Responsible for building and operating scalable infrastructure supporting a cybersecurity intelligence platform processing large volumes of internet telemetry and threat intelligence data. Focus on reliability, observability, and performance optimization across distributed production systems.
Key responsibilities:
Led the implementation of a modern, highly available Linux infrastructure in a greenfield environment during a corporate carve-out. Built core operational capabilities including monitoring, automation, and hybrid cloud integration to support rapidly scaling production systems.
Key Responsibilities:
20 years of experience designing, operating, and scaling reliable environments. Strong focus on automation, observability, and high-availability. Experienced in diagnosing and resolving complex issues.
Founder of an IT services company recognized by Clutch as one of the top cybersecurity and managed IT services providers in Poland.
Continuously developing expertise and tracking emerging technologies.
Ubuntu, Debian, Red Hat Enterprise Linux, Oracle Linux, SuSE, HPC, slurm, OpenMPI
Grafana, Prometheus, Loki, Pyroscope, Tempo, Faro, Alloy, Zabbix, OpenTelemetry, Logstash, Kibana
MySQL, MariaDB, Percona, PostgreSQL, Elasticsearch, ClickHouse, Redis, MongoDB
Terraform, Ansible, Shell Scripting, Github Actions, Jenkins, Red Hat Sattelite
Docker, Kubernetes, OpenShift
Microsoft Azure, AWS, Proxmox, VMware, OLVM
Fibre Channel, iSCSI, GlusterFS, ZFS, Ceph, Lustre, Veeam, Bacula & Bareos, Proxmox Backup Server, XtraBackup
TCP/IP, Ethernet, RDMA, RoCE, Infiniband, HAProxy, iptables, ebtables, tcpdump, wireshark
Founded Angry Bytes in 2013 as a freelance Linux administration practice that evolved into an international managed infrastructure and cybersecurity services provider serving clients across Europe, the United States, and Japan. Combined executive leadership with hands-on infrastructure engineering, delivering secure and scalable environments for diverse production workloads. The company was recognized by Clutch as one of the leading cybersecurity and managed IT services providers in Poland for three consecutive years.
Key Responsibilities:
Joined Demandsphere, a search analytics platform tracking over 40 million keywords across multiple search engines. Progressed from Senior DevOps Engineer to DevOps Team Lead, leading major infrastructure redesign and large-scale data migrations to improve system stability, performance, and operational efficiency.
Key Responsibilities:
- •Linux Administration (RHEL, Ubuntu, SUSE, Oracle Linux)
- •Troubleshooting and performance analysis across hardware, network, kernel and application levels
- •Security hardening and auditing
- •Advanced system performance tuning and capacity planning
- •Lifecycle ownership and zero-downtime upgrade strategy
- •Hybrid infrastructure (bare metal, private cloud, public cloud)
- •VMware and Proxmox virtualization
- •AWS and Azure cloud environments
- •Datacenter networking and large-scale server deployments
- •Hybrid cloud and on-prem integration
- •Resilience and failure-domain design
- •Production-grade standardization
- •End-to-end observability architecture across hardware, network, OS and software layers
- •Grafana-based observability stacks (metrics, logs, traces, frontend)
- •Telemetry instrumentation with OpenTelemetry
- •Cross-layer signal correlation
- •Alerting strategy focused noise reduction
- •Infrastructure as a Code with Terraform
- •Configuration automation using Ansible
- •Deployment automation and environment reproducibility
- •CI/CD pipeline integration
- •Containerized workloads using Docker
- •Kubernetes and OpenShift operations
- •Distributed service architecture
- •High-throughput systems integration
- •Production incident management in large distributed environments
- •PostgreSQL large-scale cluster operation
- •MySQL, MariaDB, and Percona operation
- •Query optimization and large dataset performance tuning
- •Data reliability, backup strategies, and operational resilience
Responsible for development and operation of server infrastructure supporting a cloud-based parental control service deployed inside ISP datacenters. The platform relied on transparent proxy servers analyzing up to 10 Gbps of network traffic in real time to filter and block access to adult content.
Technology Stack: Gentoo Linux, LAMP stack, Proxmox, Zabbix, Memcached, Squid, Dell servers, Fibre Channel, iSCSI, Brocade switches
Responsible for server performance optimization at the largest Polish social network at the time, during a period of rapid user growth. Focused on improving scalability and stability of the production infrastructure supporting the platform’s core services. Through systematic performance tuning and infrastructure improvements, the environment was scaled to handle approximately 800,000 concurrent users by the end of the engagement.
I'm founder and organizer of a neurodivergent-focused online community designed as a safe, structured, and sustainable space for peer support and social interaction.
Scope and impact:
This role combines community governance, moderation, facilitation, and long-term operation of a highly active online space.
Board member and volunteer coordinator of the moderation team for one of the largest (40k members at that time) Polish-language support communities for adults with ADHD
This role required strong communication, emotional intelligence, and the ability to make balanced decisions in high-emotion situations, while maintaining clear boundaries and consistent rules.
Outside of work, I’m deeply engaged in technology, creativity, and the culture of the internet.
I’ve been living on the internet since the mid-90s, with a deep technical and social understanding of how online ecosystems evolve. I care about digital culture, decentralization, online governance, and I'm deeply concerned about the direction the web is heading.
I’m an active photographer, sharing my work under open licenses. Some of my photos have been used by media outlets and public institutions, appearing on government websites and platforms reaching millions of viewers. I strongly believe in open access, knowledge sharing, and the long-term value of contributing to the commons.
I also enjoy hands-on DIY projects - 3D printing, designing practical everyday objects and gadgets, and building small hardware projects using ESP32, Arduino, and Raspberry Pi. I like understanding how things work, from low-level systems to physical devices.
And yes - I’m unapologetically nerdy: LEGO, sci-fi literatures, board and video games, and a carefully curated vinyl collection.