Junior Application Security Engineer (Basingstoke, Hybrid: 2 days onsite)

Infosum is looking for a Junior Application Security Engineer with a keen interest in application and cloud security. This role is perfect for someone early in their career who wants to develop hands-on experience in securing SaaS platforms. You’ll be supported by senior engineers while learning how to test applications, uncover vulnerabilities, and embed secure-by-design practices into products.

This position is based in Basingstoke with two days a week onsite.

What you’ll do

• Assist with application security testing across web apps, APIs, and cloud infrastructure.
• Support penetration testing and help document findings and recommendations.
• Work closely with developers to learn how to identify and remediate security issues.
• Contribute to threat modeling and risk assessments under the guidance of senior engineers.
• Gain practical experience with security testing tools and automation.
• Stay up to...