• Implement and maintain security controls throughout the development pipeline, ensuring security is embedded in every phase of the software development lifecycle. • Collaborate with Information System Security Officers (ISSOs) to review Security Technical Implementation Guides (STIGs) and support Authority to Operate (ATO) processes, ensuring compliance with security standards and regulatory requirements. • Design, implement, and maintain secure CI/CD pipelines with automated security testing, vulnerability scanning, and compliance checks integrated into deployment workflows. • Actively participate in Scrum ceremonies, including sprint planning, daily standups, sprint reviews, and retrospectives, while providing security guidance and effort estimates for security-related tasks. • Conduct regular security assessments, vulnerability scans, and penetration testing, while coordinating remediation efforts with development teams. • Develop and maintain secure infrastructure configurations using Infrastructure as Code principles with automated security policy enforcement. • Implement and manage security monitoring tools, logging systems, and incident response procedures to detect and respond to security threats in real time. • Perform security risk assessments, threat modeling, and security architecture reviews to identify and mitigate potential vulnerabilities. • Create security documentation, procedures, and training materials while maintaining compliance artifacts for audit purposes.

• Collaborate with software development teams and support their releases, develop, and maintain CI/CD pipelines. • Design and implement automated infrastructure. • Maintain existing cloud infrastructure/VMs. • Monitor the environment, analyse and solve problems if required. • Utilise your understanding of the Software Development Life Cycle to proactively optimise and automate infrastructure and processes.

• Maintain the reliability, availability, and performance of production and pre-production environments • Monitor platform health and improve alerting, automation, and operational processes • Respond to production incidents, participate in root cause analysis, and implement long-term improvements • Design, build, and enhance observability solutions using metrics, logs, traces, and dashboards • Partner with software engineers to improve application reliability throughout the development lifecycle • Develop and maintain operational documentation, troubleshooting guides, and runbooks • Automate repetitive operational tasks to improve efficiency and reduce manual intervention • Participate in on-call rotations while continuously improving incident response processes • Promote reliability engineering principles, operational excellence, and continuous improvement across engineering teams

Role Description We are seeking a highly skilled and proactive Senior Lead Site Reliability Engineer (SRE) to join our team, focusing on production support and performance optimization across our portal ecosystem. This role is critical to ensuring the reliability, scalability, and efficiency of our systems, with a strong emphasis on AWS infrastructure, observability, automation and AI-assisted engineering practices. The Senior Lead SRE requires an AI-native mindset, understands the software development lifecycle (from coding to support) and applies modern AI tools to enhance productivity, quality, and operational excellence. This role will shape how Lumen combines the latest technologies, including AI-driven automation, to modernize software delivery and application lifecycle management. This role will collaborate with key stakeholders across the engineering organization — including product owners, developers, and testers — to design, optimize, and automate business and technical processes, while effectively navigating multiple teams within a large and complex organization. Location This role is designated as a fully remote position within the United States. Main Responsibilities - Production Support & Incident Management - Help define and improve the processes and best practices for incident management within the customer facing applications. - Implement AI systems and automations to assist during ongoing outages and triage potential ones. - Work with the development teams to ensure that they have all the data normally needed during an outage at their fingertips including preliminary analysis by AI. - Design and implement improved SRE processes to handle incidents. - Performance Optimization - Monitor system performance and proactively identify bottlenecks or degradation using AI-driven observability and anomaly detection tools. - Implement tuning strategies across application layers, databases, and infrastructure. - Drive initiatives to improve latency, throughput, and resource utilization. - Monitoring & Observability - Deploy improved alerting for Lumen Connect in depth, focusing on outside in but including early indicators for fulfilment and other areas. - Proactively monitor the errors and performance on Lumen Connect. - Design and maintain dashboards, alerts, and metrics using tools like Datadog, AppInsights, CloudWatch, or similar. - Automation & Infrastructure as Code - Develop and maintain automation scripts and tools for deployment, scaling, and recovery, leveraging AI-assisted code generation and validation tools. - Use Terraform, or similar IaC tools to manage AWS resources. - Reliability Engineering - Perform an in-depth analysis of the overall system and its dependencies, implementing techniques to increase the global availability. - Champion SRE principles such as SLIs, SLOs, and error budgets. - Advocate for resilient architecture and fault-tolerant design patterns. - Collaboration & Communication - Work closely with software engineers, DevOps, and product teams to align reliability goals. - Document processes, runbooks, and best practices for knowledge sharing. - Provide mentorship and guidance on reliability and operational excellence. Qualifications - 10+ years overall professional experience in SRE, DevOps, or infrastructure engineering roles. - Experience with Terraform, or similar IaC tools to manage Cloud resources. - Proficiency in scripting languages (Python, Bash, etc.) and automation frameworks. - Experience with CI/CD pipelines and tools like GitHub Actions, Jenkins or GitLab CI. - Solid understanding of monitoring and logging tools (e.g., CloudWatch, ELK, Datadog). - Familiarity with containerization and orchestration (Docker, Kubernetes). - Excellent AI and problem-solving skills, and a proactive mindset. Preferred Qualifications - Experience in AWS services (EC2, CloudFront, EKS, RDS, S3, etc.). - Certifications in AWS or related technologies are a plus. - Experience of application development using Java Microservices and Spring Boot framework. - Experience with Agile/SCRUM Methodologies and development practices. Compensation This information reflects the anticipated base salary range for this position based on current national data. Minimums and maximums may vary based on location. Individual pay is based on skills, experience and other relevant factors. - $132,232 - $176,310 in these states: AL, AR, AZ, FL, GA, IA, ID, IN, KS, KY, LA, ME, MO, MS, MT, ND, NE, NM, OH, OK, PA, SC, SD, TN, UT, VT, WI, WV, WY - $138,844 - $185,124 in these states: CO, HI, MI, MN, NC, NH, NV, OR, RI - $145,456 - $193,940 in these states: AK, CA, CT, DC, DE, IL, MA, MD, NJ, NY, TX, VA, WA Benefits - Comprehensive package featuring a broad range of Health, Life, Voluntary Lifestyle benefits and other perks that enhance your physical, mental, emotional and financial wellbeing.