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Lightfield is reimagining CRM as a world model of a business. By learning from emails, meetings, and customer conversations, the company is building a living understanding of how a business works—enabling AI to help teams anticipate what comes next, make better decisions, and take action. More than 5,000 companies have used the product since its November launch. The company has raised over $70M from top-tier investors including Andreessen Horowitz, Coatue, Maverick Ventures, and Greylock. The founding team previously built Tome (25M+ users) and brings experience from Llama, Instagram, Google, and Salesforce.
In this Staff-level full-stack engineering role, you will take end-to-end ownership of projects from inception to impact, collaborating across product, design, and other functions to push the envelope on applied AI systems development. You'll work alongside a talented engineering team to deliver industry-leading solutions and help shape Lightfield's product and technical vision.
Key responsibilities include:
- Collaborating with product leaders to define strategic initiatives, identify critical customer problems, and drive requirements into technical execution
- Building and maintaining complex full-stack product features and systems end-to-end, ensuring reliability, scalability, and performance
- Developing observability and metrics to enable smooth operation, proactive issue detection, and continuous improvement
- Leading technical design discussions, mentoring teammates at multiple levels, conducting thorough code reviews, and helping set engineering best practices and standards
- Contributing to building a world-class engineering team through recruiting, mentorship, and knowledge-sharing
The role emphasizes product-mindedness, ownership, and the ability to tackle highly scalable, performant, and reliable systems that deliver innovative AI product experiences.
Benefits include competitive salary, meaningful early equity, comprehensive health insurance (medical, dental, vision), 3 weeks PTO, 11 paid company holidays plus winter break, 3 months paid family leave, Wednesday work-from-home flexibility, regular team dinners and offsites, 401k plan, and commuter/lunch stipends.
REQUIREMENTS:
- 7+ years of software development experience with strong background in both front-end and back-end technologies
- Experience building large-scale, high-performance, mission-critical systems supporting complex customer workflows and large-scale data processing
- Excitement about Large Language Models (LLMs) and building systems that support and leverage them
- Ability to ramp quickly on tech stack featuring TypeScript, React, Next.js, Node.js, Apollo GraphQL, and PostgreSQL
- Proven ability to design, architect, and scale backend systems in production environments
- Strong software engineering fundamentals with degree in Computer Science or related field (or equivalent industry experience)
- Ability to thrive in ambiguity, independently scope, plan, and lead projects while delivering results in fast-moving environment
- Clear communication skills, capable of articulating technical decisions to both technical and non-technical stakeholders
- Passion for building products customers love, ensuring CRM is intuitive, intelligent, and indispensable
