Senior AI and ML Engineer

Job Description

Senior AI and ML Engineer ? Sigmatic.ai Location: Remote / Hybrid (DELHI) Type: Full-Time Company Overview Sigmatic is redefining operational excellence for ambulatory surgery centers (ASCs) through AI-driven automation and intelligent workflow platforms. Our mission is to eliminate manual processes, unlock real-time decision-making, and empower ASCs to scale profitably. Purpose-built for outpatient facilities, Sigmatic delivers the next generation of operational analytics, financial insights, and digital-twin monitoring?helping surgery centers worldwide operate smarter, faster, and more efficiently. ? Role Overview Responsibilities Design and build LLM-based agents to assist ASC administrators, surgeons, and owners (reports, alerts, insights, financial analytics, equity scenarios). Implement RAG architectures combining: SQL data PDFs/reports/documents Event logs from surgery centers Work with our data model to create a unified data layer powering dashboards and AI experiences. Integrate with AWS Bedrock and related AI services. Expose models and logic via APIs / backend services . Continuously monitor and improve: Model quality Latency Hallucination control (validation, guardrails, feedback loops). Requirements 8+ years in ML / Applied AI. Strong Python; experience with modern LLM tooling (Bedrock, OpenAI, LangChain, etc.). Experience with: Vector databases (e.g., pgvector, Pinecone, Weaviate, etc.) Data engineering fundamentals (ETL pipelines, data cleaning, feature engineering). Comfortable working with SQL and relational data models. Bonus: Healthcare, fintech, or enterprise SaaS background. Prior experience building analytics or operations tools. ? Bachelor?s or Master?s in Computer Science, Engineering, or related field ? 6+ years of full-stack software engineering experience ? 2+ years leading engineering teams or technical projects ? Strong skills in architecture, system design, and code quality ? Excellent communication skills with both technical and non-technical teams ? High levels of ownership, adaptability, and problem-solving ability ? Experience working in agile environments ? Ability to deliver clean, scalable, production-ready features quickly ? Preferred Qualifications ? Experience with healthcare technology, clinical systems, or ASC operations ? Experience building AI-powered applications, automation pipelines, or digital-twin systems ? Background integrating IoT or sensor-driven data ? Start-up or high-growth environment experience ? Why Join Sigmatic? ? Build technology that transforms healthcare and improves patient outcomes ? Work with cutting-edge AI, automation, and digital-twin systems ? Meaningful responsibilities and ownership from day one ? Growing team, massive market, and strong momentum in the ASC industry ? Collaborative, fast-moving culture with impact at the core