https://jobs.co.uk/job/penetration-tester-83zero-ltd--a26e5802-aa34-4497-b7bb-56144face78c RSS feed for Penetration Tester at 83Zero Ltd. en-gb Thu, 22 Oct 2026 17:24:45 GMT https://jobs.co.uk/job/penetration-tester-83zero-ltd--a26e5802-aa34-4497-b7bb-56144face78c https://jobs.co.uk/job/penetration-tester-83zero-ltd--a26e5802-aa34-4497-b7bb-56144face78c Tue, 20 Oct 2026 11:53:51 GMT Location: England | Salary: 500.00-500.00 Daily | Type: Contract | Offensive Security Consultant/Penetration Tester£500 per Day | Inside IR35 | Fully Remote | 12-Month ContractWe are working with a leading global cyber security vendor looking for an experienced Offensive Security Consultant/Penetration Tester to join their Professional Services team on an initial 12-month contract.This is an excellent opportunity to work on complex enterprise security engagements, delivering penetration testing, adversary simulations and red team exercises for customers across a range of industries.Key ResponsibilitiesConduct hands-on penetration testing across enterprise networks, cloud environments (AWS, Azure, GCP), web applications, APIs and mobile platforms.Plan and execute red team and purple team exercises, aligned with frameworks such as MITRE ATTandamp;CK.Identify vulnerabilities, develop proof-of-concept exploits and demonstrate potential security risks.Conduct Active Directory security assessments and exploitation testing.Support phishing simulations, social engineering and other adversary simulation activities.Produce detailed technical reports, communicate findings to customers and recommend remediation strategies.Work directly with enterprise custome... Contract