What I have done over the years.
Today…
Telecom Core Solution Architect
Madrid, Spain · May 2024 – Present
-
☑️ Own end-to-end (E2E) solution architecture for Policy & Charging transformation programs (legacy → 5G SA) across 6 markets, aligning Operating Companies (OpCos) requirements with Group governance and multi-vendor (e.g., Nokia, Oracle, Mavenir) constraints
☑️ Lead E2E Policy architecture decisions, driving High-Level Design (HLD) standardization, interface alignment, and operational readiness across multi-vendor deployments.
☑️ Establish CaaS capacity guardrails and engineering limits, translating platform constraints into scalable resource allocation rules that protect service stability and performance.
☑️ Govern E2E lifecycle management (LCM) planning for Policy products and supporting platforms (e.g., VMware / OpenShift), coordinating upgrade readiness, compatibility validation and risk mitigations.
☑️ Shape RFQs and vendor roadmap alignment, contributing to evaluation criteria, solution trade-offs and design-to-cost decisions.
☑️ Perform feasibility and cost–benefit assessments for new capabilities, translating business requests into implementable architectures and proposing pragmatic alternatives when needed.
Solution Authority - Core Design & Engineering
Madrid, Spain · May 2022 – May 2024
-
☑️ Acted as solution authority for Vodafone Spain’s 5G SA Core rollout, serving as the primary technical bridge between local engineering teams, Vodafone Group, and vendors to drive design sign-off and go-live readiness.
☑️ Drove technical governance for core functions, contributing to capacity definitions (cBOMs) and HLD discussions for Policy & Charging while ensuring local requirements aligned with Group standards and platform constraints.
☑️ Architected and led the E2E technical design for Private and Hybrid Mobile Private Network (MPN) solutions across 3 European markets, leveraging multi-vendor ecosystems (e.g., Ericsson, Huawei, Athonet) and directly supporting a €13M contract win (2023).
☑️ Oversaw engineering delivery and acceptance testing for MEC-enabled solutions with AWS, aligning integration scope, acceptance criteria, and stakeholder implementation alignment for deployment.
☑️ Enabled the transition to cloud-native 5G Core architectures by driving structured knowledge transfer and technical upskilling for legacy 4G-oriented teams.
Telco Platform Orchestrator Developer
Barcelona, Spain · Jan 2021 – Sep 2021
-
☑️ Built early-stage interworking and traffic-steering components for a proprietary 5G orchestrator, supporting feasibility work around Casa Systems PCRF integration.
☑️ Automated CI/CD workflows and improved pipeline reliability, reducing manual steps and accelerating release cadence for customer deliveries.
☑️ Delivered internal enablement on 5G policy concepts, improving design consistency and team execution.
☑️ Automated orchestration workflows to reduce manual configuration time.
☑️ Assisted in proof-of-concept demos for strategic 5G pilot projects.
Telecommunications Research Engineer
Madrid, Spain · Feb 2020 – June 2020
-
☑️ Explored state-of-the-art 5G-NPN technologies for industrial and vehicular use cases.
☑️ Proposed a fog-enabled 5G architecture for Cellular Vehicle-to-Everything (C-V2X) applications.
☑️ Evaluated latency and reliability performance in simulated 5G environments.
☑️ Collaborated with cross-disciplinary research teams to refine architecture models and documentation.
Telecommunications Research Engineer
Barcelona, Spain · Dec 2017 – Dec 2020
-
☑️ Designed and analyzed SDN, NFV, and Network Slicing architectures with MANO integration.
☑️ Built a 5G testbed platform and implemented cost-efficient VNF placement algorithms.
☑️ Authored 4 peer-reviewed academic publications.
☑️ Awarded Marie Skłodowska-Curie ESR and AGAUR Fellowships for PhD research excellence.
☑️ Conducted performance benchmarking and traffic analysis for MEC-enabled 5G systems.
☑️ Contributed to technical deliverables and consortium reports in international EU projects.
Senior Technical Support Engineer
Athens, Greece · Nov 2015 – Nov 2017
-
☑️ Monitored and troubleshooted operational and networking issues, improving KPI performance.
☑️ Administered the monitoring infrastructure (Nagios, Grafana), reducing alerts by 90% and improving team response by 50%.
☑️ Trained and supervised support engineers, enhancing departmental efficiency and collaboration.
☑️ Escalated bugs to DevOps, supported release deployments, and expanded the internal knowledge base.
☑️ Authored and updated technical documentation to standardize troubleshooting procedures.
☑️ Collaborated cross-functionally with QA and product teams to identify and resolve recurring service issues.
Communications Technician
Athens, Greece · Nov 2014 – Aug 2015
-
☑️ Diagnosed and resolved hardware and software issues using specialized diagnostic tools.
☑️ Delivered remote troubleshooting assistance via the Ministry’s help desk.
☑️ Configured and maintained secure workstations and network devices.
☑️ Removed malware and security threats from classified systems to prevent data breaches.
☑️ Ensured compliance with strict security policies and documentation standards.
☑️ Supported the setup of communication systems for classified field operations.
Research Intern
Greece · Oct 2013 – Jul 2014
-
☑️ Supported the deployment of virtualized infrastructures for the SAVASA (285621) and T-NOVA (619520) projects.
☑️ Administered and maintained existing and new server infrastructure across multiple research initiatives.
☑️ Assisted in testing and evaluating cloud-based service environments for performance and reliability.
☑️ Collaborated with senior engineers to document processes and improve VM provisioning workflows.
☑️ Improved internal efficiency by automating basic maintenance tasks with shell scripts.