Network Engineer Senior

White Besher

Richardson, TX *****

Phone: 469-***-****

Email: *********@********.***

Employment History

**/****—Present

Senior Network Engineer (ATAC) - Contract role

T-Mobile, Frisco, TX

Resolves and drives complex business customer outage restoration

Escalations path for TFB NOC and Engineering Business Service teams

Service Experts/Automation Development

Ultra-High containment rate (7/24 support)

Engages ATAC peers for prioritized support enabling near real time outage mitigation

Company expert mater in Routing, Switched, and Monitoring Protocols (BGP, OSPF, VRF, HSRP/VRRP, SNMP, Telemetry)

Building/supporting/upgrading datacenter based on customer needs.

Partners /Drives Root cause analysis

Troubleshoot tickets that escalated from Tire 2 and 3.

Support B2B IOT customers like VW, BMW, Mercedes, Chase bank etc.

Partners with Ops readiness and new products to ensure Business Support capabilities prior to go to market

Subject Matter Expert (SME) level support in multiple disciplines for end-to-end production network and solutions design review, validation, testing and operations acceptance for all new or expansion nodes/ platforms or services being introduced into T-Mobile Voice, Data, Messaging and Mobile Internet wireless networks.

Expert in ServiceNow, NetScout, nSA(4G/5G), Splunk, Open Search, IOTCC…etc

Support troubleshooting efforts for d/f customers related to UE, RAN, 4G/5G core (NSSF, SEPP, NEF, SCP & PCF, IMS, voice, data, Messaging domains.)

End-to-End knowledge and troubleshooting on LTE/NSA/SA Core, Edge, RAN, Transport, provisioning on multiple platforms for different customers.

Identify RAN KPIs for monitoring end-user experience, service performance, network health, capacity, and operational efficiency; develop real-time KPI dashboards and perform root cause analysis

Configuration/ Documentation/presentation of the network design.

Upgrade any system/app in the network

Knowledge of DNS/DHCP/HTTP/SSH/ VXLAN

01/2022 - 07/2024

Senior Site Reliability Engineering

JMA, Plano, TX

Designing, implementing, and troubleshooting complex infrastructures both in cloud and on-premises systems

Troubleshot issues related to DHCP, TCP/IP, DNS in Linux based system

Make sure applications are reliable and performing as expected

Create and maintain service-level objectives (SLOS), Service-lavel agreements (SLAs), and Service-lebel indicators (SLIs)

Apply best security measures for both AWS and on-premises based application

Work on tools like Dynatrace, Prometheus, Grafana, AWS CloudWatch, AWS Canary, AWS event bridge

Troubleshooting any Kubernetes issue.

Analyze, debug network equipment configs like Servers, Switch, Router logs

Responsible for Kubernetes Pods, Containers, Cluster, Object, Deployments, Networking, Service, Storage, and security management.

Work closely with cross-functional teams to design, develop, and deploy zero-touch provisioning systems.

Translate white papers/system requirements and specs to test cases in the lab

Provide ongoing support and maintenance for deployed networks

Responsible for test planning and execution of deployed network.

Microservices-based applications management (collection of combined services)

Create/manage VMware and/or Hyper-V servers

Providing support and guidance on networks and maintaining network elements by providing remote assistance.

Managing server processes, cloud containers, writing code and scripts to automate various aspects of the Cloud RAN domain

Conduct design and development work in the areas of new products/ technologies, systems/platform architecture, hardware/software development engineering, technical security.

Troubleshoot issues, handling OS, Networking, databases in a cloud-based environment/on-premises environment and handle live production incidents.

Monitor application performance, take steps to improve overall application performance and stability, and follow through with implementation.

Implement and manage Kubernetes clusters

Troubleshoot and resolve issues related to cloud infrastructure

Create, deploy, maintain and integrate k8s based applications (public cloud.)

Design, deploy, and maintain scalable and secure AWS cloud infrastructure

Company expert in AWS infrastructure like EKS, EC2, ECS, S3… etc.

02/2019 - 12/2021

Senior Platform Engineer

ATT, Plano, TX

Implement observability (logs, metrics, traces) and monitoring of cloud platforms services.

Testing on-prem client solution software suite along with third party devices including: Switch, servers, VMware, Hyper-V…etc.

Design, implement, and maintain robust, scalable, and highly available systems

Experienced with Cisco, Juniper, and or HPE network devices

System Integration activities (Translation of network architecture to network development)

Automation platforms and scripting specifically checking security requirements.

Developing and executing formal test plans to ensure the delivery of quality network applications.

In test planning, writing test cases, test case automation and test execution.

Troubleshooting and debugging any network issues - LAB/Production issues.

IP knowledge i.e. Ability to configure/understand VLAN’s, subnets.

TCP/IP Knowledge (DNS, SMTP, SNMP, DHCP, TCP/IP, UDP, DNS, HTTP, LAN/WAN and SSH)

System engineering activities such as feature requirements identification, feature description documentation, parameter optimization, performance analysis, test strategy creation, problem troubleshooting.

Networking knowledge (e.g., routing, switching, TCP stack) for both metal and cloud (VPC, Security Groups) environments

E2E system verification both in 4G and 5G starting from development > integration > production enviro.

Implementing secure best practices for foundational systems, including secret management, AWS IAM permissions, and key distribution systems

Creation of a baseline server using the golden images

ip configuring all Dell 7xx servers and other brands (Setup of the Interface Ports of the server).

Commissioning network (adjusting and optimizing the network based on the customers need)

Experience with tracing and troubleshooting VoIP sessions at the packet level

Good Unix skills and knowledge of OpenStack and relevant protocols

Monitoring and observability tools (e.g., Statsd, Grafana, Datadog, OpenTelemetry, VictoriaMetrics)

Administration and Support of different AWS services: EC2, RDS, Lambda, AWS API, AWS FTP, S3, VPC, IAM, FSx, EFS, Storage Gateway, Cloudwatch, Cloudformation, CodePipeline, Directory Service, Route53, EKS/ECS, Config, SSM, AWS Firewall, Cognito, AWS Organization.

Container orchestration (e.g., ECS, Kubernetes, Docker)

02/2017 - 01/2019

Observability and Test Engineer

Telcel, Dallas, TX

Log collection and analysis for both cloud and on-premises systems

Monitoring/Tracing/Span with Prometheus any distributed sys.

Update resolutions in artifact repositories for future reference

Secrets Management (OPA gatekeeper, client cert, openID)

Experience in all aspects of infrastructure (compute, Upgrade, Patching, CI/CD, containers, storage, platforms, data, networking, SSL certifications and security)

Kubernetes cluster management using GitOPs; Flux.

Container Build Standards and Automation

Continuous Delivery (CI/CD)

Write documentation as needed

JIRA and Confluence expert

Experience with Multi-Layer Cluster Optimization including 5G/LTE

Analysis of KPIs, investigation and improvement of network quality problems.

Very strong expired on infrastructure as a service (IaaS), Platform as a Service (PaaS) and other native capabilities

Expert in network performance components and troubleshooting.

Work on network performance management functions including trending, analysis, monitoring, reporting, and troubleshooting.

LAN/WAN/IP configuration

Doing health check status of sites, and resolve alarms.

01/2015 - 01/2017

IoT Engineer (4G/5G System Test Engineer)

Movistar Latino, Richardson, TX

Amazon Kinesis Deep Dive

Implementation of AWS Kinesis Data Streams, AWS Data firehose, AWS video streams, AWS Data analytics, AWS lambda, S3, AWS Glue, AWS opensearch, AWS simple queue service, Amazon simple notification service, AWS eventBridge, AWS CloudFront, AWS CloudWatch, AWS Database services (RDS: MySQL, PostgreSQL, MariaDB, Oracle) and DynamoDB (NoSQL) for IoT.

Esperance in: -

AWS IoT core

AWS IOT for LoRaWAN

AWS cloud9

Cloud IOT core

pub/sub messaging service that decouples services produce events and process events.

Google cloud IoT core: configure IoT device, create registry, add device, device manager, MQTT, collecting data, monitor and analyze

Configure Arduino and Raspberry Pi development Boards

IoT programming: Providing instructions to IoT device (input/output/action based on input), programming IoT device with C/C++, Python.

Couple examples of projects I involved in: -

1. Booz Allen Hamilton Lab Technology:

5G NSA, IOTA, B48 - 4x4 & N260 - 2x2, 120MHz Install, configure, test and closeout of the whole system. Loading of the latest release of software in the JMA BBU and EMS for new installations, Programming IP addresses in the JMA BBU per pre approved network diagrams, Verify N2/3 connectivity to a JMA provided Druid 4G/5G core, Building the appropriate gNodeB configuration files per an approved CIQ, Verifying SAS connectivity (Google SAS) for CBRS, Verify connectivity of UE device on the RAN, Connect a single video streaming application both in DL and UL, Test High Speed Data transfer (speed test), Connect a muti-field IoT (No more than 25), Low BW DL and UL requirement

2. Nobu Caesars CBRS Services:

Test and Hospitality Solution Architecture for Modernizing Caesar's Communication Infrastructure Technology: 4G, B48 - 4x4, 120MHz Include Install, configure, test and closeout of the whole system

3. Syracuse university Technology 4G, B48 - 4x4 - 2x2, 40MHz:

Design for resiliency: leverage S1 Flex with Cluster Mapping, Design for scale: ability to add MOCN GW servers for scale out., Ethernet port redundancy mapping to Cisco 9000 switches., Head end MOCN Client side VLAN configuration

4. CISCO Boxborough Technology:

5G SA, B48 - 2x2, 40MHz The objective was. Cisco was interested in 5G SA system running within their existing lab system to be able to perform interoperability testing with the Cisco 5G Core and the JMA XRAN 5G SA RAN on CBRS. There was two identical 4G lab systems running in Boxborough, MA and Santa Clara, CA that was designed for 3x20MHz CBRS 2x2 MIMO on 2 sectors, Cisco requested to add support for 5G SA on n48 to each of the labs, Ideally 5G SA will run concurrently with at least 1x10MHz 4G carrier.

5. TSMC (Tiwan semiconductor at Arizona )

Commotion the whole 5G syste..(107 CHs and 12 gNBs), From the initial to final all the 5G parameters configuration completed by me, it is also band 48 private 5G deployment.

6 different DoD/Government projects: 5G Smart Warehouse Project solution on the Marine Corps Logistics Base Albany, GA

Education History

2020

EE Engineering

Doctorate Degree(Ph.D.)

UTD, Richardson, TX

I got my Ph.D. in Engineering, specializing in Wireless Communication, from the University of Texas at Dallas (UTD).

I am also a awarded a Senior IEEE membership for the researches I have done.

For more detailed you can see some of my publications here :- https://scholar.google.com/citations?user=MWEoRtcAAAAJ&hl=en&authuser=2

Occupational Licenses, Certificates and Training

Certified Kubernetes Administrator (CKA)

Kubernetes and Cloud Native Associate (KCNA)

AWS: AWS Certified Cloud Practitioner

Certified in 4G/5G RAN, Network award, CPI (google SaS)

Protocol

LTE/O-RAN/5G on all Layer 1, 2 &3 (MAC, PHY, TCP/ IP, Diameter, S1AP, RRC, PDCP, RLC, NAS, AMF, NGAP) Zigbee, DNS, SMTP, SNMP, DHCP, TI 15.4, IEEE802.X, Wi-Fi, Bluetooth, 5G(F1, F2,NG, Xn, AMF, SMS… )

Network Tools

Wireshark, IP Scanner, MatLab, XOAS, Viavi, Omnet++, sniffers, spectrum analyzer, NS3, G-Net-Tracker, PuTTY, MobaXterm, SecureCRT, TEMS, MapInfo, ACTi, Nemo, ITK, AMOS, QXDM.

Expert in

O-RAN, XRAN, IOTA, CBRS, CentOS 8.x, BBU (du, UP/cuup, CP/cucp), RRU, Linux, windows, Python, Json, SQL, Java, Switch, Router, servers, Cisco, Juniper

IoT

M2M communication, wireless sensor network communication, MQTT, NFC, Interference avoidance, passive/active RFID, QoS, spectrum management, spectrum analyzers, Link Budgets., LoRa band/ LoRaWAN, Drone (UAV)

Detailed References: Toussaint won, Manager, JMA wireless, ****@***********.***

Some of My Published Research Papers:

(1) Sensor Initiated Healthcare Packet Priority in Congested IoT Networks IEEE Sensors Journal https://ieeexplore.ieee.org/document/9151214 (2) IoT Sensor Initiated Healthcare Data Security IEEE Sensors Journal https://ieeexplore.ieee.org/document/9154453 (3) Prioritizing Health Care Data Traffic in a Congested IoT Cloud Network IEEE Sensors Journal https://ieeexplore.ieee.org/document/9124867 (4) Cognition-based delay analysis to determine the average min time limit for wireless sensor communications IEICE Transactions https://www.jstage.jst.go.jp/article/transinf/E103.D/4/E103.D_2019IIK0001/_article/-char/en

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