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The Security Research group is hiring a senior, hands-on Application Security Researcher to push modern AppSec forward - working with engineers, researchers and AI/data scientists on next-generation detection, including autonomous, agentic pen-testing capabilities. This is a build-and-break role, not a typical AppSec position.\nRequirements\nMust-have skills:\n5+ years hands-on in offensive security, vulnerability research, or application security\nDeep understanding of web application and API vulnerabilities, including business-logic flaws and multi-step attack chains\nStrong coding in Python, Go, or similar, with production-quality code shipped\n**Experience building or tuning detection logic (**SAST, DAST, SCA, secrets, or custom rule engines) and reducing false positives\nSolid grasp of modern stacks: CI/CD pipelines, containers, Kubernetes, and at least one major cloud provider\nHands-on use of LLMs / AI models for security tasks, with the judgment to measure where they help and where they fail\nComfort with large datasets (SQL, BigQuery, or similar) t o drive research and measure detection accuracy\nTakes research ideas from prototype to production with minimal guidance\nClear written communication - can explain a complex attack path to engineers and product managers\n M.Sc. in Computer Science, Cyber Security, or a related field\nNice to have:\nPublished research, CVEs, conference talks, or a bug bounty track record\nExperience building AI agents or evaluation frameworks for LLMs\nBackground in exploit development, red teaming, or penetration testing\nCode analysis techniques (taint analysis, call graphs, reachability)\nContributions to open-source security tools","description_format":"text","description_chars":1836,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"master","optional":true},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Ukraine","iso":"UA","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Application Security","IT Outsourcing & Dedicated Teams","Custom Software Development","Cloud Consulting & 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