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Senior Application Security Engineer

Warsaw, Mazowieckie, Poland🌐 Remote💼 Full-time🗓 2026-09-29

Core

Design, automate, and scale application security processes to enable engineering teams to build securely by default across web, mobile, and cloud infrastructure.

Role type

Senior/Staff Application Security Engineer (Security Automation & Architecture)

Builds

Self-service security tooling, automated CI/CD integrations, and scalable threat modelling workflows

Domain

Fintech / Application Security / Cloud Infrastructure

Required skills

Application security testing (web/mobile/API), Security architecture & threat modelling, Security automation & tooling, CI/CD integration, Cloud security (AWS/Kubernetes), Software engineering (Python/Go/JS), Vulnerability management, AI/LLM security application

Preferred skills

AI/LLM security (prompt injection, agent hardening), Kubernetes security, AWS infrastructure security, Offensive security certifications (OSCP/OSWE)

Responsibilities

Lead security architecture reviews and threat modelling, Design and build automated security processes for SDLC/CI/CD, Conduct security assessments and manage vulnerability remediation, Support bug bounty program and red teaming, Mentor engineers and drive secure development culture

Seniority

Senior/Staff, hands-on IC with strategic impact

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