Tunji Adeshina
Innovative and solution-oriented Cloud/DevOps Engineer with 10+ years of experience designing resilient, scalable, and secure cloud infrastructure. Deep expertise in AWS, Azure, GCP, Kubernetes, and Terraform. Proven track record of automating CI/CD pipelines, implementing observability at scale, managing hybrid cloud platforms, and enforcing security and compliance. Known for cross-functional collaboration, operational excellence, and reducing incident response time through monitoring, logging, and automation.
Work Experiences
Senior Cloud Engineer
Designed, built, and maintained cloud infrastructure across public and hybrid cloud environments, ensuring high availability, fault tolerance, and cost optimization. Architected and operated Kubernetes clusters in multi-tenant, hybrid setups to support scalable and resilient services.
- Automated infrastructure provisioning using reusable Terraform modules across AWS and GCP, standardizing cloud resource deployments and improving delivery speed.
- Built GitOps workflows using ArgoCD and Helm for declarative, auditable, and environment-aware application delivery across staging and production.
- Modernized CI/CD pipelines using GitHub Actions with composite actions, enabling reusable, team-adoptable automation workflows adopted across 10+ engineering teams.
- Led observability initiatives by deploying Prometheus, Grafana, and Datadog, reducing mean time to recovery (MTTR) by 25% and improving SLO adherence.
- Managed container and artifact lifecycle using Helm and JFrog Artifactory, ensuring secure, traceable, and policy-compliant release processes.
- Partnered with InfoSec and SRE teams to embed secrets management, access control, and audit compliance into deployment workflows.
- Responded to production incidents as part of a 24/7 on-call rotation; led root cause analysis and implemented resilient infrastructure improvements, boosting uptime by 15%.
- Collaborated with cross-functional teams to design and implement a hybrid cloud strategy, enabling seamless migration of on-premises workloads to AWS and GCP.
- Hardened Linux-based systems for cloud deployments, integrating security and compliance into provisioning pipelines and runtime environments.
DevOps Engineer
Led the automation and replication of multi-region cloud infrastructure using Terraform, significantly improving scalability, reducing manual effort, and ensuring consistent deployments across AWS environments.
- Engineered highly available, multi-region AWS infrastructure using modular Terraform code, enabling repeatable, version-controlled provisioning at scale.
- Developed and enforced AWS WAF configurations via Terraform, enhancing security posture and mitigating application-layer threats for microservices.
- Implemented CI/CD pipelines using Jenkins, Docker, and Kubernetes, reducing deployment times by 50% and enabling zero-downtime releases.
- Integrated Prometheus and Grafana into cloud platforms to deliver real-time observability, SLO-based monitoring, and actionable alerting for critical workloads.
- Championed a full-stack observability approach by unifying metrics, logs, and traces, which improved incident response times and reduced MTTR.
- Designed and implemented robust monitoring systems with Prometheus for AWS EC2, ECS, and Lambda targets, incorporating SLO-driven alerting rules and Grafana dashboards to track performance and reliability.
- Maintained secure CI/CD pipelines using Jenkins and JFrog Artifactory, supporting traceable, compliant, and audit-ready release workflows.
AWS Cloud Architect
Designed and implemented secure, scalable infrastructure solutions across cloud and on-premise environments, aligning with ISO 27001 standards to ensure high security, compliance, and operational excellence.
- Architected and deployed complex cloud stacks and on-premise servers with a strong emphasis on ISO 27001 compliance, embedding security best practices into provisioning and runtime processes.
- Modularized Terraform codebases to promote reusability, reduce duplication, and enable seamless collaboration across cross-functional engineering teams.
- Automated microservice deployments using Jenkins, Ansible, and Helm, significantly improving release velocity, service reliability, and deployment consistency across environments.
- Engineered scalable infrastructure to handle high-throughput workloads and stringent uptime targets, achieving 99.99% availability for mission-critical systems through resilient design and proactive optimization.
- Implemented CI/CD pipelines using Jenkins, Docker, and Kubernetes, reducing deployment times by 50% and enabling zero-downtime releases.
- Integrated Prometheus and Grafana into cloud platforms to deliver real-time observability, SLO-based monitoring, and actionable alerting for critical workloads.
- Championed a full-stack observability approach by unifying metrics, logs, and traces, which improved incident response times and reduced MTTR.
Cloud Engineer
Company focused on automating all homes across Africa to give every Nigeria a Smart Home experience.
- Engineered CI/CD pipeline automation using Chef and Jenkins, deploying applications to Kubernetes with zero downtime and significantly improving deployment efficiency.
- Designed and Maintained all Cisco Network infrastructure.
- Led the containerization of native apps into microservices, increasing application scalability and improving resource allocation.
- Developed company website using php and Mysql with Apache.
- Setup and management of observability stack for logs, and traces, which improved incident response times and reduced MTTR.
Systems Administrator
Responsible for design, deployment, and management of core IT infrastructure supporting over 5,000 employees.
- Email Infrastructure Management: Configured, deployed, and maintained a scalable, Linux-based mail server solution, ensuring reliable email communication across the organization.
- Network Security & Data Protection: Implemented and monitored network security protocols and backup solutions, significantly reducing downtime and mitigating security risks.
- Infrastructure Scaling: Led the expansion of the company’s server infrastructure from 3 to 11+ servers within one year, enhancing performance, availability, and scalability to meet growing business needs.
- System Optimization: Ensured high availability and optimal performance of servers and services through proactive monitoring, patching, and capacity planning.
- Collaboration & Support: Worked closely with cross-functional teams to troubleshoot system issues and support internal users, enhancing overall IT service delivery.
Help Desk Analyst
Provided technical support and troubleshooting assistance to end-users, resolving hardware and software issues in a timely manner.