{"id":105492,"url":"https://alion.io/job/twelvelabs-senior-machine-learning-engineer-pegasus-2","title":"Senior Machine Learning Engineer, Pegasus","company":{"id":4015,"name":"Twelve Labs","domain":"twelvelabs.io","url":"https://alion.io/company/twelvelabs","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Ashby","truth_index":null},"role":"AI/ML","role_family":"AI/ML","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":["Seoul, South Korea"],"countries":["KR"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":93000,"max_usd":241000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2216},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Claude","optional":false},{"name":"Computer Vision","optional":false},{"name":"Embeddings","optional":false},{"name":"Gemini","optional":false},{"name":"Kubernetes","optional":false},{"name":"LLM","optional":false},{"name":"Machine Learning","optional":false},{"name":"Multimodal AI","optional":false},{"name":"Databricks","optional":true},{"name":"Pre-training","optional":true},{"name":"Quantization","optional":true},{"name":"Snowflake","optional":true},{"name":"Structured Outputs","optional":true},{"name":"VLM","optional":true}],"status":"live","first_seen_at":"2026-08-19T02:12:53Z","employer_posted_date":"2026-08-19","last_verified_at":"2026-10-21T12:13:47Z","board_verified":true,"closed_at":null,"days_open":63,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":63},"description":"Who we are\nVideo is 90% of the world's data. Most of it is invisible to machines.\nTwelveLabs builds the intelligence layer to change that. Our multimodal AI models understand video the way humans do - across sight, sound, and motion - and power production-scale AI workloads across media, entertainment, sports, security, and government.\nWe have raised more than $210 million from NEA, Radical Ventures, Amazon, NVIDIA, Snowflake, Databricks, Index Ventures, NAVER Ventures, Korea Investment Partners, Quadrille Capital, Red Bull Ventures, and AI pioneers including Fei-Fei Li, Silvio Savarese, and Alexandr Wang.\nWe are a global company, headquartered in San Francisco with offices in Seoul, New York, and London, and employees around the world. We believe the differences in our cultural, educational, and life experiences make our products stronger. Building technology that understands the world in all its complexity requires people who see it from every angle. We are looking for individuals who are driven by hard problems and want their work to matter. Come build it with us!\nAbout Jockey\nJockey is TwelveLabs' unified agentic system that reasons across your videos and images. It combines a reasoning model with a memory layer that builds a knowledge store from your corpus.\nNo context window holds a video archive. We work at a million hours of video. A single model forward pass can tell you about one file; it can't reason across a corpus, and no context window closes that gap. Jockey decomposes a query, retrieves, segments, and reasons across thousands of videos and images. Point it at an archive, ask for a highlight reel or the best viral moments, and it returns timestamped cuts you can use. Corpus-level understanding you can act on is the whole product.\nBuilt for agents, not just people. As AI agents increasingly become the primary consumers of video, we're building production-grade infrastructure that scales to millions of hours while delivering reliable, high-quality results for both human users and autonomous agents.\nWe build on models we own. Marengo, our embedding model, resolves a query like \"the moment we almost missed the flight\" into real retrieval. Pegasus, our video-language model, returns structured, timestamped moments on a schema you define. We ship and improve both continuously, so Jockey's quality compounds with every release - no re-integration for customers. Few teams get to build an agent on a stack they control end to end.\nDeep expertise, one system, open culture. Foundation models, knowledge construction, search, and the agent harness all live in one org. Each team owns its domain and is expected to have deep expertise in it - but like a Formula 1 team, we optimize for the global system, not local parts. A model gain that doesn't expand what the agent can do isn't a gain. We trace a single algorithm change through to end-system behavior, and share work in progress weekly, not just finished results. Anyone can pull the context they need from any team.\nAbout the team\nThe Cognition Models team owns the models that turn video into structured understanding and reasoning: Pegasus, our video-language model, and Jockey Core, the reasoning LLM behind Jockey. In the model stack we sit between Perception Models (embeddings and retrieval) and the agent system - taking what's retrieved and producing structured understanding and the reasoning to act on it.\nWe focus on multimodal systems with high instruction-following capability and complex, hierarchically structured outputs. Our work spans training infrastructure from pre-training to RL, temporal segmentation and structured metadata extraction, large-scale inference and serving systems, data-curation and evaluation pipelines, and building Jockey Core. We ship products with real-world value rather than doing research in isolation, working as a goal-oriented, cross-functional team of ML researchers and engineers - using the most advanced compute in the world, including NVIDIA B300s, to accelerate the research-to-production cycle.\nAbout Pegasus\nPegasus is TwelveLabs' video-language model - it turns video into useful analysis by reasoning over visuals, speech, audio, and on-screen text. A key capability is Segment, our time-based metadata feature: instead of a broad question about a video, customers define the exact segment types they care about and the metadata fields they want back, and Pegasus finds the relevant start and end times and returns structured metadata for each segment - titles, summaries, topics, people, visual subjects, confidence, or domain-specific labels. This turns video into time-based, structured data that flows directly into search, archive, editing, compliance, or content-management workflows.\nIn this role, you will\nBuild, improve, and operate production ML systems for Pegasus, with a focus on reliability, performance, and maintainability.\n\nWork across core parts of the ML stack, including deployment, inference, evaluation, monitoring, and supporting infrastructure.\n\nDevelop systems for serving Video Language Models (VLMs) and handling multimodal data and metadata at production quality.\n\nMake strong technical decisions within your area and drive execution with a high degree of ownership.\n\nExplore and adopt AI-assisted development tools such as Claude, Gemini, and GPT to improve productivity across coding, experimentation, debugging, and documentation.\n\nYou may be a good fit if you have\nStrong software engineering and machine learning fundamentals.\n\nExperience building and shipping ML systems in production.\n\nExperience with multimodal data and familiarity with areas such as computer vision, natural language processing, LLMs, or VLMs.\n\nExperience with distributed ML or data workflows, ideally in Kubernetes-based environments.\n\nStrong engineering judgment around performance, reliability, and maintainability in production environments.\n\nPreferred qualifications\nExperience serving or optimizing LLM/VLM systems in production.\n\nExperience with inference optimization techniques such as batching, caching, or quantization.\n\nExperience building AI/ML systems from early-stage development through production deployment.\n\nMaster's or PhD in Machine Learning, Computer Science, or a related technical field.\n\nRead more about the team\n영상에 진심인 곳은 전 세계에 몇 군데 없어요\n\n아무리 뛰어난 모델도, 안 쓰이면 ‘신기하다’에서 끝이에요\n\nPegasus 1.5를 만든 사람들\n\n비디오를 구조화된 자산으로: Time-Based Metadata(TBM) 파이프라인 구축기\n\nCutting Edge Isn’t Plug-and-Play: B300에서 FlashAttention-4 커스터마이징하기\n\nHiring Process\n서류 검토 → 리크루터 인터뷰 → Hiring Manager 인터뷰 → 직무 인터뷰(1~2 Round) → 파이널 인터뷰 → 레퍼런스 체크 및 오퍼 → 최종합격\n*전형절차는 직무별로 다르게 운영되며, 일정 및 상황에 따라 변동될 수 있습니다. 직무 인터뷰에는 대면 인터뷰가 포함될 수 있는 점 참고 바랍니다.\nBenefits and Perks\nGrowth & Tools\n글로벌 B2B 고객과 함께 성장하는 Global Team\n\n자율성과 협업을 모두 갖춘 하이브리드 근무\n\n최신 맥북 및 70만 원 상당 재택근무 장비 지원, 3년 주기로 최신 장비 교체\n\nTech 직군이 AI를 효율적이고 책임 있게 활용할 수 있도록 LLM 토큰을 무제한 지원\n\n강의, 컨퍼런스, 멤버십 등에 사용 가능한 연 140만원 상당 자기개발비 지원\n\n영어 교육 프로그램 및 글로벌 버디 프로그램 운영\n\n야간 및 주말 출퇴근 택시비 지원\n\nMeal & Snack\n식비·교통비 등 자유롭게 사용할 수 있는 연 720만원 상당 법인카드 제공\n\n사무실 내 스낵바 운영 (간식, 커피, 제철 과일 등)\n\n사무실 근무 시, 오후 7시 이후 저녁 식대 제공\n\nWellness & Family\n연 1회 본인 및 가족 1인의 건강검진 제공\n\n단체보험 가입 (상해보험/치아보험/가족 상해보험 중 택 1)\n\n독감 예방접종비 지원\n\n연말 2주간 유급 Holiday Break 운영\n\nAdditional Notes\n한국 전 직군 공통 자격요건: 해외 여행에 결격 사유가 없는 분\n\n모든 입사자에게 3개월의 수습기간이 적용됩니다. 해당 기간 동안 급여는 100% 지급됩니다.\n\n채용 과정에서 제출한 서류에 허위 사실이 있거나 부정 행위가 확인될 경우, 합격이 취소되거나 향후 채용이 제한될 수 있습니다.\n\nIf someone contacted you about this role and you’d like to verify they’re a member of our team, please 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