Sanity Developer

3 month remote contract, Outside IR35, Sanity Developer (CMS), Start by 26th October.

A top digital/advertising agency are looking at a rebuild from Drupal onto Sanity (Enterprise) - Phase 2 Create (experience design, content strategy, design and content sprints, technical solution definition) and Phase 3 Build/Launch.

You will have extensive digital/creative/advertising agency experience as well.

Deliverables:

- Sanity content model and Studio configuration - structured content (200+ services, locations, resources), editorial workflows and roles.
- Internationalisation - EN master with Simplified Chinese, Traditional Chinese and Spanish
- Drupal to Sanity content migration
- Front End templates and components WCAG 2.2 AA
- Integrations - HubSpot, Salesforce, GA4/GTM
- AI search & guided wayfinding (Sanity) - embeddings-based search and AI-ready structured content
- Environments, preview/CI pipeline, sprint demos, UAT defect fixing in Jira, technical documentation for hand-off

Experience required:
- 3+ years building full-stack web applications in production; senior level
- Hands-on production experience with Sanity.io - content modelling, GROQ, Studio customisation and custom input components (required)
- Shipped at least two production Sanity.io projects with a live URL
- Experience designing and building headless architectures end to end, not just consuming a pre-configured CMS
- Strong TypeScript, React/Node.js. Next.js or equivalent
- Clean content migrations that do not break downstream consumers
- Rendering strategy (SSR/ISR), image optimisation, SEO fundamentals and Core Web Vitals built in from the start
- Multilingual/localised content in Sanity - document-level translation, fallback hierarchy, locale routing
- CRM and analytics integrations (HubSpot, Salesforce, GA4/GTM) with clean abstractions and resilience to upstream change
- Preview environments, CI checks, rollback; error handling and observability
- Accessible, maintainable component code (WCAG 2.2 AA) that matches design intent
- Documents architectural decisions so the codebase can be extended or handed to the client team

Preferred
- Sanity AI/embeddings features (embeddings index, Sanity Context plugin) or search implementations on structured content
- Enterprise B2B/professional or financial services sites with 200+ structured service and location pages
- Experience onboarding or pairing with an in-house client developer

*Rates depend on experience and client requirements