Software Engineer – LLM Systems

🕒 March 18

🇺🇸 United States – Remote

💵 $180k - $220k / year

⏰ Full Time

🟡 Mid-level

🟠 Senior

🧑‍💻 Full-stack Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

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NewtonX

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2017

🤝 B2B

☁️ SaaS

🤖 Artificial Intelligence

💰 $32M Series B - NewtonX on 2021-12

B2B • SaaS • Artificial Intelligence

NewtonX is a B2B market research and insights company that combines AI-enabled data collection, recruitment of verified expert respondents, and synthetic data augmentation to deliver fast, high-quality market intelligence and analysis. The company provides services across brand & communications, customer research, market opportunity, and product research, and offers a SaaS platform (NewtonX Hub and NewtonX Prime) including AI-moderated interviews and an always-on research analyst (Hub Researcher) to help enterprises and agencies turn complex questions into actionable strategy.

📋 Description

• Own the core LLM infrastructure powering two products redefining B2B research. • Build self-serve features that compress weeks into days using RAG and adaptive workflows. • Architect automated systems that continuously capture expert opinions, creating longitudinal datasets and refreshable dashboards. • Fuse structured survey data with unstructured expert knowledge and build semantic search across proprietary corpora.

🎯 Requirements

• 3-4 years of experience shipping production code in a fast-paced environment • Full-stack expertise: Moderate proficiency in React, TypeScript, and modern frontend frameworks. Backend experience with Python, Node.js, or similar • AI/ML implementation experience: Hands-on experience integrating LLMs, building with OpenAI/Anthropic APIs, or implementing ML models in production. • Cloud and infrastructure: Experience with AWS, Docker, and modern deployment practices • Quality mindset: Experience with testing, code reviews, and maintaining high code quality standards • Customer focus: Ability to translate user needs into technical solutions while maintaining engineering best practices.

🏖️ Benefits

• Excellent medical, dental, and vision insurance. • 401k match with immediate vesting. • Generous Paid time off, holidays, and parental leave. • A diverse, collaborative, and positive culture where we invest in and celebrate each other’s success. • Flexible work environment where we work hard but have fun (happy hours, team projects, and retreats).