Senior Penetration Tester – Product Security

# Senior Penetration Tester – Product SecurityFull-timeMannheim · Hybrid· Product SecurityApply now →You test products, not perimeters. As a Senior Penetration Tester for Product Security at Redlings, you assess the software and infrastructure that are part of the product: web and mobile applications, APIs, cloud-native backends, Kubernetes environments and management interfaces, always with the product, not the checklist, as the frame.The difference to a classic web pentest: the attack chain does not end at the API. It continues into the backend, onto a management interface, or into another component of the product. Thinking that chain through to the end is exactly this role, and what our clients pay for.## What you will work on* Product penetration tests across applications, APIs, backend systems and network services, on real products, not staging copies.* Authentication, authorization and complex business logic, the areas where product attacks actually succeed.* Attack chaining across product layers: from a web finding to the backend, from an API to the management interface, from the cloud to the device.* Honest exploitability assessment: what an attacker gains in this product, not what the CVSS number suggests.* Reports whose findings are reproducible and whose recommendations survive contact with an engineering team.## What you must bring* Several years of hands-on web/API pentesting experience.* Deep understanding of authentication, authorization and complex business logic.* Linux and network services, backend systems.* Sound judgment on technical exploitability.* Attack chaining across components, thinking in paths, not findings.* Python/scripting for your own tooling.* Excellent technical writing, in English.## A strong plus* Kubernetes and container environments.* Mobile applications.* Basic embedded/firmware understanding.* Product protocols, cloud-native product architectures.## What you will learn with us* Hardware and firmware assessment, the layers below your usual scope.* Product threat modelling with engineering teams.* Coordinated disclosure with manufacturers.## Do not apply if ...* ... you want to stop at the API when it gets interesting.* ... you see the report as a necessary evil. Here it is the product.* ... you want to run the same checklist against a new IP every week.## Honestly* Client travel is the exception, not the model. Most work runs remote or from the lab in Mannheim.* Small team: you will do things that larger companies have whole departments for, including the parts nobody demos.* Report writing is real work here, taken as seriously as the exploit.## What we offer* Permanent position, flexible hours, remote-first with lab days in Mannheim.* Senior-led reviews, research time for tools and publications.* Budget for certifications and conferences (OSCP, OSCE & co.).* Technical roles without sales targets.Anonymized examples of attack chains you have found are welcome. CV and a few lines via the form, we read everything ourselves. Not a 100% fit? Apply anyway.## Apply for this roleCV as PDF, a few lines on why this fits, and we will get back to you within 48 hours.
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