QA Developer for AI‑Driven Web Apps (Remote)

Terra; San Francisco (CA); Remote; USD 37,000 - 48,000; Full time

Benefits offered by this job

15 observed holidays + 23 PTO days per

Indefinite contract after trial

Permanent remote work + work from home

Professional development budget

Onsite retreats in Bilbao HQ

Dynamic, close-knit team

Job summary

twentysix is seeking a web-focused QA/Developer to work from Europe with Spain office hours. You’ll test features with the AI-assisted workflow, review code for correctness, and help diagnose issues end-to-end using React or Vue, HTML5, and PHP/Node back-ends.

You’ll collaborate with design and technology leads, document breaking cases, and contribute to ongoing performance and security checks. Remote, with opportunities to grow into internal tool development.

Qualifications

• Around 1 year of experience in web development or QA.
• Reading and writing JavaScript with comfort around React or Vue.
• Working knowledge of HTML5 and CSS3, spotting layout, responsive and cross-browser issues.
• Understanding of back-end logic (PHP and/or Node) to follow features end to end.
• Experience testing REST or GraphQL endpoints.
• Experience with Git and Agile environments.
• Comfortable working with AI assistants as part of workflow and prompts.
• Hands-on experience with LLMs, even personal projects.

Responsibilities

• Collaborate with Technology Lead, IA Developers and UX/UI Design Lead to test and develop features.
• Review AI-assisted code before client delivery for correctness and safety against invented APIs or bugs.
• Work with AI Developer to diagnose issues and determine fixes without breaking other parts.
• Trace problems to root causes across front-end, back-end or prompts and ensure fixes are completed.
• Attempt to break AI features and document every failing case.
• Monitor Web Speed Optimization efforts after releases.
• Report proactively to Project Manager and IA Developers and manage schedule to meet deadlines.
• As you grow, take on development tasks in internal tools and client features with the AI Developer.

Skills

JavaScript

React

Vue

HTML5

CSS3

PHP

Node.js

Git

REST

GraphQL

Agile

LLMs

AI prompts

Teamwork

Tools

Git

REST APIs

GraphQL

AI tooling

Job description

twentysix is seeking a web-focused QA/Developer to work from Europe with Spain office hours. You’ll test features with the AI-assisted workflow, review code for correctness, and help diagnose issues end-to-end using React or Vue, HTML5, and PHP/Node back-ends.

You’ll collaborate with design and technology leads, document breaking cases, and contribute to ongoing performance and security checks. Remote, with opportunities to grow into internal tool development.