About Ghislain
English
Fluent
French
Native or bilingual
German
Fluent
Experience
- Porsche AGSenior Product OwnerNovember 2023 - Today (2 years and 8 months)Stuttgart, GermanyOwn Porsche's enterprise Atlassian collaboration and CI/CD toolchain for 20,000 internal and external users across 4 on prem instances. Mandate: hold platform stability and security while preparing migration to Atlassian Cloud SaaS. Budget steered: €2–3M per year. Vendor portfolio: 2 to 10 providers. Indirect PO leadership of a 7 to 10 person service-provider team (matrix model). Rationalized the plugin footprint from 55 to 30 across 4 on-prem instances, delivering ~€120k annualized cost• •
- Daimler Mobility AGTech Lead → Lead Software DeveloperMarch 2019 - October 2020 (1 year and 7 months)Stuttgart, GermanyTechnical leadership of a pay-how-you-drive telematics insurance product for Mercedes-Benz vehicles, owned by DaimlerMobility, covering 10,000+ connected vehicles across 12 European markets. Team: 3 internal Stuttgart-baseddevelopers.Architected and led the monolith → microservices migration (Java Spring Boot and Micronaut, Kubernetes on hybridcloudOpenShift), including API ecosystem design.Introduced TDD with 90% SonarQube coverage quality gate as a required merge criterion. Cut API response time by ~40% (internal benchmark) via systematic refactor of legacy endpoints.Shifted delivery cadence from a fixed release train to on-demand deployment, raising production deployment frequency. Removed material tech debt via structured codebase audits and team-wide refactor sprints. Mentored 3 junior developers through code review and pair programming; 2 advanced to senior level during my tenure.
- Mercedes-Benz Bank AGSenior Technical Program Manager (promoted from Product Owner)October 2020 - October 2023 (3 years)70 Stuttgart, GermanyMandate: close a BaFin 2019 F1 audit finding on the lack of a unified, auditable software development toolchain at MBB. Built the regulatory-compliant BizDevSecOps platform covering the full SDLC under BAIT 7. Budget: €5M over 3 years. Team: 2 internal + 7 external engineers. Internal customer base: ~50 developers. Started as Product Owner (6 months). Promoted to Senior Technical Program Manager after supervisor unavailability; took over stakeholder management, procurement, vendor contracts, steering committee representation, and program budget. Delivered a unified, auditable BizDevSecOps toolchain (GitHub, GitHub Actions, Artifactory, Teamscale, Jira,• • Confluence) inside the BaFin buffer window, closing the F1 finding and passing BaFin review. Covered the full BAIT 7 scope end to end: SCM, CI/CD, artifact management, test automation, release management, ticket management, documentation, business-requirements management, and IKS controls. Handed over rollout of 100 software projects to a successor Program Manager; rollout completed post-handover. Steered procurement and contract management for 7 external vendors on a €5M / 3-year envelope. Represented the program in steering committee and QA gates; authored decision papers for BaFin-relevant investment decisions.• •• •• •• •• • cloud OpenShift), including API ecosystem design. Introduced TDD with 90% SonarQube coverage quality gate as a required merge criterion. Cut API response time by ~40% (internal benchmark) via systematic refactor of legacy endpoints. Shifted delivery cadence from a fixed release train to on-demand deployment, raising production deployment frequency. Removed material tech debt via structured codebase audits and team-wide refactor sprints. Mentored 3 junior developers through code review and pair programming; 2 advanced to senior level during my tenure.
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Education
- MBABusiness and Society2023MBA
- B.A.Sc.Hochschule Worms2012B.A.Sc.