Skills

  • programming languages: Go, Python, Bash, AWK, Perl, PHP, fluent in regular expressions,
  • Kubernetes & OpenShift: production experience with Kubernetes (microk8s multinode clusters, Azure Kubernetes Service), OpenShift platform management and operations,
  • Crossplane: developing and maintaining Crossplane providers (VMware vSphere), creating compositions for multi-cloud deployments, integrating with OpenShift,
  • cloud platforms: Azure Kubernetes Service (AKS), Amazon Web Services, VMware vSphere,
  • containerization & orchestration: Docker, Kubernetes, OpenShift, microk8s,
  • CI/CD: GitLab CI/CD pipelines, DevOps practices,
  • monitoring: developing monitoring software at global scale,
  • Linux administration: Debian, Ubuntu, RedHat/RHEL, Arch Linux, basics of Solaris and *BSD,
  • databases: PostgreSQL, MariaDB, Oracle, SQLite (administration and development),
  • messaging: RabbitMQ, MQTT protocol (Eclipse Mosquitto),
  • version control: git + GitLab (experience in managing on-prem GitLab instances),
  • networking: good knowledge of networking and popular network services,
  • IAM: authentication and authorization services, LDAP (openLDAP, Oracle Virtual Directory Server),
  • virtualization: VMware vSphere, KVM (libvirt),
  • web technologies: XML, XSLT, XPath, DOM, CSS, JQuery, React, Django,
  • datacenter: experience with Cisco UCS blade systems and Netapp storage.

Experience

  • 2016 - present - Atos/Atos R&D - software engineer/senior software engineer

    • multi-cloud native control plane based on Crossplane with preconfigured services:

      • bug fixing in provider-vsphere (VMware vSphere provider for Crossplane),
      • Keycloak: crossplane composition using k8s operator,
      • cert-manager: crossplane composition with Let’s Encrypt (DNS01 challenge via AzureDNS).
      • composition for VM deployment on OpenShift:
        • deployments from Crossplane running inside OpenShift,
        • deployments from Crossplane running remotely on Azure Kubernetes Service (AKS),
        • integrating VMware infrastructure with Kubernetes-native control planes.

    • automated software management tool for endpoints integrated into monitoring software:

      • complete system design,
      • stack: baremetal, VMWare vSphere, Ubuntu, microk8s,
      • backend with Publish-Subscribe pattern (RabbitMQ, Python, pika, SQLAlchemy),
      • mTLS with automated certificate management used as transport layer,
      • endpoint CLI tool in Go for cross-platform portability (developed with The Twelve Factors in mind, libraries: Cobra, Viper).

    • monitoring configuration tool modernization:

      • taking over in-house developed tool (legacy: Perl, Bash and Oracle Database),
      • bug fixing and performance improvements (Perl, Bash),
      • gradually rewriting to meet contemporary standards (Perl, Bash, Python),
      • lead developer role,
      • containerization with Docker,
      • creating CI/CD pipelines in GitLab and adopting agile/DevOps practices,
      • migrating from Oracle Database to PostgreSQL,
      • replacing Perl web-interface with React backed by Django REST API,
      • backend transition from Perl+Bash to Python.

    • other projects:

      • proof of concept for ML-powered anomaly detection in system metrics (Elastic Observability),
      • monitoring programs for ActiveMQ and PostgreSQL (both in Go),
      • various reporting programs combining data from multiple sources (Python),
      • numerous bugfixes and contributions across projects.

  • 2015 – 2016 – Atos - tooling engineer

    • service operations (as understood by ITIL, so standard changes, incident response, etc.)

  • 2015 – 2021 – administrator of radio broadcasting system in Radio Kultura:

    • deployment and maintenance of radio broadcasting and automation platform: Airtime,
    • designing and deployment of podcast distribution system (AWS’s Lambda, S3 and CloudFront),
    • deployment of SamBroadcaster software in radio’s emission studio.

  • 2012 – 2015 – software developer and operating system administrator, Datacenter of Casimir the Great University in Bydgoszcz:

    • created central authentication service for employees and students login.ukw.edu.pl:
      • integrated personal data from USOS, ERP and e-mail systems (Oracle database, MSSQL and internal LDAP systems),
      • exposed it as virtual LDAP directory (Oracle Virtual Directory),
      • used it to achieve single sign-on capability to most university systems,
      • automated process of requesting IT services for employees and students (it was done on paper before),
    • real fullstack: from datacenter hardware (including regular power and cooling inspections!), stand-alone servers, blade systems (Cisco UCS), storage arrays, through network (also fibre-optics, SAN and university-wide WiFi), virtualization (VMWare vSphere), operating systems (Linux, Solaris, *BSD), finishing with application administration including but not limited to scientific computation, databases, webservers, LDAP, mail servers and many more.
    • participating in public procurement processes for IT equipment (most notably Cisco UCS + NetApp systems, datacenter network, cooling and UPS systems),
    • support for vendors of Docusafe (electronic document circulation system) and Simple.ERP as system implementation specialist during deployment in the university’s datacenter.
    • support for students and employees and on-call duty.

  • 2011 – 2021 – administrator of radio broadcasting and recording system, Radio Uniwersytet,

    • deployment and maintenance of:
      • network (wired, wireless and virtual), physical servers, virtualization platforms (VMware vSphere changed later to Proxmox),
      • operating systems, webservers, databases,
      • applications: Wordpress, Airtime/LibreTime, Icinga2;
    • software development:
      • audio recording/archiving system with automated removal of copyrighted material (so recordings can be placed on the public Internet in accordance with broadcasting licence held by radio),
      • system for connecting reporters over the Internet and allowing them to work and broadcast together.

  • 2005 – 2009 – operating systems and network administrator, web developer, High School No 5 in Bydgoszcz:

    • network maintenance,
    • webmaster of High School’s webpage,
    • system administrator of Slackware Linux server:
      • webserver (LAMP stack),
      • mail (Postfix, Dovecot, SquirrelMail).

Certificates

  • Red Hat Certified System Administrator,
  • 2013: PRINCE2 Foundation,
  • 2013: ITIL Foundation.

Trainings

  • 2025: Certified Kubernetes Administrator (CKA) with Practice Tests
  • 2022: Perl for Python Developers,
  • 2020: Elastic Observability Engineer (Elastic NV),
  • 2019: Elasticsearch Engineer 2 (Elastic NV),
  • 2019: Kubernetes in AWS Cloud,
  • 2019: RedHat Openshift,
  • 2019: Domain Driven Design workshops,
  • 2017: RHEL7 RH255 Red Hat System Administration III, version 7 (RedHat)
  • 2016: Advanced Programming Techniques in Perl Language (Altkom Akademia),
  • 2015: Linux Academy (Atos IT Services Sp. z o.o.)
  • 2015: Government procurement in Poland: How to properly select non-price offer criteria,
  • 2014: Contemporary IT – possibilities and challenges in public cloud era,
  • 2013: VMware vSphere: Optimise and Scale v5.1 (VMware Education Services),
  • 2013: VMware vSphere: Install, Configure, Manage v5.1 (VMware Education Services),
  • 2013: Quality management in IT projects (Wielkopolska Szkoła Biznesu).

Extraprofessional activity

  • 2025: HackNation - app for detecting contraband in x-ray scans of vechicles crossing Polish border (pytorch) - 2nd place,
  • 2025: 8. Bydgoski Hackathon - app for detecting IoT security vulnerabilities for Z-wave and other no IP based networks - 1st place,
  • 2023: Poznan GO Devs #7 Shellowe pięści węża: biblioteki Cobra i Viper w natarciu (repository, slides) (public speaking),
  • 2020: Hackyeah – top 5 in Zero Waste category – project rewrap.it – app helping reusing packaging materials to reduce waste,
  • 2020: IV Bydgoski Hackathon – app to aid communication with elderly people – 3rd place,
  • 2020: started Inner Savages association (board member),
  • 2019: Hackyeah – Polish Armed Forces capture the flag – 23rd place,
  • 2019: III Bydgoski Hackathon – app for detecting empty parking spaces based on aerial drone footages – 3rd place,
  • 2018: Hackyeah: aggregating data from receipts using OCR and combining them with PKO BP bank data downloaded via the bank’s REST API, technologies used: Elasticsearch, Kibana, Django, Docker, Google Cloud Vision API,
  • 2018: II Bydgoski Hackathon – electronic billboard renting system – 1st place,
  • 2014: Poznańska Impreza Wolnego Oprogramowania: “Wolna Kultura w Radiu Internetowym” (public speaking).

Contact