Curriculum Vitae

Dominik Rosiek

📧 Email: 45dominik@gmail.com
📞 Phone: (+48) 794 941 152
📍 Location: Kraków, Poland
💼 LinkedIn: linkedin.com/in/drosiek
🌐 Website: drosiek.pl
📁 GitHub: macdewee, sumo-drosiek
🎫 CV in PDF: Dominik_Rosiek_CV.pdf

🧠 About Me

Experienced software engineer with a strong focus on networks, observability, infrastructure, and tooling. Passionate about writing high-quality, maintainable code and contributing to open source. I’m currently seeking a part-time opportunity (3–4 days per week) that provides meaningful work, a collaborative team, and strong engineering values. Financial compensation is secondary to team culture, project interest, and work-life balance.

💻 Technical Skills

Strong/Experienced: Kubernetes, Go, Python, Bash, Linux, Terraform, AWS, Helm, CI/CD (GitHub Actions)
Intermediate: C, C++, Rust, Ruby, Lua
Basic: Functional programming, UI/UX
Avoided Tech: JVM-based languages

🧠 Soft Skills

  • Excellent codebase memory & long-term project understanding
  • Strong analytical thinking and problem-solving mindset
  • High ownership and reliability in distributed teams
  • Open source contributor and proactive team member

💼 Work Experience

🛠️ Software Engineer — Sumo Logic

December 2019 – August 2024 | Remote/Kraków, Poland

Member of the Open Source Collection team. Core contributor to the Sumo Logic OpenTelemetry Collector and maintainer of the Kubernetes Helm Chart.

  • Regular contributor to the OpenTelemetry Collector Contrib project
  • Actively maintained the journald receiver and introduced key improvements to the filelog receiver
  • Fixed numerous critical bugs across multiple components, improving production readiness and stability
  • Developed and enhanced tooling for telemetry collection in distributed systems
  • Worked across the telemetry stack — logging, metrics, and tracing — ensuring reliability and performance
  • Hands-on with cloud-native environments (EKS, AKS, GKE, OpenShift), Terraform, and GitHub Actions
  • Daily development in Go, Python, Rust, Ruby, and Helm, with a strong focus on observability and data ingestion tooling
  • Frequently collaborated with internal teams and external contributors in the open-source ecosystem
  • Actively supporting customers

🐍 Python Developer — Collective Sense

August 2016 – November 2019 | Kraków, Poland

Focused on security and network-centric Python development, contributing to both internal and open-source projects. Key responsibilities included:

  • Building tools to manage/analyze open-source software
  • Scripting and automation in Ruby, Lua, Rust, Bash
  • Working across DevOps and networking domains
  • Publishing upstream contributions to open-source repositories
  • Participated in toolchain design for communication and security monitoring

🔐 Cybersecurity Intern — EY (Advanced Security Center)

September 2015 – February 2016 | Warsaw, Poland

Part of EY’s technical cybersecurity team, assisting with assessments and tool development within the Cybersecurity & IT Security Services department.

📱 Test Automation Intern — Samsung Electronics

July 2015 – September 2015 | Kraków, Poland

  • Developed Python automation for LTE device testing
  • Built test frameworks with Selenium WebDriver
  • Participated in Agile development workflows
  • Focused on efficiency improvements in test cycle

🌐 Software Developer — Veraprint Polska

October 2014 – June 2015 | Kraków, Poland

  • Full-stack web development in PHP, JavaScript
  • Maintained and deployed company websites
  • Server administration and tooling setup for PM systems
  • Agile methodology with small development team

💻 Intern Software Developer — Veraprint Polska

June 2014 – October 2014 | Kraków, Poland

  • Built and maintained internal PHP/JS applications
  • Assisted senior developers with full-stack features
  • Introduced minor server optimizations and deployments

🎓 Education

Master of Science in ICT (Information and Communication Technology Engineering) — AGH University of Science and Technology 2017 | Kraków, Poland

🧪 Open Source Contributions

  • Former active contributor to OpenTelemetry Collector Contrib, with work spanning bugfixes, receiver maintenance, and stability improvements
  • Former maintainer of journald receiver; contributor to filelog receiver
  • Consistent focus on improving production reliability of open source observability tools
  • sumo-drosiek

🕒 Availability

Seeking a part-time (50–80%) remote position (preferred), but open to full-time opportunities. Prefer long-term collaboration with a well-aligned engineering team.

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