Software Engineer: Infrastructure (Early Career) at Lightfield
Cambridge, MA
$150,000–$170,000
Aug 1, 2026
Cambridge, MA
Sep 24, 2026
What this job asks for AI summary
A full-stack engineering role at an early-stage AI-native CRM startup, focused on designing and scaling the backend data infrastructure, data models, and services that power an LLM-driven product. The work spans the entire stack — from PostgreSQL data modeling and GraphQL APIs to React/Next.js frontends — with a strong emphasis on reliability, observability, and applied AI integration. Suits a generalist engineer comfortable owning projects end-to-end in a fast-moving, ambiguous environment.
Senior level · San Francisco-Oakland-Berkeley, CA · Bachelor's required · Full-time
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How this req sits in the market our data
Roughly 1,150 people in the San Francisco-Oakland-Berkeley, CA area plausibly meet what this posting asks for (software developers). range 610–1,500
Applicant volume Moderate — A normal amount of company. The rare requirements below are what will separate a shortlisted application from the rest.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $190,744 (middle half $167,095–$224,501).
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Aug 2, 2026. It is a model, not a headcount.
Why we read it this way (5)
The posting names the tech stack (TypeScript, React, Next.js, Node.js, Apollo GraphQL, PostgreSQL) under a 'Who you are' section with the framing 'ability to ramp quickly on,' which could be read as preferred rather than a hard gate. However, the language is placed in the primary candidate-requirements block and describes the actual stack the engineer will use daily, so all named technologies are treated as required.
No explicit years-of-experience requirement is stated anywhere in the posting.
The degree requirement ('Computer Science or a related field') is listed in the 'Who you are' requirements block without an 'or equivalent experience' escape clause, so it is treated as a hard requirement.
Location is inferred as San Francisco Bay Area based on the in-office culture signals (commuter stipend, team dinners, Wednesday WFH policy implying other days are in-office), though no city is explicitly stated.
The alt SOC (15-1243 Database Architects) reflects the significant emphasis on data modeling and data infrastructure design, though the full-stack and frontend scope makes 15-1252 the stronger primary fit.
Read the full posting
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