# Software Development Engineer in Test (SDET) at Zefr

- Company: Zefr
- What the company does: Zefr is the leader in AI-powered content classifications for brands and advertisers. Backed by Felicis and IVP.
- Company website: https://zefr.com/
- Type: Startups
- Level: Mid level
- Location: Marina del Rey, CA
- Work setup: Remote
- Posted: 2026-10-13
- Apply by: 2026-11-27
- Apply: https://jobs.ashbyhq.com/zefr/2e63eeac-1d66-4cd2-b3c5-a40aaaf5e844?utm_source=1752vc&utm_medium=careers
- Page: https://www.1752.vc/careers/jobs/zefr-software-development-engineer-in-test-sdet/

## About the role

We're hiring a Software Development Engineer in Test (SDET) with 1–3 years of experience to help own quality across our APIs, web apps, data pipelines and AI-powered services, mainly by writing code rather than running manual test scripts. You'll work inside product engineering teams. You'll decide what to test and how, build and maintain automated tests in a shared framework, and make sure those tests gate every release. You'll also watch production through monitors and alerts. Found on 1752vc Careers, the job board for startup and VC roles.

## What they're looking for

- 1–3 years of experience, ideally as a QA engineer or SDET, with hands-on test automation
- Solid coding skills in at least one language used for test automation. Python is preferred, Java, TypeScript or Go also work
- Experience automating API tests: request and response validation, schema checks and negative cases
- Experience with a modern UI end-to-end framework such as Playwright, Cypress or Selenium
- Working SQL. You can query across tables to confirm data is complete and correct
- Good test design instincts: edge cases, boundary values, negative cases and the test pyramid

Tags: Technology

Source: 1752vc Careers, https://www.1752.vc/careers/jobs/zefr-software-development-engineer-in-test-sdet/