{"id":3084509,"url":"https://alion.io/job/deloitte-senior-penetration-tester-2","title":"Senior Penetration Tester","company":{"id":272,"name":"Deloitte","domain":"deloitte.com","url":"https://alion.io/company/deloitte","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Avature","truth_index":{"grade":"A","score":88,"open_postings":13,"ghost_share":0,"stale_share":0.692,"repost_share":0,"time_to_fill_p50_days":13,"computed_at":"2026-10-31T05:58:55Z"}},"role":"Security","role_family":"Security","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Athens, Greece"],"countries":["GR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":33000,"max_usd":75000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2372},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Burp Suite","optional":false},{"name":"Cobalt Strike","optional":false},{"name":"Covenant","optional":false},{"name":"Kali Linux","optional":false},{"name":"Linux","optional":false},{"name":"Metasploit","optional":false},{"name":"Nessus","optional":false},{"name":"Red Teaming","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-10-22T10:20:03Z","employer_posted_date":null,"last_verified_at":"2026-10-22T10:20:03Z","board_verified":false,"closed_at":null,"days_open":9,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":9},"description":"Senior Penetration Tester\n\nWhat Impact will you make?\n\n#YourOpportunity\n\nDo you thrive at solving complex challenges? Want to work on next-generation, cutting-edge products and services that deliver outstanding value? Work with other experts in your field? Work for a world-class organization that provides exceptional career experience and an inclusive and collaborative culture? Want to make an impact that matters? Consider joining Deloitte.\n\nWe are currently seeking for enthusiastic team players with exceptional penetration testing skills and a well-rounded personality to become part of our dynamic Cyber team based in Athens. The team is part of a global network, where brilliant colleagues collaborate across Deloitte locations, to deliver services to our clients both in Greece and abroad.\n\nAs a Senior Penetration Tester, you will work in a highly skilled team to perform various Penetration Testing and Red Teaming engagements for our domestic and international clients. Using your offensive skills, you will covertly breach our clients’ networks and provide recommendations to strengthen the client’s security posture. To sharpen your skills, you will be trained with the Offensive Security trainings; you will join the periodic Deloitte Global Ethical Hacking and Red Team knowledge exchange sessions, and perform research on the latest techniques and tools. Moreover, you will serve as a “Subject Matter Expert”, adding interpretive value to findings presented and be responsible for creating and executing custom penetration testing engagements to identify if client systems are vulnerable to security issues.\n\n#YourRole\n\nYour role as a Senior Penetration Tester will enable you to work alongside fellow Ethical Hackers, who are incredibly passionate about what they do and are characterised by their commitment to working as a team, and their ever-present customer focus. In this role, you will actively participate in technical planning and the delivery of best-in-class service to our clients. In this role, you will find yourself in a personal learning and development fast track and will be given many opportunities to get exposure and make an impact that matters.\n\nDuring your tenure as a Senior Penetration Tester, you will be able to:\n\nBe part of a truly global community of Deloitte experts in Ethical Hacking and Cyber Security;\n\nWork on projects focused on identifying security vulnerabilities on client’s infrastructure, Web and Mobile Apps etc.;\n\nFind creative ways to obtain a foothold in a client's network;\n\nApply an adversary mindset to simulate sophisticated actors and achieve project-specific objectives;\n\nStealthily move laterally within client’s IT environments, making sure not to trigger any alarms;\n\nPerform research and develop your own tools and sharpen your tradecraft;\n\nShare your research within the Deloitte Global Hacking and Red Team community;\n\nTurning security weaknesses into tailored and concrete recommendations;\n\nTranslate technical issues into business risks;\n\nFacilitating Purple Team workshops and training defensive teams of clients in to identify tactics, techniques and procedures (TTPs) used by adversaries;\n\nReceive training and attain certifications in the use of cutting-edge cybersecurity products but also on various cybersecurity engineering topics.\n\n#WinningRequirements\n\nTo qualify for the role, you must have:\n\nBachelor’s Degree in Information Technology, Information Systems Security, Cybersecurity, or related work experience\n\nExperience with penetration testing like Web Application, Mobile, Infrastructure and Vulnerability Assessments both on *nix and Windows environments;\n\nExpertise using Kali Linux and tools like Burp, Metasploit, Covenant, Cobalt Strike, and Nessus;\n\nExperience effectively prioritizing workload to meet deadlines and work objectives;\n\nDemonstrated ability to write clearly, succinctly, and in a manner that appeals to a wide audience;\n\nConsultant mindset, commitment to teamwork, and ability to build strong client relationships.\n\nStrong communication skills (in Greek and in English).\n\nAbility to maintain professionalism and always strive for high ethical standards.\n\n3+ years of experience in Penetration Testing and/or Red Teaming;\n\nWillingness to research new security testing techniques and tradecraft;\n\nPreferred hands on experience with Red Teaming.\n\n Ideally:\n\nMilitary obligations fulfilled where applicable\n\nPreferred professional qualifications: OSCP, OSEP, OSCE, OSWE, CRTO, PACES etc.\n\nWeb Security Academy (PortSwigger)\n\nHack the Box level: Pro Hacker\n\n#ChooseDeloitteif:\n\nYou want to work with inspiring, ambitious, and supportive people with diverse geographical and academic backgrounds and extensive skills.\n\nYou get excitement in managing clients shifting priorities and accomplish tasks in a challenging, fast-paced environment.\n\nYou like to nurture people and share your knowledge with others.","description_format":"text","description_chars":4914,"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":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Penetration Testing","Financial Advisory, Valuation & Restructuring","Management Consulting","Tax Advisory & Preparation"],"lifecycle":[{"event":"open","at":"2026-10-22T13:08:10Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 115 · green card filings: 8","filings_12m":115,"filings_prev_12m":59,"green_card_filings_12m":8,"median_offered_wage_usd":150549,"route":null,"cap_exempt":false,"checked_at":"2026-10-29T16:27:21+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":4},{"country":"GB","licensed_sponsor":true,"evidence":"Licensed UK visa sponsor (Senior or Specialist Worker, Skilled Worker)","filings_12m":null,"filings_prev_12m":null,"green_card_filings_12m":null,"median_offered_wage_usd":null,"route":"Global Business Mobility: Senior or Specialist Worker; 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