{"id":3154857,"url":"https://alion.io/job/syndis-senior-penetration-tester-application-security","title":"Senior Penetration Tester - Application Security","company":{"id":56972,"name":"Syndis","domain":"syndis.com","url":"https://alion.io/company/syndis","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Kjarni","truth_index":null},"role":"Security","role_family":"Security","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Iceland"],"countries":["IS"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":70000,"max_usd":162000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2372},"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"LLM","optional":false},{"name":"CVE","optional":true}],"status":"live","first_seen_at":"2026-10-23T14:10:03Z","employer_posted_date":"2026-10-23","last_verified_at":"2026-10-29T02:20:07Z","board_verified":true,"closed_at":null,"days_open":5,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":5},"description":"Ready to unhack the planet?\nAt Syndis, we're expanding our offensive security team in Stockholm Sweden and looking for an experienced hacker who wants to do more than just another penetration test. We want you who doesn't just run vulnerability scanners, we want you who wants to find your own.\nSomeone who can challenge conventional thinking, drive innovative research, and still get excited about finding that one vulnerability nobody else noticed.\nIf you love breaking into systems and chaining findings to show what an attacker can actually achieve, this is home. We are hackers at heart.\nThe role\nHack things. Perform advanced penetration tests and security audits across applications, APIs, infrastructure, and complex environments. Find vulnerabilities that automated tools simply won't\nLeverage and write your own tooling, research new attack paths and continuously sharpen our offensive methodologies\nWork closely with engineering and executive teams, delivering clear, actionable reports written for people who actually build and secure systems\nLead and inspire. Help build, mentor, and develop our offensive security team. Share knowledge, challenge assumptions, and help others become better hackers\nWhat you’ll bring\nStrong hands-on (minimum 3 years) experience in penetration testing, application security, and security audits\nThe ability to lead, mentor, and inspire other hackers\nA passion for vulnerability research, creative problem-solving, and continuous learning\nStrong written and communication skills in Swedish and English.\nSwedish citizenship and a clean criminal record are required for this role\nRelevant certifications preferred, such as OSWA, OSWE or CREST. However, curiosity, creativity, and actual hacking skills matter more\nKnowledge of LLM-driven tools in application security is a plus\nBonus points: CVE discoveries, security research, CTFs, bug bounties, open-source contributions, or certifications such as OSCP, OSWE, OSWA, and CREST\nWhat we offer\nWe aren’t fans of checkbox pentests, compliance-driven box-ticking, or running the same vendor script year after year. At Syndis, we believe real security is built by people who build their own tools, think like real adversaries and focus on business impact. You care about the outcome of the test and helping clients fix the root cause, not just handing over a massive report.\nWe offer challenging application security projects, ownership of your assessments and experienced colleagues who share their knowledge. You’ll find an inclusive, supportive culture with flexible working hours, excellent training and career development and great social events!\nReady to unhack the planet with us?\nApply with your CV and cover letter. We’d love to hear about YOU and why you’d like to join Syndis.\nThe application deadline is November 20th, 2026.\nFor questions about the role, contact Pavel Chen, Director of Offsec (), Eva Demireva, HR Manager () and Petra Klein, Managing Director Sweden ().","description_format":"text","description_chars":3024,"description_truncated":false,"requirements":{"experience_years_min":3,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"Swedish","level":"All levels","optional":false}]},"benefits":["Continuous learning","Flexible schedule"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Penetration Testing","Application Security","Information Security","Incident Response"],"lifecycle":[{"event":"open","at":"2026-10-23T14:10:03Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":4,"expected_fill_days":28,"reasons":["conf:1","win:early"],"computed_at":"2026-10-28T05:59:10Z"},"pay":null,"html_url":"https://alion.io/job/syndis-senior-penetration-tester-application-security","json_url":"https://alion.io/job/syndis-senior-penetration-tester-application-security.json","meta":{"generated_at":"2026-10-29T05:46:33Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":8906,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-30T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":56972},"rest":"https://alion.io/mcp/rest/get_company?id=56972"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fsyndis-senior-penetration-tester-application-security"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fsyndis-senior-penetration-tester-application-security"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fsyndis-senior-penetration-tester-application-security"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/syndis-senior-penetration-tester-application-security\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fsyndis-senior-penetration-tester-application-security"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3154857}},{"tool":"search_jobs","arguments":{"company":"syndis.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3154857},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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