{"id":2336023,"url":"https://alion.io/job/cognisys-penetration-tester","title":"Penetration Tester","company":{"id":1917209,"name":"Cognisys","domain":"cognisys.co.uk","url":"https://alion.io/company/cognisys-co-uk","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Welcome to the Jungle","truth_index":null},"role":"Security","role_family":"Security","seniority":null,"employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Leeds, United Kingdom"],"countries":["GB"],"hiring_countries":["GB"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":59000,"max_usd":133000,"period":"year","method":"role_country_seniority_unknown","sample_n":140},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-10-11T00:07:14Z","employer_posted_date":"2026-10-12","last_verified_at":"2026-10-17T22:35:34Z","board_verified":true,"closed_at":null,"days_open":6,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":6},"description":"Join Cognisys, a rapidly growing cybersecurity company, as a Penetration Tester. In this client-facing role, you will conduct security assessments across various client environments, simulate real-world attack scenarios, and communicate your findings clearly to both technical and non-technical stakeholders. You will have the opportunity to work alongside experienced cybersecurity professionals, contribute to challenging client engagements, and help shape the way we deliver our services.\nMissions\nConduct penetration testing across various environments, including networks, web applications, APIs, mobile applications, and cloud environments.\nSimulate real-world attack scenarios to assess client resilience against cyber threats, using a combination of automated tools and manual techniques.\nCommunicate findings clearly and professionally, producing high-quality technical reports that help clients understand their vulnerabilities and how to remediate them.\nProfil recherché\n - Are you ready to make an impact in the fast-paced world of cybersecurity?- We're looking for someone with a strong technical foundation in offensive security who is equally comfortable working with clients and communicating technical findings\n- CREST-related certifications\n- Hands-on experience conducting penetration testing and security assessments\n- A strong grasp of how to assess and break technical controls, with the ability to explain the findings clearly to clients\n- Cloud security testing\n- Excellent written and verbal communication skills\n- Web application testing\n- CRT\n- The following certifications are highly regarded:\n- Other relevant penetration testing or offensive security certifications\n- Experience using vulnerability scanning tools alongside manual testing and exploitation techniques\n- Network penetration testing\n- Strong analytical and problem-solving skills\n- A proactive approach to learning and keeping up to date with developments in offensive security\n- The ability to communicate technical vulnerabilities and risks in a clear, non-technical format\n- Mobile application testing\n- OSCP\n- Industry-recognised certifications are preferred and may include:\n- API testing\n- The ability to manage your workload effectively and deliver work to agreed deadlines\n- Strong client engagement skills and a professional approach to customer service\n- Experience across one or more of the following areas:\n- CPSA\n- Relevant practical experience will also be considered alongside formal certifications\n- A strong understanding of offensive security methodologies, tools and techniques","description_format":"text","description_chars":2590,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United Kingdom","iso":"GB","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Penetration Testing","Cybersecurity"],"lifecycle":[{"event":"open","at":"2026-10-12T10:04:18Z"}],"visa":[],"liveness":{"score":94,"band":"hot","label":"Hiring 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