Security Engineer (m/f/n) at In Post, Warszawa / Kraków

Security Engineer (m/f/n) at In Post in Warszawa / Kraków. Full-time. Est. up to $300k. Apply with swipeandhired.

InPost has revolutionised e-commerce parcel delivery in Poland and is now one of Europe’s leading out-of-home (OOH) e-commerce enablement platforms. Founded in 1999 by Rafał Brzoska, InPost provides delivery services through a network of over 64,000 Automated Parcel Machines (APMs) and more than 30,000 pick-up and drop-off (PUDO) points across nine European countries : Poland, the United Kingdom, France, Italy, Spain, Portugal, Belgium, the Netherlands and Luxembourg, alongside to-door courier and fulfilment services for ecommerce merchants.
InPost’s extensive OOH network supports rapidly growing parcel volumes across its markets, with 1.4 billion parcels delivered in 2025 . Its locker solutions offer consumers a delivery option that is cheaper, more flexible and convenient, environmentally friendly and contactless. As a leading OOH logistics provider, InPost is recognised for transforming parcel delivery economics in Europe, appealing to both consumers and merchants through its flexible, technology-driven solutions.

Your responsibilities:

• Work on the security assessment and secure design review of AI, LLM and agentic systems across InPost's technology estate.
• Identify, reproduce and reason about real vulnerabilities in AI-powered and agentic systems, and work with engineering teams to fix them at the root cause.
• Define and build engineered security controls for AI/ML and LLM-related risks.
• Build security automation and developer-facing tooling that helps product and engineering teams build securely by default.
• Review new AI solutions and system architectures for security risk, and represent security in AI governance forums and the AI solutions catalogue.
• Apply hands-on cloud and container security practices across AWS, Azure and GCP to secure the infrastructure AI systems run on.
• Act as a go-to expert on AI-specific attack classes, keeping InPost's defences ahead of an evolving threat landscape.
• Translate complex technical and security findings into clear, practical guidance for stakeholders across the business.

Must have:

• 5+ years of experience in application security or product security.
• 5+ years of coding experience in one or more general-purpose languages , including shipping and operating production services.
• 5+ years of experience with security assessments, secure design reviews or threat modelling.
• Solid understanding of generative AI, LLMs and AI agents , and how they're built and deployed in production.
• Deep knowledge of AI-specific attack classes and how they apply to real systems.
• Experience securing agentic, code-execution or LLM-integrated systems.
• A track record of finding and reasoning about real vulnerabilities in real systems.
• Experience building engineered security controls, not just flagging issues.
• Hands-on cloud and container security experience on AWS, Azure or GCP.
• Strong presentation skills, with the ability to translate complex technical and security topics into clear business terms for a wide range of stakeholders.
• Good English skills , enabling confident communication in an international environment.

Nice to have:

• Background building security automation or developer-facing security tooling.
• Working knowledge of the OWASP Top 10 for LLM Applications and OWASP Top 10 for Agentic Applications.
• Working knowledge of MITRE ATLAS.

Why InPost?

• Opportunity to work in a diverse , international , and cross-functional environment, along with leading experts .
• You work and learn from a senior leader and their leadership team, expanding your experience and exposure in the e-commerce and logistics industries.
• InPost is a growing company that offers its people an increasing number of opportunities in several locations in Europe.
• Fulfilling careers with a range of benefits for people and investing in providing training opportunities for their development.
• You will feel a part of the InPost community that makes an impact on sustainability, convenient deliveries, and the circular economy every day.
• Excellent working environment and flexible hours
• We offer B2B type of contract