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Security Engineer
  • Warsaw
Security Engineer
Warszawa, Warsaw, Masovian Voivodeship, Polska
Sii Sp. z o.o.
4. 7. 2025
Informacje o stanowisku

technologies-expected :


  • C++
  • Linux
  • Python
  • Go

technologies-optional :


  • Docker
  • Kubernetes

about-project :


  • We are looking for a Security Engineer to join our banking client’s team. In this role, you will collaborate closely with software and infrastructure engineers to protect large-scale distributed systems and critical infrastructure. This is a unique opportunity to apply penetration testing and security consulting expertise in a dynamic, high-impact environment within the financial services industry. You will be expected to work on-site in the Warsaw office at least three days a week.

responsibilities :


  • Conduct penetration tests and vulnerability assessments on distributed systems built in C++, Python, and Go
  • Analyse and exploit vulnerabilities in containerized environments (Docker, Kubernetes, etc.)
  • Build and maintain tools to automate security testing and vulnerability detection
  • Support development teams by integrating security practices into the SDLC
  • Provide expert guidance on secure architecture and implementation
  • Liaise with the internal Tech Risk team to ensure security policy compliance

requirements-expected :


  • Minimum of 3 years of professional experience in security engineering, including penetration testing and vulnerability assessments
  • Proficiency in programming with C++, Python, or Go
  • Solid understanding of Linux internals and networking fundamentals
  • Familiarity with container technologies (Docker, Kubernetes) and their security implications
  • Experience with security tools, frameworks, and automated testing techniques
  • Fluent English communication skills, both written and spoken

offered :


  • Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
  • Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
  • We share the profit with Workers - over PLN 60M has already been allocated for this aim since 2022
  • Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
  • Comfortable workplace – class A offices or remote work
  • Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
  • PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
  • Investment in your growth – meetups, webinars, training platform and technology blog – you choose
  • Fantastic atmosphere created by all Sii Power People

  • Praca Warszawa
  • Chief security officer Warszawa
  • Warszawa - Oferty pracy w okolicznych lokalizacjach


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