Dennis Stine
De Soto,MO
Summary
Results-driven DevOps Engineer with expertise in CI/CD pipelines, cloud infrastructure, and container orchestration. Proven ability to enhance deployment processes and ensure system reliability.
Overview
15
15
years of professional experience
Work History
DevOps Engineer
Maritz Global Events
St. Louis, Missouri
09.2019 - Current
- Implemented CI/CD pipelines to enhance software deployment speed and reliability.
- Configured, managed, monitored cloud-based services using CloudFormation for robust infrastructure.
- Managed cloud infrastructure, optimizing performance and reliability to support application availability.
- Collaborated with development teams to integrate DevOps practices into workflows, enhancing project delivery timelines.
- Currently configuring container orchestration using Docker and Kubernetes for scalable applications.
- Led transformation from on-prem VMware RHEL hosts to AWS AL2023 EC2s and other native services
- Converted applications from shared Tomcat hosting to Dockerized Spring Boot format to enhance scalability.
- Led incident response efforts, troubleshooting and resolving system outages to minimize downtime and restore services swiftly.
- Administered version control systems, transitioning from Mercurial to GitLab and finally to GitHub for software development.
Senior Software Engineer
Popwallet
New York, New York
02.2019 - 06.2019
- Conducted code reviews to enhance software quality and maintainability, leading to fewer post-release defects.
- Mentored junior developers to develop coding skills and ensure adherence to best practices, resulting in stronger team capabilities.
- Participated in sprint planning sessions to align development efforts with business objectives, facilitating timely project delivery.
Senior Programmer Analyst (previously P.A. I / II)
Edward Jones
St Louis, Missouri
09.2011 - 04.2018
- Led the effort to abandon the custom Spring Framework apps, opting for Spring Boot in Docker containers.
- Proved that business applications could be migrated to vanilla Spring Boot quickly from a custom "framework" based on Spring Framework 3 and 4.
- Provided "spring-boot-starters" and associated REST services to replace shared EJB service dependencies.
- Required the use of unit tests(via SonarQube) to improve code quality and reliability.
- Led code reviews and provided mentorship to junior programmers in best practices.
- Researched containerization and microservices technologies to enhance system capabilities.
- Researched emerging technologies to identify and recommend improvements for existing systems, fostering innovation.
- Maintained GitHub (and CVS previously) to track changes in source code.
Education
Bachelor of Science - Computer Science
Concordia University Wisconsin
Mequon05-2011
Skills
- CI/CD pipelines (Jenkins, GitHub Actions)
- Cloud infrastructure management (AWS)
- Container orchestration (Mesos Marathon, Swarm Portainer, K8s)
- AWS services (EC2, S3, IAM, Lambda, LBs, CloudFront, Route 53, etc)
- Infrastructure automation and IaC
- Spring Framework/Spring Boot development
- Incident response (nagios, PagerDuty, AWS alerts)
- Monitoring and logging (SumoLogic, Splunk, CloudTrail)
- Linux system administration
- Agile methodologies
- Code reviews
- Test automation
Timeline
DevOps Engineer
Maritz Global Events
09.2019 - Current
Senior Software Engineer
Popwallet
02.2019 - 06.2019
Senior Programmer Analyst (previously P.A. I / II)
Edward Jones
09.2011 - 04.2018
Bachelor of Science - Computer Science
Concordia University Wisconsin