Devops Engineer Cloud Infrastructure

Samuel Olayinka

Katy, TX, ***** • **************.****@*****.*** • +1-617-***-****

linkedin.com/in/samuel-olayinka-12951ba9/

Summary

DevOps Engineer with over 6+ years of Experience in cloud infrastructure management, system automation, and CI/CD pipeline development. Proficient in building scalable, secure, and highly available systems on AWS, Azure, and GCP. optimizing system performance, and implementing monitoring and incident management. Skilled in leveraging Jenkins, Docker, Kubernetes, and Terraform. Collaborating in Agile environments to deliver reliable and cost-efficient solutions. Education

Bachelor of Science in Computer Science

University of Arkansas Grantham, Lenexa, Kansas

Skills

• Methodologies & DevOps: SDLC, Agile, Waterfall, Scrum, DevOps

• Cloud & Infrastructure: AWS, Azure, GCP, Terraform, CloudFormation, Ansible, Chef, Puppet, Docker, Kubernetes, Helm

• CI/CD & Automation: Jenkins, GitLab CI, CircleCI, Azure DevOps, GitHub Actions, Tektone, Ant, Maven, Gradle

• Monitoring & Incident Management: Grafana, Prometheus, DataDog, ELK Stack, Splunk, Nagios, PagerDuty, ServiceNow

• Programming & Scripting: Python, Shell Scripting, PowerShell, Node.js, JavaScript, RC++, PHP, SQL

• Frameworks & Tools: React, Angular.NET, Django Rest Framework

• Version Control & Collaboration: Git, GitHub, Bitbucket

• Databases & Servers: Oracle, SQL Server, MySQL, MariaDB, MongoDB, PostgreSQL, Apache Tomcat, NGINX

• Networking & Security: TCP/IP, UDP, HTTP, SSL/TLS, DHCP, ARP, ICMP, LAN, WAN, DNS, NAT, PAT, ACL, RIP, OSPF, EIGRP, BGP, Static Routing, HSRP, VLAN, VTP, STP, RSTP

• Operating Systems: Linux, Windows, Unix

Experience

Northern Trust, USA Mar 2024 - Present

DevOps Engineer

• Spearheaded AWS cloud migration for 50+ microservices-based applications, leveraging EC2, S3, Lambda serverless functions, and VPC configurations, boosting 30% application performance.

• Tripled deployment frequency by implementing GitLab CI/CD pipelines with blue-green deployment strategies, enabling rapid releases, seamless rollbacks, and enhanced pipeline observability.

• Slashed system downtime by 60% by containerizing applications with Docker, orchestrating via Kubernetes with Helm charts, and integrating Chaos Engineering for resilience testing.

• Strengthened security compliance, cutting security incidents by 25%, through IAM policy hardening, AWS CloudTrail for audit trails, and automated log monitoring with centralized observability.

• Engineered automation scripts in Python, Bash, and Ansible, streamlining repetitive tasks, optimizing workflows, and improving operational efficiency by 40%.

• Elevated infrastructure reliability to 99.95% by automating failover mechanisms, implementing self-healing AWS architectures, and deploying resilient, multi-AZ configurations for high availability. UnitedHealth Group, TX Jan 2022 - Feb 2024

DevOps Engineer

• Integrated MATLAB models and runtime with Linux-based cloud servers, improving simulation speed by 20% for research and analytics workflows.

• Managed Azure cloud resources supporting a high-traffic healthcare application, achieving 99.95% uptime through proactive scaling and performance tuning.

• Configured BGP routing to establish ExpressRoute connectivity between Azure and on-premises data centers, reducing network latency by ~30%.

• Designed and validated LAN/WAN networks using Cisco Packet Tracer; implemented routing protocols including OSPF, HSRP, and STP for simulation accuracy.

• Reduced deployment errors by 60% by containerizing applications using Docker and standardizing environment configurations.

• Built CI/CD pipelines using Jenkins and GitLab CI, cutting deployment time by 40% and enabling faster rollouts of updates and hotfixes.

• Supported enterprise networking stack including DNS, DHCP, MPLS, GRE, and VLANs, contributing to secure and stable hybrid cloud operations.

• Participated in Agile and Waterfall projects, aligning DevOps practices with development cycles for 10+ cross- functional teams.

Allstate, TX Jun 2018 - Dec 2021

DevOps Engineer

• Designed and managed release pipelines for 25+ enterprise applications, improving deployment frequency by 3x through automation in Jenkins.

• Migrated and containerized legacy applications using Docker, reducing resource overhead and deployment time by

~50%.

• Enabled zero-touch deployments for multiple microservices using Jenkins pipelines, increasing production release reliability to 99%.

• Automated infrastructure provisioning with Puppet on AWS EC2 and S3, reducing manual configuration efforts by 70%.

• Managed Kubernetes clusters for container orchestration, ensuring autoscaling and high availability across dev and prod environments.

• Streamlined CI/CD workflows in Jenkins to shorten integration cycles and enforce consistent testing across environments.

• Created PowerShell scripts to automate server maintenance and Active Directory operations, saving ~8 hours/month in manual admin work.

• Maintained 30+ Linux-based environments, implementing configuration and change management policies to meet compliance standards.

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