SchaumburgRecruiter Since 2001
the smart solution for Schaumburg jobs

Sr Core Services Engineer

Company: U.S. Cellular
Location: Schaumburg
Posted on: May 19, 2023

Job Description:

Sr Core Services Engineer - ENG002074

A Senior Core Services Engineer leads the design, integration, engineering, and troubleshooting of infrastructure technologies within the customer-servicing network, including: Enhanced Packet Core (EPC) LTE, IP Multimedia Subsystem (IMS) VOLTE and all flavors of DNS Services. This role serves as a Subject Matter Expert, who has responsibility of implementing the infrastructure technologies within the USCC customer-servicing network. This role is responsible for overseeing the integration of technologies ensuring operational readiness by creating and contributing to the Low-Level Design. This role reviews architectural principles and high-level design of the network platforms.

  • Serve as one of the company's leading experts on LTE, VoLTE, IMS, and RCS. Support industry advancements in technology and standards applying them into USCC network environment.
  • Provide an overarching engineering vision, comprehending architecture, High level design to support network deployment planning.
  • Interfaces with the vendors' senior technical staff on critical/escalated network and system and performance/capacity related impairments.
  • Ensure CIQs, RFPs and technical discussions are complete and accurate for the deployment of new applications or technologies.
  • Define and support system requirements making recommendations to improve network performance and capacity as well as reducing costs.
  • Actively mentors other engineering staff, effectively demonstrate ability to work in a team environment to resolve issues. Develop and deliver cross-training activities, participates in a knowledge sharing environment
  • Design, support, develop and review configuration management to network elements assessing system infrastructure impacts.
  • Defines changes and testing requirements providing guidance in the implementation of Network Elements into an existing network and for Lab verification.
  • Serve as a subject matter expert on tools to perform, troubleshoot, and decode packet captures of data sessions and IP-based call flows.
  • Leads interactions with partner organizations and departments to ensure proposed solutions meet architectural and engineering requirements based on industry best-practices. Creates and/or peer review "Method of Procedure" documents for new engineering changes.
  • Drive the development of analytics and automations that improve effectiveness, reliability and shorten deployment cycles of new services.

    • Bachelor's degree in related discipline and minimum 5 years experience; or equivalent work or military experience
    • Strong knowledge of IETF, GSMA and 3GPP standards
    • Deep understanding of EPC LTE, IMS/VOLTE call flows and Diameter/SIP protocols.
    • Experience in re-engineering / process improvement to automate tasks for operational purposes
    • Excellent problem solving / analytical skills and knowledge of analytical tools
    • Excellent written and verbal communication skills.
    • Excellent presentation skills demonstrated in front of large audiences.
    • Ability to create / define metrics that accurately reflect the current state of a given process or operation
    • Travel required
    • Technical knowledge of all of the skills listed below:
    • Software tool: SQL Plus, Perl, K Shell, C Shell, Bash, Tcpdump, Snoop, Ethereal,
    • Services: VoLTE/IMS/RCS, EPC DNS, 1XRTT/EVDO, SDN/NFV, Capacity Management, IMS Call Session Control Function, Post Paid and Prepaid charging platforms. Voice Switching platforms, OTA, WPS, VVM, CALEA, Voicemail, IPVM, 3G/4G/5G data, VoLTE enablement
    • Service Infrastructure: Mobility Management Entity (MME), eNBs, Home Subscriber Service (HSS), Packet Gateway (PGW), Signaling Gateway (SGW), Prepaid Platforms, IMS/RCS with focus on Telephone Application Server (TAS), Media Gateways and Controllers, PCRF, ALU and Ericsson switching platforms.
    • Hardware: UNIX Servers (HP, IBM, Sun), Tandem, x86, Cisco, Nokia, Ericsson
    • Cloud/VNF: Openstack, Kubernetes, Docker
    • O/S & Network: HP/UX, Windows 2000/XP, TCP/IP, Routers, Switches, Firewalls, Linux, BSD, IOS
    • Network Protocols: IS41(WIN Triggers), SS7, TCP/IP, SNMP, SMTP, UDP, Radius, PPP, Diameter, HTTP, HTTP2, JSON, GTPv2, SIP(H.323), H.248(MGECO), DHCP, DNS (BIND), QoS, Jitter, 3GPPP interfaces and LTE TS specifications
    • Business Applications: SMART Trouble Ticketing
    • Office Automation: Word, Excel, Outlook, PowerPoint, MS Teams, WebEx
    • Planning & Design: Microsoft Project, Visio


      • Masters Degree.

        JOB : Engineering

        UScellular is an EEO employer and gives consideration to qualified applicants without regard to race/color/age/religion/sex/sexual orientation/gender identity/national origin/disability/veteran status, pregnancy or genetic information.

Keywords: U.S. Cellular, Schaumburg , Sr Core Services Engineer, Engineering , Schaumburg, Illinois

Click here to apply!

Didn't find what you're looking for? Search again!

I'm looking for
in category

Log In or Create An Account

Get the latest Illinois jobs by following @recnetIL on Twitter!

Schaumburg RSS job feeds