Larry J. Champlain
Eagle Point,OR
Summary
Client facing Product Development-Operations Integration Engineer with more than 20 years of considerable experience encompassing installation, configuration, manual and automation testing, analysis, and modification/repair of voice and call data networking systems. Primary technical services representative for high revenue, commercial clients. Effective team members with demonstrated capacity to contribute to the successful completion of projects in accord with scheduled deliverables. Proficient working within a lab environment to define and execute test plans in facilitation of customer requirements. Personally established standards of quality as a professional possessing advanced technical and analytical skills. Committed to cultivating knowledge of emerging industry trends and technology. Dynamic individual with hands-on experience in voice engineering and talent for navigating challenges. Brings strong problem-solving skills and proactive approach to new tasks. Known for adaptability, creativity, and results-oriented mindset. Committed to making meaningful contributions and advancing organizational goals. Experienced with voice network architecture, ensuring seamless communication solutions. Utilizes advanced troubleshooting techniques and system optimization to enhance performance. Knowledge of integrating various voice systems and maintaining robust network reliability. Knowledgeable voice engineer with robust background in voice network architecture and system integration. Proven track record of designing and implementing efficient voice communication solutions. Demonstrated expertise in troubleshooting network issues and optimizing system performance.
Overview
19
19
years of professional experience
13
13
Certification
1
1
year of post-secondary education
Work History
Sinor tier 3 Voice engineer (Remote)
Manhattan telecom
06.2022 - 12.2024
- Solid knowledge of VoIP protocols such as SIP, H323, MGCP, RTP, Codecs knowledge and troubleshooting experience
- Work with Hosted Voice environments (BroadSoft Preferred), Session Border Controller experience for Access and SIP Trunking
- Knowledge of Legacy E9-1-1 and NG9-1-1 technologies and standards such as NENIA i3
- Knowledge of Kari's Law and RAY BAUM's act
- Experience with Avaya, Cisco, Oracle, BroadSoft, Microsoft suite of telephony and UC products, Polycom, ADTRAN and IADs.
- In-depth knowledge of IPv4 & IPv6 network technologies such as IP addressing (CIDR, VLSM), ARP, IP routing, etc
- Layer-2 network technologies including 802.1q VLAN tagging
- Experience with scripting and test automation highly preferred
- Experience designing and deploying carrier SIP solutions
- Experience with private, public and hybrid clouds preferred
- Manage end-to-end Voice and Collaboration infrastructure delivery lifecycle including the collection and translation of business requirements to enable technical execution of network programs and projects
- Experience working with vendors providing VoIP network components to the company
- This includes staying abreast of new VoIP components or new features on existing VoIP network that could benefit existing or future customers
- Interact with various inter and intra departmental peer groups to cooperatively achieve best results in all assigned tasks
- Experience with VoIP security platforms, Robocalls mitigation, STIR/SHAKEN, VoIP troubleshooting Tools
- Experience working with LCR (Least Cost Routing) and carrier rate decks
- Voice Traffic & Translation experience, full understanding on LERG updates and deployments
- Good knowledge of Networking; TCP/IP, SFTP, DHCP, LAN, WAN, MPLS, Cisco Routers, Switches/Firewalls
- Have knowledge/experience on VMware, Amazon Cloud Connect, Cloud based call center, MS SQL
- Provided Tier 1-2 technical support for enterprise customer network, including troubleshooting voice, video and data (IP) traffic
SENIOR PRODUCT DEVELOPMENT ENGINEER (Remote)
Windstream Communications
01.2013 - 01.2023
- Install, configure, and deploy Cisco routers, switches, ASA firewalls and Access Points
- Provide SIP Certification for customer devices
- Configure voice gateways, switches, routers, fire walls and PBXs for SIP operation
- Implement test plans to integrate new CPEs with existing class 5 Softswitch & hosted IP-PBX solution
- Manage software releases and upgrades on Cisco/Juniper devices and Linux platforms
- Provide technical support and troubleshooting for VoIP systems and related network issues
- Maintain up-to-date documentation of network configurations and procedures
- Collaborate with engineering teams to develop and improve VoIP infrastructure and service offerings
- Conduct functionality and load testing of new ‘SILHOUETTE’ (cloud based hosted IP-PBX system) software releases, using both SIP and MINET protocols
- Troubleshoot Mitel phones connected both locally and remotely using Mitel Border Gateway
- Consult with potential clients/providers to configure, test and troubleshoot SIP trunks through SBC
- Collaborate with hosted IP-PBX developers to resolve field issues by recreating customer environment in the lab
- Develop SIP call scenarios using SIPP for performance testing
- Test, evaluate, set up, install, configure, and customize VMWare VDI virtualization environment
- Provide support for VMWare virtualization of Windows and Linux
- Design, document, implement, and provide operational support for operating system software upgrades, operating system patch testing and deployment, and application migration to new virtualization platforms
- Test and performance monitoring of migrated virtualized servers for resource usage and efficiency in design of new infrastructure
- Apply industry best practices on VMWare and 3rd party integration
- Security administration and configuration, including mechanisms and methods to secure servers to meet stringent security requirements, reducing exposure to unauthorized access or exploitation
- Research, configure and apply appropriate security patches, and disable services as needed to secure VMWare environments
- Design, configure and support Cisco UCS system upgrades
- Plan, design, and troubleshoot Cisco and Juniper network routers and switches, wirelessly and within LAN
- Configure networks on Cisco and Juniper routers using OSPF, BGP and ISIS
- Maintain, upgrade, and troubleshooting existing infrastructure equipment and configurations
- Provide ongoing support to remote field technicians
- Monitor and analyze protocol communication to determine IT security best practices
- Create and utilize network design documents and presentations (PowerPoint and Visio) for distribution to leadership
- Use working knowledge of IP networking concepts (NAT, TCP/IP, SIP, VOIP, Multicast.) and TELCO technologies (T-1, T-3, MPLS, Frame-relay, ISDN, Pri/Bri) to set up and troubleshoot user issues
- Troubleshoot Layer 2 switching technologies (STP, VLANs, VTP, trunking.) and wireless Networking 802.11x
- Configure and install wireless AP's and routers, including security and encryption design and setup for WEP, WPA, WPA2, MAC ID filtering
- Conduct site surveys to ensure proper, secure, and optimized signal usage for indoor/outdoor WLAN Installation
- Provide DNS/DHCP and IP address management
- Use knowledge of silhouette, MBG and SBC, Asterisk PBX, Wireshark, and Packet tracing SIP to mitigate any variance risk within company and client system installation and configuration
- Configure and maintain Meta Switch
- Provided product and feature evaluation and recommendation of customer’s products
- Develop Requirement Traceability Matrix, test plan and test cases using comprehensive understanding of product and client requirements
- Install and test SD-WAN, Nobelic, Cisco Wi-Fi routers and cameras
- Drove successful product launches by coordinating closely with marketing teams to develop targeted messaging and promotional materials.
- Tested completed projects for functionality and implemented changes to production methods to rectify issues in final products.
- Communicated with vendors and key suppliers to select project materials and meet customer needs.
- Documented and developed engineering procedures and processes.
SENIOR TEST ENGINEER III
Comcast Cable Enterprise Technology
01.2008 - 01.2013
- Evaluate new CCP hardware and software novel projects on existing CET infrastructure prior to deployment to a production environment
- Examine XML logs and Java errors within numerous systems and devices to troubleshoot tests and defects, followed up with documentation and escalation of testing results and associated defects with developers and engineers
- Collaborate with Product and Development teams to identify technical requirements to determination of appropriate Products
- Review and verify requirements and design specifications for validity in overall product design, with an emphasis towards product testability, verification, and usability
- Configure and troubleshoot set top boxes running on a UNIX based operating system
- Prepare and update test plans, testing scripts, and related documentation for each testing iteration
- Expertise within billing systems, order management systems, ESP services, NPS, TPP, IMS/CMS, APS and PS provisioning flows (Parker, X11, and RNG150);
- Provide expertise across functional, integration, smoke, regression, and end-to-end testing
- Install, configure, and administer Cisco, Pace, Broadcom and Motorola equipment, and DAC, DNCS and CMTS
- Provide analysis of tools and test equipment for digital and analog RF signals
- Deliver expertise of Linux, UNIX and Windows operating systems, Cisco networking products and IOS
- Troubleshoot and maintain equipment related to coaxial and fiber environment
- Responsible as QA Test Engineer for testing Comcast provisioning system software releases for voice over IP (CDV) and high-speed data services
- Review requirement documentation, prepare test plans, and write manual test scripts
- Execute functional and regression manual test cases, utilizing simulation techniques: Unix to access back-end servers, writing/using SQL statements to obtain specific or expected values from databases, using LDAP commands to obtain values from global directory system
- SME (Subject Matter Expert) for identification of issues/bugs, providing simulation by adding users and profiles, getting reports through the dashboard, and creating defects using HP Quality Center (previously used Relational Clear Quest
- Collaborated with developers to investigate defects investigation and provide resolution
- Generated daily defects log report for dissemination to stakeholders
- Identify methods to increase testing efficiency without sacrificing quality of results to meet deliverable schedule
- Organize and lead daily defects call with development teams
- Prepare and lead defects review calls with business owners prior to each test cycle completion
- Operate with the automation team as SME (Subject Matter Expert) in providing system level understanding of end-to-end provisioning system
- Function as an Automation Engineer to automate regression test suite using HP Quick Test Pro, Vbscripting, automated scripts validation, and script development to facilitate testing efforts
- Create automated framework for GUI interface, BaccTools, Symphony, NPS, CSG, DST billing
- Maintain project databases using Oracle ensuring accuracy of information and providing automation of numerous functions
- Analysis and optimization of MS SQL Server production databases
- Completed regression tests of new software builds to assess performance and success of bug fixes.
- Reproduced defects and documented findings.
- Contributed to the development of in-house testing tools and frameworks, enhancing overall testing capabilities and productivity.
SS7 ENGINEER
Adax, Inc.
01.2006 - 01.2008
- Provide expertise in SS7 Network Architecture, including STP, SCP, SSP, SN, IP nodes, and signaling network related protocols and standards – Camel, ISUP, TCAP, SCCP, M3UA, M2PA, M2UA, MTP3, MTP2, MAP, INAP, SCTP TDMA, CDMA, GSM
- Perform software debugging on the Adax gateway
- Implement testing and configuration of Adax gateways using all SS7 protocols
- Complete testing of M2ua and M3ua and all other related protocols
- Perform testing using MTP3 and MTP2
- Execute testing of SCCP routing using GTT rules
- Provide implementation of self-written and debugged shell scripts
- Enhanced product performance by conducting thorough failure analysis and recommending improvements.
- Documented and developed engineering procedures and processes.
- Conducted research to identify and evaluate new technologies and concepts.
Education
AAS - Computer Science
Middlesex County College
Edison, NJ 09.2001 - 09.2002
Skills
- Network troubleshooting
- Telecom billing systems
- Unified communications
- Network design
- Call routing
- Video conferencing
- Hosted voice services
- Voicemail systems
- PBX administration
- SIP trunking
- Contact center solutions
- Telephony security
- Softphone configuration
- VoIP protocols
- Session border controllers
- Cloud-based telephony
- Call recording
- Real-time transport protocol
- VoIP monitoring tools
- Audio codecs
- Voice gateways
- Telecom engineering
- QoS optimization
- Voice over IP expertise
- IVR development
- Customer support
- Switches and routers
- Network monitoring
- Teamwork
- Teamwork and collaboration
- Customer service
- Problem-solving
- Time management
- Attention to detail
- Problem-solving abilities
- Multitasking
- Multitasking Abilities
- Reliability
- Excellent communication
- Organizational skills
- Team collaboration
- Team leadership
- Active listening
- Effective communication
- Decision-making
- Adaptability and flexibility
- Relationship building
- Field installation
- Team building
- Self motivation
- Equipment installation and maintenance
- Network configuration
- Technical troubleshooting
- Interpersonal skills
- Analytical thinking
- Goal setting
- Risk assessment
- Professionalism
- Device configuration
- Preventive maintenance management
- Preventive Maintenance
- Continuous improvement
- Adaptability
- System testing
- Quality assurance
- Troubleshooting
- Data analysis
- Equipment maintenance
- User support
- Equipment installation
- System architecture
- Performance evaluation
- Network protocols
- Performance testing
- VoIP systems
- Routine Inspections
- Technical documentation
Interactive voice response
Certification
Voice Over IP, NOC Training, Fiber Optics, BNC connectors, PCS 1900, Advanced BSS, Cisco CCNA, CCNP, SS7 Network Operations and Maintenance, RFS Cable wave, DMS Super node Systems Maintenance, DMS Translations, DMS Super node Advanced Hardware, DMS Super node line using servrod, DMS Hardware Architecture, Lucent 5ess switch training, DMS Super node enhanced network (ENET) Hardware, Advanced QTP professional.
Timeline
Sinor tier 3 Voice engineer (Remote)
Manhattan telecom
06.2022 - 12.2024
SENIOR PRODUCT DEVELOPMENT ENGINEER (Remote)
Windstream Communications
01.2013 - 01.2023
SENIOR TEST ENGINEER III
Comcast Cable Enterprise Technology
01.2008 - 01.2013
SS7 ENGINEER
Adax, Inc.
01.2006 - 01.2008
AAS - Computer Science
Middlesex County College
09.2001 - 09.2002
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