Marlene Sánchez

Customer Success Manager

Madrid, Community of Madrid, Spain24 yrs experience

Highly Stable

Key Highlights

PMP® and PRINCE2® certified project manager.
Maintained customer retention rates above 90%.
Led $50M+ signaling network rollouts for mobile operators.

Stackforce AI infers this person is a Senior Project Manager in Telecommunications and IT sectors.

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Skills

Core Skills

Customer Success ManagementAccount ManagementProject ManagementTelecommunicationsIt Infrastructure Management

Other Skills

Agile & Waterfall MethodologiesAgile MethodologiesAgile Project ManagementAmdocs CRMBrazilian PortugueseBusiness ReviewsBusiness StrategyBusiness reviewCall Center ArchitectureCall Center Systems IntegrationChange ManagementClientSuccessCloud ComputingCommunicationComplex Project Management

About

PMP® and PRINCE2® certified Senior Project Manager with extensive experience delivering complex IT and telecom projects across EMEA and LATAM. I have successfully led large-scale implementations — including $50M+ signaling network rollouts for mobile operators — and thrive in dynamic, cross-functional environments. Over the years, I’ve also worked in Customer Success roles, especially within tech and telematics, where I balanced project delivery with strategic account management. By combining these skills, I consistently maintained retention rates above 90%, drove adoption, and led Quarterly Business Reviews (QBRs) and health score management initiatives. I'm passionate about project structure, client success, and process efficiency. I also enjoy exploring no-code platforms — having designed and built functional apps with Glide, and worked on automation, integrations, and database structuring.

Experience

24 yrs

Total Experience

5 yrs 9 mos

Average Tenure

11 mos

Current Experience

Seequent

Senior Customer Success Manager

Jul 2025 – Present · 11 mos · Madrid, Community of Madrid, Spain · Remote

Support customers leveraging advanced 3D subsurface modelling and data integration solutions to drive better decision-making across mining, civil, energy, and environmental projects.
Lead account renewals and drive up and cross-sell growth across the European region, maintaining rates above 90%.
Support customers in maximizing product adoption and value realization to ensure long term success and retention.
Proactively monitor customer satisfaction, implementing strategies to enhance user experience and strengthen loyalty.
Identify and develop new business opportunities withing existing accounts.
Build and nurture strong relationships with key stakeholders, expanding engagement across users, teams, and projects.

Customer Success ManagementAccount ManagementStakeholder Engagement

Zendrive

Senior Customer Success Manager

Jun 2019 – Feb 2025 · 5 yrs 8 mos · Madrid, Community of Madrid, Spain · Remote

Orchestrated customer success strategies, achieving high client retention rates and driving upsell opportunities through effective relationship management and data-driven insights.
Conducted Quarterly Business Reviews (QBRs), managed NPS surveys, and monitored account health with RAG (Red-Amber-Green) reviews to ensure customer satisfaction and address risks proactively.
Managed customer accounts as a project manager, overseeing schedules, project planning, SOWs, change requests, budgets, and final acceptance.
Ensured project delivery aligned with customer requirements, collaborating with cross-functional teams to mitigate risks and resolve issues.

Customer Success StrategiesProject ManagementData AnalysisCustomer Success Management

Arvato systems

Senior Project Manager

Apr 2018 – May 2019 · 1 yr 1 mo · Madrid, Community of Madrid, Spain · Hybrid

European Medicines Verification Project Management: Led the project for Portugal, ensuring alignment with NMVO standards across other countries.
Stakeholder Coordination: Conducted weekly alignment meetings to track national project progress and update project plans.
Cross-functional Interface Management: Acted as the liaison between MVO PT and Arvato Germany, overseeing development, and testing activities.

Project ManagementStakeholder CoordinationCross-functional Interface Management

Oracle

Senior Project Manager

Jan 2007 – Mar 2017 · 10 yrs 2 mos · Rio de Janeiro, Brazil · Hybrid

Managed LATAM accounts, leading the development of project plans, status reporting, communication strategies, and comprehensive risk and financial analyses.
Successfully delivered multiple complex projects to implement signaling networks (SS7 and Diameter) for mobile operators across Latin America, ensuring seamless integration and alignment with customer business objectives.
Deployed a nationwide signaling network in Brazil, ensuring successful delivery and alignment with customer business goals.
Oversaw the deployment of signaling network servers for telecom mobile network operators, managing end-to-end infrastructure rollout, software integration, upgrades, validation testing, and final acceptance processes.

Project PlanningRisk AnalysisTelecommunicationsProject Management

Tim brasil

Senior Project Manager

Oct 2000 – Dec 2006 · 6 yrs 2 mos · Rio de Janeiro, Brazil · On-site

Deployed the data center and call center IT and Telecom infrastructure in three sites in Brazil (Rio de Janeiro, São Paulo, and Curitiba).
Successfully implemented and managed the IT support team.
Managed all call center systems integrations (SAP, Amdocs, IVR, Avaya infrastructure and recording system) and negotiated provider contracts (Avaya and Cisco).

IT Infrastructure ManagementCall Center Systems IntegrationNegotiationProject Management