Anastasios Sarantis
Enterprise Architect @CityFibre
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WORK HISTORY
Enterprise Architect @CityFibre
Milton Keynes, GB
Highly experienced Enterprise Architect with extensive knowledge in TM Forum telecommunication standards–frameworks, APIs, integration, microservices and event driven architecture. My experience as an Enterprise Architect includes defining, communicating, and publishing architecture principles and standards in different domains, as well as participating in RFI and RFP processes for the adoption of new application components, collaborating closely with stakeholders and suppliers to achieve seamless integration.Expert in TM Forum standards and frameworks including ODA, ODA Components, eTOM, Functional Framework, SID, and Open APIs, and have a proven track record in design, development, governance, and standardization, evidenced by my recognition as the Outstanding Contributor by the TM Forum in 2022.With over 20+ years of experience in the telecommunication IT industry, I have a deep understanding of various domains including Digital Domain, Customer Domain, Product Domain, Order Management, BSS systems, and OSS Systems. In-depth experience in the domains stated, utilizing APIs, events, and containerized service management patterns to seamlessly integrate IT systems and cloud iPaaS components across the enterprise.Key strengths include:• Practitioner of TOGAF architecture framework• Recognized TM Forum enterprise architect contributor with Outstanding Contributor Award 2022• Proficiency in TM Forum frameworks and standards such as ODA, ODA Components, eTOM, TAM, SID, and Open APIs• Strong integration, microservices, and API architecture skills• Experience in API design, management, and governance• Event-driven architecture expertise• Cloud solution architecture expertise
EDUCATION
University of Portsmouth
Bsc(Hons), Computing
Sheffield Hallam University
Msc, Multimedia Tech For E-commerce
SKILLS
ABOUT ANASTASIOS SARANTIS
Enterprise Architect with 20+ years of experience guiding complex digital transformations across the telecom IT landscape. My expertise lies in aligning architecture strategy with business goals using TM Forum standards, cloud-native technologies, and modern integration approaches.Recognized with the TM Forum Outstanding Contributor Award (2022), I bring hands-on and strategic experience across BSS/OSS domains—including Customer, Product, Order Management, and Digital Enablement—helping organizations modernize legacy systems and embrace API-first, event-driven, and microservices-based architectures.I lead the definition and governance of enterprise architecture principles, manage RFI/RFP processes for application transformation, and collaborate with cross-functional teams and vendors to enable seamless, standards-aligned integration across ecosystems. Core Specializations: • Enterprise Architecture Strategy (TOGAF Certified)• TM Forum Frameworks – ODA, eTOM, TAM, SID, Open APIs• Cloud Solution & Integration Architecture (iPaaS, Containerization)• Event-Driven & Microservices Architecture• API Design, Governance & Lifecycle Management• BSS/OSS Modernization & Domain Expertise• Vendor Evaluation & Multi-Stakeholder CollaborationAlways looking to drive innovation at scale—connecting architecture vision with practical delivery.
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