Miguel Ballesteros Santamaria

• Managing infrastructure service delivery for Siemens Iberia, overseeing SLA governance, incident escalation, and vendor coordination across the Iberian region.
• Acting as primary technical liaison between Atos delivery teams and Siemens stakeholders for infrastructure and workplace services.
• Driving service improvement initiatives aligned to ITIL best practices.

• Designed and scoped AWS cloud architectures for client migrations, covering compute (EC2, ECS), storage (S3, EFS), networking (VPC, Route53, CloudFront), and security (IAM, Security Groups, GuardDuty).
• Led technical presales for AWS migration opportunities: solution scoping, architecture diagrams, TCO analysis, and client presentations to stakeholders.
• Applied AWS Security best practices: IA

• PMO lead for the Atos Cloud Catalyst AWS practice, coordinating programme governance, reporting cadence, and delivery tracking for cloud migration engagements.
• Managed resource planning, risk registers, and milestone tracking across concurrent AWS project streams.
• Bridged technical delivery and commercial teams, supporting pipeline management and stakeholder reporting.

• Global Automation Architect for Digital Workplace environments across Atos CO&A, defining and executing the enterprise automation strategy for 10,000+ endpoint environments.
• Delivered ML-powered email triage POC (Ushur) reducing manual ticket creation time by automating free-text email classification and routing.
• Launched Ayehu Citizen Developer programme, empowering Service Desk technicians

• Programme Manager for the Global Siemens account, governing the integration of 214 Siemens business applications (including SAP and HR systems) into the Atos Service Desk.
• Managed cross-functional delivery teams across multiple geographies, coordinating technical and operational workstreams.
• Responsible for programme reporting, risk management, stakeholder communication, and continuous servi

Workplace & Service Desk (WSDS) Architect. WSDS global automation owner fot Siemens account. Automation expert in global automation program for workplace.

• Solution Architect for Service Desk and EUC environments in Spain and Portugal, responsible for end-to-end architecture design and presales for enterprise bids.
• Designed Workplace and EUC solutions covering Windows endpoint management, Active Directory, Group Policy, virtualisation, and service desk tooling.
• Led RFP/RFI responses: architecture, costing, capacity planning, and technical propo

Transition manager for several services onboardings in Atos Tenerife, from global companies.

Regional process owner of Services request for Spain and Portugal region, responsible of reporting and improvement process.

Tower Service Manager for backoffice teams of several HR services, including Recruitment, Learning & development, and International Mobility.

Manager and creator of Spain offshore team for Servers, Storage and Network for different customers.

Worked as Service Desk Team Leader at Atos.

Worked as Junior Network Engineer at Telefónica.

System Administrator, technical support and Graphic designer.

Support on site, remote and system administration for all offices.

Worked as Tecnico Sistemas at Codigo Demain.

Jun 2026 · Expires Jun 2029

Jul 2025

Aug 2025 · Expires Aug 2028

May 2025 · Expires May 2028

Jan 2024

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Jul 2019