**Job Description:** **About the Job:** As a **Lead Software Engineering** - you’ll play a critical role in ensuring critical API platforms(Cloud/Onprem) stability, availability, and compliance while resolving high-level escalations. You’ll oversee upgrades, troubleshoot complex issues, and maintain observability, working closely with cross-functional teams to meet business and technical needs. This role requires a holistic understanding of the platform, deep technical expertise, and the ability to manage projects efficiently. Requires working with cross functional teams, collaborate with security experts, public cloud teams and network engineers to create software to implement APIs for network, consumer, and business solutions. **Experience Level:** 12+ Years **Roles and Responsibilities:** + Responsible for designing, deploying, and managing cloud infrastructure solutions on Microsoft Azure ensuring security, availability, and scalability of systems + Maintain a comprehensive understanding of the platform, identifying upgrade needs, resolving compliance issues, and ensuring client availability + Lead Tier 4 outage resolution, managing critical escalations to minimize downtime and restore services swiftly. + Conduct deep-dive network investigations, troubleshoot complex issues (e.g., HTTP error codes, Azure/Mulesoft networking), and configure CORA, Azure Traffic Manager, Azure Front Door, Kubernetes Ingress, DNS, and private endpoints + Manage certificates, including gateway/cluster ingestion, and sync certificates from Keyfactor to Key Vaults to clusters + Write detailed technical specifications for upgrades (e.g., AKS, RTF, NGINX, AKV2K8s, Fluentbit, Noname) and ensure alignment with technical and business requirements + Oversee observability using OpenSearch and Fluentbit, including querying, cluster management, index configuration, caching optimization, and log ingestion troubleshooting + Maintain and upgrade Azure Kubernetes (AKS) clusters, troubleshoot node pools, manage pod disruption budgets, secrets syncing, and understand daemonsets, replicasets, and deployment + Support Mulesoft integrations, perform RTF installations/upgrades, validate release notes, and troubleshoot ingress/pod templates + Remediate Astra violations across systems (Linkerd, istio,Calico, NGINX, Noname, AKV2K8s) and train teams to address violations effectively. Manage projects across multiple tools, ensuring timely progress and completion of tasks. Working with Infrastructure as Code (IaC) tools and automating tasks + Advanced troubleshooting, and performance optimization + Candidate will provide tier 3 support on a rotating basis, working closely with other teams and subject matter experts. + This candidate needs to be proactive and demonstrate the ability to analyze issues, generate ideas, and initiate action while achieving results. + Actively participate in Scrum, providing status of tasks and coordinating with project team to meet requirements. + Extended hours and weekend release work may be required. + Experience working in an environment where coordination with multiple teams is essential to success. **Primary / Mandatory skills:** Overall – 12+ years of experience in platform engineering, API platforms, Azure Kubernetes (AKS), Mulesoft, and observability tools (OpenSearch, Fluentbit) managing Azure resources, automating deployments + Very strong written and verbal skills. + Prior experience in large API platform framework, API development using M2E, AJSC would be a plus. + Ability to prioritize individual/group work in a deadline driven environment. + Experience designing and deploying AKS environments. + Expertise in networking, troubleshooting, and configuring Azure Traffic Manager, Azure Front Door, Kubernetes Ingress, DNS, and private endpoints + Strong skills in writing technical specifications for upgrades (AKS, RTF, NGINX, AKV2K8s, Fluentbit, Noname) + Proficiency in managing certificates and syncing across systems (Keyfactor, Key Vaults, clusters) + Advanced knowledge of OpenSearch (cluster management, indexing, caching) and Fluentbit (configuration, log ingestion) + Experience with Mulesoft RTF installations, upgrades, and troubleshooting + Ability to remediate Astra violations and train teams on compliance + Strong project management skills, with experience tracking tasks across multiple platforms. **Technical Skills** : Extensive expertise in Azure, Java/Python, Kubernetes, MuleSoft, OpenSearch, Fluentbit, networking, and compliance remediation. **Additional information (if any):** Willing to work in Shift Duties, Willingness to learn is very important as AT&T offers excellent environment to learn Digital Transformation skills. **Weekly Hours:** 40 **Time Type:** Regular **Location:** IND:KA:Banglaore / Intl Tech Park, Whitefield Rd - Storage: Innovator Building, Itpb, Whitefield Rd 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. 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