Sergio Flores
Senior DevOps & Cloud Engineer | DevOps Leadership | CI/CD | IaC | Kubernetes
- safgflores@hotmail.com
- https://safloresg.com
- Monterrey N.L. Mexico

Innovative and multi-disciplinary Senior DevOps Engineer with over 10 years of experience designing, building, and scaling cloud infrastructure and CI/CD systems for high-performance, distributed applications. Proven leadership in coaching teams, automating workflows, and optimizing AWS-based architectures for scalability and resilience. Passionate about DevOps culture, Infrastructure as Code, and platform engineering.
Work Experience
Sr Devops Engineer
- Led cloud standards and CI/CD processes for ESPN, ABC News, and Disney platforms.
- Managed AWS multi-account environments, ALBs, ECS clusters, and Lambda-based services.
- Designed and deployed infrastructure using CloudFormation; mentored engineers across teams.
- Collaborated with security and engineering on scalable deployment and compliance practices.
Sr Devops Engineer
Developed core tools and frameworks for Teracloud automation (Python, Groovy, Java).
- Automated multi-region CI/CD pipelines using Jenkins, GitHub, AWS services.
- Provided technical support and onboarding for distributed DevOps teams.
- Support and train multiple teams on the usage of our framework and tools.
Devops / Release Manager
- Led the design and implementation of CI/CD pipelines, code quality enforcement, and automation strategies to support scalable, high-performance infrastructure across multiple development teams.
- Orchestrated the migration of critical on-premise applications to AWS, including EKS, ECS, RDS, and Lambda, significantly improving scalability and reliability.
- Mentored teams in modern development practices such as Microservices, Domain-Driven Design, OAuth, Kubernetes, and Selenium-based testing frameworks.
- Deployed comprehensive observability stacks using ELK (Elasticsearch, Logstash, Kibana), CloudWatch, and Prometheus for real-time performance and log analysis.
- Architected CI/CD flows using Jenkins, GitLab CI, GitHub, Helm, Docker, and Serverless, streamlining build and release cycles across multiple environments.
- Implemented automated security patching workflows for Linux (Debian, CentOS, SUSE) and CMS systems like Drupal, ensuring timely resolution of CVEs and infrastructure hardening.
Lead Devops Engineer
- Championed the adoption of DevOps culture and agile methodologies (Scrum, Kanban) across multiple engineering teams to improve software quality, delivery speed, and team collaboration.
- Designed and implemented CI/CD pipelines using GitLab CI, enabling automated, reliable deployments across all services and web applications.
- Led the decomposition of a monolithic system into microservices, improving system scalability, maintainability, and development velocity.
- Trained cross-functional teams in key DevOps and development tools including Docker, Selenium, JMeter, Maven, and Spring Boot, accelerating their ability to build and ship features.
- Optimized infrastructure elasticity and availability on AWS, reducing operational overhead and scaling bottlenecks.
Lead Software Engineer
- Led the technical development of mercadodeboletos.com.mx, a high-traffic ticketing platform built to withstand sustained heavy load during major events.
- Spearheaded the refactoring of the Access Control System to support digital QR-based ticket validation, improving reliability and event entry speed.
- Delivered multiple new features for the core ticket sales system at superboletos.com, enhancing user experience and operational efficiency.
- Provided hands-on technical mentorship to the development team, implementing and coaching on modern best practices such as Spring MVC/Security/Data, Hibernate, JUnit, CI/CD, TDD, Scrum, and OO Design Patterns.
Software Engineer
- Refactorization and maintenance of Epicor 10 modules related to finance (AR, AP, GL among others) - C# .NET
- Creation of unit tests as an improvement of the development process.
- Provide training for unit test and code refactoring.
- Resolution in a short time of bugs and problems in the system for scaled clients.
- Improve the performance of complex financial reports.
Software Engineer Intern
- Maintenance, development and automation of test scenarios (Visual BASIC).
- Tests of new enhancements related to the finance module (AR, AP, GL and others).
- Provide training for unit test and code refactoring.
- Support on the creation of a career path for interns.
- Found more than 80 critical bugs during testing sessions.
Software Engineer Intern
- Architecture,design and development of custom software for PyMES(c#,android SDK,php).
- Design and development of web services for banking companies(java).