Sr Specialist System Engineering

Job Description:

Responsibilities 

• Develop technical expertise with 3GPP 5G SA SMF/UPF and LTE/NSA SGW/PGW and actively drive our 24x7 lab certification objective.
• Participate in Sprint Planning and design discussions with the development team to ensure that automation objectives are met.
• Effectively utilize project management tools such as Jira to track requirements, design, and deliveries of the project.
• Develop expertise in the Automated Network Testing (ANT) platform and become an advocate for its use in both a lab and production environment.
• Improve productivity for the overall team by proposing tools or processes that optimize our quality and rate of delivery.
• Understand the business objectives of our team, organization, business unit, and company.
• Create End-to-End (E2) test cases and post-validation templates using ANT.
• Create Command-Line-Interface (CLI) test case template health checks using ANT and regular expressions.
• Collaborate with platform teams, testers and infrastructure teams to troubleshoot automation, tooling and mobility infrastructure networks.
• Participate in script lifecycle management including development, delivery, deployment, updates, defect management.

Basic Qualifications

• Expert level working experience with 3GPP Mobile Packet Core architecture, interfaces and call flows. Specific focus on LTE/NSA SGW/PGW and 5G SA SMF/UPF.
• Hand on experience on TCP/IP, UDP/QUIC protocols, SSL/TLS Encryptions etc.
• Good understanding of Linux, Firewall (NAT/PAT etc.), networking and routing protocols (e.g. Ethernet, VLAN, BGP etc.).
• Expert level working experience troubleshooting mobility infrastructure and services.
• Expert level working experience in creation and maintenance of Azure and Azure DevOps (ADO) concepts including specific experience with:
  • Demonstrated ability to develop ADO Pipelines from the ground up (particularly yaml expressed pipelines).
  • Demonstrated use of az cli commands within ADO Pipelines as a method to interact with Azure Resources.
  • Comprehension of the purpose and limitations of ADO agents.
  • ADO Repos and expanding understanding not only to the purpose but more specifically on branching and tagging methods to optimize code stored in repositories to handle the different environments.
• Understanding the capabilities of Azure Keyvault (AKV).
• Use of Azure Container Registry (ACR) to maintain images and charts through tools used within the pipelines to import, tag, and extract artifacts.
• Understanding of Azure Resource Manager (Endpoints and Service Principals).
• Understanding of Bicep and ARM Templates to build Azure Resources with particular emphasis on parameterization.
• Demonstrated use of Azure Operator Service Manager (AOSM).
• Ability to articulate concepts, solutions, and standards to members of the project with various levels of skills sets through presentations and/or discussions.
• Proficient in Python development.
• 3+ Years of experience working with Regular Expressions (RegEx).
• 3+ Experience in K8s, Azure, Azure Dev Ops, CI/CD.
• Hands on experience developing and maintaining automation scripts following Object Oriented Programming principles.
• Excellent communication, collaboration, reporting, analytical and problem-solving skills.
• Proficient with Agile testing methodologies and best practices.
• Working knowledge of Robot framework, Selenium, Java script, JSON, YAML files etc. 
• Portfolio on GitHub or other platforms.
• Interest in learning new tools and technologies.
• Excellent communication skills (written and oral) and intercultural communication abilities.
• Must have a win as one attitude, to work as a team to carry out projects on time with quality.

Education

Bachelor’s degree in an approved fields for Member of Technical Staff Designation as defined by TCP Program

Weekly Hours:

Time Type:

Location:

It is the policy of AT&T to provide equal employment opportunity (EEO) to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, status with regard to public assistance, veteran status, or any other characteristic protected by federal, state or local law. In addition, AT&T will provide reasonable accommodations for qualified individuals with disabilities. AT&T is a fair chance employer and does not initiate a background check until an offer is made.