{"id":3969233,"url":"https://alion.io/job/eset-ai-researcher-for-ai-stack-security","title":"AI Researcher for AI Stack Security","company":{"id":2813672,"name":"ESET","domain":"eset.cz","url":"https://alion.io/company/eset-cz","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"AI/ML","role_family":"AI/ML","seniority":null,"employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Brno, Czech Republic"],"countries":["CZ"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Fine-tuning","optional":false},{"name":"Model Distillation","optional":false},{"name":"Python","optional":false},{"name":"Quantization","optional":false},{"name":"Bitsandbytes","optional":true},{"name":"Docker","optional":true},{"name":"ESET","optional":true},{"name":"Git","optional":true},{"name":"Hugging Face","optional":true},{"name":"Machine Learning","optional":true},{"name":"ONNX","optional":true},{"name":"PEFT","optional":true},{"name":"PyTorch","optional":true},{"name":"Scikit-learn","optional":true},{"name":"Transformers","optional":true}],"status":"live","first_seen_at":"2026-11-09T15:14:30Z","employer_posted_date":null,"last_verified_at":"2026-11-09T15:14:30Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"Pracovní nabídka\nYou will become part of the newly established AI Threat Research and AI Conversation Security team within the Technology Division in Bratislava. As one of the founding members, you have a unique opportunity to shape the team's direction and methodology from the ground up.\nThe team researches attacks against conversational AI systems, probing and breaking them to understand how adversaries exploit large language models. Beyond research, the team designs and implements detection mechanisms and translates these defenses into shipping products across endpoint, cloud, and standalone form factors.\nAs an Experienced AI Researcher, you research, train, and optimize the language models that detect attacks on conversational AI. Beyond core model work, you carry models from early experiments to deployment-ready detectors that run within strict performance budgets across endpoint and cloud environments. \nAbout the Role\nResearch and prototype specialized language model detectors for malicious prompts and attempts to manipulate conversational AI, turning adversarial research findings into model designs.\nTrain and fine-tune small language models for detection tasks, from dataset preparation through experimentation to production handoff.\nDistill large models into compact, specialized detectors that balance detection quality against strict latency and memory budgets.\nOptimize inference performance through quantization, pruning, and architecture trade-offs, keeping detection real-time even on endpoint hardware.\nEvaluate detector performance across diverse conversation datasets, measuring detection quality, robustness, and false-positive rates.\nTrack state-of-the-art research in language model security and efficiency, deciding which advances are worth adopting.\nCollaborate with security researchers and product engineers to deploy detectors across endpoint, cloud, and standalone form factors.\nEssential Requirements\nDeep understanding of how large language models work internally — transformer architectures, attention mechanisms, and the trade-offs behind their performance and cost.\nExperience training and fine-tuning language models, from dataset preparation to experiment design.\nHands-on experience with model distillation, turning large models into compact detectors that preserve quality.\nExperience with inference performance optimization, including quantization and pruning for latency- and memory-constrained environments.\nRigorous approach to model evaluation, measuring quality, robustness, and false-positive behavior.\nProficiency in Python and its AI/ML ecosystem.\nStrong drive for continuous learning and staying current with state-of-the-art research.\nDesirable Requirements \nUniversity degree in Machine Learning, Computer Science, Mathematics, or a related technical field.\nBackground in cybersecurity, threat research, or adversarial machine learning.\nExperience running models on endpoint or embedded hardware.\nTechnologies \nPython, PyTorch, Hugging Face, scikit-learn, PEFT, bitsandbytes, ONNX, Docker, Git, JIRA, Confluence\nBenefits\nSupport in personal and professional development - opportunities to attend various trainings, courses, conferences or meetups\nAttractive financial bonus paid twice a year based on your performance\nFinancial support in case of life milestones (wedding, childbirth)\nComplementary retirement savings contributions\nFully covered 170 CZK/per day meal vouchers\nTransportation benefit\nRefer a friend\" benefit - the opportunity to receive a financial bonus when referring a friend for an open vacancy\nAvailable home-office or remore work\nFully-paid 3 sickdays\nMind’n’Soul Program - free helpline and counselling in personal and professional development\nSport activities support\nFresh fruit, tea, coffee, non-alcoholic beverages - you can find them all in every kitchen\nCasual, friendly, open culture with no dress code\nParticipating in company events\nOpportunity to use company common areas (terrace, relax zone, library) for a chill time and meetings with colleagues\nVolunteering and opportunity to participate in various CSR activities\nLoyalty program - extra vacation days and financial bonus after working at ESET for 5 and more years\nO pobočce\nBrno Office\nZajímá Tě, na co všechno se u nás můžeš těšit kromě práce?\nPodívejte se na profil firmy Benefits\n\nEducational courses, training\nCorporate events\nBonuses\nHolidays 5 weeks\nTransport allowance\nSick days\nOccasional work from home\nContributions to the pension / life insurance\nContribution to sport / culture / leisure\nInformace o pozici\n Společnost\n ESET Research Czech Republic s.r.o.\nPalachovo náměstí 799/5, Brno – Starý LískovecJankovcova 862/47, Praha – Holešovice Required education\n Education is not important\n Required languages\n English (Intermediate)\n Listed in\n IS/IT: Application and system development ,\n Programmer, Python developer \n Employment form\n Full-time work\n Contract duration\n Limited (temporary) \n Employment contract\n employment contract \n Employer type\n Employer\n\n Odpovědět","description_format":"text","description_chars":5036,"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":["Company events","Continuous learning","Life insurance","Professional development"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Threat Intelligence","Endpoint Security","Security Operations"],"lifecycle":[{"event":"open","at":"2026-11-09T15:14:30Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":25,"reasons":["seen:0","win:early"],"computed_at":"2026-11-10T02:53:57Z"},"pay":null,"html_url":"https://alion.io/job/eset-ai-researcher-for-ai-stack-security","json_url":"https://alion.io/job/eset-ai-researcher-for-ai-stack-security.json","meta":{"generated_at":"2026-11-10T02:53:57Z","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":6774,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-11T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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":2813672},"rest":"https://alion.io/mcp/rest/get_company?id=2813672"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Feset-ai-researcher-for-ai-stack-security"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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%2Feset-ai-researcher-for-ai-stack-security"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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%2Feset-ai-researcher-for-ai-stack-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/eset-ai-researcher-for-ai-stack-security\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Feset-ai-researcher-for-ai-stack-security"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3969233}},{"tool":"search_jobs","arguments":{"company":"eset.cz","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3969233},"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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