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Application Security Engineer (f/m/x)
  • Warsaw
Application Security Engineer (f/m/x)
Warszawa, Warsaw, Masovian Voivodeship, Polska
Sii Sp. z o.o.
31. 1. 2026
Informacje o stanowisku

Application Security Engineer (f/m/x)

Miejsce pracy: Warszawa

Technologies we use

Expected

  • OpenText Fortify
  • Sonatype NexusIQ
  • Qualys WAS

About the project

We are seeking a talented Security Engineer to join our client’s Application Security team. In this role, you will focus on securing applications through activities such as Static Application Security Testing, web application scanning, and supporting software development teams in addressing security vulnerabilities.

This is a hybrid position based in Warsaw, requiring two days per week in the office.

Your responsibilities

  • Provide expertise on secure development practices and frameworks
  • Perform security testing and code reviews to strengthen software security
  • Onboard applications into security testing tools (e.g., OpenText Fortify, Sonatype NexusIQ, Qualys WAS)
  • Build or adapt CI/CD pipelines to automate security scans
  • Assist development teams with troubleshooting and debugging security issues
  • Document recurring issues and update secure coding guidelines

Our requirements

  • At least 5 years of experience as a Security Engineer or in a related security role
  • Proven experience as a Software Security Engineer with strong knowledge of application security vulnerabilities and mitigation techniques
  • Proficiency in at least one programming language (Java, JavaScript/TypeScript, or Python)
  • Good understanding of web technologies, architectures, and protocols
  • Strong analytical, organizational, and communication skills with the ability to work effectively in a team and matrix environment
  • Fluency in English and Polish

Optional

  • Penetration testing experience

What we offer

  • 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 76M 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

Recruitment stages

  • Send your CV
  • Talk to us about your expectations
  • Learn more about our projects and choose the best
  • Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.

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


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