Omid Estaji

DevOps Engineer

Omid Estaji Picture

DevOps Engineer with nearly a decade of experience building and operating reliable infrastructure in enterprise environments, including 1,000+ servers. Strong in Linux, cloud technologies, automation, and Python, with experience designing highly available architectures and maintaining CI/CD pipelines and critical services in close collaboration with development teams. I use generative AI and AI-assisted workflows to speed up troubleshooting, automation, documentation, and development. A self-driven learner with strong troubleshooting skills and a keen interest in security, software engineering, and open-source technologies. Feel free to explore my work or reach out to connect and collaborate.

Technical Skills

· Linux, iptables, AppArmor, Seccomp, Capabilities [OS and hardening]

· Ansible, Terraform, Cloud-init, Rundeck, Semaphore UI [IaC, Configuration management and automation]

· Kubernetes, Docker, Helm Chart, Kustomize, Rancher, EKS [Container orchestration and containerization]

· Jenkins, Gitlab, Git, Argo CD [CI/CD and GitOps]

· Prometheus - Grafana, Sentry, GlitchTip, PRTG [Monitoring and error tracking]

· Fluent-bit/Fluentd - Loki - Grafana (LFG stack), Elasticsearch - Kibana - Logstash - Beats (ELK stack) [Logging]

· AWS (AWS Cloud Practitioner), Proxmox, MAAS [Cloud and virtualization]

· HAProxy, Nginx, Traefik, Keepalived (VRRP), Consul [HA, load balancing and service mesh]

· Bash/Shell, Python, Django, DRF, Go [Scripting and programming]

· PostgreSQL, MySQL, MariaDB, ClickHouse, MongoDB, MaxScale [Database and DB proxy]

· Redis, Kafka, RabbitMQ [Message broker]

· Longhorn, MinIO, RustFS, Garage [Storage]

· Sonatype Nexus, Zot, Gitea, Trivy, Notary Notation [Repository and artifact management]

· HashiCorp Vault, Keycloak [Identity and secret management]

· Microservice architecture, Agile, 12-factor methodology, Cloud Native [Software engineering]

· Cisco (CCNA R&S - CCNA Sec), PfSense (CEH - Security+), MikroTik (MTCRE - MTCNA), Active Directory (MCSE 2012), Issabel VoIP, Passive networking [Network administration]

· Bootstrap, HTMX, HTML, CSS [Web development]

· DirectAdmin, cPanel, Plesk [Control panel]

· WordPress, Prestashop [CMS]


Experiences

DevOps Engineer

December 2023 - Present
Tehran
Tara logo  Tara

- Architected, implemented, and managed production-grade Kubernetes clusters based on RKE2 (Rancher).
- Migrated Spring Boot, Python, and Nodejs applications from virtual machines to Kubernetes clusters and developed their helm charts.
- Designed and implemented Argo CD to enable GitOps-based application deployments on Kubernetes.
- Dockerized Java, Python, Node.js, and PHP/Laravel applications, reducing image sizes and build times.
- Designed and configured high-available services, including MinIO cluster, Redis Sentinel, MariaDB Galera Cluster using MaxScale, HAProxy+Keepalived, etc.
- Enhanced and optimized CI/CD pipelines for multiple applications, ensuring faster deployment and higher reliability.
- Administered and maintained servers, services, and databases, also ensured their security.
- Automated tasks using Bash scripts, Ansible playbooks, and Rundeck jobs.
- Researched and developed various technologies and tools and documented them.
- Maintained monitoring and logging stack and developed PromQL queries and alert rules.
- Collaborated with software developers and teammates to improve pipelines, product life cycle, and procedures.

Linux System Administrator

November 2020 - August 2023
Remote / 2 yrs. 10 mos.
Parspack logo  Parspack

- Administered 1000+ Debian-based and Redhat-based Linux servers in an IaaS and cloud service provider.
- Configured and maintained various services on Linux servers such as web servers (LAMP and LEMP stacks), databases, mail servers, firewalls, FTP servers, DNS servers, DHCP servers, proxy servers.
- Administered virtualization technologies such as KVM, Proxmox.
- Trained 6+ new colleagues as morning shift trainer and assisted in the onboarding process.
- Automated tasks using Bash/Shell scripts, and Python scripts.
- Solved various CDN issues as head of the CDN support team about caching, CDN edge servers, WAF, Anti-DDoS, etc.
- Monitored servers and services using PRTG, SolarWinds and responded to incidents, and maintained a 99.99% server uptime.
- Administered hosting control panels such as cPanel, DirectAdmin, Plesk, CWP.
- Fixed technical issues and responded to users' problems through the ticketing system.
- Provided appropriate technical solutions to 360,000+ users.
- Collaborated and reported various cases with colleagues in different teams of the company, such as the product team.
- Documented support team guidelines, project documents, and learning resources on Confluence.
- Administered and configured some services on Windows servers such as IIS, SQL server, MailEnable.

Network Help Desk

September 2019 - November 2020
Tehran / 1 yr. 3 mos.
 Mandatory military service

- Administered Active Directory and Windows server services such as Print server and File sharing.
- Administered Cisco network devices.
- Provided technical assistance to 200+ users and cut down paperwork by 75%.
- Supported systems, network, hardware, and software issues in a timely and professional manner.
- Maintained network devices such as switches and routers, racks, etc.
- Implemented passive network.

IT Administrator

September 2016 - May 2020
Tehran, Iran / 3 yrs. 9 mos.
Pixel Group logo  Pixel Group

- Administered Active Directory and Windows server services such as Hyper-V, RemoteAccess, DNS, File sharing.
- Configured Cisco, Mikrotik (RouterOS), and Ubiquiti network devices and operated QoS.
- Administered VoIP IP PBX (Elastix).
- Monitored servers and network resources using PRTG and maintained a 99% server uptime.
- Designed and configured VPNs and tunnels between 5+ offices and store branches.
- Administered server, host(DirectAdmin), domain, CDN and CMSs(Prestashop, Magento, WordPress) of 3+ websites including: www.Pixel.ir and www.iPhonechi.com.
- Developed Python scripts for projects.
- Led IT projects including E-mail marketing campaigns, and redesigning network architecture, and saved 30% of the annual budget.
- Negotiated with 10+ service providers.
- Researched and developed a varied range of systems, technologies, and tools such as competitor price monitoring tools.
- Administered network and systems security (Hardening) and solved cyber threats like DDoS attacks.
- Counseled the CEO and supported 30+ personnel in IT-related issues.
- Assisted in SEO projects such as Google Analytics and Google Search Console management.
- Administered NVRs and IP cameras.
- Assembled computer hardware and installed computer software.
- Implemented and maintained passive network.

Junior Technical Support

September 2015 - March 2016
Tehran / 7 mos.
Bertina logo  Bertina

- Solved web hosting (host, domain, scripts, SSL certificates, etc.) issues.
- Administered hosting control panels such as DirectAdmin, Cpanel, WHM, Plesk, CWP, Webmin, and WebsitePanel.
- Configured and maintained various services on Windows servers such as IIS, hMailServer, SmarterMail, FTP server, Firewall, etc.
- Maintained email services and configured SPF, DKIM, etc.
- Configured Apache and Litespeed web servers using .htaccess.
- Supported WordPress, Prestashop, and Joomla websites.
- Administered Mysql and MS SQL databases and Phpmyadmin.
- Maintained periodic onsite and offsite backups.
- Supported 200,000+ clients through WHMCS (ticketing system), phone, and chat.
- Proposed suitable solutions for clients' businesses.

Network Engineer Internship

July 2015 - June 2015
Karaj / 2 mos.
Mapna Group logo  Mapna Group

- Maintained network devices such as Cisco switches and routers, network racks, etc.
- Implemented passive network using Ethernet cables, RJ45 connectors, patch cords, etc.


Educations

MSc. Software Engineering

2016 - 2018
Ershad Damavand university

-Grade: 17.86/20
-A+ Grade in MSc Thesis
-Paper and a software about "IoT Network Based Attacks Through Direct Cloud Synchronization (DCS)"
-Paper about "Performance security and safety in information, database and networking systems: case study intrusion detection and prevention"
-Paper about "Aspects of Human Factors in Software Testing"

BSc. Information Technology Engineering

2013 - 2016
Ershad Damavand university

-Grade: 17.05/20
-Ranked 1st among Graduate Students after 8 semester
-Paper about "SSL Certifications"


Languages

English

Full professional proficiency

Persian

Native or bilingual proficiency


Recommendations

from

I had the opportunity to work closely with Omid at Tara, where he proved to be an exceptionally reliable and skilled DevOps engineer. He consistently delivers every task with precision, ownership, and a level of commitment that is truly rara. Whenever Omid takes responsibility for something, you can trust that it will be completed at the highest standard. His dedication, calm attitude, and positive energy make working with him both productive and enjoyable. I fully recommend Omid for any DevOps role - he is a true asset to any technical team.
Date Received on LinkedIn: Feb. 25, 2026

I had the pleasure of working with Omid for about a year, during which we collaborated closely he as a DevOps Engineer, and I as a Database Administrator. Throughout this time, Omid consistently demonstrated deep technical expertise, particularly in Kubernetes, containerization, CI/CD, and infrastructure automation. What truly sets Omid apart is not just his technical proficiency, but his remarkable sense of responsibility and commitment to the systems he manages. He is highly dependable, always available when needed, and takes ownership of challenges with care and dedication. Working alongside him gave me a sense of confidence and peace of mind, knowing that the infrastructure was in good hands. Omid is also a great team player who communicates effectively with developers and other team members. His ability to research, implement, and document complex solutions has been invaluable to the team’s success. I wholeheartedly recommend Omid for any role that requires a skilled, reliable, and conscientious DevOps professional. He would be an asset to any organization.
Date Received on LinkedIn: June 27, 2025

As the colleague,I woud like to say Omid is very disciplined and talented.Also, he is realy responsible,hard-working and innovaitive that always plays key role in every project and knows how to handle difficult situations by the use of tact.Im sure he would be valuable member for every company.
Date Received on LinkedIn: Dec. 4, 2024

Omid used to be an introvert who turned into a great communicator. He acts with inner calm and is a fabulous listener. When it comes to being a volunteer in investigating, grasping, and sharing knowledge, Omid is the first guy in the queue. His thirst for growth is insatiable. I can see he will touch above and beyond with the tools he belongs in his arsenal.
Date Received on LinkedIn: July 30, 2024

I am delighted to provide an endorsement for Omid, a highly skilled Linux and tech professional with exceptional powers of observation. Omid consistently demonstrates an astute understanding of complex technical concepts and possesses a keen eye for detail. His ability to observe and analyze situations enables him to identify potential issues and devise effective solutions. His dedication to quality and his passion for staying updated with the latest industry trends make him an invaluable asset to any team. I confidently recommend Omid for his exceptional observation skills and his ability to contribute innovative ideas to any project in the Linux and tech domains.
Date Received on LinkedIn: Aug. 21, 2023

I had the pleasure of working with Omid as a Linux administrator for a while. He was an invaluable asset to our team and always demonstrated that he was the go-to person in the team. he is reliable, diligent, and always willing to lend a hand to help his teammates. What really stands out about Omid's character is that he is extremely cooperative and is able to work efficiently in a synergetic manner. Everyone enjoys his friendly personality and his ability to get tough works done in a timely fashion. I highly recommend Omid as a Linux administrator. He is perfect for the role.
Date Received on LinkedIn: Feb. 16, 2023

During the time I have worked with Omid, I found him, a dedicated, persistent and very eager individual to learn new technologies and solving problems. I could always enjoy the peace of mind whenever I knew that Omid was going to work on an issue, because he would either find a solution or trying to build one.
Date Received on LinkedIn: Dec. 30, 2022

I know Omid since we were studying bachelor and I had a chance to work with him on a few projects. He is a hardworking, team-player and a good listener. I recommend Omid not only for his knowledge and technical skills but also for his personality and being calm under the pressure.
Date Received on LinkedIn: Dec. 28, 2022

Omid is talented, hardworking and purposeful person. He gets everything he wants and does not give up in front of problems. If he undertakes a task, he will do his best to deliver it with the best result. Also he is a good friend and team member.
Date Received on LinkedIn: Dec. 27, 2022

It’s rare that you come across colleague talent like Omid, I had the pleasure of working with Omid for two years at the ParssParva System Company, collaborating on several tasks. He is a swift learner, committed, and works cooperatively in the team. Also, he is excellent in terms of documentation. Omid would be an asset to any team.
Date Received on LinkedIn: Dec. 24, 2022

Omid is very focused on finding solutions .He provides high-quality support and ensures everything works. He is a dedicated team member and always in a good mood which ensures a good atmosphere in the team.He is very passionate about learning new technologies in It .He is curious and willing to learn.It was always nice to work with him.
Date Received on LinkedIn: Dec. 23, 2022

Ich arbeite seit mehr als 2 Jahren mit Omid zusammen. Wir haben an verschiedenen Projekten gearbeitet, insbesondere in Drucksituationen. Er kann jedes Problem in Linux-Umgebungen leicht lösen. Außerdem hat er einen offenen Geist und Kreativität. Er verfügt über vielfältige Kenntnisse in der Linux-Administration sowie über gute Programmierkenntnisse, insbesondere in Python. Außerdem kann er schnell neue Werkzeuge oder Technologien erlernen. Er ist eine zuverlässige Person und erledigt seine Aufgaben mit Genauigkeit. Ich kann ihn jedem Unternehmen empfehlen, das eine Person für Teams im Linux-Administration oder DevOps benötigt.
Date Received on LinkedIn: Dec. 23, 2022

Omid is a very talented & clever & social guy. I enjoyed being classmate with him. I learnt from him alot. He is very enthusiastic about learning different skills.He is motivated with great communication skills.
Date Received on LinkedIn: Dec. 23, 2022