadership: Built and managed high-performing consulting teams, recruiting top-tier talent across architecture, development, and functional domains. Delivered strategic projects exceeding client expectations while maintaining quality standards and consultant engagement • Bid Management & Client Engagement: Led RFP responses and proposal development for major client opportunities. Presented technical solutions and delivery approaches to C-level stakeholders, securing critical contracts and long-term partnerships. Translated client business challenges into compelling technical proposals • Talent Development & Excellence: Mentored consultants on technical skills, methodologies, and client management. Established training programmes ensuring alignment with evolving market needs. Fostered culture of continuous improvement, knowledge sharing, and professional development • Delivery Excellence & Client Satisfaction: Ensured successful project delivery across client portfolio through governance, quality assurance, and proactive risk management. Maintained strong client relationships driving repeat business and account growth Impact: 3x workforce growth (260 to 850 consultants), major client wins through competitive bids, consultant capability development, delivery excellence across strategic accounts

Led enterprise-wide identity and access management transformation, migrating global IAM platform supporting 350k accounts and processing 325k + daily web service calls. Managed €7M budget and 600+ contributors across technical and business domains. • Global IAM Migration: Successfully led migration of enterprise identity and access management platform serving 350k user accounts globally. Ensured zero-downtime transition, data integrity, and business continuity across all regions and business units • High-Volume Transaction Processing: Architected and deployed platform handling 325k + daily web service calls with strict SLA requirements for authentication, authorization, and provisioning services. Implemented performance optimisation and scalability measures • Infrastructure Modernisation: Oversaw significant application infrastructure upgrades including compute, storage, and network components. Integrated advanced monitoring systems enhancing system performance, reliability, and observability • Security Enhancement: Implemented strong authentication mechanisms leveraging smartcard technology and PKI. Reinforced security posture meeting enterprise standards for privileged access, compliance requirements, and zero-trust principles • Architecture Leadership: Authored comprehensive architectural documentation including target architecture, migration roadmaps, integration patterns, and operational procedures. Guided strategic decisions throughout project lifecycle ensuring alignment with enterprise standards • Cross-functional Leadership: Managed team of 600+ contributors spanning architects, developers, infrastructure engineers, security specialists, and business stakeholders. Coordinated deployment, testing, and validation activities across private cloud environment • Programme & Budget Management: Delivered €7M programme. Managed vendor relationships, resource allocation, risk mitigation, and stakeholder communications ensuring strategic alignment

Provided architectural leadership across enterprise Java/JEE initiatives, establishing software engineering standards and implementing modern DevOps platforms to drive efficiency, quality, and operational excellence. • Software Architecture Leadership: Delivered expert architectural guidance on Java/JEE technologies, defining application architectures, integration patterns, and technical roadmaps. Advised development teams on design decisions, scalability considerations, and architectural best practices • Project Industrialisation & Efficiency: Led efficient industrialisation of multiple projects, establishing standardized development processes, CI/CD pipelines, and automation frameworks. Streamlined delivery workflows reducing time-to-market and improving predictability • Architecture Standards & Governance: Authored enterprise design standards, architectural guidelines, and coding conventions ensuring consistency and quality across software development lifecycle. Established architecture review processes, quality gates, and technical governance • Complex Migration & Modernisation: Architected and guided complex technical migrations including application modernisation, platform upgrades, and technology stack transitions. Designed migration strategies ensuring seamless, risk-mitigated transitions with minimal business disruption • Software Factory Architecture: Designed and operated enterprise software factory environment, defining toolchain architecture, automation workflows, build pipelines, and operational procedures. Drove performance optimisation and operational excellence across development lifecycle • DevOps Platform Implementation: Architected and implemented modern development factory leveraging Git, GitLab, Jenkins, SonarQube (static code analysis and quality metrics), and Nexus (artifact repository management). Delivered significant improvements in development efficiency, code quality metrics, defect detection, and release velocity

Led architectural design and implementation of enterprise customer repository, establishing centralized data management capabilities and providing technical leadership across development teams. • Customer Repository Architecture: Architected and led implementation of centralized customer repository serving as single source of truth for customer data across enterprise systems. Designed data model, integration patterns, API, and synchronization mechanisms improving data consistency, accessibility, and governance • Strategic Architecture Leadership: Directed architectural decisions aligning technology solutions with strategic business goals. Defined target architecture, technical roadmaps, and implementation strategies. Fostered collaboration between cross-functional teams including business stakeholders, data architects, developers, and infrastructure teams ensuring shared understanding and commitment • Technical Mentoring & Coaching: Provided guidance and mentoring to development teams, elevating technical skills and capabilities. Conducted architecture reviews, code reviews, and design sessions ensuring alignment with architectural best practices, design patterns, and enterprise standards. Built internal expertise through knowledge transfer and hands-on coaching • Integration Architecture: Designed integration architecture connecting customer repository with upstream and downstream systems. Implemented event-driven patterns, real-time synchronization, and batch processing ensuring data consistency across enterprise landscape Technologies: Java/JEE, Spring Framework, RESTful APIs, Microservices, Data Modeling, Master Data Management, Integration Patterns, Event-Driven Architecture

* Cross-functional Mission: Led cross-functional initiatives within the IT department, ensuring alignment of technical solutions with business objectives. * Architecture and Design: Played a key role in architectural decision-making, overseeing technical designs and driving adoption of best practices across development teams. * Technology Solutions: Delivered impactful solutions that supported AXA’s B2B services, leveraging deep expertise in Java/JEE and enterprise software development.

* Backend Development: Worked as a Java/JEE back-end developer, contributing to various enterprise-level projects and ensuring scalable and reliable code delivery. * Cross-functional Collaboration: Collaborated with architects and business stakeholders to deliver solutions aligned with client objectives, optimizing performance and scalability.