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 workplace.
- 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, and 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/NRF/MIND/UDR/UDM.
- Hands-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 Azure 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).
- 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+ Years of Experience in K8s, Azure, Azure DevOps, 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, JavaScript, 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.

Weekly Hours:

40

Time Type:

Regular

Location:

Bangalore, India

AT&T; and its subsidiaries are committed to equal employment opportunity. All hiring, promotion, and other employment decisions remain merit-based and free from discrimination on the basis of race, color, religion, religious creed, national origin, ancestry, age, sex, sexual orientation, gender, gender identity, gender expression, physical disability, mental disability, pregnancy, medical condition, genetic information, marital status, citizenship status, military status, veteran status, or any other characteristic protected by federal, state, or local laws. In addition, AT&T; will provide reasonable accommodations to qualified individuals with disabilities. AT&T; is a fair chance employer and does not initiate a background check until an offer is made. Click here (opens in new window) to learn more or request an application accommodation here (opens in new window).

Job ID: R-117904
Date posted: 08/07/2026
Locations - Bengaluru, India

📌 Sr Specialist System Engineering- 5G Packet core engineer, Linux is MUST (Bengaluru)
🏢 At&T
📍 Bengaluru