Christian Guerrero Email & Phone Number

Detroit, Michigan, Us

Detroit, Michigan, Us

As an IT Operations Specialist I am responsible for the daily operations of my organizations e-commerce applications. I oversee the performance and maintenance of hardware, software, and network ensuring that they all run effectively and efficiently. My responsibilities include: - Proactively collaborating across departments to expedite the resolution of critical incidents and minimize customer impact and revenue loss.- Spearheaded an initiative to reduce the over allocation of application memory in PCF, where we saw over 70% reduction on some of our most critical applications. - Created and maintained robust automation scripts in PowerShell, Bash, and Python, effectively automating application restarts and reducing manual workload by more than 80%, resulting in substantial cost savings and mitigating potential revenue loss of over $500 million.- Coordination among various organizations and vendors to ensure seamless functioning of IT systems in production.-Improving application performance and functionality by proactively preventing production issues through problem management meetings with development teams- Assisting new application teams in achieving production readiness and ensuring the smooth transfer of support documentation to operations teams, prior to the launch.- Assisted teams with both troubleshooting and migrating, from Autosys job automation to Tidal automation.- Continuously expanding knowledge and proficiency in DevOps tools, including Ansible, Puppet, and Terraform, through self-study and hands-on projects.

Detroit, Michigan, Us

-Implemented and maintained CI/CD pipelines using Jenkins, GIT, and Azure DevOps, resulting in a 50% reduction in deployment time and increased release frequency.-Collaborated with development and operations teams to automate infrastructure provisioning and configuration management using tools like Chef and Ansible, leading to improved scalability and reliability.-Created and deployed automations scripts in both Bash and Python to facilitate upgrades, migrations, and maintenance activities-Worked closely with development teams to optimize application performance and troubleshoot issues by analyzing logs, monitoring metrics, and implementing performance tuning strategies.-Conducted regular security assessments and implemented security best practices, ensuring compliance with industry standards and regulations.-Collaborated with cross-functional teams to define and implement monitoring and alerting solutions using tools like Dynatrace, Kibana, and Grafana, enabling proactive issue detection and resolution.-Participated in on-call rotations and responded to incidents promptly, troubleshooting and resolving production issues to minimize downtime and ensure system stability.-Mentored junior team members and conducted knowledge-sharing sessions to foster a culture of continuous learning and growth.

Detroit, Michigan, Us

My role as a Software engineer was focused on building customer friendly UI components using the AngularJS framework. My most notable contribution being the initial development of GM's Owner Center customer experience. Other responsibilities included: - Assisted senior team members in executing project tasks and deliverables. - Collaborated with cross functional teams to support project objectives and timelines most notably the initial integrations with OnStart digital. - Conducted research and analysis to gather data and provide insights for decision-making.- Participated in team meetings and contributed ideas and suggestions for process improvement.- Contributed to the successful completion of 30 assignments within established deadlines and helped launch the Owner Center 2.0 customer experience.

Detroit, Michigan, Us

- Assisted in the development and execution of test plans, test cases, and test scripts.- Conducted thorough testing of software applications, identifying and documenting defects.- Collaborated with cross-functional teams to ensure adherence to quality standards and project requirements.- Participated in test case reviews and provided feedback for continuous improvement.- Contributed to the successful release of Owner Center 2.0 by identifying and resolving critical defects during testing phase.- Assisted in the implementation of an automated testing framework, resulting in improved efficiency and reduced testing time.