David Quiñones Email & Phone Number

Southlake, Texas, Us

Providing end-to-end eCommerce solutions with experience across multiple platforms ranging from F5 load balancers, routers & switches and ASA, SRX & Palo Alto firewalls. Imperva Security administrator. Onboarding new websites and daily administration of websites.SSL Certificate Certificate Authority and product manager. Role includes engineering and integration of GlobalSign and Servicenow applications. Managing daily operations of SSl certificates, Vetting and DNS.ThousandEyes administrator for monitoring traffic and health of Sabre internet applications.Responsible for vendor implementation of architectural solutions. Application support of infrastructure, hardware, hosting services and network technologies. Analyze system requirements and ensure that delivered systems will offer appropriate configuration, security controls and will be effectively integrated with current applications. Solid knowledge of enterprise infrastructure including mainframe, mid-range, database, middle-ware, and network. Experience managing high performing teams comprised of systems engineers, Vendors, Cloud and data center engineers.

Southlake, Texas, Us

Responsible for assisting in the development, implementation, and management of security tools and services to support detection, prevention, and response of cyber security risks and threats; as well as collaborating with architecture, engineering, operations, and other business units to ensure continuous monitoring and protection of all Sabre assets.

Global, Us

• Provide operational global network support to DHS, TSA, FAMS, US Embassy's and an escalation point to my peers.• Track issues through ticketing system, call out circuits to carriers and perform follow-ups.• Manage tickets to ensure issues are recorded, tracked, resolved, and follow-ups completed within SLA.• Provide configurations, troubleshooting and best practices to customers.• Troubleshoot network issues, provide fault isolation and root cause analysis for complex technical issues.• Manage applications, device availability and network stability.• Provide F5 BigIP load balancing support of TSA applications.

New York, New York, Us

Responsibilities:- Provide TierII support for Citi's global network operations with a focus on network infrastructure. Fast pace support of over 45,000 Cisco nodes, 20,000 firewalls and 35,000 data circuits across 103 countries.Hands on support for inter-networking technology solutions such as:• Load Balancing (F5 and Citrix)• Juniper Routers, SRX, MX960• WAN Accelerators (Riverbed)• VoIP Appliances (Avaya and Cisco)• WiFi/Wireless communications support (Cisco)• Support of other small pockets of both new and legacy inter-networking technologies• Perform hardware and software upgrades for networking devices as needed for implementation• Edit/maintain scripts and templates for network implementation tasks • Responsible for execution of network changes on internal and customer facing network (routing and switching) infrastructure and application (firewall and load balancing) devices. • Work directly with CBNA, CFNA, and third party customers to validate, confirm and assess their application connectivity requirements after change execution.•Configured Core Juniper MX960 and Cisco Layer 2 & 3 protocols OSPF/BGP/MPLS/IPSEC/HSRP, Netflow and IP accounting.•Configuration of Wireless and Ad-Hoc Networks, IEEE 802.1x, IEEE 802.11x, Private and Guest networks.•Performed all Break/Fix hardware replacements of routers and switches, data circuits at Datacenters, branches and vendors globally.•Performed all hardware upgrades & replacements: Riverbed, F5, Juniper, Arista switches and Cisco, Chassis/cards/power supplies, Cisco WLC, access points and configurations pushes.•Provide Checkpoint, Palo Alto and Juniper Firewall hardware support; isolate from network, disabling interfaces and routing for hardware replacement.•Upload/download configurations through HPNA system.• Track issues through ticketing system, call out circuits to carriers and perform follow-ups.• Provide operational hardware support on Checkpoint, Juniper, Palo Alto firewalls.

Falls Church, Va, Us

Enterprise network support for Triumph Aerostructures/Vought Aircraft Division.- Provided implementation, configuration, monitoring and troubleshooting activities for network hardware and management platforms.- Resolve highly complex networking issues over multiple hardware and software environments in an expedient manner.- Coordinated and performed network router, switch, and wireless access point installs, adds, moves, and changes in accordance with user timing and needs and to minimize impact on users resulting from maintenance activities.- Conducted wireless security assessments- Conducted social engineering assessments- Familiarity with penetration testing tools such as BackTrack, Nessus, nmap, MetaSpolit, vulnerability scanning tools, tcpdump, wireshark, Netstumbler, Nikto, etc.​- Recommended and implemented improvements to the existing architecture of the network that will improve network reliability and data throughput. - Provided network engineering, design and project implementation guidance and support. This includes Enterprise, corporate, and partner networks. - Produce reports and documentation on the existing network configuration as required.- Rapidly established a good working relationship with customers and other professionals- Tested and evaluated new network technologies such as Fluke, SolarWinds and Manage Engine.- Participated in 7x24x365 on-call operations for network infrastructure.

Dallas-Fort Worth, Texas, Us

Primary Responsibilities: -Provided day to day support of AA WLAN -Designs, implemention and troubleshoot wireless network infrastructure to meet internal customer's needs. -Conducted wireless site surveys and made recommendations based on survey results. -Troubleshoot wireless networks by using a variety of test tools. -Utilize wireless protocols and frequencies in the field -Configure wireless infrastructure hardware and software -Researches wireless based technology and trains on current materials -Responsible for project documentation and deliverables -Provide Tier 3 support for wireless technicians and internal customers. -Supporting installation, maintenance, enhancements and configuration of wireless infrastructure in support of Netmotion mobility solutions utilized in the American Airlines environment. -Support the introduction of new software releases for wireless network elements such as data cards, wireless phone upgrades, etc. -Worked with Operations and Engineering on the priority of issues in order to resolve customer impacting issues and providing on call after hours network support. -Assist with the creation and implementation of documentation and procedures to support operation of the network. -Troubleshooting, tracking, and resolution of day-to-day wireless device and network issues related to projects. -Open and close service requests, as well as manage the classification, assignment, tracking, and completion of requests.-Interaction with hardware vendors and industry partners.

Basking Ridge, Nj, Us

Perform network interoperability and test of MPLS L2 end to end switching fom CE to PE. Test infrastructure and traffic functionality of EVPLS, RSVP, SONET, OSPF, rate limiting, policing, VLAN tagging, swapping, and stacking. Configuration and testing of Cisco GSR, Juniper MX/M & T series and Tellabs 8860 switch.

Alpharetta, Ga, Us

Front Office Support PPAS network.

Kista, Stockholm, Se

Back Office support of Mobility services including GSM, GPRS, UMTS, and HSPA. Strong knowledge of both GSM network architecture and operational support of mobility networks including RAN, Backhaul, provisioning, Roaming, billing, OSS systems.

Boston, Ma, Us

Southlake, Texas, Us

Support travel agency network infrastructure technologies; Frame relay, novell netware, Windows and remote access.