Senior DevOps & Platform Engineer with 18+ years of experience designing, modernizing, and operating high-traffic distributed systems. Proven track record leading infrastructure transformation initiatives from legacy VM-based platforms to containerized Kubernetes/OpenShift environments using GitOps and Infrastructure as Code.
Strong focus on reliability engineering, automation, developer enablement, and scalable system design. Experienced in bridging backend engineering and platform operations to deliver secure, observable, and production-grade systems across enterprise and high-growth environments.
Growing focus on AI integration: building MCP servers and agentic workflows for internal developer tooling, RAG pipelines over internal documentation, and production systems using embeddings and AI/LLM-based integrations.
Attila Szalay
Senior DevOps & Backend Engineer
E-mail: dzsubek@dzsubek.hu
LinkedIn: https://www.linkedin.com/in/dzsubek/
GitHub: https://github.com/dzsubek
Professional Summary
Core Competencies
AI & LLM Integration
Model Context Protocol (MCP) Servers, Agentic Workflows, RAG Pipelines, Embeddings, AI/LLM APIs
Cloud & Container Platforms
Kubernetes, OpenShift (OCP), Docker, Podman
Infrastructure as Code & GitOps
Terraform, Helm, ArgoCD, Ansible, Chef
CI/CD & Build Systems
Tekton, Jenkins, GitHub Actions, Maven, Ant, IBM EWM/RTC
Observability & Reliability
Prometheus, Grafana, Instana, Monitoring & Alerting Design
Languages
PHP, Go, Python, Bash, Java
Databases & Messaging
MySQL, RabbitMQ, Memcache, Redis
Architecture & Practices
Microservices, Distributed Systems, REST APIs, SOAP, Agile Methods
Professional Experience
Founder / Full Stack Developer (Side Project)
Olvastad.hu — AI-powered Hungarian news aggregator | 2026 - Present
Designed and built a commercial Hungarian-market news aggregator from scratch, with deep AI integration at its core. RSS ingestion pipeline scores article importance with an LLM across multiple providers with fallback, generates embeddings for same-story clustering and hot-topic detection. Single Go binary architecture with MariaDB, queue-driven background workers. Go MariaDB React Embeddings Docker Git LLM Gemini/Google AI dev Claude
Senior DevOps Engineer / Platform Engineer
IBM Engineering Lifecycle Management | 2022 - Present
In this role, I focus on modernizing and operating complex enterprise build and infrastructure systems. Led the containerization of a complex enterprise build system, enabling scalable, reproducible environments on Kubernetes/OpenShift and reducing infrastructure drift. Designed and implemented GitOps-driven infrastructure provisioning (Helm, ArgoCD), eliminating configuration drift and improving deployment consistency across environments. I collaborate closely with development teams to align platform capabilities with product lifecycle requirements. I continuously improve reliability and system stability through monitoring, automation, and proactive problem-solving. Built an MCP server exposing our build systems to LLM agents, powering an agent-mode workflow that automatically analyzes build results to find the root cause of build failures. Created a RAG pipeline over our internal documentation to give engineers and agents fast, grounded access to institutional knowledge. MCP Claude Claude Code RAG Docker Podman Kubernetes OCP Tekton Terraform Helm ArgoCD Prometheus Grafana LAMP Git Python Bash Java Maven Eclipse Ant Ansible Linux Instana IBM Cloud IBM ELM/EWM Scrum SAFe
Senior Backend Engineer / DevOps Engineer
IBM Budapest Lab (former Ustream Inc.) | 2010 - 2022
Architected and developed high-availability backend systems of payment, accounting, and subscription services supporting high-load traffic for global users. Designed and maintained RESTful APIs with clean architecture principles, emphasizing scalability and extensibility. Championed microservices adoption, decomposing monoliths to services with proper API contracts, logging, and fault tolerance. Served as key contributor for transition the organization toward containerization and orchestration, laying groundwork for future Kubernetes adoption. PHP Go Docker Kubernetes Terraform Helm Prometheus Grafana MySQL Chef PHPUnit Behat CI/Jenkins LAMP SOA PayPal Zuora OSB Symfony Silex Memcache Rabbit MQ SOAP REST SVN Git Scrum Kanban
Full Stack Web Developer
Freelancer | 2009 - 2010
Worked with several small media agencies delivering custom web solutions (from microsites to complex webshops with integrated depository records) and applications. My long term client was the gal6.com which is a complex round based strategy game. PHP MySQL MSSQL CSS HTML JavaScript Symfony 1.4 Symfony 2 LAMP E-commerce Memcache SVN Git
Full Stack Web Developer
arukereso.hu | 2008 - 2009
arukereso.hu is the leading price comparison site in Hungary and some other Eastern European countries. arukereso.hu is a member of the Naspers Group. We worked in cross functional teams and with cross functional members. Developed and maintained backend systems (from site backend to daily scripts which processing millions of records daily) and frontend issues. PHP MySQL CSS HTML JavaScript PayPal E-commerce LAMP Memcache SVN CVS
Full Stack Web Developer
PolePosition | 2005 - 2008
PolePosition (former First Class Group Ltd.) is a web media agency. I started here as a junior web developer. We made many different websites, webshops and intranet management applications for many different customers. Promoted to Lead Developer, managing a team of five engineers. PHP MySQL CSS HTML JavaScript E-commerce
Certificates
Building with the Claude API — Anthropic, Jun 2026
Claude Code in Action — Anthropic, Jun 2026
Introduction to Model Context Protocol — Anthropic, Jun 2026
Introduction to Agent Skills — Anthropic, Jun 2026
Introduction to Subagents — Anthropic, Sep 2026
Education
Óbuda University
Legal successor of Budapest Tech | 2006 - N/A
Petrik Lajos Technikum
Computer Network Programmer | 2004 - 2006
Hungarian Education ID: OKJ 54 4641 05
ISCED: 4CV