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I design and build scalable, resilient and secure systems — from small environments to infrastructures with hundreds of thousands of users.
- Design and build infrastructure (on-premise, hybrid, distributed)
- Create fault-tolerant systems and automate operations
- Reduce incidents, optimize performance and eliminate manual work
- Build real products (SaaS, Web3, monitoring, security)
I don’t just design systems — I solve problems.
Production systems used in real environments.
Distributed storage platform based on IPFS clusters
→ https://github.com/jowy81/pinarkive-overview
Modular SaaS platform for logistics and traceability
→ https://github.com/jowy81/0xvera-trace-overview
Production-ready remote monitoring and management for Linux
→ https://github.com/jowy81/rmm-system-overview
Email security and DMARC reporting system in production
→ https://github.com/jowy81/dmarc-warden-overview
Hybrid exchange infrastructure running on mainnet
→ https://github.com/jowy81/daletdex-overview
Systems & Infrastructure
Linux · Windows Server · Virtualization (Proxmox, Hyper-V, VMware ESX) · On-premise · Hybrid infra · Networking · DHCP · Active Directory
DevOps & Automation
Docker · Docker Swarm · Compose · Bash · PowerShell · CI/CD · n8n · Automation workflows · System orchestration
Monitoring & Operations
RMM · Remote execution · Incident reduction · Self-healing systems · Alerting · Infrastructure monitoring
Security & Email
System hardening · Fail2ban · Access control · Attack surface reduction · DMARC · Email security · TLS-RPT · BIMI
Backend & Product Engineering
TypeScript · Node.js · Python · Go · Express · NestJS · Django · REST APIs · OpenAPI · PostgreSQL · MongoDB · Redis
Frontend & Apps
React · Vite · Nuxt · Android
Web3 & Distributed Systems
Solidity · Rust · Plutus · EVM · non-EVM chains · dApps · Smart contracts · IPFS · IPFS Cluster · Mainnet systems
Business & Leadership
Project management · Team leadership · Technical decision-making · Product execution · Client infrastructure design
Public and private sector
Systems ranging from:
- small environments
- to large-scale infrastructures (+500k users, +20k servers)
Architecture, automation and real-world problem solving.
Focused on eliminating manual work:
- n8n workflows
- system orchestration
- automated deployments
Secondary activity.
2 wins. ETHGlobal - Buenos Aires 2025 and others.
No design. No fluff.
I build systems that work.
I focus on execution, reliability and long-term maintainability.
No overengineering. No unnecessary complexity. Just systems that work.
- Project inquiry (Tally) — infrastructure, automation, systems