{"id":1889937,"url":"https://alion.io/job/bjak-principal-machine-learning-engineer-5","title":"Principal Machine Learning Engineer","company":{"id":12599,"name":"Bjak","domain":"bjak.my","url":"https://alion.io/company/bjak","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":100,"open_postings":80,"ghost_share":0,"stale_share":0.05,"repost_share":0,"time_to_fill_p50_days":8,"computed_at":"2026-10-06T05:45:30Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Seoul, South Korea"],"countries":["KR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":100000,"max_usd":235000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":912},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Fine-tuning","optional":false},{"name":"Machine Learning","optional":false},{"name":"JAX","optional":true},{"name":"Python","optional":true},{"name":"PyTorch","optional":true}],"status":"live","first_seen_at":"2026-09-28T06:25:20Z","employer_posted_date":"2026-09-28","last_verified_at":"2026-10-06T21:52:04Z","board_verified":true,"closed_at":null,"days_open":8,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":8},"description":"About the Role\nThere are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting. We aim to bring intelligence to conversations, errands, organising and workflows, with minimal to no prompting.\nOur product focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. We believe products will greatly reduce hallucinations\nOur objective is to organise anyone's life, allowing us all to spend time on valuable and meaningful things\nAs Principal Machine Learning Engineer, you own the execution layer of our intelligence, turning research and model capabilities into reliable, scalable production systems.\nYou will work across the model lifecycle: data, training, evaluation, inference, and deployment. This is a hands-on leadership role for someone who wants to operate at the intersection of research, systems, and product.\nWhat You'll Own\nOwn the end-to-end ML systems powering our company, from data and training to evaluation, inference, and deployment.\n\nBuild and evolve training and fine-tuning pipelines for large models.\n\nDesign evaluation systems that measure capability, robustness, safety, and real-world product performance.\n\nArchitect high-performance inference systems, optimizing latency, GPU utilization, memory, cost, and reliability.\n\nBuild data pipelines and systems for high-quality real-world and synthetic training data.\n\nEstablish reliable production infrastructure for deploying, monitoring, and continuously improving models.\n\nPartner closely with research and application engineering to turn model capabilities into product improvements.\n\nMake pragmatic technical trade-offs and rapidly iterate based on real-world performance.\n\nWhat We're Looking For\nExperience building and shipping ML systems used in production, not just research prototypes.\n\nStrong understanding of modern large-model training, fine-tuning, evaluation, and inference.\n\nStrong software engineering and systems fundamentals.\n\nExperience operating ML workloads at meaningful scale, particularly GPU-based systems.\n\nStrong technical judgment and the ability to navigate ambiguous problems independently.\n\nA bias toward experimentation, measurement, and shipping.\n\nHigh standards for correctness, reliability, and production quality.\n\nOutcomes\nResearch and models reliably translate into production-ready solutions with clear performance and quality targets.\n\nML pipelines, training loops, and inference systems are stable, efficient, and maintainable.\n\nProduction issues are detected, debugged, and resolved quickly, minimizing user impact.\n\nTeam members are supported, aligned, and able to deliver high-impact ML work with minimal friction.\n\nIterations on models and systems are measurable, safe, and improve user experience over time.\n\nTech Stack\nPython\n\nPyTorch / JAX\n\nGPU-based training and inference system\n\nIdeal Experience\nYou have built or shipped real ML systems used by people, not just demos.\n\nYou are comfortable working with large models and understanding their failure modes.\n\nYou write strong, production-grade code and care about system correctness.\n\nHow We Work\nWe are a small, high-talent-density, hands-on team. Engineers have broad ownership and are expected to exercise strong judgment and execute independently.\nWe make decisions quickly, work closely together, and balance speed with engineering fundamentals. We care less about process and more about building something exceptional.\nInterview process\nIf there appears to be a fit, we'll reach to schedule 3, but no more than 4 interviews.\nApplications are evaluated by our technical team members. Interviews will be conducted via virtual meetings and/or onsite.\nWe value transparency and efficiency, so expect a prompt decision. If you've demonstrated the exceptional skills and mindset we're looking for, we'll extend an offer to join us. This isn't just a job offer; it's an invitation to be part of a team that's bringing AI to have practical benefits to billions globally.","description_format":"text","description_chars":4167,"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":"South Korea","iso":"KR","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["InsurTech","Financial Comparison & Loan Marketplaces"],"lifecycle":[{"event":"open","at":"2026-10-05T04:20:01Z"}],"visa":[],"liveness":{"score":61,"band":"ok","label":"Likely open","p_open":1,"p_active":0.815,"p_room":0.75,"age_days":7,"expected_fill_days":8,"reasons":["conf:0","wave","velocity","win:late","comp:brand"],"computed_at":"2026-10-06T05:45:30Z"},"pay":null,"html_url":"https://alion.io/job/bjak-principal-machine-learning-engineer-5","json_url":"https://alion.io/job/bjak-principal-machine-learning-engineer-5.json","meta":{"generated_at":"2026-10-06T23:22:47Z","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","counted_by":"address","units_charged":1,"used_today":4733,"day_limit":5000,"remaining_today":267,"minute_limit":60,"resets_at":"2026-10-07T00:00:00Z"}},"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":12599},"rest":"https://alion.io/mcp/rest/get_company?id=12599"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fbjak-principal-machine-learning-engineer-5"},{"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%2Fbjak-principal-machine-learning-engineer-5"},{"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%2Fbjak-principal-machine-learning-engineer-5"},{"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/bjak-principal-machine-learning-engineer-5\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fbjak-principal-machine-learning-engineer-5"}]}