About Alejandro
I’m Alejandro and I’m Telecommunications and Network Engineer specialized in secure network infrastructures, Cisco networking, Fortinet firewalls, VPN architectures and network troubleshooting.
Experienced in designing and delivering mission-critical communication systems for international projects in railway, transport and industrial environments.
I help companies with network architecture, firewall configuration, secure segmentation, VPN connectivity, technical documentation and infrastructure optimization.
Available for remote freelance projects, technical consulting and short-term assignments.
Spanish
Native or bilingual
English
Conversational
Remote only
Primarily works remotely
Experience
- SiemensProject Delivery Manager – Telecommunications InfrastructureJanuary 2021 - Today (5 years and 5 months)Madrid, Spain• • High-level telecommunications architecture for mission-critical railway infrastructures• • Telecommunications architecture design for railway communication networks• • Definition of secure architectures separating vital and non-vital communication networks• • Network segmentation and DMZ architecture for integration with operational systems• • Design and integration of high-availability fiber optic backbone networks• • Implementation of IP/MPLS telecommunications infrastructures• • Commissioning, testing and troubleshooting of telecommunications systems• • Technical coordination with international engineering teams and vendors• • Client interaction and technical documentation for delivered infrastructures
- CT IngenierosProject EngineerJanuary 2020 - January 2021 (1 year)Madrid, Spain• • Telecommunications network engineering for renewable energy infrastructures• • Design and integration of communication networks for energy systems• • Configuration and commissioning of communication equipment
- SistemProject Engineer – Air Navigation CommunicationsJanuary 2018 - January 2020 (2 years)Madrid, Spain• • Engineering services for Enaire communication systems• • Design and integration of airport and air traffic control communication networks• • Ground-to-ground and ground-to-air communication infrastructures• • Integration of analog and digital voice recording systems
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Education
- Bachelor Degree Telecommunications EngineeringUniversity of Alcalá2015Bachelor Degree Telecommunications Engineering
- Master in Blockchain and Business ApplicationsThree Points School2022Master in Blockchain and Business Applications