Sean Stevens Email & Phone Number

Houston, Texas, United States

Delaware, United States

- Led the implementation of a CI/CD pipeline involving Git, Jenkins, Sonarqube, Selenium, KubeStack, Ansible, and Terraform resulting in a 50% reduction in deployment time and improved software quality.- Implemented various dashboards metrics, alarms, and notifications for servers using AWS Cloud Watch, Grafana, Prometheus, and ELK Stack for logging, reducing the time to resolve issues by 40%.- Integrated the alerting system with Slack to trigger events for our cluster and notify on-call engineers in real time, resulting in faster incident response and resolution times.- Created a comprehensive documentation enabling future developers to understand the work done.

- Led design and implementation of decentralized infrastructure architecture on blockchain-based technologies, ensuring high availability and fault tolerance for metaverse platform- Utilized Terraform for IaC, automating provisioning and management of cloud resources across multiple AWS environments, enhancing efficiency and consistency- Created custom Terraform modules to automate deployment of Kubernetes clusters, improving platform scalability and reliability- Collaborated with dev team to integrate web3 protocols, enabling users to interact with smart contracts and dApps within the platform- Implemented sharding mechanism to horizontally scale platform's databases and storage systems on AWS, improving data distribution and access- Designed scalable event-driven architecture on AWS using Apache Kafka, enabling real-time user interactions and event handling- Implemented robust Kubernetes architecture on AWS using advanced scaling techniques, allowing platform to handle fluctuating user demand while optimizing resource utilization- Worked with security team to implement secure key management and authentication mechanisms, ensuring secure and seamless user authentication and interaction- Conducted load testing and performance optimization on AWS infrastructure, resulting in a platform capable of handling up to 5k concurrent users- Utilized Kubernetes Operators to automate management of complex applications and services, allowing for efficient upgrades, scaling, and backups on AWS- Leveraged AWS services like Lambda or ECS to execute serverless functions and microservices, improving resource utilization and reducing operational costs- Created comprehensive documentation and training materials to educate team on web3 and blockchain-based technologies, as well as infrastructure and architectural decisions made to support platform's scalability and security on AWS.

Lagos State, Nigeria

During my tenure as a DevOps Engineer at Hotel.ng, I had the privilege of operating on a contractual basis, where my responsibilities primarily revolved around the implementation of DevOps practices within the organization.My primary task entailed optimizing databases and administering daily tasks to enhance the overall functionality and reliability of the system. I accomplished this through the creation of automated workflows and continuous integration and delivery pipelines that ensured the smooth and seamless deployment of software releases.In addition to optimizing databases, I leveraged my expertise to provide technical assistance and support to the development team. Through close collaboration, we implemented best practices that facilitated faster and more efficient software delivery, thereby enhancing the organization's overall performance and agility.Overall, my experience as a DevOps Engineer at Hotel.ng equipped me with the knowledge and skills necessary to navigate the dynamic and rapidly evolving technology landscape, making me a valuable asset to any organization seeking to enhance its DevOps capabilities.

Abuja, Federal Capital Territory, Nigeria

- Successfully migrated servers from the data center to Amazon Web Services Cloud (PaaS & SaaS), resulting in a cost savings of $4,000 | month and improved availability and reliability.- Designed AWS infrastructure for multiple applications, including creating and configuring Virtual Private Cloud (VPC), EC2 instances, Load balancing systems, RDS databases, S3 buckets, Route53 DNS, SNS notifications, CloudFront CDN, Cloud Watch monitoring, SGs and IAM roles and policies.- Built continuous integration and deployment pipelines for 20+ services, optimizing release automation, speeding up deployments by 75%, and improving code accuracy by 30%.- Reduced security incidents by 60% through continuous QA testing and vulnerability management.- Using tools such as Prometheus, and Grafana, we maintain 24-hour operations, monitor all applications, and ensure 99.9% uptime for the servers.

Lagos State, Nigeria

- Successfully oversaw a team of interns as the lead devops engineer for an open-source project called Zuri Chat, which includes 15 additional program plugins and two mobile apps.- Built and supervised all CI/CD Pipelines using Jenkins and GitHub actions, ensuring smooth and efficient testing and deployment across all applications.- Developed Ansible Playbooks for transferring applications to new servers, resulting in streamlined processes and minimized downtime.- Implemented state-of-the-art monitoring tools such as Nagios and Prometheus to maintain 24-hour operations and ensure 99.9% uptime for servers.- Contributed to open-source development, collaborating with developers from around the world and driving innovation in the field of online collaboration.

Lagos State, Nigeria

Abuja, Federal Capital Territory, Nigeria

- Coordinated full lifecycle agile methodology from stakeholders' requirements analysis, platform selection, technical architecture application design & RESTful/API development, troubleshooting / testing, and deployment, resulting in a 40% increase in site reliability and improved user experience- Utilized configuration management tools and infrastructure provisioning scripts, playbooks and modules to migrate 25 enterprise applications with zero downtime, ahead of schedule and under budget.- Streamlined automated deployments across a fleet of 50+ servers throughout multiple DevOps environments, increasing speed-to-market by 33%.- Developed container orchestration technologies involving ECS, ECR, Docker Swarm and Kubernetes, across 30+ microservices, leading to an improvement in application performance by 80%. - Applied DevSecOps engineering practices to all applications, triggering a security compliance rating increase of 60%.

As I embarked on my journey towards becoming a DevOps professional, I recognized the importance of gaining practical experience in the field. To that end, I took on various freelance projects with organizations, where I applied my skills in System Administration and began building my expertise in DevOps. By working on real-world challenges, I gained valuable insights into the complexities of deploying and maintaining systems in a fast-paced environment, and honed my problem-solving skills. Through my freelance experience, I was able to enhance my knowledge, while simultaneously delivering high-quality solutions to my clients.

Lagos State, Nigeria