LEANDRO ENNE
Summary
Accomplished network and telecommunications expert with extensive knowledge in network design and architecture, security standards, and regulatory compliance. Demonstrates proficiency in infrastructure analysis, TCP/IP protocols, and WAN/LAN expertise, ensuring robust network security through effective policy implementation and incident response. Adept at customer and client management, leveraging active listening skills to address complex technical challenges. Committed to advancing artificial intelligence applications within networking environments to drive innovation and growth.
Overview
21
21
years of professional experience
4010
4010
years of post-secondary education
Work history
Senior Security Network Architect
AT&T
Mexico City, DF
07.2017 - 08.2025
- Participated in planning, design, and maintenance of IT infrastructure, focusing on performance monitoring.
- Delivered comprehensive infrastructure projects to operational teams, ensuring effective integration and documentation.
- Researched emerging technologies, providing strategic recommendations for performance enhancement.
- Evaluated best-practice methodologies aligned with evolving technology trends and client needs.
- Proactively assessed network vulnerabilities, implementing risk mitigation strategies for enhanced security.
- Defined standards for network design and testing methodologies to ensure project consistency.
- Maximised network performance through continuous monitoring and structured upgrade coordination.
- Facilitated meetings with cross-functional teams to communicate operational requirements clearly.
Telecom Security Consultant
AMDOCS
11.2022 - 05.2023
- Participated in the planning and documentation of mobile and fixed network infrastructures from a security perspective, focusing on evaluating cutting-edge equipment, systems, and vendors to ensure alignment with the highest industry security standards.
- Contributed to a government-led project involving classified information, delivering strategic network design and security frameworks tailored to support VIP positions and national security operations.
- Assessed and recommended best-in-class security technologies, ensuring compliance with strict regulatory and operational confidentiality requirements.
- Supported the integration of advanced security architectures into mission-critical environments, balancing operational efficiency with robust threat mitigation.
Senior Security Network Architect
Blue Networks Middle East/Brazil
05.2014 - 11.2016
- Designed and implemented security network architectures in complex carrier and enterprise environments, including 3G/LTE network expansions across multiple countries.
- Delivered IT infrastructure solutions involving firewalls, routers, switches, and load balancers, with hands-on administration of Cisco Nexus series, Microsoft Servers, Linux Servers, and DNS systems (Infoblox).
- Managed firewall configurations and administration across Check Point, Juniper, and Cisco platforms, including syntax conversions between systems.
- Engineered and deployed secure data center and telecom network configurations, ensuring high performance and resilience.
- Provided Tier 3 security support across Americas and EMEA, including escalation and case resolution via TAC (Technical Assistance Center) with leading vendors.
- Participated in capacity planning and trend analysis to ensure sufficient resource availability and optimal system performance.
Senior Security Network Architect
Nokia Mexico/Brazil
02.2009 - 04.2014
Senior Security Network Engineer
EDS an Hp Enterprise Services
11.2007 - 02.2009
Senior Security Consultant
Modulo Security Solutions
03.2005 - 10.2007
Education
Master of Business Administration - Artificial Intelligence, Data Science and Big Data for Business
IBMEC
Rio de JaneiroBachelor of Science - Mathematics
UERJ
Rio de JaneiroElectronics Engineering - Electronics
CEFET/RJ
Rio de JaneiroSkills
- Network growth forecasting
- Security standards compliance
- Client and customer management
- Active listening
- Regulatory compliance
- Problem solving
- Artificial intelligence expertise
- Incident response strategies
- Technical writing proficiency
- Network design and architecture
- Infrastructure analysis skills
- TCP/IP knowledge
- Security policy implementation
- VPN utilization
- IP networking expertise
- IPv4 and IPv6 proficiency
- WAN and LAN specialization
- Telecommunications expertise
- Router and switch installation skills
- Network security protocols
Websites
LANGUAGES
Portuguese
Native
English
Fluent
Spanish
Fluent
French
Intermediate
CORE COMPETENCIES
Cyber Security | Advanced Routing | Cloud Security | System Engineer | Technical Support Lead | SASE | Telecommunications Security
MAJOR TECHNOLOGIES
- Cisco
- Juniper
- Fortinet
- Checkpoint
- A10
- Microsoft Azure
- Palo Alto
- AWS
- Huawei
- Nokia
Affiliations
Hoobie in arts, music and photography.
Timeline
Telecom Security Consultant
AMDOCS
11.2022 - 05.2023
Senior Security Network Architect
AT&T
07.2017 - 08.2025
Senior Security Network Architect
Blue Networks Middle East/Brazil
05.2014 - 11.2016
Senior Security Network Architect
Nokia Mexico/Brazil
02.2009 - 04.2014
Senior Security Network Engineer
EDS an Hp Enterprise Services
11.2007 - 02.2009
Senior Security Consultant
Modulo Security Solutions
03.2005 - 10.2007
Master of Business Administration - Artificial Intelligence, Data Science and Big Data for Business
IBMEC
Bachelor of Science - Mathematics
UERJ
Electronics Engineering - Electronics
CEFET/RJ
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