RAUL CONTRERAS
Network Engineer
Santiago
Summary
Network Engineer with 11 years of experience specializing in designing, implementing, and maintaining LAN, WAN, wireless, security, and cloud solutions. Known for a strong ability to propose customer-focused solutions that prioritize security and reliability. Adaptable to diverse work environments, with proven capacity to quickly adjust to changing conditions and team dynamics. Strong planning skills enable effective work organization, ensuring timely delivery of projects and adherence to deadlines. An emphasis on continuous research provides an up-to-date perspective, enabling innovative and effective solutions. Assertive communication skills facilitate the efficient resolution of technical issues in collaborative environments and project management. Consistently delivering friendly and efficient service to customers, effectively managing and resolving challenging situations.
Overview
12
12
years of professional experience
7
7
Certifications
2
2
Languages
Work History
Senior Network Support Engineer
Claro Chile
01.2018 - Current
- Company Overview: Claro Chile, part of América Móvil, delivers enterprise IT solutions at Liray Data Center, offering cloud, connectivity, and secure infrastructure with high availability, supporting business continuity and digital transformation.
- Designed and implemented network infrastructures, enabling secure intra- and inter-data center connectivity through SD-WAN and IPsec VPN solutions.
- Managed FORTINET SD-WAN platforms for 4+ years, including the migration of several branches and integration of MPLS, STARLINK, and 4G/5G links, achieving seamless connectivity and improved network performance
- Performed remote fault analysis and resolution for enterprise-level network users, using systematic troubleshooting and implementing necessary fixes.
- Proactively developed relationships with key stakeholders within client organizations, fostering trust in our ability to deliver reliable network support services.
- Deployed projects involving Cisco technologies such as ASA, Firepower, WLC 9800-CL, WLC 5500, Catalyst 9500, Catalyst 6807-XL, and Nexus 3K/5K for data center solutions.
- Contributed to building a more resilient IT infrastructure by collaborating closely with other engineering teams on large-scale projects.
- Created HLD and LLD documentation to support the process.
- Improved BGP routing protocol configurations, optimizing the utilization of data links and achieving effective load balancing across resources
- Optimized network performance across different layers to enhance security and ensure high availability, meeting stringent SLA requirements
- Managed security solutions including Cisco ASA, FortiGate, and Firepower, configuring VPN services, URL filtering, service publishing, and NAC with profile-based access control.
- Maintained and optimized F5 Big-IP LTM systems, managing SSL certificates and ensuring seamless service delivery
- Implemented SNMPv2/v3 monitoring with SolarWinds, PRTG, or Nagios, enabling proactive network issue detection and resolution, significantly reducing downtime and improving operational visibility.
- Provided technical guidance and mentorship to junior engineers, fostering a culture of continuous learning and improvement.
- Key Achievement: Led a critical network migration project, relocating infrastructure to a new data center with low service interruptions, on time and within budget.
- Key Achievement: Streamlined network performance for a major client by identifying inefficiencies, implementing QoS policies, and optimizing bandwidth utilization
- Industries: ISP, Healthcare, and retail
Senior Network Engineer L2
Inpact SA
01.2016 - 01.2018
- Company Overview: Website not provided
- Achieved a 99.9% SLA compliance rate by implementing high-availability systems and resolving daily operational issues for service provider and data center clients
- Supported the design and deployment of Firepower security solutions, integrating user access and navigation profile management
- Conducted vulnerability assessments based on ethical hacking and ISO 27000/27001 standards, identifying and mitigating risks in client network infrastructures
- Managed virtual environments through VMware, implementing proactive monitoring and regular updates to ensure system stability and reduce downtime
- Website not provided
- Key Achievement: Designed and implemented a Firepower security solution, enhancing client network protection by addressing traffic patterns and bottlenecks
- Key Achievement: Reduced security risks by performing detailed vulnerability assessments and implementing corrective measures for critical systems
- Industries: Financial institution, Supermarket industry and Healthcare
Field Service Engineer
Gandalf Comunicaciones CA
01.2015 - 12.2015
- Company Overview: Website not provided
- Implemented and managed Cisco network solutions for ISP providers, integrating fiber optic WAN links and optimizing bandwidth through QoS policies
- Provided tailored recommendations to enhance the stability of infrastructure components for enterprise clients
- Website not provided
- Key Achievement: Spearheaded the successful integration of a fiber optic WAN link for a large ISP client, significantly improving data transmission speed and reliability
- Key Achievement: Improved client satisfaction by providing actionable insights for infrastructure improvements, enhancing service quality
- Industries: ISP
Engineering Analyst
Atel Comunicaciones CA
01.2013 - 12.2015
- Company Overview: Website not provided
- Collaborated with cross-functional teams to ensure successful project delivery within budget and timelines
- Website not provided
- Key Achievement: Designed and executed a critical RF communication system for a mining client, ensuring reliable communication in challenging terrains
- Key Achievement: Enhanced operational efficiency by introducing innovative solutions tailored to client-specific needs
- Industries: Upstream oil industry
Education
M.D. - Computer Networking And Telecommunications
University “Dr. Rafael Belloso Chacín”
Maracaibo, Venezuela 01.2008 - 2013.01
Skills
- DATA CENTER
Network troubleshooting
IP addressing
Customer support
Wireless networking
Routing protocols
Network design
undefinedCertification
Cisco Certified Specialist - Enterprise SD-WAN Implementation, Cisco Systems, 08/01/24, True, https://www.credly.com/badges/3db74339-f77d-45d6-8044-c9658f7cda06
Personal Information
- Relocation: Open to relocation
- Nationality: Chilean
Timeline
Senior Network Support Engineer
Claro Chile
01.2018 - Current
Senior Network Engineer L2
Inpact SA
01.2016 - 01.2018
Field Service Engineer
Gandalf Comunicaciones CA
01.2015 - 12.2015
Engineering Analyst
Atel Comunicaciones CA
01.2013 - 12.2015
M.D. - Computer Networking And Telecommunications
University “Dr. Rafael Belloso Chacín”
01.2008 - 2013.01
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