{"id":825176,"url":"https://alion.io/job/factored-senior-machine-learning-engineer-llms-agentic-workflows","title":"Senior Machine Learning Engineer (LLMs - Agentic Workflows)","company":{"id":673411,"name":"Factored","domain":"factored.com","url":"https://alion.io/company/factored","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"D","score":52,"open_postings":10,"ghost_share":0.8,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":30,"computed_at":"2026-11-03T05:54:40Z"}},"role":"AI/ML","role_family":"AI/ML","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_regions","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["AR","BR","CO","MX","AI","AG","AW","BS","BB","BZ","BM","BO","VG","BQ","KY","CL","CR","CW","DM","DO","EC","SV","FK","GF","GD","GP","GT","GY","HT","HN","JM","MQ","MS","NI","PA","PY","PE","PR","KN","LC"],"hiring_countries_total":48,"salary":null,"salary_estimate":{"min_usd":53000,"max_usd":140000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2365},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agentic Workflows","optional":false},{"name":"AI Agents","optional":false},{"name":"Arize Phoenix","optional":false},{"name":"AWS","optional":false},{"name":"Azure","optional":false},{"name":"Chain-of-Thought","optional":false},{"name":"Claude","optional":false},{"name":"Fine-tuning","optional":false},{"name":"GCP","optional":false},{"name":"Human-in-the-Loop","optional":false},{"name":"LangChain","optional":false},{"name":"LangGraph","optional":false},{"name":"LangSmith","optional":false},{"name":"LLM","optional":false},{"name":"LLM Guardrails","optional":false},{"name":"Machine Learning","optional":false},{"name":"Milvus","optional":false},{"name":"Multi-Agent Systems","optional":false},{"name":"OpenAI","optional":false},{"name":"Pinecone","optional":false},{"name":"Prompt Engineering","optional":false},{"name":"Python","optional":false},{"name":"Qdrant","optional":false},{"name":"RAG","optional":false}],"status":"live","first_seen_at":"2026-07-13T22:37:35Z","employer_posted_date":"2026-10-16","last_verified_at":"2026-11-04T03:01:35Z","board_verified":true,"closed_at":null,"days_open":113,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":113},"description":"Fully remote | Complete engagement job\nFounded in Palo Alto by Dr. Andrew Ng and Israel Niezen, Factored helps U.S. companies build and scale world-class AI, ML, and Data teams, powered by the top 1% of LATAM talent, with a defining purpose: To empower brilliant humans, unleash their potential, and amplify their impact in the world.\nAt Factored, you’ll be part of a community that values learning, ownership, and authenticity, where your growth is personal and your ideas matter. We’re transparent, curious, and collaborative. We strive for excellence, celebrate diversity, encourage curiosity, and build an environment where you can truly thrive.\nAs a Machine Learning Engineer specializing in Agentic Workflows, you will design and deliver advanced autonomous AI agents and multi-agent systems that power complex, mission-critical applications for enterprise environments. You’ll work across LLM orchestration frameworks, state management, tool execution, and fine-tuning techniques, owning intelligent automation systems end-to-end from prototyping to production deployment.\nFunctional Responsibilities:\nArchitect how the agent breaks down a complex user request into a series of actionable sub-tasks.\nDevelop \"Plan-and-Execute\" or \"ReAct\" (Reason + Act) patterns where the model thinks before it acts.\nDesign robust systems to maintain \"short-term memory\" across long-running tasks, ensuring the agent doesn't lose track of its goal or get stuck in infinite loops.\nCreate the interface between the LLM and external software, databases, or APIs.\nStandardize how the agent calls functions, interacts with legacy systems, or executes Python code in a sandboxed environment.\nImplement error-handling and self-correction.\nBuild custom evaluation frameworks to measure trajectory success-not just whether the final answer was right, but if the steps taken to get there were efficient and safe.\nSet up monitoring to visualize the agent's \"thought process\" and identify exactly where a multi-step workflow broke down.\nEnsure the agent doesn't \"hallucinate\" tool usage or take unintended actions through strict guardrails and Human-in-the-Loop (HITL) checkpoints for high-stakes decisions.\nQualifications:\n 5+ years of hands-on experience developing and deploying machine learning models in production environments.\nStrong software engineering fundamentals, including data structures, algorithms, system design, OOP, and API design & integration.\nProven experience designing and implementing agentic architectures, including multi-agent workflows, tool-calling, state management, and human-in-the-loop patterns.\nExpertise in integrating Generative AI frameworks and APIs (such as LangChain, LangGraph, OpenAI, and Claude) into production-grade applications.\nStrong understanding of LLM fundamentals, systematic prompt engineering (chain-of-thought, few-shot), and debugging tools like LangSmith or Arize Phoenix.\nExperience with vector databases (Pinecone, Milvus, Qdrant) for retrieval-augmented generation (RAG) and long-term agent memory.\nExperience with cloud platforms such as AWS, GCP, or Azure for deploying AI workloads.\nOur Benefits:\nOwnership through equity participation.\nAnnual company retreat.\nEducation bonus for continuous learning.\nCompany-wide winter break.\nPaid time off.\nOptional in-person events and meetups.\nTailored career roadmaps.\nHigh-performance culture.\nAt Factored, we believe that passionate, smart people expect honesty and transparency, as well as the freedom to do the best work of their lives while learning and growing as much as possible. Great people enjoy working with other passionate, smart people, so we believe in hiring right, and are very selective about who joins our team. Once we hire you, we will invest in you and support your career and professional growth in many meaningful ways. We hire people who are supremely intelligent and talented, but we recognize that intelligence is not enough. Perhaps more importantly, we look for those who are also passionate about our mission and are honest, diligent, collaborative, kind to others, and fun to be around. Life is too short to work with people who don’t inspire you. \nWe are a transparent workplace, where EVERYBODY has a voice in building OUR company, and where learning and growth are available to everyone based on their merits, not just on stamps on their resume. As impressive as some of the stamps on our resumes are, we recognize that human talent and passion exist everywhere, and come from many backgrounds, so stamps matter much less than results. All of us are dedicated doers and are highly energetic, focusing vehemently on execution because we know that the best learning happens by doing. We recognize that we are creating OUR COMPANY TOGETHER, which is not only a high-performing fast-growing business but is changing the way the world perceives the quality of technical talent in Latin America. We are fueled by the great positive impact we are making in the places where we do business and are committed to accelerating careers and investing in hundreds (and hopefully thousands) of highly talented data science engineers and data analysts. \nIn short, our business is about people, so we hire the best people and invest as much as possible in making them fall in love with their work, their learning, and their mission. When not nerding out on data science, we love to make music together, play sports, play games, dance salsa, cook delicious food, brew the best coffee, throw the best parties, and generally have a great time with each other.","description_format":"text","description_chars":5557,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["Continuous learning","Equity"],"hiring_locations":[{"name":"Argentina","iso":"AR","kind":"region"},{"name":"Brazil","iso":"BR","kind":"region"},{"name":"Colombia","iso":"CO","kind":"region"},{"name":"Mexico","iso":"MX","kind":"region"},{"name":"Anguilla","iso":"AI","kind":"region"},{"name":"Antigua and 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