
Senior Offensive Security Engineer - Red Team
at Klarna
Posted 20 days ago
No clicks
- Compensation
- Not specified
- City
- Not specified
- Country
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Currency: Not specified
Join Klarna's Red Team to emulate internal and external threat actors, designing realistic attack scenarios and conducting deep technical assessments across products and infrastructure. You'll perform red team engagements against internal, public-facing, and cloud assets, execute initial access campaigns (including phishing/social engineering), and move laterally across endpoints, cloud, and IoT. The role involves developing offensive security tools, providing remediation guidance to developers and the SOC, and raising awareness through demos, workshops, and training.
What you will do
The Red Team operator will perform dedicated Red Team activities simulating known threat actors, to help strengthen Klarna's overall security posture and determine the impact and likelihood of threat actors to accomplish objectives across the Kill Chain and MITRE ATT&CK Framework.
In this role, you’ll emulate both internal and external threat actors to uncover weaknesses across our most critical products and infrastructure. Everything from designing real-world attack scenarios to conducting deep technical assessments.
Break into (and out of) all the things.
Conduct red team assessments against internal, public-facing, and cloud assets.
Perform Initial access campaigns such as Phishing and other Social Engineering activities.
Move laterally between endpoints, cloud, IoT, and whatever else stands between you and the engagement goal.
Develop offensive security tools for internal and public use.
Provide expert guidance to developers, other security teams, and the SOC in investigating issues.
pread awareness of offensive security practices via demos, workshops, and training.
Who you are
Strong experience red teaming and performing other technical security assessments, with and without automated tools.
Strong Opsec focus.
Strong experience of testing Cloud Native environments and CI/CD pipelines using a mix of macOS, Linux, and Windows endpoints.
Comfortable communicating findings clearly and effectively to both technical and nontechnical audiences, with concrete remediation recommendations beyond simple issue reporting.
Experience with programming and contributing to large and small projects in C, Go, Perl, or whatever other language is best suited to the task.
Awesome to have
Industry recognized certifications
A degree in Computer Science or Computer Engineering
Contributions to the larger cybersecurity community
Please include a CV in English.
Curious to learn more about Klarna and what it’s like to work here? Explore our career site!





