Samuel Ajaru

About Samuel Ajaru

Dynamic and results-oriented DevOps Engineer with 5+ years of experience in IT, specializing in supporting, analyzing, and managing large-scale software applications in cloud environments. Skilled in configuring and automating CI/CD pipelines using a wide range of DevOps tools to enable seamless integration, development, testing, deployment, monitoring, and security. Known for a data-driven and client-focused approach. Seeking a DevOps Engineering role to further leverage my expertise in microservices architecture, application containerization, infrastructure as code (IaC), and continuous delivery practices.Technical Skills and Tools:CI/CD & Automation: Jenkins, GitHub/GitLab, Maven, SonarQube, Nexus, JFrog, AnsibleContainerization & Orchestration: Docker, Kubernetes, Helm, Docker SwarmCloud Infrastructure: AWS (EC2, RDS, S3, IAM, EKS, etc.)Infrastructure as Code: TerraformMonitoring & Logging: Prometheus, Grafana, ELK/EFK stacksScripting & Programming: Python, Bash, GroovyWeb & Application Servers: Tomcat, Wildfly, Apache, NGINXSecurity: IAM, AWS security tools, network hardening, ISO 27001, NISTCollaboration & Project Management: Jira, Scrum, Agile methodologiesDatabases: MongoDBNetworking: Routing, firewalls, cloud security best practicesCompTIA Security+ CertificationAmazon Web Services Solutions Architect - Associate Certification

Experience

1. Devops Engineer

   HCLTech

   Jul 2022 — Present · US

   Designed, implemented, and maintained Jenkins CI/CD pipelines to automate end-to-end deployment of software applications, supporting both scheduled and ad-hoc release cycles- Integrated and managed core DevOps tools within the CI/CD workflow including Git/GitHub, Maven, SonarQube, Nexus, Docker, Kubernetes, Ansible, and Apache Tomcat- Developed and customized Jenkins pipelines using Declarative and Groovy scripting to meet diverse build and deployment requirements across multiple environments- Configured GitHub webhooks and Jenkins build triggers to enable automated pipeline executions upon code commits, accelerating development feedback loops- Installed and administered Jenkins plugins to extend platform capabilities, including credential management, artifact handling, and Kubernetes integration- Enforced security practices through Jenkins RBAC and access control policies across DevOps tools to ensure compliance and minimize exposure- Orchestrated containerized deployments using Docker and Kubernetes, leveraging Deployments, Services, ConfigMaps, Secrets, and Ingress Controllers for secure and resilient application delivery- Transitioned services from Docker Swarm to Kubernetes for enhanced scalability, fault tolerance, and centralized orchestration- Used Helm to manage application packaging, configuration, and deployment of internal and third-party software across staging and production clusters- Configured Kubernetes Ingress with TLS and routing rules to protect applications and support secure access paths- Provisioned and maintained AWS infrastructure using Terraform, ensuring reproducible, modular, and version-controlled environments- Implemented monitoring and alerting stacks using Prometheus and Grafana for performance metrics and infrastructure visibility- Automated centralized log management using the EFK stack (Elasticsearch, Filebeat, Kibana); configured log retention policies and scheduled backups to AWS S3.

Education

• The University of Texas at San Antonio

  Bachelor of Business Administration - BBA, Information Technology

  2015 — 2021