Infra & Platform Engineer for AI-Driven CRM

SupportFinity™; San Francisco (CA); On-site; USD 150,000 - 300,000; Full time

Benefits offered by this job

Competitive salary

Meaningful equity

Health insurance (medical, dental, vis

3 weeks PTO

11 company holidays + winter break

Paid family leave (3 months)

Work from home Wednesdays

Team events and retreats

401k plan

Commuter and lunch stipend

Job summary

Lightfield, a San Francisco-based AI-native CRM, is seeking an experienced engineer to architect, build, and scale core infrastructure powering AI-driven CRM workflows. You will own data models, back-end services, and observability to ensure performance at scale.

You’ll work across TypeScript, React, Next.js, Node.js, Apollo GraphQL, and PostgreSQL, mentoring teammates and contributing to a culture of excellence in data systems.

Qualifications

• 3+ 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.

Responsibilities

• 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.

Skills

Backend systems

Data modeling

PostgreSQL

LLMs

TypeScript

React

Next.js

Node.js

GraphQL

Software engineering

Education

B.S. in Computer Science

Tools

Apollo GraphQL

PostgreSQL

TypeScript

React

Job description

Lightfield, a San Francisco-based AI-native CRM, is seeking an experienced engineer to architect, build, and scale core infrastructure powering AI-driven CRM workflows. You will own data models, back-end services, and observability to ensure performance at scale.

You’ll work across TypeScript, React, Next.js, Node.js, Apollo GraphQL, and PostgreSQL, mentoring teammates and contributing to a culture of excellence in data systems.