[Remote] Software Engineer- LLM Systems (Remote)

Note: The job is a remote job and is open to candidates in USA. NewtonX delivers AI-powered B2B insights to high-profile clients like McKinsey and Google. The role involves owning the core LLM infrastructure for products that redefine B2B research, focusing on building scalable AI systems and integrating complex data sources. Responsibilities Own the core LLM infrastructure powering two products redefining B2B researchBuild self-serve features that compress weeks into days: question → expert insight → follow-up, powered by RAG and adaptive workflowsArchitect automated systems that continuously capture expert opinions—creating longitudinal datasets and refreshable dashboards that compound in valueFuse structured survey data with unstructured expert knowledge, building semantic search across proprietary corpora, and creating AI pipelines that maintain research-grade quality at scale Skills You write exceptional code, fast. 3-4 years of experience shipping production code in a fast-paced environmentFull-stack expertise: Moderate proficiency in React, TypeScript, and modern frontend frameworks. Backend experience with Python, Node.js, or similarAI/ML implementation experience: Hands-on experience integrating LLMs, building with OpenAI/Anthropic APIs, or implementing ML models in production. We care more about a demonstrated eagerness to learn and an understanding of complex systems than specific yearsCloud and infrastructure: Experience with AWS, Docker, and modern deployment practicesQuality mindset: Experience with testing, code reviews, and maintaining high code quality standardsCustomer focus: Ability to translate user needs into technical solutions while maintaining engineering best practicesRAG systems, embeddings, semantic searchReal-time data processing or streaming architecturesOpen-source contributions in AI/ML Benefits Excellent medical, dental, and vision insurance.401k match with immediate vesting.Generous Paid time off, holidays, and parental leave. Company Overview The world’s leading businesses find their advantage with NewtonX. Make your next bold move with 100% verified B2B insights. It was founded in 2016, and is headquartered in New York, New York, USA, with a workforce of 51-200 employees. Its website is https://www.newtonx.com/. Company H1B Sponsorship NewtonX has a track record of offering H1B sponsorships, with 1 in 2025, 3 in 2023, 5 in 2022, 4 in 2021, 5 in 2020. Please note that this does not guarantee sponsorship for this specific role.