Senior Application Security Engineer (AI models)

We are seeking a Senior Application Security Engineer to define consistent Security Software Development Lifecycle practices across all client technology projects.

In this role, you will ensure application security vulnerabilities are mitigated to tolerable levels throughout the planning and delivery cycles.

The ideal candidate brings strong application security knowledge, web application development experience, and team leadership skills, along with a solid understanding of OWASP, CWE25, Data Protection, Access Management, software vulnerabilities, secure design best practices, and threat modeling. You will collaborate with developers to produce secure code under tight deadlines in a dynamic environment.

Responsibilities

• Collaborate as part of a team of software and security engineers to design, maintain, and build product security tools and services
• Serve as the technical point of contact for product teams regarding CI/CD automation and Product Application Sec Ops
• Leverage approved AI models and Cyber Harness to assess application code for business logic weaknesses, misconfigurations, and vulnerabilities
• Build and automate scripts that enable developers to easily consume security services delivered by the Sec Engineering and Automation team
• Own security product QA and testing activities
• Run software composition analysis (SCA) tools
• Interpret and explain penetration testing findings to the software engineering team, assisting them with triage and risk mitigation guidance
• Articulate business risk when assessing software vulnerabilities
• Continuously improve the operations of SAST, DAST, and IaC security tools
• Enhance the operations of Web Application Firewalls (WAF) and IDS
• Expand security coverage and tooling in cloud environments such as Microsoft Azure and AWS

Requirements

• Degree in Computer Science or Cyber Security
• 3+ years of experience in Application Security with a strong application development background
• Hands-on experience with Azure DevOps
• Prior experience using AI models and Cyber Harness to support security evaluation of applications and software code
• Familiarity with GitHub, Copilot, and Codex
• Knowledge of OWASP Top 10 for Agentic AI, AI skills development, and security triage
• Proficiency in coding with Python, JavaScript, C#, or PowerShell
• Deep understanding of OWASP, CWE25, Data Protection, Access Management, software vulnerabilities, secure design best practices, and threat modeling
• Excellent analytical skills with strong attention to detail
• CISSP, CSSLP, CEH, OSCP, or similar certification
• Presentation skills with the ability to communicate complex solutions to less technical audiences
• Excellent command of written and spoken English (B2+ level)

Nice to have

• Prior experience working in a large organization or within Financial Services
• Exposure to secure SDLC program definition across enterprise technology projects

We offer

• We gather like-minded people:
• Top tech minds driving innovation in AI, cloud and digital platform modernization
• Supportive team and agile, startup-like culture
• Hybrid by design mode and opportunity to work remotely within Poland
• Chance to work abroad for up to 60 days annually
• Business-driven relocation opportunities
• We provide growth opportunities:
• Career development programs
• Thought leadership, mentoring, soft skills and well-being programs
• Certification (Anthropic, Gemini, GCP, Azure, AWS)
• English classes
• We cover it all:
• Stable pay
• Participation in the Employee Stock Purchase Plan with a 15% discount
• Benefits package (health insurance, multisport, shopping vouchers)
• Referral bonuses up to $2,000
• Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more
• Corporate, social and well-being events
• Please, note:
• Benefits listed above are available to employees only
• We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually
• We will reach out to selected candidates exclusively

EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.