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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on security research within financial services, emphasizing zero-day discovery, exploit development, and AI-driven innovation. Key technologies include reverse engineering, fuzzing, Android/iOS, Linux, Windows, and AI for security. Responsibilities cover leading research projects, threat analysis, automation and AI tooling development, and collaboration with offensive security teams. Benefits include medical care, Multisport card, and training opportunities.
from: 15 September 2026
to: 15 October 2026
28 000 - 34 000 złnet (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Kraków, Lesser Poland
Kraków, Lesser Poland
Requirements
Operating system
Windows
Linux
Our requirements
- Proven experience in delivering highly sensitive cybersecurity research projects.
- Deep expertise in:
- Vulnerability discovery and exploit development (0-day, vulnerability disclosure)
- Reverse engineering, fuzzing, penetration testing, black-box and source code review
- Software security, system architecture, and mobile security (Android, iOS)
- Hardware hacking and wireless technology
- Strong programming background and automation experience.
- Familiarity with AI for security research, leveraging and training AI models for discovery/validation of vulnerabilities.
- Solid understanding of Linux, Windows, Android, and iOS.
- Exceptional analytical and problem-solving abilities, coupled with clear communication skills.
- Degree in Computer Science (or equivalent experience).
Optional
- Active participation in cybersecurity industry and vulnerability disclosure programs is a plus.
- Offensive Security, CREST, or relevant advanced security certifications.
- Hands-on experience with security for AI systems, LLM security risks, and GenAI exploitation models.
Your responsibilities
- Lead security research projects targeting critical systems and services.
- Perform advanced 0-day vulnerability discovery, exploit development, reverse engineering, and fuzzing.
- Analyze and interpret the evolving threat landscape, delivering actionable insights.
- Engage with cybersecurity leads, technology functions, and global business teams to ensure risk reduction.
- Drive automation, tooling, and AI-driven innovation (e.g., applying GenAI, LLMs, and AI for Security in vulnerability discovery and validation).
- Support security testing of emerging technologies, mobile platforms, wireless protocols, and hardware.
- Maintain strong collaboration with Offensive Security and Cybersecurity Engineering teams.
- Produce security research outputs and articulate business risk impact to senior stakeholders.
- Note: Detailed project information will be shared during the recruitment process.
About the project
Are you passionate about discovering zero-day vulnerabilities, developing exploits, and innovating security research with AI? Our client, a global leader in financial services, is looking for a Principal Security Researcher to join its Cybersecurity Research & Offensive Security (CROS) team, playing a critical role in identifying risks and building scalable solutions to strengthen resilience against sophisticated cyber threats.
This role demands technical mastery, out-of-the-box thinking, and the ability to operate within highly sensitive projects that directly impact global security posture.
Sounds like your kind of challenge?
This is how we organize our work
This is how we work
at the client's siteagile
This is how we work on a project
- TDD
- Continuous Deployment
- Continuous Integration
- DevOps
- issue tracking tools
- test automation
- testing environments
Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.
What we offer
- Flexible cooperation model
- Hybrid work setup –6x/msc from the office in Kraków - remote days available depending on the client’s arrangements
- Collaborative team culture – work alongside experienced professionals eager to share knowledge
- Continuous development – access to training platforms and growth opportunities
- Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
- High quality equipment – laptop and essential software provided
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- life insurance
Mindbox Sp. z o.o.
At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe.
Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.
Principal Security Researcher
28k–34k zł / mth. (B2B)
I apply to:
Mindbox Sp. z o.o.
Kraków, Lesser Poland
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