MARYCYNTHIA OKEKE
DevSecOps Engineer | Systems Administrator-| LinkedIn | GitHub
- | Abuja, Nigeria
PROFESSIONAL SUMMARY
DevSecOps Engineer with 3 years of deep Linux systems administration experience and proven expertise
in maintaining scalable, secure cloud infrastructure. Skilled in infrastructure-as-code (Terraform),
embedding security into CI/CD pipelines, and applying cloud-native best practices across AWS, Azure,
and GCP. Adept at containerization with Docker and Kubernetes, as well as automation through Python,
Bash, and Ansible. Passionate about integrating security early in the software development life cycle,
enhancing observability, and maintaining clear documentation for compliance and operational excellence.
Experienced in supporting legacy software with pragmatic approaches while driving continuous
improvement.
CORE COMPETENCIES
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Linux Systems Administration: Deep expertise with containerized workloads
Infrastructure as Code: Terraform, CloudFormation, ARM Templates
CI/CD Pipeline Development: GitHub Actions, Jenkins, Azure DevOps
Cloud Platforms: AWS (primary), Azure, Google Cloud Platform
Container Technologies: Docker, Kubernetes (EKS, AKS, GKE)
Vulnerability scanning and security assessment tools (SonarQube, OWASP ZAP, Snyk)
Scripting & Automation: Python, Bash, PowerShell, Ansible
Monitoring & Observability: Prometheus, Grafana, CloudWatch, Datadog
Databases: PostgreSQL, MySQL, Redis, ElasticSearch
Security: IAM, cloud security best practices, compliance frameworks (PCI-DSS, HIPAA)
Documentation: Technical documentation, runbooks, and architecture diagrams
PROFESSIONAL EXPERIENCE
The VR Superstore Corp. (New Jersey, United States)
DevSecOps Engineer | Remote
May 2025 – Present
● Led the implementation of a DevSecOps framework in Azure DevOps, embedding SAST, DAST,
and dependency scanning into CI/CD pipelines, cutting production vulnerabilities by 40%.
● Designed and optimized automated CI/CD pipelines in Azure DevOps, reducing build/release
cycle times by 35% and accelerating secure software delivery.
● Built IaC with Terraform/ARM templates to provision secure, compliant Azure environments,
improving deployment consistency by 95% across all stages.
● Established a continuous vulnerability management system with real-time alerts and dashboards,
reducing patch turnaround time from weeks to 48 hours.
● Streamlined collaboration and project visibility by integrating Microsoft Planner with Azure
DevOps dashboards, improving stakeholder reporting efficiency by 60%.
My Virtual Resources (Florida, United States)
Systems Administrator | Remote
March 2025 – September 2025
● Maintained firewalls, servers, and NordLayer VPN, achieving 99.9% uptime and secure remote
access for all staff.
● Administered Microsoft 365 accounts (user setup, licenses, email security), streamlining
onboarding and reducing account-related issues by 30%.
● Implemented DNS filtering, endpoint protection (SentinelOne), and security patches, reducing
security incidents by 40%.
● Performed system backups and recovery testing, ensuring 100% data integrity and zero critical
data loss during tenure.
● Delivered user support and security awareness training, resolving 95% of IT tickets within SLA
and boosting phishing detection rates by 35%.Collaborated with distributed teams to troubleshoot
infrastructure issues and improve system reliability
Digital Witch (Lagos, Nigeria)
DevOps Engineer Intern | Remote
August 2024 – June 2025
● Deployed and maintained Kubernetes clusters across AWS, Azure, and GCP using Terraform,
reducing environment setup times from days to hours
● Built and optimized CI/CD pipelines using AWS CodePipeline, Azure DevOps, and GitHub
Actions, accelerating feature releases by 35%
● Implemented infrastructure-as-code practices with Terraform modules, achieving 100%
reproducibility and reducing configuration errors by 30%
● Maintained comprehensive documentation for infrastructure systems, processes, and automation
pipelines
● Collaborated with distributed teams to troubleshoot infrastructure issues and improve system
reliability
Steghub (London, United Kingdom)
Junior DevOps Engineer | Remote
July 2024 – February 2025
● Designed and implemented Infrastructure as Code (IaC) using Terraform for AWS and Azure
environments
● Supported development and maintenance of Jenkins-based CI/CD pipelines, improving build
speed by 50%
● Deployed and managed cloud-based load balancers and auto-scaling groups
● Created automation scripts using Python and Bash for configuration management
● Maintained clear documentation for infrastructure practices and troubleshooting runbooks
TECHNICAL PROJECTS
Multi-Cloud Infrastructure Pipeline
● Architected enterprise-grade infrastructure automation using Terraform across AWS, Azure, and
GCP
● Implemented CI/CD pipelines with automated security scanning and compliance checks
● Created comprehensive documentation, including architecture diagrams and runbooks
● Set up monitoring and alerting with Prometheus, Grafana, and CloudWatch
● Demonstrated cloud-native best practices for scalable, secure operations
Secure Hospital Management System
● Deployed a cloud-native hospital management application on Microsoft Azure
● Implemented infrastructure-as-code with Terraform for automated provisioning
● Set up PostgreSQL databases with encryption and access controls
● Created comprehensive security documentation and compliance procedures
CERTIFICATIONS
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Google Cloud Certified – Professional Cloud Security Engineer (May 2025)
Code Yourself! An Introduction to Programming (August 2025)
Foundations of Cybersecurity (August 2025)
Technical Support Fundamentals (October 2023)
Introduction to Scrum Master Certification (January 2024)
Project Management (December 2023)
EDUCATION
Michael Okpara University, Umudike
Bachelor of Science (B.Sc) in Economics
October 2016 – November 2022
ADDITIONAL SKILLS
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Strong analytical and problem-solving skills
Excellent communication skills for technical concepts
Experience working in small, distributed teams
Self-motivated with a proactive approach to learning new technologies
Pragmatic approach to supporting legacy software systems
Enthusiasm for maintaining clear documentation and transparent operations
