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Application Security Engineer
  • Warsaw
Application Security Engineer
Warszawa, Warsaw, Masovian Voivodeship, Polska
ERGO Technology & Services S.A.
5. 9. 2025
Informacje o stanowisku

responsibilities :


  • being a member of the Data & Application Security team with a focus on operational application security technologies, including Web Application Firewall (WAF), File Integrity Monitoring tools (FIM), and cloud security initiatives
  • configuring the Web Application Firewall solution to establish cyber threat protection
  • creating, refining, and managing security rules and policies within the security applications to prevent web vulnerabilities
  • monitoring web traffic, analyzing security logs, and taking action against unusual activities
  • responding quickly to security incidents, collaborating with incident response teams
  • integrating threat intelligence feeds to enhance protection against emerging risks
  • continuously optimizing tool performance, minimizing latency for seamless user experience
  • managing ServiceNow workflows to update and patch security services
  • maintaining organized documentation of security & WAF configurations, rules, and procedures

requirements-expected :


  • fluent spoken and written English
  • analytical mindset to troubleshoot and resolve complex security issues
  • ability to explain technical vulnerabilities and remediation steps to developers, managers, and non-technical stakeholders
  • experience working with cross-functional teams (developers, DevOps, product managers) to integrate security into workflows
  • understanding of HTTP/HTTPS protocols, RESTful APIs, and GraphQL security
  • knowledge of authentication (OAuth, JWT) and session management best practices
  • ability to identify potential threats and design countermeasures during the software development lifecycle (SDLC)
  • familiarity with encryption standards (e.g., AES, RSA) and secure key management practices
  • experience with securing applications in cloud environments (e.g., AWS, Azure, Google Cloud)
  • knowledge of container security (e.g., Docker, Kubernetes)
  • understanding of integrating security into CI/CD pipelines (e.g., Jenkins, GitLab CI)
  • familiarity with Infrastructure as Code (IaC) security
  • ability to identify, prioritize, and remediate vulnerabilities using tools like Tenable Nessus
  • understanding of network protocols, firewalls, and how they relate to application security
  • familiarity with security tools and frameworks (e.g. Burp Suite, Metasploit, Wireshark, Nmap, Dependabot, OWASP, NIST, MITRE ATT&CK) and Git (e.g., GitHub, GitLab)

offered :


  • Lets be healthy – medical package, sports card, and numerous sports sections – these are some of the benefits that help our employees stay in good shape.
  • Lets be balanced – work-life balance is a key aspect of a healthy workplace. We offer our employees flexible working hours, a confidential employee assistant program, as well as the possibility of remote working. However, staying at home with our in-office gaming room and dog-friendly office in Warsaw won’t be easy.
  • Lets be smart – we organize numerous workshops and training courses. Thanks to hackathons and meetups, our specialists share their expertise with others. Additionally, we have a wide range of digital learning platforms and language courses.
  • Lets be responsible – each year, we participate in several CSR activities, during which, together with our colleagues, we do our best to create a better future.
  • Lets be fun – company-wide bike races and soccer matches, film marathons in our cinema room or other engaging team-building activities – we got it covered!
  • Lets be diverse – every team member is valued, regardless of gender, nationality, religious beliefs, disability, age, and sexual orientation or identity. Your qualifications, experience, and mindset are our greatest benefit!

benefits :


  • sharing the costs of sports activities
  • private medical care
  • sharing the costs of foreign language classes
  • sharing the costs of professional training & courses
  • life insurance
  • remote work opportunities
  • integration events
  • employee referral program
  • charity initiatives

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


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