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Engineer Service

Tampa, Florida, United States
February 13, 2018

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Summary of Qualifications

Seasoned network engineer in telecommunication industry. Bilingual (Spanish / English). Thorough, conscientious, always delivers, excellent judgment, meet deadlines, works well with others, great leader.

Technical Skills

Protocol Analyzers and tools: SS7, ANSI IS-41, ANSI ITU, Diameter, SIP, HP Access SS7, INET Spectra, Net cool, Procom, MS Office, Visio, Wireshark, TCPDump, Seagull, dsTest. HP ALM, IRIS, Jira, Java, Python, Scala

Employment History

Comcast, Sr. IMS Engineer, Moorestown, NJ Jun 30, 2017 – Current

System integration and functional testing on routing and switching.

Configuration of IPV4, IPV6 interfaces, L2 / L3 protocols: EIGRP, OSPF, IMS, SIP, ISIS, BGP, MPLS VPNs, Multicast, SNMP and bridging.

Java, PERL, Python, Scala and shell scripting.

Analysis and troubleshooting of IMS signaling flows.

Extensive use of GL Comm, IRIS, Spectra, HP ALM, Rally, Jira, Wireshark, TCP Dumps and load generators tools for debugging and troubleshooting.

Testing and Virtualization of CSCF functions in cloud technologies such as: The use of Leaf-Spine SDN (Daylight, Rasberry PI, Zodia FX controllers: Packet in switch event, flow mod, application management, ) deployment, Apache Spark, Openstack (different versions), AWS, Azure, Docker, Kubernetes, Github, Jenkins, implementation in commodity hardware, open source software like Linux (different flavors). Combination of the above cloud technologies has been implemented in the virtualization strategy of the following IMS core network functions: P/S/I CSCF, BGF, IBGF, TAS, MRFC, MRF, SPG, HSS, PCRF, ENUM, MGCF, MGF among others.

Oracle Inc, Solution Architect, Morrisville, NC Jul, 2015 – May 31, 2017

Primary responsibility is to work as a member of a team to bring connectivity to remote Demo labs.

Configuration Cisco firewalls, VPN's, and routing and switching as required by projects.

Configuration of Juniper firewall, F5s and SANs.

To coordinate, communicate, and connect with remote peers as per project requires.

To collaborate on designs, and implement key company network systems and applications for Global Business Unit marketing group Demos.

To evaluate current and foreseeable future Application visualizations to determine appropriate network environment solutions.

To work with Directors to develop project use cases, document, and create tests demos in a timely manner.

To ensures systems are properly documented, controlled for change, and monitored for up time and performance.

To facilitate the selection and implementation of network, communication and systems infrastructure to match the global needs of future applications.

To identify, develop, implement, and maintain high level industry standard and best practices.

To work with vendors and others to formulate demo designs.

To develop and document new and existing demo designs and setups.

To collaborate with other team members on technologies needed for customer proof of concepts and standards.

To participate in the assessment and strategy planning of Network Function Virtualization as directed.

To provide recommendations on proper tools and network environment selection that ensure scalability.

To identify, interact, and provide high level of service with internal and external customer ensuring demo needs are being met.

To cross train peers and junior staff, Consulting Technical Managers, Sales Engineers as required to support on new application demos designs.

Responsible for the implementation of the Product Virtualization demos with different types of hyper-visors (KVM, Oracel Virtualization Environment, VMWare, Openstack, Virtual Box), several Linux Flavors and Ceph.

Redesign of the Demo Lab switch layer (Cisco 4948, 3924), switch upgrade path and frames cabling.

Consolidation and upgrade of Servers (Sun X5-2, HP Proliant G4-8), SANs.

Design and creation of test simulations for EAGLE STPs, DSR, PIC, PCRF, IMS, EPC, 3GPP and IP-CAN network elements.

Management of the Demo Lab hardware inventory and Lab IP Plan.

Configuration of DNS in different Linux flavors (Ubuntu, Open Suse, Oracle Linux) and Cloud environments (Open Stack, MVWare, KMV, Virtual Box), definition of canonical names, start of authority, Authoritative configurations, TTLs, Forward and Reverse Zones (Primary, Secondary, Stub) as well as PTR records, forwarders (root hints, .com among others). These DNS servers were implemented in bear bone servers and virtualized environments for multiple company projects demonstrations.

Syniverse Technologies, LTE Network Deployment Senior Engineer II, Tampa, FL Dec 2013 – Jul 2015

Planned and designed the future corporate FW, DMVPN, QoS and MPLS cloud.

Configured of LTE peering node connections through IPX cloud. Optimization of the traffic implementing QoS for the service by applying ToS or DifServ when applicable. Extensive use of CBWFQ / LLQ, RED, GTS to manage router in/out queues as well as the application of QoS policers, NBAR, switch QoS DSCP Mutations, QoS precedence/DSCP trusts, QoS COS overrides. Definition of QoS strategies based on CAR, CIR, Fragmentation rate, BC rate, network congestion traffic history.

Configured and maintained new equipment and software for Juniper EX2200, EX3300 switches; Juniper, Cisco ASA & Check Point firewall, TACAS, Cisco Catalyst 2900, Nexus 7000 and 5000 switches, SANs, F5 load balancers (Server clustering, Local Traffic Management, Global Traffic Management, Source port management, Application Delivery Management using iRules), Aruba wireless IAPs and Controllers for de corporate data network.

Utilized monitoring tools to evaluate Firewall/ VPN, MPLS, QoS performance and evaluated where we need to apply changes to growing areas in the corporate data network.

Maintained Network drawings and documents with current FW, DMVPN, QoS, MPLS configurations and supported data (i.e. vendors, circuit ID’s, support contacts).

Deployed corporate wide Cisco IP Phones, Tele-presence devices, Voice mail, Hunt list, configured Call Manager and Cisco Unity Servers.

Discovered automation opportunities. Extensive use of test labs and simulations software to replicate designed configurations and MOPs creations.

Configured Sigtran links for the Telco Signaling Transfer Points.

Syniverse Technologies, LTE & SS7 Network Support Engineer II, Tampa FL Feb 2009 – Dec 2013

Responsible for the operation of GSM, ANSI41, TCAP services, SS7, ITU, IP network backbone. Provided technical support for GSM, SS7 and IP networks and service application issues. Strive to improve customer satisfaction, reports, and other tools to proactively detect service degradation in the network and restore quality service. Resolve signaling service issues and networking, BGP, OSPF, ISIS, MPLS and Multicast routing, with peers in the NOC and Application Support areas to facilitate rapid problem resolution.

Application of Knowledge of Diameter Signaling Routing (DSR). Configuration of: CEX, NO/SO Application IDs, Peer Nodes (HSS, MME and DSRs) creation, Connection Sets, Local Nodes, Connection Capacity, Egress Messages Throttling, Message Priority sets, SCTP connection, Routes lists, Reroute based on Application ID and AVP result codes in answer messages, Rule application based on destination realm/host as well as on origin realm/host, Alarm threshold setup, RBAR configuration base on MSISDN, IMSI, IPv4/IPv6 address for LTE HSS / IMS HSS/ PCRF/OCS/OFCS applications, RBAR exception for send answer with Result-code AVP, Modification RBAR system values. Capacity planning of Per-Connection Ingress MPS, DA-MP, Remote Busy, Message Priority, Message throttling, Pending transactions.


Master Network Communication Management, Tampa, FL Jun 2013

Keller of Devry University

Post-Grade in Total Quality Management, Santiago, Dominican Republic Dec. 2008

Universidad Autónoma Santo Domingo North Region

Computer Engineer, Santiago, Dominican Republic Dec. 1993

Pontificia Universidad Católica Madre y Maestra

Major: Computer Engineering

Degree: Bachelor in Computer Science Engineering

Additional Training

Cisco Internetworking Troubleshooting Sept.2006

New Horizon Computer Learning Center

Building Cisco Remote Access Networks Aug.2005

New Horizon Computer Learning Center

Installation and Administration INET Spectra Oct.2004


Portuguese Language Oct.2004

Language Institute of Atlanta.

Building Scalable Cisco Inter networks Jul.2004

New Horizon Computer Learning Center

Building Cisco Multilayer Switched Networks May 2003

New Horizon Computer Learning Center

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