Experienced DevOps/SRE and Linux Specialist with over 20 years in IT. Expertise in cloud automation, containerization, and monitoring solutions. Strong background in infrastructure deployment, technical support, and automation of internal systems. Proficient in a wide range of technologies, including Docker, Terraform, Prometheus, Ansible, and more. Passionate about continuous improvement and problem‑solving in complex systems.

Contact
Profile Picture of Adrián Moreno (@zetxek), working side by side with a colleague: sitting on a desk, while looking at a screen

Who am I?

I am a DevOps / SRE Engineer with a strong background in infrastructure, cloud platforms, and high-availability systems, combined with extensive experience in technical support, systems administration, and customer-facing engineering roles.

My career spans over 20 years in IT, starting from hands-on roles in system administration, networking, and field engineering, progressing through team leadership positions, and later transitioning into cloud automation, reliability engineering, and DevOps practices.

From 2019 to 2023, I worked as a Presales Engineer and Product Consultant, collaborating closely with customers to design technical solutions, deploy test environments, perform infrastructure audits, and support complex integrations via APIs and SDKs. This role strengthened my ability to translate business and customer needs into technical architectures.

Between 2023 and 2024, I worked as an SRE Engineer at Nebius (ex-Yandex), focusing on cloud automation, Kubernetes-based systems, infrastructure provisioning with Terraform, observability, and internal platform reliability.

Currently, I am the founder and DevOps / SRE Engineer of an independent practice based in Belgrade, working with telecom and IPTV companies. I design, automate, and operate streaming and media infrastructures, with a strong focus on observability, incident response, and infrastructure scalability.

My core expertise lies at the intersection of infrastructure automation, system reliability, and complex production environments.

About Me

Skills

Programming Languages
Python, Bash, Go, LaTeX, Sql, Lua
Methodology
Aglie, Scrum, Kanban, ITIL
Python stack
Flask, FastAPI, JiraAPI
Automation Tools
Ansible, Gitlab CI/CD, Packer, Terraform, Hugo, Prometheus, Logstash, Kibana, Grafana, Zabbix
Operation Systems
Linux, MS Windows, MacOS

Experience

I am a DevOps / SRE Engineer with over 20 years of experience in IT, specializing in infrastructure automation, cloud platforms, and high-availability production systems. My career began with hands-on roles in system administration, networking, and field engineering, evolved through customer-facing and leadership positions, and later shifted toward cloud automation, reliability engineering, and DevOps practices. I have worked as a Presales Engineer and Product Consultant, translating business and customer requirements into technical architectures, and as an SRE Engineer at Nebius (ex-Yandex), focusing on Kubernetes-based platforms, Terraform-driven infrastructure, and observability. Currently, I run an independent DevOps / SRE practice in Belgrade, designing and operating streaming and media infrastructures for telecom and IPTV companies, with a strong emphasis on reliability, observability, incident response, and scalable system design.

Certificates

Well-Architected Proficient
Well-Architected Proficient
issued by Amazon Web Services Training and Certification
Issued Feb 24, 2025
AWS Knowledge: Cloud Essentials - Training Badge
AWS Knowledge: Cloud Essentials - Training Badge
issued by Amazon Web Services Training and Certification
Issued Feb 19, 2025
LFS162: Introduction to DevOps and Site Reliability Engineering
LFS162: Introduction to DevOps and Site Reliability Engineering
issued by The Linux Foundation
Issued Feb 10, 2025
LFS151: Introduction to Cloud Infrastructure Technologies
LFS151: Introduction to Cloud Infrastructure Technologies
issued by The Linux Foundation
Issued Feb 10, 2025
LFS256: DevOps and Workflow Management with Argo
LFS256: DevOps and Workflow Management with Argo
issued by The Linux Foundation
Issued Feb 11, 2025
LFD259: Kubernetes for Developers
LFD259: Kubernetes for Developers
issued by The Linux Foundation
Issued Feb 11, 2025
Multicloud Network Associate
Multicloud Network Associate
issued by Aviatrix
Issued Feb 13, 2025
Expires Feb 14, 2028
LFS158: Introduction to Kubernetes
LFS158: Introduction to Kubernetes
issued by The Linux Foundation
Issued Feb 19, 2025
LFS157: Introduction to Serverless on Kubernetes
LFS157: Introduction to Serverless on Kubernetes
issued by The Linux Foundation
Issued Feb 19, 2025
LFEL1009: Getting Started with OpenTofu
LFEL1009: Getting Started with OpenTofu
issued by The Linux Foundation
Issued Feb 23, 2025
LFS207: Linux System Administration Essentials
LFS207: Linux System Administration Essentials
issued by The Linux Foundation
Issued Feb 25, 2025
LFEL1011: OpenAPI Fundamentals
LFEL1011: OpenAPI Fundamentals
issued by The Linux Foundation
Issued Jan 17, 2026
LFS148: Getting Started with OpenTelemetry
LFS148: Getting Started with OpenTelemetry
issued by The Linux Foundation
Issued Jan 17, 2026

You can check all certificates at https://www.credly.com

Proven skills by certificates

AWS Well-Architected Tool, AWS Well-Architected Framework, AWS Well-Architected, AWS Cloud Best Practices, AWS, Amazon Web Services (AWS), AWS storage, AWS Security, AWS Networking, AWS Databases, AWS Compute, AWS Cloud, Site Reliability Engineering, Kubernetes, IAC, DevOps, Containers, CI/CD, Cloud Computing, SRE, PaaS, Serverless, Service Mesh, Virtualization, Cloud Infrastructure, Docker, IaaS, IoT, Argo Events, Argo CD, Event-driven Architecture, Continuous Integration, Continuous Delivery, Container Orchestration, Argo Workflows, Argo rollouts, ConfigMaps, Volumes, Software Developer, Secrets, Python, Orchestration, Multi-Cloud, Terraform, Oracle Cloud Infrastructure Networking, Multi-Cloud Network Architecture, Multicloud, Google Cloud Platform Networking, Cloud Security, Cloud Operations, Cloud Networking, Cloud Infrastructure Security, Cloud Engineer, Cloud Architecture, Azure Networking, Troubleshooting, Minikube, Microservices, Ingress, Community, Volume Management, OpenFaaS, Open Source, Infrastructure Provisioning and Management, Infrastructure As Code, Red Hat, Debian/Ubuntu, Disk Partitioning, Dpkg, Filesystem Hierarchy Standard, Git, Linux, Linux Administrator, Logical Volume Management, Package Management Systems, Apt, RPM, Site Reliability Engineer, YUM, Zypper, API Design, OpenAPI tooling, OpenAPI, design-first, code-first, API Lifecycle, OpenTelemetry, Observability, Jaeger, Distributed Tracing, Prometheus

Education

2020-Present
Russian All-State Social University
Master of Science in Computer Science (MSCS), In progress
2006-2008
Moscow Pedagogical State University
Master of Science in Sociology (MS in Sociology), Sociology
2002-2006
Moscow Pedagogical State University
Bachelor of Science in Sociology (BS), Sociology

Contact

Phone Number

+381 (62) 143 49 32

Email

still.ru@gmail.com

Address

Ustanička
11050, Beograd, Serbia