1+ months

Principal Member of Technical Staff

Redmond, WA 98073
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We are looking for a highly motivated technical leader with a very strong bias for actions and results to join our dynamic and experienced team. Desired industry specific expertise includes knowledge of 3GPP mobility network architecture, LTE & 5G networks and related call flows and protocols.


**Service Requirements**


This role interfaces with external organizations (e.g. marketing or product realization) to evaluate feasibility and to determine service architecture and impact of new solutions/services to various 4G & 5G Mobility Core Network.


**Detailed Design and Architecture**


This role collaborates with 4G & 5G Mobility Core Network service architects to develop detailed design and architecture for specific projects and ensure end-to-end viability and feasibility of the solution. This role also provides requirements and guidance to suppliers and vendors for feature development and 3GPP compliance that aligns with AT&T strategic roadmap and deployment timelines. Typical deliverables include feature request, plan of record, platform NDR and detailed call flows.


**Deployment, Certification and FFA**


Close collaboration with 4G & 5G Mobility Core Network SMEs and vendor professional services. This role is tactical, hands on and focused to get a project over the finish line. It requires EPC platform knowledge, excellent understanding of the end-to-end solution/service and quite often includes quick analysis and decision making to negotiate the best compromise between project deadlines and issue resolution. Typical responsibilities include:


+ Input/guidance for implementation details

+ Input/guidance for production deployment plans

+ Analysis of issues and direction for resolution (lab and FFA)

+ Hands on platform configuration, NF deployment on network cloud and test execution


**Education and Experience:**

Bachelors degree in technical discipline with 8 years of experience, Masters degree with 6 years of experience or PhD with 4 years of experience.


**Required Qualifications:**


+ Able to demonstrate advanced understanding of 3GPP specifications, with a particular emphasis on 5G Systems and Architecture [Stage 2 (Technical Realization, Procedures and Network Function Services, e.g., TS23.501, 23.502 and 23.503)] and 5G Core Network Signaling Flows, SBA and Data Models [Stage 3 (e.g., TS-29.512, 29.513, 29.514, 29.519, 29.594)].

+ Hands-on experience on 4G & 5G Mobility Core Network including deployments and configuration, testing and troubleshooting, data collection and all other LAB activities.

+ Proficiency in interpreting diameter messaging and forensic analysis of packet captures over Gx, Sp, Rx and Sd using Wireshark is highly desired.

+ Experience with deploying Cloud native applications on Public or Private Cloud.

+ Expertise with Unix/Linux based systems and programming/scripting languages like python, Java and shell scripting.

+ Working experience of UML and call flow modeling tools (e.g., WebSequenceDiagram) is mandatory.

+ Background and hands-on experience with Evolved Packet Core (EPC) network functions is highly desirable as a foundation for new, improved and evolved service implementations in 5GC including PCF interactions with AMF, SMF, CHF, UDR, NEF and trusted AFs.

+ Must possess and demonstrate excellent verbal communication and technical writing skills.


**Desired Qualifications:**


+ Experience with deploying Cloud native applications on Azure and experience with Azure DevOPs tools

+ Experience with deployment and test automation tools like Ansible etc.

+ General knowledge of software development practices.

+ Proficiency in standard Microsoft Office products is expected, while mastery of advanced techniques and Office features is highly beneficial.


AT&T will consider for employment qualified applicants in a manner consistent with the requirements of federal, state and local laws
We expect employees to be honest, trustworthy, and operate with integrity. Discrimination and all unlawful harassment (including sexual harassment) in employment is not tolerated. We encourage success based on our individual merits and abilities without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, disability, marital status, citizenship status, military status, protected veteran status or employment status.
Posted: 2022-05-07 Expires: 2022-07-06
Sponsored by:
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Principal Member of Technical Staff

AT&T
Redmond, WA 98073

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