Sr. Systems Engineer - job 27 of 33

As a Senior Systems Engineer at Visa Technology & Operations LLC, your main responsibilities will include providing extensive infrastructure operations and production support for container technologies, particularly using Docker and Kubernetes. You'll be tasked with deployment, optimization, and the management of containerized applications, alongside ensuring the security of the Kubernetes cluster through effective monitoring and auditing. Collaboration with multiple teams across the organization to ensure seamless support for all business lines is also a key focus.

To excel as a Senior Systems Engineer at Visa Technology & Operations LLC, candidates typically need a robust background in infrastructure management, specifically with skills in Docker and Kubernetes. Experience with security practices, including vulnerability assessments and patch management, is crucial. Additionally, familiarity with ITIL practices, such as Incident, Change, Problem, and Release Management, will greatly benefit applicants looking to join this innovative team.

Success as a Senior Systems Engineer at Visa Technology & Operations LLC hinges on strong technical skills with container technologies, especially Docker and Kubernetes. Proficiency in security hardening, system monitoring, and established ITIL practices is also essential. Moreover, effective communication skills and the ability to explain complex technical concepts to various teams will greatly enhance your effectiveness in this role.

Yes, as a Senior Systems Engineer at Visa Technology & Operations LLC, you will be required to be on-call to support our infrastructure and systems whenever necessary. This is an important part of the role as it ensures that our services remain operational and reliable, directly contributing to Visa's standards of excellence.

The Senior Systems Engineer position at Visa Technology & Operations LLC is based in Highlands Ranch, CO, but it may offer flexibility for partial telecommuting. This allows you to balance your professional responsibilities while enjoying the benefits of a supportive work environment that values productivity and employee well-being.

In approaching the deployment of containerized applications with Kubernetes, I first assess the application's requirements and then create the necessary configuration files for deployment. I focus on ensuring scalability and reliability by utilizing Helm charts for packaging applications and managing version control. Continuous integration and deployment practices are essential to streamline the update process.

My experience in hardening Kubernetes clusters includes implementing role-based access controls, configuring network policies, and using tools like kube-bench to ensure compliance with security benchmarks. I also establish logging and monitoring systems to detect and respond to abnormal activities promptly, which is crucial for maintaining a secure environment.

I have a solid understanding of ITIL practices, including Incident, Change, Problem, and Release Management. In previous roles, I've applied these principles to streamline processes, reduce downtime, and enhance service delivery. For instance, I implemented change management strategies that minimized disruptions during software upgrades, ensuring continuity of services.

Handling vulnerability assessments involves regularly scanning systems and applications for potential vulnerabilities using various tools, followed by analyzing the results and prioritizing them based on severity. Patch management then involves scheduling, testing, and deploying patches while maintaining clear documentation to track updates and ensure compliance with security policies.

One challenging situation I encountered was during a major Kubernetes upgrade that resulted in compatibility issues with our existing applications. To address this, I coordinated with developers to assess the impact, devised a rollback plan, and conducted thorough testing before proceeding with a phased upgrade approach, ultimately minimizing risks and ensuring service continuity.

For monitoring and auditing container environments, I leverage tools like Prometheus and Grafana to collect metrics and visualize performance data. I also implement auditing logs to track user actions and system changes, enabling effective forensic analysis in case of security incidents, thereby ensuring accountability and transparency.

Effective communication with cross-functional teams starts with establishing clear goals and understanding each team's perspectives. I use regular stand-up meetings, collaborative tools like Slack and Confluence, and emphasize proactive information sharing to ensure everyone is aligned, which fosters a culture of collaboration and timely problem-solving.

I have extensive experience with scripted automation using languages like Python and Bash to streamline repetitive tasks such as deployments and monitoring. The benefits include increased efficiency, reduced potential for human error, and the ability to ensure consistent configurations across environments, which is essential for maintaining a stable infrastructure.

To measure the performance of containerized applications, I track metrics such as response time, error rates, CPU and memory usage, and throughput. These metrics help in identifying bottlenecks and ensuring optimal resource allocation. Using monitoring tools, I set alerts for anomalies, allowing for timely investigation and resolution of performance issues.

When managing multiple systems and projects, I prioritize tasks based on urgency and impact. I use project management tools like Jira to keep track of outstanding tasks and regularly review and adjust priorities based on changing business needs and system requirements to ensure that critical issues are addressed promptly.