Attila Pápai
Verified Expert in Engineering
Bash Developer
Auckland, New Zealand
Toptal member since November 12, 2021
Attila is a Red Hat-certified engineer with 16+ years of experience in the IT industry. He focuses on Linux administration, server automation with Git, Terraform, and Ansible, and command-line and shell programming with Bash and Python. He is experienced with Amazon cloud products such as EC2, RDS, IAM, and ECS and server-side technologies such as Apache and NGINX. Attila enjoys solving problems, improving customer satisfaction, and working effectively within a team with minimal supervision.
Portfolio
Experience
- Rocky Linux - 16 years
- Bash - 16 years
- Red Hat Enterprise Linux - 16 years
- Linux - 16 years
- Linux Administration - 12 years
- System Administration - 12 years
- Ansible - 6 years
- DevOps - 4 years
Work Experience
Technical Security Engineer/DevOps
Yahoo Inc.
- Managed and monitored around 1,350 physical Linux servers across Yahoo’s global data centers, performing advanced Linux administration and security-focused patching to maintain reliability and support cloud migration.
- Followed trunk-based development practices with feature branches, pull request reviews, and CI/CD pipeline integration for automated validation.
- Resolved major network visibility issues by diagnosing systemd/service dependency failures and implementing durable Ansible fixes.
- Developed custom automation scripts in Go, Python, and Bash to streamline routine maintenance tasks and integrate with CI/CD pipelines, reducing deployment time and human error.
- Improved monitoring and automation quality, helping reduce mean time to repair (MTTR) by more than 60% through faster detection-to-remediation workflows (per internal tooling outcomes).
DevOps and Systems Engineer
Telecommunications Company
- Handled OpenShift administration and Kubernetes infrastructure support.
- Automated the configuration management procedures and created the logging and monitoring solutions with Ansible.
- Automated a build with Terraform and Ansible to AWS and vCloud (VMware).
- Supported internal and external customers on multiple platforms and various Linux versions, including Red Hat Enterprise Linux (RHEL), OEL, SLES, and Ubuntu.
- Handled security hardening, keeping images and servers updated and patched.
- Used Nagios, Checkmk, Grafana, Zabbix, and Xymon for monitoring solutions.
- Utilized Bash, PHP, Python, and MySQL/MariaDB in scripting and automation.
- Rebuilt RHEL 7 both in the cloud and on-premises to RHEL 8 and RHEL 9 using Terraform and, when possible, the LEAPP tool.
Hosted Services and Linux Systems Engineer
Vodafone Group
- Rebuilt Vodafone's webmail platform using Ansible and created 50+ playbooks.
- Tracked and resolved the infrastructure and application-related issues.
- Maintained all the servers updated and regularly applied the security patches.
- Supported the Apache and NGINX web server infrastructure.
Project History
Rebuilding of the Webmail Platform Through Automation With Playbooks
NGINX Website Deployment
Creating Infrastructure for a New Application With DevOps Tools
Upgrading Legacy Server’s to Newer Versions of Red Hat With Automation
Planning and Implementing Quarterly Maintenance Patching
DevOps/System Administrator
• Performing Linux troubleshooting and optimization
• Investigating, troubleshooting, and ticketing network connectivity and ACL issues
• Maintaining and optimizing Ansible and Terraform automation
• Performing OS and application patching
Education
Associate Degree in Computer Programming
Forrai School - Budapest, Hungary
Certifications
Red Hat Certified Architect in Infrastructure
Red Hat
Red Hat Certified Specialist in Services Management and Automation
Red Hat
Red Hat Certified Specialist in Linux Diagnostics and Troubleshooting
Red Hat
Red Hat Certified Specialist in Containers
Red Hat
Red Hat Certified Specialist in OpenShift Administration
Red Hat
Red Hat Certified Specialist in Containers and Kubernetes
Red Hat
AWS Certified Solutions Architect
Amazon Web Services (AWS)
Red Hat Certified Engineer
Red Hat
Red Hat Certified System Administrator
Red Hat
Skills
Libraries/APIs
REST APIs
Tools
Ansible, Rocky Linux, Terraform, GitLab CI/CD, Red Hat Satellite, Nagios, Zabbix, Docker Compose, NGINX, VMware, Amazon EKS, GitLab, AWS CloudFormation, Amazon CloudFront CDN, Grafana, Checkmk, Check_MK, Jenkins, Varnish, AWS IAM, Amazon CloudWatch
Platforms
Linux RHEL/CentOS, Red Hat Enterprise Linux, Linux, CentOS, Red Hat Linux, Ubuntu, Linux CentOS 7, Ubuntu Linux, Amazon Web Services (AWS), CentOS 6, Unix, Docker, Windows, Amazon EC2, Kubernetes, OpenShift, Red Hat OpenShift, Apache2, Azure, Google Cloud Platform (GCP)
Languages
Bash, SQL, Python 3, PHP, HTML, Python, Go
Paradigms
DevOps, Automation
Storage
SUSE, MySQL Server, MySQL, Amazon S3 (AWS S3), Data Centers, Ceph, Datadog
Other
RHEL, System Administration, Linux Administration, SSH, Infrastructure, Incident Response, Infrastructure Automation, Infrastructure Monitoring, Monitoring, Containers, Ubuntu Server, Red Hat Certified Engineer (RHCE), Red Hat Certified System Administrator (RHCSA), BIND DNS, TCP/IP, DNS, IP Routing, Unix Shell Scripting, Podman, Shell Scripting, Infrastructure as Code (IaC), Configuration Management, Transport Layer Security (TLS), Site Reliability Engineering (SRE), Amazon RDS, Containerization, ITIL V3 Foundation Certified, Domain Name System (DNS), CI/CD Pipelines, IT Services, iSCSI, HAProxy, Argo CD, GitOps, Server Infrastructure, YUM, IT Project Management, Troubleshooting, Patch Deployment, Data Center Infrastructure, Bare-metal Environment, APIs, Networking, Virtualization, Cloud Networking
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