Technical Support Hands-On
Resume:
Sarfraz Haq
Quincy, MA
US Citizen
************@*****.***
Summary:
Extensive experience in QA testing and system validation with 20+ years of hands-on expertise in both hardware and software testing, specializing in ensuring product reliability and performance across various platforms and environments.
Experience in converting requirements into test design, test cases and test execution for the product’s new features.
Experience in development and implementation of comprehensive and integrated testing plans.
Strong technical background in design verification, troubleshooting, and providing technical support for complex systems, ensuring the delivery of high-quality solutions.
Specialized knowledge of DOCSIS and broadband services with experience working on the latest Wi-Fi technologies, contributing to the development and validation of telecommunications solutions.
Comprehensive experience in telco and enterprise solutions, having played a pivotal role in the testing, design, and validation of complex systems, including:
Soft Switch Media Gateway – Validated and tested soft switches, focusing on communication reliability and system integrity.
Intelligent Gateway and Radio Base Stations (RBS) – Ensured seamless integration and functionality of gateways and RBS units in telecommunications networks.
Push-to-Talk Over Cellular (PoC) – Conducted extensive testing of PoC systems to verify push-to-talk services for seamless communication.
IMS (IP Multimedia Subsystem), Ericsson CCF, and OSS-RC – Tested and validated telecom core network components, including IP multimedia subsystems and configuration control functions.
Call Recording Platforms and Web Servers – Managed installation, configuration, and testing of call recording solutions and web servers for optimized performance.
Hands-on experience in virtualization and cloud environments, including virtual machine deployment and working with OpenStack to manage cloud infrastructure, ensuring efficient resource utilization and performance.
Advanced Cisco networking skills gained through years of experience, with expertise in:
Installation, configuration, maintenance, and troubleshooting of Layer 2 & 3 switches, routers, and firewalls in complex networking environments.
Assisting in the configuration of Cisco routers and switches, optimizing network performance and addressing technical issues.
Designing network topologies incorporating VLANs, EtherChannel, and spanning tree protocols for improved network segmentation and redundancy.
Configuring and troubleshooting routing protocols such as RIP, OSPF, EIGRP, BGP, and ISIS to ensure reliable network performance and connectivity.
Troubleshooting network and protocol issues to quickly identify root causes and restore network services, reducing downtime.
Professional Experience:
NTAI Consulting September 2022 - Present
Network Engineer - Intern
Provided network consulting services to clients in the Boston Metropolitan Area, ensuring high-quality solutions under pressure.
Efficiently troubleshot and maintained network equipment across multiple client sites.
Designed network topologies using Cisco Packet Tracer and GNS3 to meet specific client requirements.
Developed training materials and conducted on-site support sessions for client staff.
Collaborated with clients to select appropriate hardware and software solutions, optimizing network performance. Implemented and administered network infrastructure devices, ensuring optimal functionality.
Created accurate network diagrams and documentation for effective communication system planning.
Managed and maintained a range of networking equipment, including:
Routers: Cisco ISR 800 series, 900 series, & 1000 series (Protocols: OSPF, EIGRP, and RIP).
Switches: Cisco Catalyst 3000 series, 4000 series, & 6500 series (Protocols: EtherChannel, 802.1Q, VLANs, VTP, DTP, STP, RSTP, etc.).
LAN/WAN Protocols: TCP/IP, VPN, GRE Tunneling, IPsec, PPP, DHCP, DNS, FTP, TFTP, ACLs.
Applications: Microsoft Office Suite, Norton Antivirus, Cisco Webex, and Zoom. Performed Router and Switch IOS Backup and Recovery. Proficient in Windows Operating Systems (OS), Antivirus Software, and VPNs.
Syntronic
Client: Amazon Robotics February 2022 – July 2022
Location: North Reading, Massachusetts (Contract)
Role: SQA Engineer
Developed and executed comprehensive test cases to ensure the reliability and functionality of Amazon Robotics systems.
Utilized Jama for creating and managing test cycles, and Jira for tracking issues and tickets.
Recovered robotic drive units experiencing issues or failures during day and overnight test runs, ensuring operational efficiency.
Conducted thorough testing of robotic drive movement and package sortation to validate system accuracy and performance.
Reported bugs, verified fixes, and collaborated with teams to ensure timely issue resolution.
Genesis Networks Global Service
Client: AT&T – Middletown, New Jersey September 2013 – March 2018
Role: Design Validation Engineer (Contract)
Project: Enhanced Push to Talk (EPTT)
Designed, developed, and maintained test cases for mobile devices, including iOS and Android platforms.
Conducted testing and validation of Push to Talk applications on a variety of mobile phones (iPhone, iPad/iPod, Samsung, Motorola, Sonim).
Performed manual testing on mobile devices and logged bugs in QC; proficient in quality/bug tracking systems like Quality Center and TMATS.
Managed vendors, including prioritization and scheduling of bug fixes and software upgrades, and collaborated on vendor documentation.
Utilized troubleshooting skills with protocol analysis tools such as Tektronix IRIS and Wireshark for EPTT systems at the AT&T CPE Device Certification Lab.
Analyzed SIP messages using Wireshark, collecting traces for various VoLTE scenarios in both lab and production environments.
Validated VoLTE handover between LTE and Wi-Fi for in-call (voice/video) and idle mode scenarios.
Tested Wi-Fi products and protocols across different routers and environments. QoS (Quality of Service)
IoT Integration, Wi-Fi (802.11ax/be), WPA/WPA2/WPA3.
Conducted triage and troubleshooting during regression and sanity testing of new VoLTE features, including End-to-End VoLTE call flow analysis.
Coordinated test planning and execution of System Validation Testing (SVT) in lab settings, testing and validating SIP/RTP call flows using Wireshark and IRIS from Tektronix.
Validated design and functionality of Ericsson Charging Collector Function (CCF) and Operations Support System-Radio and Core (OSS-RC).
Tested Ericsson CCF alarms, multi-mediation charging collector via Rf/Diameter, and call detail records for HC Sessions using vSBG and Broadsoft Application Server (BS-AS).
Developed and executed hardware and software tests for Ericsson CCF and OSS-RC systems.
Project: Mobile Call Recording (MCR)
Conducted functional testing of mobile call recording applications within the AT&T Integrated Cloud (OpenStack environment).
Managed VM creation and snapshots of virtualized components using Horizon Dashboard GUI in an OpenStack cloud environment.
Participated in design validation of Mobile Call Recording systems, verifying calls and recordings, and executing tests for performance and load.
Contributed to AT&T’s Cloud-based Domain 2.0 Network Virtualization initiative (SDN + NFV).
Project: Collaborate Call Recording
Developed and executed test plans, entered defects, and verified fixes on the Call Recording Platform (Dubber).
Performed integration and regression testing and troubleshooting by analyzing SIP messages using IRIS and Wireshark.
The Select Group - NC
Client: Tekelec – Morrisville, North Carolina August 2012 – July 2013
Role: Professional Services Engineer (PSE) (Contract)
Installed and configured Tekelec Diameter Signaling Router (DSR), providing both on-site and remote support to customers.
Conducted installation and configuration of HP Rack Mount DL 360, DL 380, and BL460c Blade servers, ensuring optimal system performance.
Managed the setup, configuration, and testing of HP c-Class systems and HP Onboard Administrator for seamless server administration.
Installed and configured Cisco switches including 3020, 6120XG, and 4948E rack-mount network switches, ensuring network reliability and performance.
Travelled to various customer sites for DSR installation and configuration, delivering high-quality service and support.
Provided hands-on training and assessment to customers on installation, configuration, upgrade, and backout procedures, ensuring they were fully equipped to manage systems post-deployment.
Motorola Inc – Lowell, MA November 2005 – December 2011
Role: Senior Engineer NPI (Full-Time)
Supported installation, integration, and acceptance testing for the Motorola Push to Talk (MPTT) platform, managing ongoing modifications and configuration changes.
Installed, configured, and tested Push to Talk Over Cellular (PoC) platforms and web servers running on Linux (RedHat) both in-house and at customer sites.
Conducted testing for VoLTE CDMA services in lab and FOA production environments, ensuring smooth rollouts and successful deployments.
Provided diagnostic troubleshooting and remote technical support for various system issues, delivering timely solutions to clients.
Developed comprehensive service documentation, procedures, and MOPs (Method of Procedures) for new software releases, ensuring seamless integration for customers.
Reported and prioritized software and hardware issues, collaborating with teams to ensure quick resolution.
Actively participated in PoC projects for international clients including Verizon USA, OPTIMUS Portugal, and TELCEL Mexico, travelling to customer sites for FOA.
Configured and tested DotHill SanNet II RAID, and developed and executed test plans for IMS features including billing, voicemail, conferencing, and call features.
Cedar Point Communications – Derry, NH August 2004 – November 2005
Role: Senior Systems Test Engineer (Full-Time)
Cedar Point Communications pioneered the development of the integrated Cable Media Switching System (CMSS).
Performed interoperability and validation testing of the Class 5 Switch (Safari), ensuring seamless integration with various telecom networks.
Conducted comprehensive testing of VoIP, system performance, DOCSIS, Euro DOCSIS, MGCP, SIP, SS7, MTA, and CMTS interoperability to guarantee network compatibility and efficiency.
Worked on Packet Cable networks using IP technology to build a robust multimedia architecture for high-speed data and voice services.
Acted as a CPE tester, focusing on Motorola’s Multimedia Terminal Adapter (MTA) family for DOCSIS® and PacketCable® compliance, ensuring superior performance for high-speed data and VoIP services using dynamic QoS and SIP protocols.
Ensured interoperability of Motorola BSR64000 CMTS, Arris, and Scientific Atlanta MTAs with Cedar Point Communications’ Class 5 CMSS, a cutting-edge voice switching solution designed to be PacketCable™ compliant.
Conducted load testing using tools like Hammer (Load Blaster) and SoftMta, along with redundancy testing to ensure reliability during high traffic loads.
Siemens Networks Convergence LLC – Chelmsford, MA April 2000 – March 2003
Role: Senior Member of Technical Staff (Full-Time)
Worked as a System Test Engineer, responsible for creating and executing comprehensive product test plans.
Developed and executed test procedures for hiQ8000 (Soft Switch), Media Gateway (MG), and Intelligent Gateway (IG), including system installation, configuration, power, thermal, networking, redundancy, clock, and loopback testing.
Created and executed SS7 ISUP test plans, reporting bugs and ensuring robust communication protocol performance.
Conducted testing for Voice and Data Network Management GUI (NMC) for VoIP, SS7, and Media Gateway Control Protocol (MGCP) data connections, ensuring seamless integration.
Developed and executed Faults/Alarm test cases based on design specifications, using protocol analyzer Etherpeak to verify SNMP traps.
Performed load testing using Ameritec Crescendo, ensuring system reliability under high traffic conditions.
Boston Communications Group – Woburn, MA July 1999 – April 2000
Role: Software Quality Assurance Engineer (Full-Time)
Tested applications on Windows NT platforms using Oracle Database, ensuring robust software performance.
Utilized Hammer to run tests for prepaid cellular phone cards, including load testing for quality assurance.
Executed tests and load testing using Ameritec Crescendo to validate system reliability under heavy usage.
Comverse Network Systems – Wakefield, MA July 1996 – June 1999
Role: Software Quality Assurance Engineer, R&D (Full-Time)
Developed and executed test cases for enhanced service applications and system administration deliverables on UNIX platforms.
Installed, configured, and tested Voice Mail Systems for international customers, performing Customer Acceptance Tests (CAT) on-site.
Conducted testing at Telecom Asia Thailand and Paktel Pakistan, ensuring successful system installation and configuration for customer acceptance.
Worked at Sprint Labs USA, performing in-house and on-site platform testing to validate system performance.
Designed and executed administration and platform test cases for DDI/IDO Japan, ensuring compliance with customer requirements.
Education
Bachelor of Science (BS) in Electronics Engineering
Suffolk University, Boston, MA
Associate of Science (AS) in Computer Science
Quincy College, Quincy, MA
Certifications & Training
NTAI Network Engineering Program (CCNA) – Malden, MA
Telecommunications Systems Technology Certificate – Northeastern University, Boston, MA
Computer Telecommunications – University of Massachusetts, Lowell, MA
Completed Unix Training – Comverse Networks Systems
Red Hat Linux Training:
oRH033: Introduction to Red Hat Linux
oRH133: Red Hat Linux System Administration
Novell LAN C.N.E. Certification Program – Boston University, Boston, MA
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