Full-Stack Developer – AI, Web Platform

Jobtailor; Makati; On-site; PHP 1,200,000 - 1,600,000; Full time

Job summary

Jobtailor in Manila is seeking a senior web engineer to maintain and extend the DemandScience.com headless stack (Sanity + Next.js + Vercel) and to own the migration pipeline from WordPress to Sanity.

You will design schemas, manage deployments, and integrate AI tools while collaborating with Marketing and Dev teams to ensure robust, scalable content systems.

Qualifications

• 5+ years of professional web development experience with a strong JavaScript/TypeScript foundation.

Responsibilities

• Maintain and extend the DemandScience.com headless stack (Sanity + Next.js + Vercel).
• Complete the ongoing automated migration pipeline moving ~455 pages from WordPress to Sanity.
• Own schema design, component architecture, and Vercel ISR configuration.
• Manage deployments, environment variables, webhook integrations, and staging environments.
• Maintain third‑party integrations including Pardot, GTM, GA4, Hotjar, Drift, and review widgets.
• Design and build agentic workflows where AI handles structured, repeatable tasks such as content extraction, transformation, QA comparison, and draft generation.
• Use the Sanity MCP server and Claude API in production workflows, not just for one‑off prompts.
• Build Vision QA pipelines (Playwright + Claude screenshot comparison) and other automated validation steps.
• Contribute to the AI co‑authoring layer that enables Marketing to publish content with AI assistance and Dev oversight.
• Work with Marketing to define content ownership, review workflows, and editing guardrails in Sanity Studio.
• Reduce Dev dependency for routine content updates by building well‑structured schema and reusable content patterns.
• Document processes so Marketing and non‑technical stakeholders can operate independently

Skills

JavaScript

TypeScript

Agentic engineering patterns

LLM integration

Cross‑functional communication

System design

Content migration

QA & validation pipelines

DevOps basics

Graveyard Shift willingness

Tools

Sanity.io

Next.js

Vercel

Playwright

WordPress REST API

Claude API

GROQ queries

REST APIs

Webhooks

Job description

Responsibilities

• Maintain and extend the DemandScience.com headless stack (Sanity + Next.js + Vercel)
• Complete the ongoing automated migration pipeline moving ~455 pages from WordPress to Sanity
• Own schema design, component architecture, and Vercel ISR configuration
• Manage deployments, environment variables, webhook integrations, and staging environments
• Maintain third‑party integrations including Pardot, GTM, GA4, Hotjar, Drift, and review widgets
• Design and build agentic workflows where AI handles structured, repeatable tasks such as content extraction, transformation, QA comparison, and draft generation
• Use the Sanity MCP server and Claude API in production workflows, not just for one‑off prompts
• Build Vision QA pipelines (Playwright + Claude screenshot comparison) and other automated validation steps
• Contribute to the AI co‑authoring layer that enables Marketing to publish content with AI assistance and Dev oversight
• Work with Marketing to define content ownership, review workflows, and editing guardrails in Sanity Studio
• Reduce Dev dependency for routine content updates by building well‑structured schema and reusable content patterns
• Document processes so Marketing and non‑technical stakeholders can operate independently

Requirements

• 5+ years of professional web development experience with a strong JavaScript/TypeScript foundation
• Demonstrated experience building production applications with agentic engineering patterns: multi‑step AI pipelines, tool use, structured output, human‑in‑the‑loop checkpoints
• Comfortable integrating LLM APIs (Anthropic, OpenAI, or equivalent) into real production systems, not just demos
• Experience with headless CMS architecture and the separation of content from presentation
• Familiarity with REST APIs, webhook‑driven architectures, and JSON‑based content pipelines
• Strong communication skills; able to explain technical tradeoffs clearly to non‑technical stakeholders
• Must be willing to work on Graveyard Shift
• Sanity.io: Schema design, GROQ queries, Sanity Studio customization, MCP integration, and Content Lake concepts
• Vercel: Deployment configuration, ISR, edge functions, environment management, and preview environments
• Next.js: App Router, server components, dynamic routing, and API routes
• Playwright: Automated browser testing and screenshot comparison pipelines
• WordPress: Familiarity with the REST API for migration and extraction work (ongoing pipeline context)
• Claude API: Tool use, vision tasks, structured outputs, and prompt engineering for production workflows