On behalf of a partner company, Nordic Investin is looking for a Senior Application Security Engineer. You enjoy finding the design flaw before it becomes a production incident and helping engineers fix the pattern rather than only the instance. You will work with developers on threat modelling, secure design, testing and remediation across modern web and API services. Security work is expected to reduce real exposure while preserving the organisation’s ability to deliver. Recommendations must identify the threat, the affected asset and a realistic implementation path. As a senior colleague, you will own substantial outcomes and help others make stronger decisions. You are expected to recognise risk early, communicate it without drama and move work forward with practical alternatives. What you will do

Facilitate threat modelling for new features and architectures. Review code and designs for exploitable weaknesses. Improve SAST, DAST and dependency scanning workflows. Develop secure coding guidance with practical examples. Support vulnerability triage and coordinated remediation. Teach teams through pairing, workshops and incident lessons. What you will bring

Strong software engineering or application security background. Knowledge of web, API and identity vulnerabilities. Experience with threat modelling and secure code review. Ability to automate checks within CI CD. Clear understanding of risk severity and exploitability. Constructive communication with product engineers. Experience that would add value

Cloud native application security. Mobile or embedded application security. Bug bounty, penetration testing or security research. A background that can succeed here

You may be a developer who moved into security or a security specialist who can write and review production code. What makes the opportunity interesting

The role gives you direct influence over products before release and the freedom to improve the security system around delivery. Your success will be visible in better designs, faster remediation and fewer repeated weaknesses. Nordic Investin will make sure you understand the context, expectations and decision path before you are asked to commit significant time. You do not need every optional technology if your core experience transfers and you can explain how you would close the gap. Nordic Investin welcomes candidates with different routes into technology and assesses applicants on relevant capability, judgement and potential.