Company: Addition
Location: Watford
Job Description:
Addition is working with a large, highly regulated organisation on digital transformation and seeks a Principal Penetration Tester in Watford. Hybrid working, competitive salary with bonus and benefits.
You will lead testing across web apps, APIs and cloud environments (AWS) with a focus on Spring Boot microservices. Role involves threat-informed testing, purple team exercises, and coaching security colleagues for improved resilience.
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Posted: September 25th, 2026