whoami
mario30k — Software developer and IT specialist. I build automations, integrations and reliable systems for companies that want to work smarter.
Less manual clicking, more work handled automatically. I build scripts, automations and CI/CD workflows that take over repetitive tasks: deployments, backups, reports, data synchronization and system administration.
I connect systems that should work together. I build integrations using APIs, webhooks and event-based workflows. I help connect CRMs, ERPs, payment providers, spreadsheets, internal applications and external services into one reliable process.
Stable infrastructure that can be rebuilt and maintained with confidence. I configure servers, containers, reverse proxies, SSL certificates, DNS, backups, monitoring and deployment workflows — on a VPS, in the cloud or on your own infrastructure.
See problems early, before they become outages. I set up metric and log collection, dashboards and alerts via email, Telegram or Slack. This helps you notice errors, performance drops and unusual system behavior faster.
Clean access, safer configuration and backups you can trust. I help secure servers and applications through system hardening, configuration reviews, access and key management, backup setup and real restore testing.
Technical support without call centers or corporate confusion. I support small companies, projects and systems with maintenance, fixes, small improvements, technical consulting and clear explanations of technical decisions.
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| step | what happens |
|---|---|
| 01_talk | We start with a short conversation. You explain the problem, what should work better and what you expect. I help turn that into a clear technical solution. |
| 02_delivery | We agree on the scope, timeline and cost — clearly, with no small print. Then I build the solution step by step and show progress along the way. |
| 03_handover | You receive a working solution, documentation and a short handover. If needed, I can also help with maintenance, fixes and further development after launch. |
| area | what's in use |
|---|---|
| backend | Java, Python, Node.js, gRPC, REST APIs |
| frontend | TypeScript, HTML/CSS, responsive UI |
| data | PostgreSQL, Redis, Kafka, Apache Flink |
| infra | Linux, Docker, nginx, Caddy, Proxmox |
| ops | Grafana, Prometheus, ELK, GitHub Actions, Ansible |
▸ this isn't a full inventory — it's what I reach for most often. I pick the tool for the job, not the other way around.
Schengen border crossing system. Contributed to a centralized EU border management platform that records entry and exit movements of non-EU travelers across Schengen external borders, supporting secure and compliant border operations.
Real-time stream processing and anomaly detection. Built and maintained scalable Kafka and Apache Flink pipelines for processing high-volume log data in real time. Designed anomaly detection logic to surface security-relevant irregularities and improve operational visibility.
Real-time trading risk engine. Contributed to a banking risk engine focused on real-time trading data processing. Integrated external Kafka brokers, adapted data model formats, supported the transition to microservices, and packaged the platform for cloud and on-premise environments.
I usually reply the same working day. The more specific your description, the sooner I can tell you what and how.
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