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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer, Infrastructure (Staff) - **Company:** LIGHTFIELD, INC. - **Location:** San Francisco, CA, United States (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Big Data, Code Review, Data Infrastructure, Data Systems, Relational Databases, Database Design, PostgreSQL, Node.Js, Query Optimization, Next.js, Software Engineering, TypeScript, Workflow Management Systems, ReactJS, Large Language Models, Database Optimization, Backend, Information Technology, Data Analytics, Build Tools, Graphql - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/software-engineer-infrastructure-staff-lightfield-8146664 ## About the Role * 5+ years of experience in software development, with a strong background in infrastructure, data modeling, and backend systems. * Deep experience building scalable, high-performance data infrastructure that can support complex customer workflows and large-scale data processing. * Strong understanding of database design, indexing strategies, and query optimization, especially in PostgreSQL or similar relational databases. * You're excited about Large Language Models (LLMs) and the opportunity to build systems that support and leverage them. * You have the ability to ramp quickly on tech stack that features TypeScript, React, Next.js, Node.js, Apollo GraphQL, and PostgreSQL. * Strong fundamentals in software engineering, with a degree in Computer Science or a related field. * Thrives in ambiguity, able to independently drive projects and deliver results in a fast-moving environment. * Clear communicator, capable of articulating technical decisions to both technical and non-technical stakeholders. * Passionate about building products customers love, ensuring our CRM is intuitive, intelligent, and indispensable. ## Description We're looking for an experienced, creative, and versatile engineer who is eager to tackle the challenge of architecting, building, and scaling the core infrastructure and systems powering Lightfield's AI-driven CRM. At Lightfield, engineers take ownership of projects from inception to impact, collaborating across functions and pushing the envelope on what's possible in applied AI and data systems. You'll play a critical role in designing and building the data models and infrastructure that support a next-generation CRM, ensuring our system is performant, scalable, and resilient. What you'll do * Build and maintain full-stack systems, end-to-end, ensuring reliability, scalability, and performance. * Architect and scale the data infrastructure and backend services that power Lightfield AI-driven CRM. * Design and optimize data models to support CRM workflows, customer interactions, and AI-driven insights. * Develop observability and metrics to enable smooth operation, proactive issue detection, and continuous improvement. * Mentor teammates, participate in code reviews, and help shape engineering culture and practices. * Contribute to building a world-class engineering team through recruiting, mentorship, and knowledge-sharing. ## Related Videos - [GraphQL + Apollo + Next.js: A Lovely Trio](https://www.wearedevelopers.com/videos/311-graphql-apollo-next-js-a-lovely-trio) - [Putting the Graph In GraphQL With The Neo4j GraphQL Library](https://www.wearedevelopers.com/videos/257-putting-the-graph-in-graphql-with-the-neo4j-graphql-library) - [Stop using Node.js like in 2020! What changed and what you can do today with Node.js](https://www.wearedevelopers.com/videos/100011-stop-using-node-js-like-in-2020-what-changed-and-what-you-can-do-today-with-node-js) - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [Postgres in the Age of AI (and Devin)](https://www.wearedevelopers.com/videos/1042-postgres-in-the-age-of-ai-and-devin) - [Stop Using Node.js Like It’s 2020! - Alfonso Graziano](https://www.wearedevelopers.com/videos/1863-stop-using-node-js-like-it-s-2020-alfonso-graziano) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [What Are Large Language Models?](https://www.wearedevelopers.com/magazine/304-what-are-large-language-models) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)